gcc.git
6 years ago* web.c: Remove out-of-date comment.
Artyom Skrobov [Tue, 2 Jan 2018 19:16:44 +0000 (19:16 +0000)]
* web.c: Remove out-of-date comment.

From-SVN: r256106

6 years agoFix REG_ARGS_SIZE handling when pushing TLS addresses
Richard Sandiford [Tue, 2 Jan 2018 19:14:43 +0000 (19:14 +0000)]
Fix REG_ARGS_SIZE handling when pushing TLS addresses

The new assert in add_args_size_note triggered for gcc.dg/tls/opt-3.c
and others on m68k.  This looks like a pre-existing bug: if we pushed
a value that needs a call to something like __tls_get_addr, we ended
up with two different REG_ARGS_SIZE notes on the same instruction.

It seems to be OK for emit_single_push_insn to push something that
needs a call to __tls_get_addr:

      /* We have to allow non-call_pop patterns for the case
 of emit_single_push_insn of a TLS address.  */
      if (GET_CODE (pat) != PARALLEL)
return 0;

so I think the bug is in the way this is handled rather than the fact
that it occurs at all.

If we're pushing a value X that needs a call C to calculate, we'll
add REG_ARGS_SIZE notes to the pushes and pops for C as part of the
call sequence.  Then emit_single_push_insn calls fixup_args_size_notes
on the whole push sequence (the calculation of X, including C,
and the push of X itself).  This is where the double notes came from.
But emit_single_push_insn_1 adjusted stack_pointer_delta *before* the
push, so the notes added for C were relative to the situation after
the future push of X rather than before it.

Presumably this didn't matter in practice because the note added
second tended to trump the note added first.  But code is allowed to
walk REG_NOTES without having to disregard secondary notes.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* expr.c (fixup_args_size_notes): Check that any existing
REG_ARGS_SIZE notes are correct, and don't try to re-add them.
(emit_single_push_insn_1): Move stack_pointer_delta adjustment to...
(emit_single_push_insn): ...here.

From-SVN: r256105

6 years agoMake CONST_VECTOR_ELT handle implicitly-encoded elements
Richard Sandiford [Tue, 2 Jan 2018 18:28:14 +0000 (18:28 +0000)]
Make CONST_VECTOR_ELT handle implicitly-encoded elements

This patch makes CONST_VECTOR_ELT handle implicitly-encoded elements,
in a similar way to VECTOR_CST_ELT.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* rtl.h (CONST_VECTOR_ELT): Redefine to const_vector_elt.
(const_vector_encoded_nelts): New function.
(CONST_VECTOR_NUNITS): Redefine to use GET_MODE_NUNITS.
(const_vector_int_elt, const_vector_elt): Declare.
* emit-rtl.c (const_vector_int_elt_1): New function.
(const_vector_elt): Likewise.
* simplify-rtx.c (simplify_immed_subreg): Avoid taking the address
of CONST_VECTOR_ELT.

From-SVN: r256104

6 years agoMake more use of rtx_vector_builder
Richard Sandiford [Tue, 2 Jan 2018 18:28:06 +0000 (18:28 +0000)]
Make more use of rtx_vector_builder

This patch makes various bits of CONST_VECTOR-building code use
rtx_vector_builder, operating directly on a specific encoding.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* expr.c: Include rtx-vector-builder.h.
(const_vector_mask_from_tree): Use rtx_vector_builder and operate
directly on the tree encoding.
(const_vector_from_tree): Likewise.
* optabs.c: Include rtx-vector-builder.h.
(expand_vec_perm_var): Use rtx_vector_builder and create a repeating
sequence of "u" values.
* vec-perm-indices.c: Include rtx-vector-builder.h.
(vec_perm_indices_to_rtx): Use rtx_vector_builder and operate
directly on the vec_perm_indices encoding.

From-SVN: r256103

6 years agoNew CONST_VECTOR layout
Richard Sandiford [Tue, 2 Jan 2018 18:27:50 +0000 (18:27 +0000)]
New CONST_VECTOR layout

This patch makes CONST_VECTOR use the same encoding as VECTOR_CST.

One problem that occurs in RTL but not at the tree level is that a fair
amount of code uses XVEC and XVECEXP directly on CONST_VECTORs (which is
valid, just with looser checking).  This is complicated by the fact that
vectors are also represented as PARALLELs in some target interfaces,
so using XVECEXP is a good polymorphic way of handling both forms.

Rather than try to untangle all that, the best approach seemed to be to
continue to encode every element in a fixed-length vector.  That way only
target-independent and AArch64 code need to be precise about using
CONST_VECTOR_ELT over XVECEXP.

After this change is no longer valid to modify CONST_VECTORs in-place.
This needed some fix-up in the powerpc backends.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* doc/rtl.texi (const_vector): Describe new encoding scheme.
* Makefile.in (OBJS): Add rtx-vector-builder.o.
* rtx-vector-builder.h: New file.
* rtx-vector-builder.c: Likewise.
* rtl.h (rtx_def::u2): Add a const_vector field.
(CONST_VECTOR_NPATTERNS): New macro.
(CONST_VECTOR_NELTS_PER_PATTERN): Likewise.
(CONST_VECTOR_DUPLICATE_P): Likewise.
(CONST_VECTOR_STEPPED_P): Likewise.
(CONST_VECTOR_ENCODED_ELT): Likewise.
(const_vec_duplicate_p): Check for a duplicated vector encoding.
(unwrap_const_vec_duplicate): Likewise.
(const_vec_series_p): Check for a non-duplicated vector encoding.
Say that the function only returns true for integer vectors.
* emit-rtl.c: Include rtx-vector-builder.h.
(gen_const_vec_duplicate_1): Delete.
(gen_const_vector): Call gen_const_vec_duplicate instead of
gen_const_vec_duplicate_1.
(const_vec_series_p_1): Operate directly on the CONST_VECTOR encoding.
(gen_const_vec_duplicate): Use rtx_vector_builder.
(gen_const_vec_series): Likewise.
(gen_rtx_CONST_VECTOR): Likewise.
* config/powerpcspe/powerpcspe.c: Include rtx-vector-builder.h.
(swap_const_vector_halves): Take an rtx pointer rather than rtx.
Build a new vector rather than modifying a CONST_VECTOR in-place.
(handle_special_swappables): Update call accordingly.
* config/rs6000/rs6000-p8swap.c: Include rtx-vector-builder.h.
(swap_const_vector_halves): Take an rtx pointer rather than rtx.
Build a new vector rather than modifying a CONST_VECTOR in-place.
(handle_special_swappables): Update call accordingly.

From-SVN: r256102

6 years agoUse CONST_VECTOR_ELT instead of XVECEXP
Richard Sandiford [Tue, 2 Jan 2018 18:27:42 +0000 (18:27 +0000)]
Use CONST_VECTOR_ELT instead of XVECEXP

This patch replaces target-independent uses of XVECEXP with uses
of CONST_VECTOR_ELT.  This kind of replacement isn't necessary
for code specific to targets other than AArch64.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* simplify-rtx.c (simplify_const_binary_operation): Use
CONST_VECTOR_ELT instead of XVECEXP.

From-SVN: r256101

6 years agoUse ssizetype selectors for autovectorised VEC_PERM_EXPRs
Richard Sandiford [Tue, 2 Jan 2018 18:27:35 +0000 (18:27 +0000)]
Use ssizetype selectors for autovectorised VEC_PERM_EXPRs

The previous patches mean that there's no reason that constant
VEC_PERM_EXPRs need to have the same shape as the data inputs.
This patch makes the autovectoriser use sizetype elements instead,
so that indices don't get truncated for large or variable-length
vectors.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* tree-cfg.c (verify_gimple_assign_ternary): Allow the size of
the selector elements to be different from the data elements
if the selector is a VECTOR_CST.
* tree-vect-stmts.c (vect_gen_perm_mask_any): Use a vector of
ssizetype for the selector.

From-SVN: r256100

6 years agoUse vec_perm_builder::series_p in shift_amt_for_vec_perm_mask
Richard Sandiford [Tue, 2 Jan 2018 18:27:24 +0000 (18:27 +0000)]
Use vec_perm_builder::series_p in shift_amt_for_vec_perm_mask

This patch makes shift_amt_for_vec_perm_mask use series_p to check
for the simple case of a natural linear series before falling back
to testing each element individually.  The series_p test works with
variable-length vectors but testing every individual element doesn't.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* optabs.c (shift_amt_for_vec_perm_mask): Try using series_p
before testing each element individually.
* tree-vect-generic.c (lower_vec_perm): Likewise.

From-SVN: r256099

6 years agoRework VEC_PERM_EXPR folding
Richard Sandiford [Tue, 2 Jan 2018 18:27:15 +0000 (18:27 +0000)]
Rework VEC_PERM_EXPR folding

This patch reworks the VEC_PERM_EXPR folding so that more of it
works for variable-length vectors.  E.g. it means that we can
now recognise variable-length permutes that reduce to a single
vector, or cases in which a variable-length permute only needs
one input.  There should be no functional change for fixed-length
vectors.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* selftest.h (selftest::vec_perm_indices_c_tests): Declare.
* selftest-run-tests.c (selftest::run_tests): Call it.
* vector-builder.h (vector_builder::operator ==): New function.
(vector_builder::operator !=): Likewise.
* vec-perm-indices.h (vec_perm_indices::series_p): Declare.
(vec_perm_indices::all_from_input_p): New function.
* vec-perm-indices.c (vec_perm_indices::series_p): Likewise.
(test_vec_perm_12, selftest::vec_perm_indices_c_tests): Likewise.
* fold-const.c (fold_ternary_loc): Use tree_to_vec_perm_builder
instead of reading the VECTOR_CST directly.  Detect whether both
vector inputs are the same before constructing the vec_perm_indices,
and update the number of inputs argument accordingly.  Use the
utility functions added above.  Only construct sel2 if we need to.

From-SVN: r256098

6 years agoUse explicit encodings for simple permutes
Richard Sandiford [Tue, 2 Jan 2018 18:27:05 +0000 (18:27 +0000)]
Use explicit encodings for simple permutes

This patch makes users of vec_perm_builders use the compressed encoding
where possible.  This means that they work with variable-length vectors.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* optabs.c (expand_vec_perm_var): Use an explicit encoding for
the broadcast of the low byte.
(expand_mult_highpart): Use an explicit encoding for the permutes.
* optabs-query.c (can_mult_highpart_p): Likewise.
* tree-vect-loop.c (calc_vec_perm_mask_for_shift): Likewise.
* tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
(vectorizable_bswap): Likewise.
* tree-vect-data-refs.c (vect_grouped_store_supported): Use an
explicit encoding for the power-of-2 permutes.
(vect_permute_store_chain): Likewise.
(vect_grouped_load_supported): Likewise.
(vect_permute_load_chain): Likewise.

From-SVN: r256097

6 years agoAdd a vec_perm_indices_to_tree helper function
Richard Sandiford [Tue, 2 Jan 2018 18:26:56 +0000 (18:26 +0000)]
Add a vec_perm_indices_to_tree helper function

This patch adds a function for creating a VECTOR_CST from a
vec_perm_indices, operating directly on the encoding.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* vec-perm-indices.h (vec_perm_indices_to_tree): Declare.
* vec-perm-indices.c (vec_perm_indices_to_tree): New function.
* tree-ssa-forwprop.c (simplify_vector_constructor): Use it.
* tree-vect-slp.c (vect_transform_slp_perm_load): Likewise.
* tree-vect-stmts.c (vectorizable_bswap): Likewise.
(vect_gen_perm_mask_any): Likewise.

From-SVN: r256096

6 years agoMake vec_perm_indices use new vector encoding
Richard Sandiford [Tue, 2 Jan 2018 18:26:47 +0000 (18:26 +0000)]
Make vec_perm_indices use new vector encoding

This patch changes vec_perm_indices from a plain vec<> to a class
that stores a canonicalized permutation, using the same encoding
as for VECTOR_CSTs.  This means that vec_perm_indices now carries
information about the number of vectors being permuted (currently
always 1 or 2) and the number of elements in each input vector.

A new vec_perm_builder class is used to actually build up the vector,
like tree_vector_builder does for trees.  vec_perm_indices is the
completed representation, a bit like VECTOR_CST is for trees.

The patch just does a mechanical conversion of the code to
vec_perm_builder: a later patch uses explicit encodings where possible.

The point of all this is that it makes the representation suitable
for variable-length vectors.  It's no longer necessary for the
underlying vec<>s to store every element explicitly.

In int-vector-builder.h, "using the same encoding as tree and rtx constants"
describes the endpoint -- adding the rtx encoding comes later.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* int-vector-builder.h: New file.
* vec-perm-indices.h: Include int-vector-builder.h.
(vec_perm_indices): Redefine as an int_vector_builder.
(auto_vec_perm_indices): Delete.
(vec_perm_builder): Redefine as a stand-alone class.
(vec_perm_indices::vec_perm_indices): New function.
(vec_perm_indices::clamp): Likewise.
* vec-perm-indices.c: Include fold-const.h and tree-vector-builder.h.
(vec_perm_indices::new_vector): New function.
(vec_perm_indices::new_expanded_vector): Update for new
vec_perm_indices class.
(vec_perm_indices::rotate_inputs): New function.
(vec_perm_indices::all_in_range_p): Operate directly on the
encoded form, without computing elided elements.
(tree_to_vec_perm_builder): Operate directly on the VECTOR_CST
encoding.  Update for new vec_perm_indices class.
* optabs.c (expand_vec_perm_const): Create a vec_perm_indices for
the given vec_perm_builder.
(expand_vec_perm_var): Update vec_perm_builder constructor.
(expand_mult_highpart): Use vec_perm_builder instead of
auto_vec_perm_indices.
* optabs-query.c (can_mult_highpart_p): Use vec_perm_builder and
vec_perm_indices instead of auto_vec_perm_indices.  Use a single
or double series encoding as appropriate.
* fold-const.c (fold_ternary_loc): Use vec_perm_builder and
vec_perm_indices instead of auto_vec_perm_indices.
* tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
* tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
(vect_permute_store_chain): Likewise.
(vect_grouped_load_supported): Likewise.
(vect_permute_load_chain): Likewise.
(vect_shift_permute_load_chain): Likewise.
* tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
(vect_transform_slp_perm_load): Likewise.
(vect_schedule_slp_instance): Likewise.
* tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
(vectorizable_mask_load_store): Likewise.
(vectorizable_bswap): Likewise.
(vectorizable_store): Likewise.
(vectorizable_load): Likewise.
* tree-vect-generic.c (lower_vec_perm): Use vec_perm_builder and
vec_perm_indices instead of auto_vec_perm_indices.  Use
tree_to_vec_perm_builder to read the vector from a tree.
* tree-vect-loop.c (calc_vec_perm_mask_for_shift): Take a
vec_perm_builder instead of a vec_perm_indices.
(have_whole_vector_shift): Use vec_perm_builder and
vec_perm_indices instead of auto_vec_perm_indices.  Leave the
truncation to calc_vec_perm_mask_for_shift.
(vect_create_epilog_for_reduction): Likewise.
* config/aarch64/aarch64.c (expand_vec_perm_d::perm): Change
from auto_vec_perm_indices to vec_perm_indices.
(aarch64_expand_vec_perm_const_1): Use rotate_inputs on d.perm
instead of changing individual elements.
(aarch64_vectorize_vec_perm_const): Use new_vector to install
the vector in d.perm.
* config/arm/arm.c (expand_vec_perm_d::perm): Change
from auto_vec_perm_indices to vec_perm_indices.
(arm_expand_vec_perm_const_1): Use rotate_inputs on d.perm
instead of changing individual elements.
(arm_vectorize_vec_perm_const): Use new_vector to install
the vector in d.perm.
* config/powerpcspe/powerpcspe.c (rs6000_expand_extract_even):
Update vec_perm_builder constructor.
(rs6000_expand_interleave): Likewise.
* config/rs6000/rs6000.c (rs6000_expand_extract_even): Likewise.
(rs6000_expand_interleave): Likewise.

From-SVN: r256095

6 years agoCheck whether a vector of QIs can store all indices
Richard Sandiford [Tue, 2 Jan 2018 18:26:35 +0000 (18:26 +0000)]
Check whether a vector of QIs can store all indices

The patch to remove the vec_perm_const optab checked whether replacing
a constant permute with a variable permute is safe, or whether it might
truncate the indices.  This patch adds a corresponding check for whether
variable permutes can be lowered to QImode-based permutes.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* optabs-query.c (can_vec_perm_var_p): Check whether lowering
to qimode could truncate the indices.
* optabs.c (expand_vec_perm_var): Likewise.

From-SVN: r256094

6 years agoRemove vec_perm_const optab
Richard Sandiford [Tue, 2 Jan 2018 18:26:27 +0000 (18:26 +0000)]
Remove vec_perm_const optab

One of the changes needed for variable-length VEC_PERM_EXPRs -- and for
long fixed-length VEC_PERM_EXPRs -- is the ability to use constant
selectors that wouldn't fit in the vectors being permuted.  E.g. a
permute on two V256QIs can't be done using a V256QI selector.

At the moment constant permutes use two interfaces:
targetm.vectorizer.vec_perm_const_ok for testing whether a permute is
valid and the vec_perm_const optab for actually emitting the permute.
The former gets passed a vec<> selector and the latter an rtx selector.
Most ports share a lot of code between the hook and the optab, with a
wrapper function for each interface.

We could try to keep that interface and require ports to define wider
vector modes that could be attached to the CONST_VECTOR (e.g. V256HI or
V256SI in the example above).  But building a CONST_VECTOR rtx seems a bit
pointless here, since the expand code only creates the CONST_VECTOR in
order to call the optab, and the first thing the target does is take
the CONST_VECTOR apart again.

The easiest approach therefore seemed to be to remove the optab and
reuse the target hook to emit the code.  One potential drawback is that
it's no longer possible to use match_operand predicates to force
operands into the required form, but in practice all targets want
register operands anyway.

The patch also changes vec_perm_indices into a class that provides
some simple routines for handling permutations.  A later patch will
flesh this out and get rid of auto_vec_perm_indices, but I didn't
want to do all that in this patch and make it more complicated than
it already is.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* Makefile.in (OBJS): Add vec-perm-indices.o.
* vec-perm-indices.h: New file.
* vec-perm-indices.c: Likewise.
* target.h (vec_perm_indices): Replace with a forward class
declaration.
(auto_vec_perm_indices): Move to vec-perm-indices.h.
* optabs.h: Include vec-perm-indices.h.
(expand_vec_perm): Delete.
(selector_fits_mode_p, expand_vec_perm_var): Declare.
(expand_vec_perm_const): Declare.
* target.def (vec_perm_const_ok): Replace with...
(vec_perm_const): ...this new hook.
* doc/tm.texi.in (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Replace with...
(TARGET_VECTORIZE_VEC_PERM_CONST): ...this new hook.
* doc/tm.texi: Regenerate.
* optabs.def (vec_perm_const): Delete.
* doc/md.texi (vec_perm_const): Likewise.
(vec_perm): Refer to TARGET_VECTORIZE_VEC_PERM_CONST.
* expr.c (expand_expr_real_2): Use expand_vec_perm_const rather than
expand_vec_perm for constant permutation vectors.  Assert that
the mode of variable permutation vectors is the integer equivalent
of the mode that is being permuted.
* optabs-query.h (selector_fits_mode_p): Declare.
* optabs-query.c: Include vec-perm-indices.h.
(selector_fits_mode_p): New function.
(can_vec_perm_const_p): Check whether targetm.vectorize.vec_perm_const
is defined, instead of checking whether the vec_perm_const_optab
exists.  Use targetm.vectorize.vec_perm_const instead of
targetm.vectorize.vec_perm_const_ok.  Check whether the indices
fit in the vector mode before using a variable permute.
* optabs.c (shift_amt_for_vec_perm_mask): Take a mode and a
vec_perm_indices instead of an rtx.
(expand_vec_perm): Replace with...
(expand_vec_perm_const): ...this new function.  Take the selector
as a vec_perm_indices rather than an rtx.  Also take the mode of
the selector.  Update call to shift_amt_for_vec_perm_mask.
Use targetm.vectorize.vec_perm_const instead of vec_perm_const_optab.
Use vec_perm_indices::new_expanded_vector to expand the original
selector into bytes.  Check whether the indices fit in the vector
mode before using a variable permute.
(expand_vec_perm_var): Make global.
(expand_mult_highpart): Use expand_vec_perm_const.
* fold-const.c: Includes vec-perm-indices.h.
* tree-ssa-forwprop.c: Likewise.
* tree-vect-data-refs.c: Likewise.
* tree-vect-generic.c: Likewise.
* tree-vect-loop.c: Likewise.
* tree-vect-slp.c: Likewise.
* tree-vect-stmts.c: Likewise.
* config/aarch64/aarch64-protos.h (aarch64_expand_vec_perm_const):
Delete.
* config/aarch64/aarch64-simd.md (vec_perm_const<mode>): Delete.
* config/aarch64/aarch64.c (aarch64_expand_vec_perm_const)
(aarch64_vectorize_vec_perm_const_ok): Fuse into...
(aarch64_vectorize_vec_perm_const): ...this new function.
(TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
(TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
* config/arm/arm-protos.h (arm_expand_vec_perm_const): Delete.
* config/arm/vec-common.md (vec_perm_const<mode>): Delete.
* config/arm/arm.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
(TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
(arm_expand_vec_perm_const, arm_vectorize_vec_perm_const_ok): Merge
into...
(arm_vectorize_vec_perm_const): ...this new function.  Explicitly
check for NEON modes.
* config/i386/i386-protos.h (ix86_expand_vec_perm_const): Delete.
* config/i386/sse.md (VEC_PERM_CONST, vec_perm_const<mode>): Delete.
* config/i386/i386.c (ix86_expand_vec_perm_const_1): Update comment.
(ix86_expand_vec_perm_const, ix86_vectorize_vec_perm_const_ok): Merge
into...
(ix86_vectorize_vec_perm_const): ...this new function.  Incorporate
the old VEC_PERM_CONST conditions.
* config/ia64/ia64-protos.h (ia64_expand_vec_perm_const): Delete.
* config/ia64/vect.md (vec_perm_const<mode>): Delete.
* config/ia64/ia64.c (ia64_expand_vec_perm_const)
(ia64_vectorize_vec_perm_const_ok): Merge into...
(ia64_vectorize_vec_perm_const): ...this new function.
* config/mips/loongson.md (vec_perm_const<mode>): Delete.
* config/mips/mips-msa.md (vec_perm_const<mode>): Delete.
* config/mips/mips-ps-3d.md (vec_perm_constv2sf): Delete.
* config/mips/mips-protos.h (mips_expand_vec_perm_const): Delete.
* config/mips/mips.c (mips_expand_vec_perm_const)
(mips_vectorize_vec_perm_const_ok): Merge into...
(mips_vectorize_vec_perm_const): ...this new function.
* config/powerpcspe/altivec.md (vec_perm_constv16qi): Delete.
* config/powerpcspe/paired.md (vec_perm_constv2sf): Delete.
* config/powerpcspe/spe.md (vec_perm_constv2si): Delete.
* config/powerpcspe/vsx.md (vec_perm_const<mode>): Delete.
* config/powerpcspe/powerpcspe-protos.h (altivec_expand_vec_perm_const)
(rs6000_expand_vec_perm_const): Delete.
* config/powerpcspe/powerpcspe.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK):
Delete.
(TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
(altivec_expand_vec_perm_const_le): Take each operand individually.
Operate on constant selectors rather than rtxes.
(altivec_expand_vec_perm_const): Likewise.  Update call to
altivec_expand_vec_perm_const_le.
(rs6000_expand_vec_perm_const): Delete.
(rs6000_vectorize_vec_perm_const_ok): Delete.
(rs6000_vectorize_vec_perm_const): New function.
(rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
an element count and rtx array.
(rs6000_expand_extract_even): Update call accordingly.
(rs6000_expand_interleave): Likewise.
* config/rs6000/altivec.md (vec_perm_constv16qi): Delete.
* config/rs6000/paired.md (vec_perm_constv2sf): Delete.
* config/rs6000/vsx.md (vec_perm_const<mode>): Delete.
* config/rs6000/rs6000-protos.h (altivec_expand_vec_perm_const)
(rs6000_expand_vec_perm_const): Delete.
* config/rs6000/rs6000.c (TARGET_VECTORIZE_VEC_PERM_CONST_OK): Delete.
(TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.
(altivec_expand_vec_perm_const_le): Take each operand individually.
Operate on constant selectors rather than rtxes.
(altivec_expand_vec_perm_const): Likewise.  Update call to
altivec_expand_vec_perm_const_le.
(rs6000_expand_vec_perm_const): Delete.
(rs6000_vectorize_vec_perm_const_ok): Delete.
(rs6000_vectorize_vec_perm_const): New function.  Remove stray
reference to the SPE evmerge intructions.
(rs6000_do_expand_vec_perm): Take a vec_perm_builder instead of
an element count and rtx array.
(rs6000_expand_extract_even): Update call accordingly.
(rs6000_expand_interleave): Likewise.
* config/sparc/sparc.md (vec_perm_constv8qi): Delete in favor of...
* config/sparc/sparc.c (sparc_vectorize_vec_perm_const): ...this
new function.
(TARGET_VECTORIZE_VEC_PERM_CONST): Redefine.

From-SVN: r256093

6 years agoRefactor expand_vec_perm
Richard Sandiford [Tue, 2 Jan 2018 18:26:16 +0000 (18:26 +0000)]
Refactor expand_vec_perm

This patch splits the variable handling out of expand_vec_perm into
a subroutine, so that the next patch can use a different interface
for expanding constant permutes.  expand_vec_perm now does all the
CONST_VECTOR handling directly and defers to expand_vec_perm_var
for other rtx codes.  Handling CONST_VECTORs includes handling the
fallback to variable permutes.

The patch also adds an assert for valid optab modes to expand_vec_perm_1,
so that we get it when using optabs for CONST_VECTORs.  The MODE_VECTOR_INT
part was previously in expand_vec_perm and the mode_for_int_vector part
is new.

Most of the patch is just reindentation.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* optabs.c (expand_vec_perm_1): Assert that SEL has an integer
vector mode and that that mode matches the mode of the data
being permuted.
(expand_vec_perm): Split handling of non-CONST_VECTOR selectors
out into expand_vec_perm_var.  Do all CONST_VECTOR handling here,
directly using expand_vec_perm_1 when forcing selectors into
registers.
(expand_vec_perm_var): New function, split out from expand_vec_perm.

From-SVN: r256092

6 years agoSplit can_vec_perm_p into can_vec_perm_{var,const}_p
Richard Sandiford [Tue, 2 Jan 2018 18:26:06 +0000 (18:26 +0000)]
Split can_vec_perm_p into can_vec_perm_{var,const}_p

This patch splits can_vec_perm_p into two functions: can_vec_perm_var_p
for testing permute operations with variable selection vectors, and
can_vec_perm_const_p for testing permute operations with specific
constant selection vectors.  This means that we can pass the constant
selection vector by reference.

Constant permutes can still use a variable permute as a fallback.
A later patch adds a check to makre sure that we don't truncate the
vector indices when doing this.

However, have_whole_vector_shift checked:

  if (direct_optab_handler (vec_perm_const_optab, mode) == CODE_FOR_nothing)
    return false;

which had the effect of disallowing the fallback to variable permutes.
I'm not sure whether that was the intention or whether it was just
supposed to short-cut the loop on targets that don't support permutes.
(But then why bother?  The first check in the loop would fail and
we'd bail out straightaway.)

The patch adds a parameter for disallowing the fallback.  I think it
makes sense to do this for the following code in the VEC_PERM_EXPR
folder:

  /* Some targets are deficient and fail to expand a single
     argument permutation while still allowing an equivalent
     2-argument version.  */
  if (need_mask_canon && arg2 == op2
      && !can_vec_perm_p (TYPE_MODE (type), false, &sel)
      && can_vec_perm_p (TYPE_MODE (type), false, &sel2))

since it's really testing whether the expand_vec_perm_const code expects
a particular form.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* optabs-query.h (can_vec_perm_p): Delete.
(can_vec_perm_var_p, can_vec_perm_const_p): Declare.
* optabs-query.c (can_vec_perm_p): Split into...
(can_vec_perm_var_p, can_vec_perm_const_p): ...these two functions.
(can_mult_highpart_p): Use can_vec_perm_const_p to test whether a
particular selector is valid.
* tree-ssa-forwprop.c (simplify_vector_constructor): Likewise.
* tree-vect-data-refs.c (vect_grouped_store_supported): Likewise.
(vect_grouped_load_supported): Likewise.
(vect_shift_permute_load_chain): Likewise.
* tree-vect-slp.c (vect_build_slp_tree_1): Likewise.
(vect_transform_slp_perm_load): Likewise.
* tree-vect-stmts.c (perm_mask_for_reverse): Likewise.
(vectorizable_bswap): Likewise.
(vect_gen_perm_mask_checked): Likewise.
* fold-const.c (fold_ternary_loc): Likewise.  Don't take
implementations of variable permutation vectors into account
when deciding which selector to use.
* tree-vect-loop.c (have_whole_vector_shift): Don't check whether
vec_perm_const_optab is supported; instead use can_vec_perm_const_p
with a false third argument.
* tree-vect-generic.c (lower_vec_perm): Use can_vec_perm_const_p
to test whether the constant selector is valid and can_vec_perm_var_p
to test whether a variable selector is valid.

From-SVN: r256091

6 years agoPass vec_perm_indices by reference
Richard Sandiford [Tue, 2 Jan 2018 18:25:57 +0000 (18:25 +0000)]
Pass vec_perm_indices by reference

This patch makes functions take vec_perm_indices by reference rather
than value, since a later patch will turn vec_perm_indices into a class
that would be more expensive to copy.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* optabs-query.h (can_vec_perm_p): Take a const vec_perm_indices *.
* optabs-query.c (can_vec_perm_p): Likewise.
* fold-const.c (fold_vec_perm): Take a const vec_perm_indices &
instead of vec_perm_indices.
* tree-vectorizer.h (vect_gen_perm_mask_any): Likewise,
(vect_gen_perm_mask_checked): Likewise,
* tree-vect-stmts.c (vect_gen_perm_mask_any): Likewise,
(vect_gen_perm_mask_checked): Likewise,

From-SVN: r256090

6 years agoThe vec_perm code falls back to doing byte-level permutes if element-level permutes...
Richard Sandiford [Tue, 2 Jan 2018 18:25:45 +0000 (18:25 +0000)]
The vec_perm code falls back to doing byte-level permutes if element-level permutes aren't supported.

qimode_for_vec_perm

The vec_perm code falls back to doing byte-level permutes if
element-level permutes aren't supported.  There were two copies
of the code to calculate the mode, and later patches add another,
so this patch splits it out into a helper function.

2018-01-02  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* optabs-query.h (qimode_for_vec_perm): Declare.
* optabs-query.c (can_vec_perm_p): Split out qimode search to...
(qimode_for_vec_perm): ...this new function.
* optabs.c (expand_vec_perm): Use qimode_for_vec_perm.

From-SVN: r256089

6 years agore PR fortran/45689 ([F03] Missing transformational intrinsic in the trans_func_f2003...
Thomas Koenig [Tue, 2 Jan 2018 18:14:04 +0000 (18:14 +0000)]
re PR fortran/45689 ([F03] Missing transformational intrinsic in the trans_func_f2003 list)

2017-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/45689
* intrinsic.c (add_function): Add gfc_simplify_maxloc and
gfc_simplify_minloc to maxloc and minloc, respectively.
* intrinsic.h: Add prototypes for gfc_simplify_minloc
and gfc_simplify_maxloc.
* simplify.c (min_max_chose): Adjust prototype.  Modify function
to have a return value which indicates if the extremum was found.
(is_constant_array_expr): Fix typo in comment.
(simplify_minmaxloc_to_scalar): New function.
(simplify_minmaxloc_nodim): New function.
(new_array): New function.
(simplify_minmaxloc_to_array): New function.
(gfc_simplify_minmaxloc): New function.
(simplify_minloc): New function.
(simplify_maxloc): New function.

2017-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/45689
* gfortran.dg/minloc_4.f90: New test case.
* gfortran.dg/maxloc_4.f90: New test case.

From-SVN: r256088

6 years agore PR c++/83556 (ICE in gimplify_expr, at gimplify.c:12004)
Jakub Jelinek [Tue, 2 Jan 2018 18:04:19 +0000 (19:04 +0100)]
re PR c++/83556 (ICE in gimplify_expr, at gimplify.c:12004)

PR c++/83556
* tree.c (replace_placeholders_r): Pass NULL as last argument to
cp_walk_tree instead of d->pset.  If non-TREE_CONSTANT and
non-PLACEHOLDER_EXPR tree has been seen already, set *walk_subtrees
to false and return.
(replace_placeholders): Pass NULL instead of &pset as last argument
to cp_walk_tree.

* g++.dg/cpp0x/pr83556.C: New test.

From-SVN: r256086

6 years agore PR fortran/45689 ([F03] Missing transformational intrinsic in the trans_func_f2003...
Thomas Koenig [Tue, 2 Jan 2018 17:51:26 +0000 (17:51 +0000)]
re PR fortran/45689 ([F03] Missing transformational intrinsic in the trans_func_f2003 list)

2018-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/45689
PR fortran/83650
* simplify.c (gfc_simplify_cshift): Re-implement to allow full
range of arguments.

2018-01-02  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/45689
PR fortran/83650
* gfortran.dg/simplify_cshift_1.f90: Correct erroneous case.
* gfortran.dg/simplify_cshift_4.f90: New test.

From-SVN: r256084

6 years agoAdd missing changelog entry:
Aaron Sawdey [Tue, 2 Jan 2018 17:02:17 +0000 (11:02 -0600)]
Add missing changelog entry:

2017-12-12  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        PR target/82190
        * config/rs6000/rs6000-string.c (expand_block_compare,
        expand_strn_compare): Fix set_mem_size() calls.

From-SVN: r256083

6 years agore PR c++/83644 (ICE using type alias from recursive decltype in noexcept or return...
Marek Polacek [Tue, 2 Jan 2018 17:02:14 +0000 (17:02 +0000)]
re PR c++/83644 (ICE using type alias from recursive decltype in noexcept or return type)

PR c++/83644
* g++.dg/cpp1z/pr83644.C: New test.

From-SVN: r256082

6 years agortlanal.c (canonicalize_condition): Return 0 if final rtx does not have a conditional...
Aaron Sawdey [Tue, 2 Jan 2018 16:58:05 +0000 (10:58 -0600)]
rtlanal.c (canonicalize_condition): Return 0 if final rtx does not have a conditional at the top.

2018-01-02  Aaron Sawdey  <acsawdey@linux.vnet.ibm.com>

        * rtlanal.c (canonicalize_condition): Return 0 if final rtx
        does not have a conditional at the top.

Forgot this changelog entry.

From-SVN: r256081

6 years agortlanal.c (canonicalize_condition): Return 0 if final rtx does not have a conditional...
Aaron Sawdey [Tue, 2 Jan 2018 16:46:29 +0000 (10:46 -0600)]
rtlanal.c (canonicalize_condition): Return 0 if final rtx does not have a conditional at the top.

        * rtlanal.c (canonicalize_condition): Return 0 if final rtx
        does not have a conditional at the top.

From-SVN: r256079

6 years agore PR c++/81860 (Call to undefined inline function involving inheriting constructors)
Marek Polacek [Tue, 2 Jan 2018 15:05:09 +0000 (15:05 +0000)]
re PR c++/81860 (Call to undefined inline function involving inheriting constructors)

PR c++/81860
* g++.dg/cpp0x/inh-ctor30.C: New test.

From-SVN: r256076

6 years ago[C++ PATCH] tiny code cleanup
Nathan Sidwell [Tue, 2 Jan 2018 14:51:06 +0000 (14:51 +0000)]
[C++ PATCH] tiny code cleanup

https://gcc.gnu.org/ml/gcc-patches/2018-01/msg00041.html
* constexpr.c (cxx_bind_parameters_in_call): Remove unneeded local
lval var.

From-SVN: r256075

6 years agoPR libgfortran/83649 Chunk large reads and writes
Janne Blomqvist [Tue, 2 Jan 2018 13:25:10 +0000 (15:25 +0200)]
PR libgfortran/83649 Chunk large reads and writes

It turns out that Linux never reads or writes more than 2147479552
bytes in a single syscall. For writes this is not a problem as
libgfortran already contains a loop around write() to handle short
writes. But for reads we cannot do this, since then read will hang if
we have a short read when reading from the terminal.  Also, there are
reports that macOS fails I/O's larger than 2 GB.  Thus, to work around
these issues do large reads/writes in chunks.

The testcase from the PR

program largewr
  integer(kind=1) :: a(2_8**31+1)
  a = 0
  a(size(a, kind=8)) = 1
  open(10, file="largewr.dat", access="stream", form="unformatted")
  write (10) a
  close(10)
  a(size(a, kind=8)) = 2
  open(10, file="largewr.dat", access="stream", form="unformatted")
  read (10) a
  if (a(size(a, kind=8)) == 1) then
    print *, "All is well"
  else
    print *, "Oh no"
  end if
end program largewr

fails on trunk but works with the patch.

Regtested on x86_64-pc-linux-gnu, committed to trunk.

libgfortran/ChangeLog:

2018-01-02  Janne Blomqvist  <jb@gcc.gnu.org>

PR libgfortran/83649
* io/unix.c (MAX_CHUNK): New define.
(raw_read): For reads larger than MAX_CHUNK, loop.
(raw_write): Write no more than MAX_CHUNK bytes per iteration.

From-SVN: r256074

6 years agore PR target/81616 (Update -mtune=generic for the current Intel and AMD processors)
Jan Hubicka [Tue, 2 Jan 2018 13:04:19 +0000 (14:04 +0100)]
re PR target/81616 (Update -mtune=generic for the current Intel and AMD processors)

PR target/81616
* config/i386/x86-tune-costs.h: Increase cost of integer load costs
for generic 4->6.

From-SVN: r256073

6 years agoipa-inline.c (big_speedup_p): Fix expression.
Richard Biener [Tue, 2 Jan 2018 12:35:53 +0000 (12:35 +0000)]
ipa-inline.c (big_speedup_p): Fix expression.

2018-01-02  Richard Biener  <rguenther@suse.de>

* ipa-inline.c (big_speedup_p): Fix expression.

From-SVN: r256072

6 years agoadd comment about why valid
Nathan Sidwell [Tue, 2 Jan 2018 12:35:02 +0000 (12:35 +0000)]
add comment about why valid

From-SVN: r256071

6 years agore PR target/81616 (Update -mtune=generic for the current Intel and AMD processors)
Jan Hubicka [Tue, 2 Jan 2018 09:31:47 +0000 (10:31 +0100)]
re PR target/81616 (Update -mtune=generic for the current Intel and AMD processors)

PR target/81616
* x86-tune-costs.h (generic_cost): Reduce cost of FDIV 20->17,
cost of sqrt 20->14, DIVSS 18->13, DIVSD 32->17, SQRtSS 30->14
and SQRTsD 58->18, cond_not_taken_branch_cost. 2->1. Increase
cond_taken_branch_cost 3->4.

From-SVN: r256070

6 years agore PR lto/83452 (FAIL: gfortran.dg/save_6.f90 -O0 (test for excess errors))
Richard Biener [Tue, 2 Jan 2018 08:45:05 +0000 (08:45 +0000)]
re PR lto/83452 (FAIL: gfortran.dg/save_6.f90   -O0  (test for excess errors))

2017-01-02  Richard Biener  <rguenther@suse.de>

PR lto/83452
* simple-object-elf.c (simple_object_elf_copy_lto_debug_section):
Do not use UNDEF locals for removed symbols but instead just
define them in the first prevailing section and with no name.
Use the same gnu_lto_v1 name for all removed globals we promote to
WEAK UNDEFs so hpux can use a stub to provide this symbol.  Clear
sh_info and sh_link in removed sections.

From-SVN: r256069

6 years agoDaily bump.
GCC Administrator [Tue, 2 Jan 2018 00:16:16 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r256068

6 years agore PR fortran/83076 (ICE in gfc_deallocate_scalar_with_status, at fortran/trans.c...
Paul Thomas [Mon, 1 Jan 2018 17:36:41 +0000 (17:36 +0000)]
re PR fortran/83076 (ICE in gfc_deallocate_scalar_with_status, at fortran/trans.c:1598)

2018-01-01  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83076
* resolve.c (resolve_fl_derived0): Add caf_token fields for
allocatable and pointer scalars, when -fcoarray selected.
* trans-types.c (gfc_copy_dt_decls_ifequal): Copy the token
field as well as the backend_decl.
(gfc_get_derived_type): Flag GFC_FCOARRAY_LIB for module
derived types that are not vtypes. Components with caf_token
attribute are pvoid types. For a component requiring it, find
the caf_token field and have the component token field point to
its backend_decl.

PR fortran/83319
*trans-types.c (gfc_get_array_descriptor_base): Add the token
field to the descriptor even when codimen not set.

2018-01-01  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83076
* gfortran.dg/coarray_45.f90 : New test.

PR fortran/83319
* gfortran.dg/coarray_46.f90 : New test.

From-SVN: r256065

6 years ago* es.po: Update.
Joseph Myers [Mon, 1 Jan 2018 00:17:27 +0000 (00:17 +0000)]
* es.po: Update.

From-SVN: r256059

6 years agoDaily bump.
GCC Administrator [Mon, 1 Jan 2018 00:16:12 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r256058

6 years agore PR tree-optimization/83581 (ICE in expand_LOOP_VECTORIZED, at internal-fn.c:2397)
Jakub Jelinek [Sun, 31 Dec 2017 23:53:17 +0000 (00:53 +0100)]
re PR tree-optimization/83581 (ICE in expand_LOOP_VECTORIZED, at internal-fn.c:2397)

PR tree-optimization/83581
* tree-loop-distribution.c (pass_loop_distribution::execute): Return
TODO_cleanup_cfg if any changes have been made.

* gcc.dg/pr83581.c: New test.

From-SVN: r256055

6 years agore PR c/83595 (ICE: in linemap_macro_map_lookup, at libcpp/line-map.c:1008 on invalid...
Jakub Jelinek [Sun, 31 Dec 2017 23:52:41 +0000 (00:52 +0100)]
re PR c/83595 (ICE: in linemap_macro_map_lookup, at libcpp/line-map.c:1008 on invalid code)

PR c/83595
* c-parser.c (c_parser_braced_init, c_parser_initelt,
c_parser_conditional_expression, c_parser_cast_expression,
c_parser_sizeof_expression, c_parser_alignof_expression,
c_parser_postfix_expression, c_parser_omp_declare_reduction,
c_parser_transaction_expression): Use set_error () method instead
of setting value member to error_mark_node.

* gcc.dg/pr83595.c: New test.

From-SVN: r256054

6 years agore PR rtl-optimization/83608 (ICE in convert_move, at expr.c:229 in GIMPLE store...
Jakub Jelinek [Sun, 31 Dec 2017 23:52:01 +0000 (00:52 +0100)]
re PR rtl-optimization/83608 (ICE in convert_move, at expr.c:229 in GIMPLE store merging pass)

PR middle-end/83608
* expr.c (store_expr_with_bounds): Use simplify_gen_subreg instead of
convert_modes if target mode has the right side, but different mode
class.

* g++.dg/opt/pr83608.C: New test.

From-SVN: r256053

6 years agore PR tree-optimization/83609 (ICE in read_complex_part at gcc/expr.c:3202)
Jakub Jelinek [Sun, 31 Dec 2017 23:51:14 +0000 (00:51 +0100)]
re PR tree-optimization/83609 (ICE in read_complex_part at gcc/expr.c:3202)

PR middle-end/83609
* expr.c (expand_assignment): Fix up a typo in simplify_gen_subreg
last argument when extracting from CONCAT.  If either from_real or
from_imag is NULL, use expansion through memory.  If result is not
a CONCAT and simplify_gen_subreg fails, try to simplify_gen_subreg
the parts directly to inner mode, if even that fails, use expansion
through memory.

* gcc.dg/pr83609.c: New test.
* g++.dg/opt/pr83609.C: New test.

From-SVN: r256052

6 years agore PR middle-end/83623 (ICE: in convert_move, at expr.c:248 with -march=knl and 16bit...
Jakub Jelinek [Sun, 31 Dec 2017 23:50:32 +0000 (00:50 +0100)]
re PR middle-end/83623 (ICE: in convert_move, at expr.c:248 with -march=knl and 16bit vector bswap/rotate)

PR middle-end/83623
* expmed.c (expand_shift_1): For 2-byte rotates by BITS_PER_UNIT,
check for bswap in mode rather than HImode and use that in expand_unop
too.

* gcc.dg/pr83623.c: New test.

From-SVN: r256051

6 years ago* gcc.target/i386/i386.exp
Jakub Jelinek [Sun, 31 Dec 2017 23:49:42 +0000 (00:49 +0100)]
* gcc.target/i386/i386.exp
(check_effective_target_avx512vpopcntdqvl): New proc.
* gcc.target/i386/avx512vpopcntdqvl-vpopcntd-1.c: Use
avx512vpopcntdqvl effective target rather than avx512vpopcntdq.
* gcc.target/i386/avx512vpopcntdqvl-vpopcntq-1.c: Likewise.

From-SVN: r256050

6 years agore PR target/83536 (One 'false' too much in r255699 for mingw target (in config/i386...
Jakub Jelinek [Sun, 31 Dec 2017 13:28:00 +0000 (14:28 +0100)]
re PR target/83536 (One 'false' too much in r255699 for mingw target (in config/i386/i386.c))

PR target/83536
* config/i386/i386.c (ix86_attribute_table): Remove excess
initializer for "shared" attribute.

From-SVN: r256049

6 years agoDaily bump.
GCC Administrator [Sun, 31 Dec 2017 00:16:17 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r256048

6 years agoPrune removed funcs from offload table
Tom de Vries [Sat, 30 Dec 2017 17:02:00 +0000 (17:02 +0000)]
Prune removed funcs from offload table

2017-12-30  Tom de Vries  <tom@codesourcery.com>

PR libgomp/83046
* omp-expand.c (expand_omp_target): If in_lto_p, mark offload_funcs with
DECL_PRESERVE_P.
* lto-streamer-out.c (prune_offload_funcs): New function.  Remove
offload_funcs entries that no longer have a corresponding cgraph_node.
Mark the remaining ones as DECL_PRESERVE_P.
(output_lto): Call prune_offload_funcs.

* testsuite/libgomp.oacc-c-c++-common/pr83046.c: New test.
* testsuite/libgomp.c-c++-common/pr83046.c: New test.

From-SVN: r256045

6 years agosse.md (vgf2p8affineinvqb_<mode><mask_name>, [...]): Formatting fixes.
Jakub Jelinek [Sat, 30 Dec 2017 16:01:50 +0000 (17:01 +0100)]
sse.md (vgf2p8affineinvqb_<mode><mask_name>, [...]): Formatting fixes.

* config/i386/sse.md (vgf2p8affineinvqb_<mode><mask_name>,
vgf2p8affineqb_<mode><mask_name>, vgf2p8mulb_<mode><mask_name>,
vpshrd_<mode><mask_name>, vpshld_<mode><mask_name>,
vpshrdv_<mode>, vpshrdv_<mode>_mask, vpshrdv_<mode>_maskz,
vpshrdv_<mode>_maskz_1, vpshldv_<mode>, vpshldv_<mode>_mask,
vpshldv_<mode>_maskz, vpshldv_<mode>_maskz_1, vpdpbusd_<mode>,
vpdpbusd_<mode>_mask, vpdpbusd_<mode>_maskz, vpdpbusd_<mode>_maskz_1,
vpdpbusds_<mode>, vpdpbusds_<mode>_mask, vpdpbusds_<mode>_maskz,
vpdpbusds_<mode>_maskz_1, vpdpwssd_<mode>, vpdpwssd_<mode>_mask,
vpdpwssd_<mode>_maskz, vpdpwssd_<mode>_maskz_1, vpdpwssds_<mode>,
vpdpwssds_<mode>_mask, vpdpwssds_<mode>_maskz,
vpdpwssds_<mode>_maskz_1, vaesdec_<mode>, vaesdeclast_<mode>,
vaesenc_<mode>, vpclmulqdq_<mode>,
avx512vl_vpshufbitqmb<mode><mask_scalar_merge_name>): Formatting fixes.

From-SVN: r256044

6 years agoFix filename in ChangeLog entry for r256042
Tom de Vries [Sat, 30 Dec 2017 10:44:39 +0000 (10:44 +0000)]
Fix filename in ChangeLog entry for r256042

From-SVN: r256043

6 years agoFix 'memory cannot be printed' in c-c++-common/ubsan/object-size-9.c
Tom de Vries [Sat, 30 Dec 2017 10:31:54 +0000 (10:31 +0000)]
Fix 'memory cannot be printed' in c-c++-common/ubsan/object-size-9.c

2017-12-30  Tom de Vries  <tom@codesourcery.com>

PR testsuite/83612
* c-c++-common/ubsan/object-size-9.c (t): Add alignment attribute.

From-SVN: r256042

6 years agoDaily bump.
GCC Administrator [Sat, 30 Dec 2017 00:16:12 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r256039

6 years agore PR libfortran/83613 (Executing gfortran.dg/inquire_internal.f90 hangs on darwin...
Jerry DeLisle [Fri, 29 Dec 2017 22:36:25 +0000 (22:36 +0000)]
re PR libfortran/83613 (Executing gfortran.dg/inquire_internal.f90 hangs on darwin after r255621)

2017-12-29  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/83613
        * io/unit.c (init_units): Don't forget to unlock the unit locks
        after being inserted.

From-SVN: r256035

6 years agore PR fortran/83560 (list-directed formatting of INTEGER is missing plus on output...
Jerry DeLisle [Fri, 29 Dec 2017 19:25:31 +0000 (19:25 +0000)]
re PR fortran/83560 (list-directed formatting of INTEGER is missing plus on output when output open with SIGN='PLUS')

2017-12-29  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

        PR libgfortran/83560
        * io/write.c (write_integer): Modify to use write_decimal.
        For namelist mode, suppress leading blanks and emit them as
        trailing blanks. Change parameter from len to kind for better
        readability. (nml_write_obj): Fix comment style.

From-SVN: r256034

6 years agore PR fortran/83567 (Parametrized derived types: Segmentation fault when assigning...
Paul Thomas [Fri, 29 Dec 2017 14:27:59 +0000 (14:27 +0000)]
re PR fortran/83567 (Parametrized derived types: Segmentation fault when assigning a function return value)

2017-12-28  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83567
* trans-expr.c (gfc_trans_assignment_1): Free parameterized
components of the lhs if dealloc is set.
*trans-decl.c (gfc_trans_deferred_vars): Do not free the
parameterized components of function results on leaving scope.

2017-12-28  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83567
* gfortran.dg/pdt_26.f90 : New test.

From-SVN: r256033

6 years agonamedret2.C (f): Return a value.
Uros Bizjak [Fri, 29 Dec 2017 11:23:14 +0000 (12:23 +0100)]
namedret2.C (f): Return a value.

* g++.old-deja/g++.ext/namedret2.C (f): Return a value.

From-SVN: r256032

6 years agonamedret1.C (f): Return a value.
Uros Bizjak [Fri, 29 Dec 2017 11:21:10 +0000 (12:21 +0100)]
namedret1.C (f): Return a value.

* g++.old-deja/g++.ext/namedret1.C (f): Return a value.

From-SVN: r256031

6 years agoDaily bump.
GCC Administrator [Fri, 29 Dec 2017 00:16:13 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r256030

6 years agobuiltins.def: (_Float<N> and _Float<N>X BUILT_IN_CEIL): Add _Float<N> and _Float...
Michael Meissner [Thu, 28 Dec 2017 21:19:12 +0000 (21:19 +0000)]
builtins.def: (_Float<N> and _Float<N>X BUILT_IN_CEIL): Add _Float<N> and _Float<N>X variants...

[gcc]
2017-12-28  Michael Meissner  <meissner@linux.vnet.ibm.com>

* builtins.def: (_Float<N> and _Float<N>X BUILT_IN_CEIL): Add
_Float<N> and _Float<N>X variants for rounding built-in
functions.
(_Float<N> and _Float<N>X BUILT_IN_FLOOR): Likewise.
(_Float<N> and _Float<N>X BUILT_IN_NEARBYINT): Likewise.
(_Float<N> and _Float<N>X BUILT_IN_RINT): Likewise.
(_Float<N> and _Float<N>X BUILT_IN_ROUND): Likewise.
(_Float<N> and _Float<N>X BUILT_IN_TRUNC): Likewise.
* builtins.c (mathfn_built_in_2): Likewise.
* internal-fn.def (CEIL): Likewise.
(FLOOR): Likewise.
(NEARBYINT): Likewise.
(RINT): Likewise.
(ROUND): Likewise.
(TRUNC): Likewise.
* convert.c (convert_to_integer_1): Likewise.
* fold-const.c (tree_call_nonnegative_warnv_p): Likewise.
(integer_valued_real_call_p): Likewise.
* fold-const-call.c (fold_const_call_ss): Likewise.
* gencfn-macros.c (print_case_cfn): Change CFN and operator
printers to take a const char * suffix instead of a bool.
(print_define_operator_list): Likewise.
(fltall_suffixes): New list of suffixes, that include the
traditional suffixes as well as all of the _Float<N> and
_Float<N>X suffixes.
(main): For _Float<N> and _Float<N>X functions, emit both
<name>_FN and <name>_ALL variants.  The <macro>_FN variant only
has the _Float<N> and _Float<N>X case names or operators.  The
<name>_ALL variant has both the traditional and the
_Float<N>/_Float<N>X case names or operators.
* match.pd (COPYSIGN optimizations): Provide optimizations for
_Float<N> and _Float<N>X types where possible.
(MIN/MAX optimizations): Likewise.
(sqrt optimizations): Likewise.
(rounding optimizations): Likewise.

[gcc/c]
2017-12-28  Michael Meissner  <meissner@linux.vnet.ibm.com>

* c-decl.c (header_for_builtin_fn): Add integer rounding _Float<N>
and _Float<N>X built-in functions.

From-SVN: r256026

6 years ago[rs6000] Use gen_int_mode in ieee_128bit_negative_zero
Richard Sandiford [Thu, 28 Dec 2017 20:42:43 +0000 (20:42 +0000)]
[rs6000] Use gen_int_mode in ieee_128bit_negative_zero

Previously we'd generate a non-canonical zero-extended CONST_INT
instead of a sign-extended one, which tripped the assert for
canonical CONST_INTs after a later patch.

2017-12-28  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* config/powerpcspe/powerpcspe.md (ieee_128bit_negative_zero): Use
gen_int_mode rather than GEN_INT.
* config/rs6000/rs6000.md (ieee_128bit_negative_zero): Likewise.

From-SVN: r256024

6 years agoUse valid_for_const_vector_p instead of CONSTANT_P
Richard Sandiford [Thu, 28 Dec 2017 20:40:20 +0000 (20:40 +0000)]
Use valid_for_const_vector_p instead of CONSTANT_P

This patch makes the VEC_SERIES code use valid_for_const_vector_p
instead of CONSTANT_P, to match what we already do for VEC_DUPLICATE.
This showed up as a failure in gcc.c-torture/execute/pr28982b.c for -m32
on x86_64-linux-gnu after later patches.

2017-12-28  Richard Sandiford  <richard.sandiford@linaro.org>

gcc/
* emit-rtl.c (gen_const_vec_series): Use valid_for_const_vector_p
instead of CONSTANT_P.
(gen_vec_series): Likewise.
* simplify-rtx.c (simplify_binary_operation_1): Likewise.

From-SVN: r256023

6 years agore PR fortran/83548 (Compilation Error using logical function in parameter)
Steven G. Kargl [Thu, 28 Dec 2017 20:19:01 +0000 (20:19 +0000)]
re PR fortran/83548 (Compilation Error using logical function in parameter)

2017-12-28  Steven G. Kargl  <kargl@gcc.gnu.org>

PR Fortran/83548
* match.c (gfc_match_type_spec): Check for LOGICAL conflict in
type-spec versus LOGICAL intrinsic subprogram.

2017-12-28  Steven G. Kargl  <kargl@gcc.gnu.org>

PR Fortran/83548
* gfortran.dg/array_constructor_type_22.f03: New test.

From-SVN: r256022

6 years agoPR fortran/83344 Don't set bogus constant value
Janne Blomqvist [Thu, 28 Dec 2017 18:49:12 +0000 (20:49 +0200)]
PR fortran/83344 Don't set bogus constant value

This patch does not fix PR 83344, but merely fixes an error where we
used to set a constant character length value from a non-constant
expression, and thus set it to some bogus value.

As a result of this, I have commented out part of the associate_22.f90
test which otherwise generates a warning message.

Regtested on x86_64-pc-linux-gnu.

gcc/fortran/ChangeLog:

2017-12-28  Janne Blomqvist  <jb@gcc.gnu.org>

PR fortran/83344
* resolve.c (resolve_assoc_var): Don't set the constant value
unless the target is a constant expression.

gcc/testsuite/ChangeLog:

2017-12-28  Janne Blomqvist  <jb@gcc.gnu.org>

PR fortran/83344
* gfortran.dg/associate_22.f90: Comment out part of test.

From-SVN: r256021

6 years agom68k.md (ashrdi3_const1, [...]): Add CC_STATUS_INIT.
Andreas Schwab [Thu, 28 Dec 2017 16:28:44 +0000 (16:28 +0000)]
m68k.md (ashrdi3_const1, [...]): Add CC_STATUS_INIT.

* config/m68k/m68k.md (ashrdi3_const1, lshrdi3_const1): Add
CC_STATUS_INIT.

From-SVN: r256020

6 years agore PR fortran/83567 (Parametrized derived types: Segmentation fault when assigning...
Paul Thomas [Thu, 28 Dec 2017 13:22:36 +0000 (13:22 +0000)]
re PR fortran/83567 (Parametrized derived types: Segmentation fault when assigning a function return value)

2017-12-28  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83567
* trans-expr.c (gfc_trans_assignment_1): Free parameterized
components of the lhs if dealloc is set.
*trans-decl.c (gfc_trans_deferred_vars): Do not free the
parameterized components of function results on leaving scope.

2017-12-28  Paul Thomas  <pault@gcc.gnu.org>

PR fortran/83567
* gfortran.dg/pdt_26.f90 : New test.

From-SVN: r256019

6 years agoDaily bump.
GCC Administrator [Thu, 28 Dec 2017 00:16:12 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r256017

6 years agoPR libstdc++/83600 fix end iterator for unready std::match_results
Jonathan Wakely [Wed, 27 Dec 2017 22:18:08 +0000 (22:18 +0000)]
PR libstdc++/83600 fix end iterator for unready std::match_results

PR libstdc++/83600
* include/bits/regex.h (match_results::end()): Return valid iterator
when not ready.
* testsuite/28_regex/match_results/ctors/char/default.cc: Check that
unready objects are empty and have equal begin and end iterators.
* testsuite/28_regex/match_results/ctors/wchar_t/default.cc: Likewise.

From-SVN: r256014

6 years agoPR libstdc++/83598 don't modify flags passed to std::basic_regex constructors
Jonathan Wakely [Wed, 27 Dec 2017 22:18:02 +0000 (22:18 +0000)]
PR libstdc++/83598 don't modify flags passed to std::basic_regex constructors

PR libstdc++/83598
* include/bits/regex.h (basic_regex): Don't modify flags passed to
constructors.
* testsuite/28_regex/basic_regex/ctors/83598.cc: New test.

From-SVN: r256013

6 years agoPR libstdc++/83538 fix std::match_results<T>::reference (LWG 2306)
Jonathan Wakely [Wed, 27 Dec 2017 19:43:33 +0000 (19:43 +0000)]
PR libstdc++/83538 fix std::match_results<T>::reference (LWG 2306)

PR libstdc++/83538
* doc/xml/manual/intro.xml: Document LWG 2306 change.
* include/bits/regex.h (match_results::reference): Change to
non-const reference.
* testsuite/28_regex/match_results/typedefs.cc: Check types are
correct.

From-SVN: r256012

6 years ago2017_12_27 Louis Krupp <louis.krupp@zoho.com>
Louis Krupp [Wed, 27 Dec 2017 19:20:12 +0000 (19:20 +0000)]
2017_12_27  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/83092
* expr.c (gfc_apply_init): Check that typespec has character type
before using character length field.

2017_12_27  Louis Krupp  <louis.krupp@zoho.com>

PR fortran/83092
* gfortran.dg/init_char_with_nonchar_ctr.f90: New test.

From-SVN: r256011

6 years agoaarch64-simd.md (aarch64_ld1x2<VQ:mode>): New.
Kugan Vivekanandarajah [Wed, 27 Dec 2017 11:47:45 +0000 (11:47 +0000)]
aarch64-simd.md (aarch64_ld1x2<VQ:mode>): New.

gcc/ChangeLog:

2017-12-27  Kugan Vivekanandarajah  <kuganv@linaro.org>

* config/aarch64/aarch64-simd.md (aarch64_ld1x2<VQ:mode>): New.
(aarch64_ld1x2<VDC:mode>): Likewise.
(aarch64_simd_ld1<mode>_x2): Likewise.
(aarch64_simd_ld1<mode>_x2): Likewise.
* config/aarch64/arm_neon.h (vld1_u8_x2): New.
(vld1_s8_x2): Likewise.
(vld1_u16_x2): Likewise.
(vld1_s16_x2): Likewise.
(vld1_u32_x2): Likewise.
(vld1_s32_x2): Likewise.
(vld1_u64_x2): Likewise.
(vld1_s64_x2): Likewise.
(vld1_f16_x2): Likewise.
(vld1_f32_x2): Likewise.
(vld1_f64_x2): Likewise.
(vld1_p8_x2): Likewise.
(vld1_p16_x2): Likewise.
(vld1_p64_x2): Likewise.
(vld1q_u8_x2): Likewise.
(vld1q_s8_x2): Likewise.
(vld1q_u16_x2): Likewise.
(vld1q_s16_x2): Likewise.
(vld1q_u32_x2): Likewise.
(vld1q_s32_x2): Likewise.
(vld1q_u64_x2): Likewise.
(vld1q_s64_x2): Likewise.
(vld1q_f16_x2): Likewise.
(vld1q_f32_x2): Likewise.
(vld1q_f64_x2): Likewise.
(vld1q_p8_x2): Likewise.
(vld1q_p16_x2): Likewise.
(vld1q_p64_x2): Likewise.

gcc/testsuite/ChangeLog:

2017-12-27  Kugan Vivekanandarajah  <kuganv@linaro.org>

* gcc.target/aarch64/advsimd-intrinsics/vld1x2.c: New test.

From-SVN: r256010

6 years agoAssign result of get_string_lenth to a SSA_NAME (PR tree-optimization/83552).
Martin Liska [Wed, 27 Dec 2017 09:30:14 +0000 (10:30 +0100)]
Assign result of get_string_lenth to a SSA_NAME (PR tree-optimization/83552).

2017-12-27  Martin Liska  <mliska@suse.cz>

PR tree-optimization/83552
* tree-ssa-strlen.c (fold_strstr_to_strncmp): Assign result
of get_string_lenth to a SSA_NAME if not a GIMPLE value.
2017-12-27  Martin Liska  <mliska@suse.cz>

PR tree-optimization/83552
* gcc.dg/pr83552.c: New test.

From-SVN: r256009

6 years agoWorkaround PR83046 in gang-static-2.c
Tom de Vries [Wed, 27 Dec 2017 07:50:04 +0000 (07:50 +0000)]
Workaround PR83046 in gang-static-2.c

2017-12-27  Tom de Vries  <tom@codesourcery.com>

PR c++/83046
* testsuite/libgomp.oacc-c-c++-common/gang-static-2.c (test_static)
(test_nonstatic): Fix return type to workaround PR83046.

From-SVN: r256008

6 years agoDisable -gstatement-frontiers for nvptx
Tom de Vries [Wed, 27 Dec 2017 07:49:51 +0000 (07:49 +0000)]
Disable -gstatement-frontiers for nvptx

2017-12-27  Tom de Vries  <tom@codesourcery.com>

* config/nvptx/nvptx.c (nvptx_option_override): Disable
-gstatement-frontiers.

From-SVN: r256007

6 years agoDaily bump.
GCC Administrator [Wed, 27 Dec 2017 00:16:12 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r256006

6 years agore PR fortran/83540 (Invalid code with MATMUL, -fno-realloc-lhs -ffrontend-optimize)
Thomas Koenig [Tue, 26 Dec 2017 23:29:20 +0000 (23:29 +0000)]
re PR fortran/83540 (Invalid code with MATMUL, -fno-realloc-lhs -ffrontend-optimize)

2017-12-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/83540
* frontend-passes.c (create_var): If an array to be created
has unknown size and -fno-realloc-lhs is in effect,
return NULL.

2017-12-26  Thomas Koenig  <tkoenig@gcc.gnu.org>

PR fortran/83540
* gfortran.dg/inline_matmul_20.f90: New test.

From-SVN: r256003

6 years agoUse relative line number in unroll-5.c
Tom de Vries [Tue, 26 Dec 2017 16:56:22 +0000 (16:56 +0000)]
Use relative line number in unroll-5.c

2017-12-26  Tom de Vries  <tom@codesourcery.com>

* c-c++-common/unroll-5.c: Use relative line number.

From-SVN: r256002

6 years agosel-sched: fix zero-usefulness case in sel_rank_for_schedule (PR 83513)
Alexander Monakov [Tue, 26 Dec 2017 14:34:33 +0000 (17:34 +0300)]
sel-sched: fix zero-usefulness case in sel_rank_for_schedule (PR 83513)

PR rtl-optimization/83513
* sel-sched.c (sel_rank_for_schedule): Order by non-zero usefulness
before priority comparison.

From-SVN: r256001

6 years agoDaily bump.
GCC Administrator [Tue, 26 Dec 2017 00:16:15 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r256000

6 years agore PR target/83488 (ICE on a CET test-case)
Jakub Jelinek [Mon, 25 Dec 2017 11:59:17 +0000 (12:59 +0100)]
re PR target/83488 (ICE on a CET test-case)

PR target/83488
* config/i386/i386.opt (-mavx512vpopcntdq, -mmavx512bitalg): Move from
ix86_isa_flags2 to ix86_isa_flags.
* config/i386/i386-c.c (ix86_target_macros_internal): Test
OPTION_MASK_ISA_AVX512BITALG and OPTION_MASK_ISA_AVX512VPOPCNTDQ in
isa_flags rather than isa_flags2.
* config/i386/i386.c (ix86_target_string): Move -mavx512vpopcntdq
and -mavx512bitalg from isa2_opts to isa_opts.
(ix86_option_override_internal): Test OPTION_MASK_ISA_AVX512VPOPCNTDQ
in x_ix86_isa_flags_explicit rather than x_ix86_isa_flags2_explicit
and set it in x_ix86_isa_flags rather than x_ix86_isa_flags2.
Formatting fixes.
(def_builtin): Treat OPTION_MASK_ISA_AVX512BW or
OPTION_MASK_ISA_AVX512F ored with another option similarly to
OPTION_MASK_ISA_AVX512VL.  Even for OPTION_MASK_ISA_AVX512VL don't
clear it if mask is just OPTION_MASK_ISA_AVX512VL itself.
(ix86_expand_builtin): Don't handle OPTION_MASK_ISA_GFNI and
OPTION_MASK_ISA_VPCLMULQDQ specially, instead handle
OPTION_MASK_ISA_AVX512BW and OPTION_MASK_ISA_AVX512F that way.
* config/i386/i386-builtin.def: Move AVX512VPOPCNTDQ and AVX512BITALG
builtins from bdesc_args2 to bdesc_args section.
(__builtin_ia32_compressstoreuqi512_mask,
__builtin_ia32_compressstoreuhi512_mask,
__builtin_ia32_compressstoreuqi256_mask,
__builtin_ia32_expandloadqi512_mask,
__builtin_ia32_expandloadqi512_maskz,
__builtin_ia32_expandloadhi512_mask,
__builtin_ia32_expandloadhi512_maskz,
__builtin_ia32_compressqi512_mask, __builtin_ia32_compresshi512_mask,
__builtin_ia32_compressqi256_mask, __builtin_ia32_expandqi512_mask,
__builtin_ia32_expandqi512_maskz, __builtin_ia32_expandhi512_mask,
__builtin_ia32_expandhi512_maskz, __builtin_ia32_expandqi256_mask,
__builtin_ia32_expandqi256_maskz, __builtin_ia32_vpshrd_v32hi_mask,
__builtin_ia32_vpshld_v32hi_mask, __builtin_ia32_vpshrdv_v32hi_mask,
__builtin_ia32_vpshrdv_v32hi_maskz, __builtin_ia32_vpshldv_v32hi_mask,
__builtin_ia32_vpshldv_v32hi_maskz,
__builtin_ia32_vpopcountb_v64qi_mask,
__builtin_ia32_vpopcountw_v32hi_mask,
__builtin_ia32_vpshufbitqmb512_mask,
__builtin_ia32_vpshufbitqmb256_mask): Add
" | OPTION_MASK_ISA_AVX512BW".
(__builtin_ia32_expandloadqi256_mask,
__builtin_ia32_expandloadqi256_maskz,
__builtin_ia32_vpopcountb_v32qi_mask): Add
" | OPTION_MASK_ISA_AVX512VL | OPTION_MASK_ISA_AVX512BW".
(__builtin_ia32_expandloadhi256_mask,
__builtin_ia32_expandloadhi256_maskz,
__builtin_ia32_expandloadqi128_mask,
__builtin_ia32_expandloadqi128_maskz,
__builtin_ia32_expandloadhi128_mask,
__builtin_ia32_expandloadhi128_maskz,
__builtin_ia32_vpshrd_v16hi, __builtin_ia32_vpshrd_v16hi_mask,
__builtin_ia32_vpshrd_v8hi, __builtin_ia32_vpshrd_v8hi_mask,
__builtin_ia32_vpshrd_v8si, __builtin_ia32_vpshrd_v8si_mask,
__builtin_ia32_vpshrd_v4si, __builtin_ia32_vpshrd_v4si_mask,
__builtin_ia32_vpshrd_v4di, __builtin_ia32_vpshrd_v4di_mask,
__builtin_ia32_vpshrd_v2di, __builtin_ia32_vpshrd_v2di_mask,
__builtin_ia32_vpshld_v16hi, __builtin_ia32_vpshld_v16hi_mask,
__builtin_ia32_vpshld_v8hi, __builtin_ia32_vpshld_v8hi_mask,
__builtin_ia32_vpshld_v8si, __builtin_ia32_vpshld_v8si_mask,
__builtin_ia32_vpshld_v4si, __builtin_ia32_vpshld_v4si_mask,
__builtin_ia32_vpshld_v4di, __builtin_ia32_vpshld_v4di_mask,
__builtin_ia32_vpshld_v2di, __builtin_ia32_vpshld_v2di_mask,
__builtin_ia32_vpshrdv_v16hi, __builtin_ia32_vpshrdv_v16hi_mask,
__builtin_ia32_vpshrdv_v16hi_maskz, __builtin_ia32_vpshrdv_v8hi,
__builtin_ia32_vpshrdv_v8hi_mask, __builtin_ia32_vpshrdv_v8hi_maskz,
__builtin_ia32_vpshrdv_v8si, __builtin_ia32_vpshrdv_v8si_mask,
__builtin_ia32_vpshrdv_v8si_maskz, __builtin_ia32_vpshrdv_v4si,
__builtin_ia32_vpshrdv_v4si_mask, __builtin_ia32_vpshrdv_v4si_maskz,
__builtin_ia32_vpshrdv_v4di, __builtin_ia32_vpshrdv_v4di_mask,
__builtin_ia32_vpshrdv_v4di_maskz, __builtin_ia32_vpshrdv_v2di,
__builtin_ia32_vpshrdv_v2di_mask, __builtin_ia32_vpshrdv_v2di_maskz,
__builtin_ia32_vpshldv_v16hi, __builtin_ia32_vpshldv_v16hi_mask,
__builtin_ia32_vpshldv_v16hi_maskz, __builtin_ia32_vpshldv_v8hi,
__builtin_ia32_vpshldv_v8hi_mask, __builtin_ia32_vpshldv_v8hi_maskz,
__builtin_ia32_vpshldv_v8si, __builtin_ia32_vpshldv_v8si_mask,
__builtin_ia32_vpshldv_v8si_maskz, __builtin_ia32_vpshldv_v4si,
__builtin_ia32_vpshldv_v4si_mask, __builtin_ia32_vpshldv_v4si_maskz,
__builtin_ia32_vpshldv_v4di, __builtin_ia32_vpshldv_v4di_mask,
__builtin_ia32_vpshldv_v4di_maskz, __builtin_ia32_vpshldv_v2di,
__builtin_ia32_vpshldv_v2di_mask, __builtin_ia32_vpshldv_v2di_maskz,
__builtin_ia32_vpopcountb_v32qi, __builtin_ia32_vpopcountb_v16qi,
__builtin_ia32_vpopcountb_v16qi_mask, __builtin_ia32_vpopcountw_v16hi,
__builtin_ia32_vpopcountw_v16hi_mask, __builtin_ia32_vpopcountw_v8hi,
__builtin_ia32_vpopcountw_v8hi_mask): Add
" | OPTION_MASK_ISA_AVX512VL".
* config/i386/avx512vbmi2intrin.h (_mm512_shrdi_epi16,
_mm512_shrdi_epi32, _mm512_mask_shrdi_epi32, _mm512_maskz_shrdi_epi32,
_mm512_shrdi_epi64, _mm512_mask_shrdi_epi64, _mm512_maskz_shrdi_epi64,
_mm512_shldi_epi16, _mm512_shldi_epi32, _mm512_mask_shldi_epi32,
_mm512_maskz_shldi_epi32, _mm512_shldi_epi64, _mm512_mask_shldi_epi64,
_mm512_maskz_shldi_epi64, _mm512_shrdv_epi16, _mm512_shrdv_epi32,
_mm512_mask_shrdv_epi32, _mm512_maskz_shrdv_epi32, _mm512_shrdv_epi64,
_mm512_mask_shrdv_epi64, _mm512_maskz_shrdv_epi64, _mm512_shldv_epi16,
_mm512_shldv_epi32, _mm512_mask_shldv_epi32, _mm512_maskz_shldv_epi32,
_mm512_shldv_epi64, _mm512_mask_shldv_epi64,
_mm512_maskz_shldv_epi64): Don't require avx512bw for these intrinsics.
* config/i386/avx512bitalgintrin.h (_mm_bitshuffle_epi64_mask,
_mm_mask_bitshuffle_epi64_mask): Likewise.
* common/config/i386/i386-common.c
(OPTION_MASK_ISA_AVX512VPOPCNTDQ_SET,
OPTION_MASK_ISA_AVX512BITALG_SET): Or in OPTION_MASK_ISA_AVX512F_SET.
(OPTION_MASK_ISA_AVX512F_UNSET): Or in
OPTION_MASK_ISA_AVX512VPOPCNTDQ_UNSET and
OPTION_MASK_ISA_AVX512BITALG_UNSET.
(OPTION_MASK_ISA2_AVX512F_UNSET,
OPTION_MASK_ISA2_GENERAL_REGS_ONLY_UNSET): Define.
(ix86_handle_option): For -mno-general-regs-only, clear from
ix86_isa_flags2 OPTION_MASK_ISA2_GENERAL_REGS_ONLY_UNSET rather than
just OPTION_MASK_ISA_MPX.  For -mno-sse{,2,3,4,4.1,4.2,avx,avx2} and
-mno-ssse3 clear OPTION_MASK_ISA2_AVX512F_UNSET bits from
ix86_isa_flags2.  For -mno-avx512f likewise, instead of masking
individually listed ISAs.  For -m{,no-}avx512{vpopcntdq,bitalg} adjust
for moving from ix86_isa_flags2 to ix86_isa_flags.

From-SVN: r255997

6 years agoDaily bump.
GCC Administrator [Mon, 25 Dec 2017 00:16:17 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r255996

6 years agore PR libstdc++/83237 (Values returned by std::poisson_distribution are not distribut...
Michele Pezzutti [Sun, 24 Dec 2017 22:08:52 +0000 (23:08 +0100)]
re PR libstdc++/83237 (Values returned by std::poisson_distribution are not distributed correctly)

2017-12-24  Michele Pezzutti <mpezz@tiscali.it>

PR libstdc++/83237
* include/bits/random.tcc (poisson_distribution<>::operator()):
Fix __x = 1 case - see updated Errata of Devroye's treatise.
* testsuite/26_numerics/random/poisson_distribution/operators/
values.cc: Add test.
* testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
line number.

From-SVN: r255993

6 years agoPR libstdc++/83450 avoid -Wreturn-type warning in test
Jonathan Wakely [Sun, 24 Dec 2017 09:17:38 +0000 (09:17 +0000)]
PR libstdc++/83450 avoid -Wreturn-type warning in test

PR libstdc++/83450
* testsuite/21_strings/basic_string/pthread18185.cc: Add return
statement.

From-SVN: r255992

6 years agoDaily bump.
GCC Administrator [Sun, 24 Dec 2017 00:16:16 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r255991

6 years agore PR c++/83553 (compiler removes body of the for-loop, although there is a case...
Jakub Jelinek [Sat, 23 Dec 2017 08:40:19 +0000 (09:40 +0100)]
re PR c++/83553 (compiler removes body of the for-loop, although there is a case label inside)

PR c++/83553
* fold-const.c (struct contains_label_data): New type.
(contains_label_1): Return non-NULL even for CASE_LABEL_EXPR, unless
inside of a SWITCH_BODY seen during the walk.
(contains_label_p): Use walk_tree instead of
walk_tree_without_duplicates, prepare data for contains_label_1 and
provide own pset.

* c-c++-common/torture/pr83553.c: New test.

From-SVN: r255987

6 years agoDaily bump.
GCC Administrator [Sat, 23 Dec 2017 00:16:12 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r255986

6 years agore PR debug/83550 (Bad location of DW_TAG_structure_type with forward declaration...
Jakub Jelinek [Fri, 22 Dec 2017 18:04:18 +0000 (19:04 +0100)]
re PR debug/83550 (Bad location of DW_TAG_structure_type with forward declaration since r224161)

PR debug/83550
* c-decl.c (finish_struct): Set DECL_SOURCE_LOCATION on
TYPE_STUB_DECL and call rest_of_type_compilation before processing
incomplete vars rather than after it.

* c-c++-common/dwarf2/pr83550.c: New test.

From-SVN: r255981

6 years agore PR debug/83547 ((statement-frontiers) error: void value not ignored as it ought...
Jakub Jelinek [Fri, 22 Dec 2017 18:01:58 +0000 (19:01 +0100)]
re PR debug/83547 ((statement-frontiers) error: void value not ignored as it ought to be)

PR debug/83547
* tree-iterator.c (alloc_stmt_list): Start with cleared
TREE_SIDE_EFFECTS regardless whether a new STATEMENT_LIST is allocated
or old one reused.
c/
* c-typeck.c (c_finish_stmt_expr): Ignore !TREE_SIDE_EFFECTS as
indicator of ({ }), instead skip all trailing DEBUG_BEGIN_STMTs first,
and consider empty ones if there are no other stmts.  For
-Wunused-value walk all statements before the one only followed by
DEBUG_BEGIN_STMTs.
testsuite/
* gcc.c-torture/compile/pr83547.c: New test.

From-SVN: r255980

6 years agore PR target/83488 (ICE on a CET test-case)
Jakub Jelinek [Fri, 22 Dec 2017 18:00:41 +0000 (19:00 +0100)]
re PR target/83488 (ICE on a CET test-case)

PR target/83488
* config/i386/avx512vnniintrin.h: Don't check for __AVX512F__ nor
enable avx512f explicitly in #pragma GCC target.
* config/i386/i386-builtin.def (__builtin_ia32_vpdpbusd_v8si,
__builtin_ia32_vpdpbusd_v8si_mask, __builtin_ia32_vpdpbusd_v8si_maskz,
__builtin_ia32_vpdpbusd_v4si, __builtin_ia32_vpdpbusd_v4si_mask,
__builtin_ia32_vpdpbusd_v4si_maskz, __builtin_ia32_vpdpbusds_v8si,
__builtin_ia32_vpdpbusds_v8si_mask,
__builtin_ia32_vpdpbusds_v8si_maskz, __builtin_ia32_vpdpbusds_v4si,
__builtin_ia32_vpdpbusds_v4si_mask,
__builtin_ia32_vpdpbusds_v4si_maskz, __builtin_ia32_vpdpwssd_v8si,
__builtin_ia32_vpdpwssd_v8si_mask, __builtin_ia32_vpdpwssd_v8si_maskz,
__builtin_ia32_vpdpwssd_v4si, __builtin_ia32_vpdpwssd_v4si_mask,
__builtin_ia32_vpdpwssd_v4si_maskz, __builtin_ia32_vpdpwssds_v8si,
__builtin_ia32_vpdpwssds_v8si_mask,
__builtin_ia32_vpdpwssds_v8si_maskz, __builtin_ia32_vpdpwssds_v4si,
__builtin_ia32_vpdpwssds_v4si_mask,
__builtin_ia32_vpdpwssds_v4si_maskz): Use
OPTION_MASK_ISA_AVX512VNNI | OPTION_MASK_ISA_AVX512VL instead of
just OPTION_MASK_ISA_AVX512VNNI.

* gcc.target/i386/pr83488-2.c: New test.
* gcc.target/i386/pr83488-3.c: New test.

From-SVN: r255979

6 years ago[PR 82027] Also stream opt_info of former_clones
Martin Jambor [Fri, 22 Dec 2017 17:03:16 +0000 (18:03 +0100)]
[PR 82027] Also stream opt_info of former_clones

2017-12-22  Martin Jambor  <mjambor@suse.cz>

PR lto/82027
* lto-cgraph.c (output_cgraph_opt_summary_p): Also check former
clones.

testsuite/
* g++.dg/lto/pr82027_0.C: New test.

From-SVN: r255978

6 years agocompiler: do not propagate address-taken of a slice element to the slice
Ian Lance Taylor [Fri, 22 Dec 2017 16:43:28 +0000 (16:43 +0000)]
compiler: do not propagate address-taken of a slice element to the slice

    Array_index_expression may be used for indexing/slicing array or
    slice. If a slice element is address taken, the slice itself is
    not necessarily address taken. Only propagate address-taken for
    arrays.

    Reviewed-on: https://go-review.googlesource.com/83877

From-SVN: r255977

6 years agocompiler: bring escape analysis mostly in line with gc compiler
Ian Lance Taylor [Fri, 22 Dec 2017 15:55:10 +0000 (15:55 +0000)]
compiler: bring escape analysis mostly in line with gc compiler

    This CL ports the latest (~Go 1.10) escape analysis code from
    the gc compiler. Changes include:

    - In the gc compiler, the variable expression is represented
      with the variable node itself (ONAME). It is the same node
      used in the AST for multiple var expressions for the same
      variable. In our case, the var expressions nodes are distinct
      nodes. We need to propagate the escape state from/to the
      underlying variable in getter and setter. We already do it in
      the setter. Do it in the getter as well.

    - At the point of escape analysis, some AST constructs have not
      been lowered to runtime calls, for example, map literal
      construction and some builtin calls. Change the analysis to
      work on the non-lowered AST constructs instead of call
      expressions for them. For this to work, the analysis needs to
      look into Builtin_call_expression. Move its class definition
      from expressions.cc to expressions.h, and add necessary
      accessors. Also fix bugs in other runtime call handlings
      (selectsend, ifaceX2Y2, etc.).

    - Handle closures properly. The analysis tracks the function
      reference expression, and the escape state is propagated to
      the underlying heap expression for get_backend to do stack
      allocation for non-escaping closures.

    - Fix add_dereference. Before, this was doing expr->deref(),
      which undoes an indirection instead of add one. In the gc
      compiler, it adds a level of indirection, which is modeled as
      an OIND node regardless of the type of the expression. We
      can't do this for non-pointer typed expression, otherwise it
      will result in a type error. Instead, we model it with a
      special flavor of Node, "indirect". The flood phase handles
      this by incrementing its level.

    - Slicing of an array was not handled correctly. The gc compiler
      has an implicit (compiler inserted) OADDR node for the array,
      so the analysis is actually performed on the address of the
      array. We don't have this implicit address-of expression in
      the AST. Instead, we model this by adding an implicit child to
      the Node of the Array_index_expression representing slicing of
      an array.

    - Array_index_expression may represent indexing or slicing. The
      code distinguishes them by looking at whether the type of the
      expression is a slice. This does not work if the slice element
      is a slice. Instead, check whether its end() is NULL.

    - Temporary references was handled only in a limited case, as
      part of address-of expression. This CL handles it in general.
      The analysis uses the Temporary_statement as the point of
      tracking, and forwards Temporary_reference_expression to the
      underlying statement when needed.

    - Handle call return value flows, escpecially multiple return
      values. This includes porting part of CL 8202, CL 20102, and
      other fixes.

    - Support go:noescape pragma.

    - Add special handling for self assignment like
      b.buf = b.buf[m:n]. (CL 3162)

    - Remove ESCAPE_SCOPE, which was treated essentially the same as
      ESCAPE_HEAP, and was removed from the gc compiler. (CL 32130)

    - Run flood phase until fix point. (CL 30693)

    - Unnamed parameters do not escape. (CL 38600)

    - Various small bug fixes and improvements.

    "make check-go" passes except the one test in math/big, when the
    escape analysis is on. The escape analysis is still not run by
    default.

    Reviewed-on: https://go-review.googlesource.com/83876

From-SVN: r255976

6 years agoEnable AVX512BITALG
Julia Koval [Fri, 22 Dec 2017 12:37:16 +0000 (13:37 +0100)]
Enable AVX512BITALG

gcc/
* common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512BITALG_SET,
OPTION_MASK_ISA_AVX512BITALG_UNSET): New.
(ix86_handle_option): Handle -mavx512bitalg, fix 4VNNIW formatting.
* config.gcc: Add avx512vpopcntdqvlintrin.h and avx512bitalgintrin.h.
* config/i386/avx512bitalgintrin.h (_mm512_popcnt_epi8, _mm512_popcnt_epi16,
_mm512_mask_popcnt_epi8, _mm512_maskz_popcnt_epi8, _mm512_mask_popcnt_epi16,
_mm512_maskz_popcnt_epi16, _mm512_bitshuffle_epi64_mask, _mm256_popcnt_epi8,
_mm512_mask_bitshuffle_epi64_mask, _mm256_mask_popcnt_epi8, _mm_popcnt_epi8,
_mm256_maskz_popcnt_epi8, _mm_bitshuffle_epi64_mask, _mm256_popcnt_epi16,
_mm_mask_bitshuffle_epi64_mask, _mm256_bitshuffle_epi64_mask,
_mm256_mask_bitshuffle_epi64_mask, _mm_popcnt_epi16, _mm_maskz_popcnt_epi8,
_mm256_mask_popcnt_epi16, _mm256_maskz_popcnt_epi16, _mm_mask_popcnt_epi8,
_mm_mask_popcnt_epi16, _mm_maskz_popcnt_epi16): New intrinsics.
* config/i386/avx512vpopcntdqvlintrin.h (_mm_popcnt_epi32, _mm_popcnt_epi64,
_mm_mask_popcnt_epi32, _mm_maskz_popcnt_epi32, _mm256_popcnt_epi32,
_mm256_mask_popcnt_epi32, _mm256_maskz_popcnt_epi32, _mm_mask_popcnt_epi64,
_mm_maskz_popcnt_epi64, _mm256_popcnt_epi64, _mm256_mask_popcnt_epi64,
_mm256_maskz_popcnt_epi64): New intrinsics.
* config/i386/cpuid.h (bit_AVX512BITALG): New bit.
* config/i386/driver-i386.c (host_detect_local_cpu): Detect -mavx512bitalg.
* config/i386/i386-builtin-types.def (V64QI_FTYPE_V64QI, V64QI_FTYPE_V64QI,
V4DI_FTYPE_V4DI, UHI_FTYPE_V2DI_V2DI_UHI, USI_FTYPE_V4DI_V4DI_USI,
V4SI_FTYPE_V4SI_V4SI_UHI, V8SI_FTYPE_V8SI_V8SI_UHI): New types.
* config/i386/i386-builtin.def (__builtin_ia32_vpopcountq_v4di,
__builtin_ia32_vpopcountq_v4di_mask, __builtin_ia32_vpopcountq_v2di,
__builtin_ia32_vpopcountq_v2di_mask, __builtin_ia32_vpopcountd_v4si,
__builtin_ia32_vpopcountd_v4si_mask, __builtin_ia32_vpopcountd_v8si,
__builtin_ia32_vpopcountd_v8si_mask, __builtin_ia32_vpopcountb_v64qi,
__builtin_ia32_vpopcountb_v64qi_mask, __builtin_ia32_vpopcountb_v32qi,
__builtin_ia32_vpopcountb_v32qi_mask, __builtin_ia32_vpopcountb_v16qi,
__builtin_ia32_vpopcountb_v16qi_mask, __builtin_ia32_vpopcountw_v32hi,
__builtin_ia32_vpopcountw_v32hi_mask, __builtin_ia32_vpopcountw_v16hi,
__builtin_ia32_vpopcountw_v16hi_mask, __builtin_ia32_vpopcountw_v8hi,
__builtin_ia32_vpopcountw_v8hi_mask, __builtin_ia32_vpshufbitqmb128_mask,
__builtin_ia32_vpshufbitqmb256_mask,
__builtin_ia32_vpshufbitqmb512_mask): New builtins.
* config/i386/i386-c.c (__AVX512BITALG__): New.
* config/i386/i386.c (isa2_opts): Add -mavx512bitalg.
(ix86_valid_target_attribute_inner_p): Ditto.
(ix86_expand_args_builtin): Handle new types.
* config/i386/i386.h (TARGET_AVX512BITALG, TARGET_AVX512BITALG_P): New.
* config/i386/i386.opt: Add -mavx512bitalg.
* config/i386/immintrin.h: Add avx512vpopcntdqvlintrin.h and
avx512bitalgintrin.h.
* config/i386/sse.md (VI48_AVX512VLBW): New iterator.
(vpopcount<mode><mask_name>): Add more types.
(avx512vl_vpshufbitqmb<mode><mask_scalar_merge_name>): New.
* doc/invoke.texi: Add -mavx512bitalg and -mavx512vpopcntdq.
gcc/testsuite/
* g++.dg/other/i386-2.C: Add new options.
* g++.dg/other/i386-3.C: Ditto.
* gcc.target/i386/sse-12.c: Ditto.
* gcc.target/i386/sse-13.c: Ditto.
* gcc.target/i386/sse-22.c: Ditto.
* gcc.target/i386/sse-23.c: Ditto.
* gcc.target/i386/avx512-check.h: Handle bit_AVX512BITALG.
* gcc.target/i386/avx512bitalg-vpopcntb-1.c: New.
* gcc.target/i386/avx512bitalg-vpopcntb.c: Ditto.
* gcc.target/i386/avx512bitalg-vpopcntbvl.c: Ditto.
* gcc.target/i386/avx512bitalg-vpopcntw-1.c: Ditto.
* gcc.target/i386/avx512bitalg-vpopcntw.c: Ditto.
* gcc.target/i386/avx512bitalg-vpopcntwvl.c: Ditto.
* gcc.target/i386/avx512bitalg-vpshufbitqmb-1.c: Ditto.
* gcc.target/i386/avx512bitalg-vpshufbitqmb.c: Ditto.
* gcc.target/i386/avx512bitalgvl-vpopcntb-1.c: Ditto.
* gcc.target/i386/avx512bitalgvl-vpopcntw-1.c: Ditto.
* gcc.target/i386/avx512bitalgvl-vpshufbitqmb-1.c: Ditto.
* gcc.target/i386/avx512vpopcntdqvl-vpopcntd-1.c: Ditto.
* gcc.target/i386/avx512vpopcntdqvl-vpopcntq-1.c: Ditto.
* gcc.target/i386/i386.exp (check_effective_target_avx512bitalg): New.
* gcc.target/i386/avx512vpopcntdq-vpopcntd-1.c: Add more types.
* gcc.target/i386/avx512vpopcntdq-vpopcntd.c: Handle new intrinsics.
* gcc.target/i386/avx512vpopcntdq-vpopcntq-1.c: Ditto.
* gcc.target/i386/avx512vpopcntdq-vpopcntq.c: Ditto.

Co-Authored-By: Sebastian Peryt <sebastian.peryt@intel.com>
From-SVN: r255975

6 years agoThis is a follow up patch for pr83488 to fix an error in setting...
Igor Tsimbalist [Fri, 22 Dec 2017 11:41:02 +0000 (12:41 +0100)]
This is a follow up patch for pr83488 to fix an error in setting...

This is a follow up patch for pr83488 to fix an error in setting
OPTION_MASK_ISA_AVX512VNNI_SET and OPTION_MASK_ISA_AVX512F_SET bits.
There were both set in ix86_isa_flags2 while being defined in
different ISA sets. Additionally move OPTION_MASK_ISA_AVX512VNNI_SET
to ix86_isa_flags as it can be used with OPTION_MASK_ISA_AVX512VL_SET.

gcc/
* common/config/i386/i386-common.c (OPTION_MASK_ISA_AVX512VNNI_SET):
Or in OPTION_MASK_ISA_AVX512F_SET.
(OPTION_MASK_ISA_AVX512F_UNSET): Or in
OPTION_MASK_ISA_AVX512VNNI_UNSET.
(ix86_handle_option): Adjust for
OPTION_MASK_ISA_AVX512VNNI_*SET being in ix86_isa_flags.
* config/i386/i386-builtin.def: Move VNNI builtins from ARGS2
section to ARGS.
* config/i386/i386-c.c: Check for OPTION_MASK_ISA_AVX512VNNI in
isa_flag instead of isa_flag2.
* config/i386/i386.c (ix86_target_string): Move -mavx512vnni from
isa_opts2 to isa_opts.
* config/i386/i386.opt (mavx512vnni): Move from ix86_isa_flags2
to ix86_isa_flags.

From-SVN: r255974

6 years agoextend.texi (Loop-Specific Pragmas): Document pragma GCC unroll.
Eric Botcazou [Fri, 22 Dec 2017 10:22:15 +0000 (10:22 +0000)]
extend.texi (Loop-Specific Pragmas): Document pragma GCC unroll.

* doc/extend.texi (Loop-Specific Pragmas): Document pragma GCC unroll.
c-family/
* c-pragma.c (init_pragma): Register pragma GCC unroll.
* c-pragma.h (enum pragma_kind): Add PRAGMA_UNROLL.
c/
* c-parser.c (c_parser_while_statement): Add unroll parameter and
build ANNOTATE_EXPR if present.  Add 3rd operand to ANNOTATE_EXPR.
(c_parser_do_statement): Likewise.
(c_parser_for_statement): Likewise.
(c_parser_statement_after_labels): Adjust calls to above.
(c_parse_pragma_ivdep): New static function.
(c_parser_pragma_unroll): Likewise.
(c_parser_pragma) <PRAGMA_IVDEP>: Add support for pragma Unroll.
<PRAGMA_UNROLL>: New case.
cp/
* constexpr.c (cxx_eval_constant_expression) <ANNOTATE_EXPR>: Remove
assertion on 2nd operand.
(potential_constant_expression_1): Likewise.
* cp-tree.def (RANGE_FOR_STMT): Take a 5th operand.
* cp-tree.h (RANGE_FOR_UNROLL): New macro.
(cp_convert_range_for): Adjust prototype.
(finish_while_stmt_cond): Likewise.
(finish_do_stmt): Likewise.
(finish_for_cond): Likewise.
* init.c (build_vec_init): Adjut call to finish_for_cond.
* parser.c (cp_parser_statement): Adjust call to
cp_parser_iteration_statement.
(cp_parser_for): Add unroll parameter and pass it in calls to
cp_parser_range_for and cp_parser_c_for.
(cp_parser_c_for): Add unroll parameter and pass it in call to
finish_for_cond.
(cp_parser_range_for): Add unroll parameter, set in on RANGE_FOR_STMT
and pass it in call to cp_convert_range_for.
(cp_convert_range_for): Add unroll parameter and pass it in call to
finish_for_cond.
(cp_parser_iteration_statement): Add unroll parameter and pass it in
calls to finish_while_stmt_cond, finish_do_stmt and cp_parser_for.
(cp_parser_pragma_ivdep): New static function.
(cp_parser_pragma_unroll): Likewise.
(cp_parser_pragma) <PRAGMA_IVDEP>: Add support for pragma Unroll.
<PRAGMA_UNROLL>: New case.
* pt.c (tsubst_expr) <FOR_STMT>: Adjust call to finish_for_cond.
<RANGE_FOR_STMT>: Pass unrolling factor to cp_convert_range_for.
<WHILE_STMT>: Adjust call to finish_while_stmt_cond.
<DO_STMT>: Adjust call to finish_do_stmt.
* semantics.c (finish_while_stmt_cond): Add unroll parameter and
build ANNOTATE_EXPR if present.
(finish_do_stmt): Likewise.
(finish_for_cond): Likewise.
(begin_range_for_stmt): Build RANGE_FOR_STMT with 5th operand.
fortran/
* array.c (gfc_copy_iterator): Copy unroll field.
* decl.c (directive_unroll): New global variable.
(gfc_match_gcc_unroll): New function.
* gfortran.h (gfc_iterator]): Add unroll field.
(directive_unroll): Declare:
* match.c (gfc_match_do): Use memset to initialize the iterator.
* match.h (gfc_match_gcc_unroll): New prototype.
* parse.c (decode_gcc_attribute): Match "unroll".
(parse_do_block): Set iterator's unroll.
(parse_executable): Diagnose misplaced unroll directive.
* trans-stmt.c (gfc_trans_simple_do) Annotate loop condition with
annot_expr_unroll_kind.
(gfc_trans_do): Likewise.
* gfortran.texi (GNU Fortran Compiler Directives): Split section into
subections 'ATTRIBUTES directive' and 'UNROLL directive'.

From-SVN: r255973

6 years agocompiler: improve escape analysis diagnostics
Ian Lance Taylor [Fri, 22 Dec 2017 03:27:00 +0000 (03:27 +0000)]
compiler: improve escape analysis diagnostics

    This CL brings escape analysis diagnostics closer to the gc
    compiler's. This makes porting and debugging escape analysis
    code easier. A few changes:

    - In the gc compiler, the variable expression is represented
      with the variable node itself (ONAME), the location of which
      is the location of definition. We add a definition_location
      method to Node, and make use of it when the gc compiler emits
      diagnostics at the definition locations.

    - In the gc compiler, methods are named T.M or (*T).M. Add the
      type to the method name when possible.

    - Print "moved to heap" messages only for variables.

    - Reduce some duplicated diagnostics.

    - Print "does not escape" messages in more situations which the
      gc compiler does.

    - Remove the special handling for closure numbers. In gofrontend,
      closures are named "$nested#" where # is a global counter
      starting from 0, whereas in the gc compiler they are named
      "outer.func#" where # is a per-function counter starting from
      1. We tried to adjust the closure name to better matching the
      ones in the gc compiler, however, it cannot match exactly
      because of the difference of the counter. Instead, just print
      "outer.$nested#".

    Reviewed-on: https://go-review.googlesource.com/83875

From-SVN: r255967

6 years ago[SFN] sync up debug-only stmt list's side effects with empty stmts too
Alexandre Oliva [Fri, 22 Dec 2017 02:07:31 +0000 (02:07 +0000)]
[SFN] sync up debug-only stmt list's side effects with empty stmts too

for  gcc/c-family/ChangeLog

PR debug/83527
PR debug/83419
* c-semantics.c (only_debug_stmts_after_p): New.
(pop_stmt_list): Clear side effects in debug-only stmt list.
Check for single nondebug stmt followed by debug stmts only.

for  gcc/testsuite/ChangeLog

PR debug/83527
PR debug/83419
* gcc.dg/pr83527.c: New.

From-SVN: r255966

6 years agoDaily bump.
GCC Administrator [Fri, 22 Dec 2017 00:16:15 +0000 (00:16 +0000)]
Daily bump.

From-SVN: r255965

6 years agoPR testsuite/83462 - c-c++-common/Warray-bounds-3.c fails
Martin Sebor [Fri, 22 Dec 2017 00:07:39 +0000 (00:07 +0000)]
PR testsuite/83462 - c-c++-common/Warray-bounds-3.c fails

gcc/testsuite/ChangeLog

* c-c++-common/Warray-bounds-3.c: Adjust dg-warning grep pattern.

From-SVN: r255962

6 years agore PR middle-end/83487 (ICE in expand_call, at calls.c:4098)
Jakub Jelinek [Thu, 21 Dec 2017 23:10:45 +0000 (00:10 +0100)]
re PR middle-end/83487 (ICE in expand_call, at calls.c:4098)

PR middle-end/83487
* config/i386/i386.c (ix86_function_arg_boundary): Return
PARM_BOUNDARY for TYPE_EMPTY_P types.

* gcc.c-torture/compile/pr83487.c: New test.
* gcc.dg/compat/pr83487-1.h: New file.
* gcc.dg/compat/pr83487-1_main.c: New test.
* gcc.dg/compat/pr83487-1_x.c: New file.
* gcc.dg/compat/pr83487-1_y.c: New file.
* gcc.dg/compat/pr83487-2_main.c: New test.
* gcc.dg/compat/pr83487-2_x.c: New file.
* gcc.dg/compat/pr83487-2_y.c: New file.
* g++.dg/abi/pr83487.C: New test.
* g++.dg/compat/abi/pr83487-1_main.C: New test.
* g++.dg/compat/abi/pr83487-1_x.C: New file.
* g++.dg/compat/abi/pr83487-1_y.C: New file.
* g++.dg/compat/abi/pr83487-2_main.C: New test.
* g++.dg/compat/abi/pr83487-2_x.C: New file.
* g++.dg/compat/abi/pr83487-2_y.C: New file.

From-SVN: r255961

6 years agore PR c/83448 (ice in get_source_location_for_substring, at input.c:1507)
Jakub Jelinek [Thu, 21 Dec 2017 23:09:14 +0000 (00:09 +0100)]
re PR c/83448 (ice in get_source_location_for_substring, at input.c:1507)

PR c/83448
* gimple-ssa-sprintf.c (maybe_warn): Don't call set_caret_index
if navail is >= dir.len.

* gcc.c-torture/compile/pr83448.c: New test.
* gcc.dg/tree-ssa/builtin-snprintf-warn-4.c: New test.

From-SVN: r255960

6 years agoAdd missing PR number
Eric Botcazou [Thu, 21 Dec 2017 22:08:30 +0000 (22:08 +0000)]
Add missing PR number

From-SVN: r255959