+2020-04-29 Richard Sandiford <richard.sandiford@arm.com>
+
+ * doc/sourcebuild.texi (arm_arch_v8a_hard_ok): Document new
+ effective-target keyword.
+ (arm_arch_v8a_hard_multilib): Likewise.
+ (arm_arch_v8a_hard): Document new dg-add-options keyword.
+ * config/arm/arm.c (arm_return_in_memory): Note that the APCS
+ code is deprecated and has not been updated to handle
+ DECL_FIELD_ABI_IGNORED.
+ (WARN_PSABI_EMPTY_CXX17_BASE): New constant.
+ (WARN_PSABI_NO_UNIQUE_ADDRESS): Likewise.
+ (aapcs_vfp_sub_candidate): Replace the boolean pointer parameter
+ avoid_cxx17_empty_base with a pointer to a bitmask. Ignore fields
+ whose DECL_FIELD_ABI_IGNORED bit is set when determining whether
+ something actually is a HFA or HVA. Record whether we see a
+ [[no_unique_address]] field that previous GCCs would not have
+ ignored in this way.
+ (aapcs_vfp_is_call_or_return_candidate): Update the calls to
+ aapcs_vfp_sub_candidate and report a -Wpsabi warning for the
+ [[no_unique_address]] case. Use TYPE_MAIN_VARIANT in the
+ diagnostic messages.
+ (arm_needs_doubleword_align): Add a comment explaining why we
+ consider even zero-sized fields.
+
2020-04-29 Richard Biener <rguenther@suse.de>
Li Zekun <lizekun1@huawei.com>
/* Find the first field, ignoring non FIELD_DECL things which will
have been created by C++. */
+ /* NOTE: This code is deprecated and has not been updated to handle
+ DECL_FIELD_ABI_IGNORED. */
for (field = TYPE_FIELDS (type);
field && TREE_CODE (field) != FIELD_DECL;
field = DECL_CHAIN (field))
pcum->aapcs_vfp_reg_alloc = 0;
}
+/* Bitmasks that indicate whether earlier versions of GCC would have
+ taken a different path through the ABI logic. This should result in
+ a -Wpsabi warning if the earlier path led to a different ABI decision.
+
+ WARN_PSABI_EMPTY_CXX17_BASE
+ Indicates that the type includes an artificial empty C++17 base field
+ that, prior to GCC 10.1, would prevent the type from being treated as
+ a HFA or HVA. See PR94711 for details.
+
+ WARN_PSABI_NO_UNIQUE_ADDRESS
+ Indicates that the type includes an empty [[no_unique_address]] field
+ that, prior to GCC 10.1, would prevent the type from being treated as
+ a HFA or HVA. */
+const unsigned int WARN_PSABI_EMPTY_CXX17_BASE = 1U << 0;
+const unsigned int WARN_PSABI_NO_UNIQUE_ADDRESS = 1U << 1;
+
/* Walk down the type tree of TYPE counting consecutive base elements.
If *MODEP is VOIDmode, then set it to the first valid floating point
type. If a non-floating point type is found, or if a floating point
type that doesn't match a non-VOIDmode *MODEP is found, then return -1,
otherwise return the count in the sub-tree.
- The AVOID_CXX17_EMPTY_BASE argument is to allow the caller to check whether
- this function has changed its behavior after the fix for PR94384 -- this fix
- is to avoid artificial fields in empty base classes.
- When called with this argument as a NULL pointer this function does not
- avoid the artificial fields -- this is useful to check whether the function
- returns something different after the fix.
- When called pointing at a value, this function avoids such artificial fields
- and sets the value to TRUE when one of these fields has been set. */
+ The WARN_PSABI_FLAGS argument allows the caller to check whether this
+ function has changed its behavior relative to earlier versions of GCC.
+ Normally the argument should be nonnull and point to a zero-initialized
+ variable. The function then records whether the ABI decision might
+ be affected by a known fix to the ABI logic, setting the associated
+ WARN_PSABI_* bits if so.
+
+ When the argument is instead a null pointer, the function tries to
+ simulate the behavior of GCC before all such ABI fixes were made.
+ This is useful to check whether the function returns something
+ different after the ABI fixes. */
static int
aapcs_vfp_sub_candidate (const_tree type, machine_mode *modep,
- bool *avoid_cxx17_empty_base)
+ unsigned int *warn_psabi_flags)
{
machine_mode mode;
HOST_WIDE_INT size;
return -1;
count = aapcs_vfp_sub_candidate (TREE_TYPE (type), modep,
- avoid_cxx17_empty_base);
+ warn_psabi_flags);
if (count == -1
|| !index
|| !TYPE_MAX_VALUE (index)
if (TREE_CODE (field) != FIELD_DECL)
continue;
- /* Ignore C++17 empty base fields, while their type indicates they
- contain padding, this is only sometimes contributed to the derived
- class.
- When the padding is contributed to the derived class that's
- caught by the general test for padding below. */
- if (cxx17_empty_base_field_p (field)
- && avoid_cxx17_empty_base)
+ if (DECL_FIELD_ABI_IGNORED (field))
{
- *avoid_cxx17_empty_base = true;
- continue;
+ /* See whether this is something that earlier versions of
+ GCC failed to ignore. */
+ unsigned int flag;
+ if (lookup_attribute ("no_unique_address",
+ DECL_ATTRIBUTES (field)))
+ flag = WARN_PSABI_NO_UNIQUE_ADDRESS;
+ else if (cxx17_empty_base_field_p (field))
+ flag = WARN_PSABI_EMPTY_CXX17_BASE;
+ else
+ /* No compatibility problem. */
+ continue;
+
+ /* Simulate the old behavior when WARN_PSABI_FLAGS is null. */
+ if (warn_psabi_flags)
+ {
+ *warn_psabi_flags |= flag;
+ continue;
+ }
}
sub_count = aapcs_vfp_sub_candidate (TREE_TYPE (field), modep,
- avoid_cxx17_empty_base);
+ warn_psabi_flags);
if (sub_count < 0)
return -1;
count += sub_count;
continue;
sub_count = aapcs_vfp_sub_candidate (TREE_TYPE (field), modep,
- avoid_cxx17_empty_base);
+ warn_psabi_flags);
if (sub_count < 0)
return -1;
count = count > sub_count ? count : sub_count;
out from the mode. */
if (type)
{
- bool avoided = false;
- int ag_count = aapcs_vfp_sub_candidate (type, &new_mode, &avoided);
+ unsigned int warn_psabi_flags = 0;
+ int ag_count = aapcs_vfp_sub_candidate (type, &new_mode,
+ &warn_psabi_flags);
if (ag_count > 0 && ag_count <= 4)
{
static unsigned last_reported_type_uid;
unsigned uid = TYPE_UID (TYPE_MAIN_VARIANT (type));
int alt;
if (warn_psabi
- && avoided
+ && warn_psabi_flags
&& uid != last_reported_type_uid
&& ((alt = aapcs_vfp_sub_candidate (type, &new_mode, NULL))
!= ag_count))
{
gcc_assert (alt == -1);
last_reported_type_uid = uid;
- inform (input_location, "parameter passing for argument of type "
- "%qT when C++17 is enabled changed to match C++14 "
- "in GCC 10.1", type);
+ /* Use TYPE_MAIN_VARIANT to strip any redundant const
+ qualification. */
+ if (warn_psabi_flags & WARN_PSABI_NO_UNIQUE_ADDRESS)
+ inform (input_location, "parameter passing for argument of "
+ "type %qT with %<[[no_unique_address]]%> members "
+ "changed in GCC 10.1", TYPE_MAIN_VARIANT (type));
+ else if (warn_psabi_flags & WARN_PSABI_EMPTY_CXX17_BASE)
+ inform (input_location, "parameter passing for argument of "
+ "type %qT when C++17 is enabled changed to match "
+ "C++14 in GCC 10.1", TYPE_MAIN_VARIANT (type));
}
*count = ag_count;
}
int ret = 0;
int ret2 = 0;
- /* Record/aggregate types: Use greatest member alignment of any member. */
+ /* Record/aggregate types: Use greatest member alignment of any member.
+
+ Note that we explicitly consider zero-sized fields here, even though
+ they don't map to AAPCS machine types. For example, in:
+
+ struct __attribute__((aligned(8))) empty {};
+
+ struct s {
+ [[no_unique_address]] empty e;
+ int x;
+ };
+
+ "s" contains only one Fundamental Data Type (the int field)
+ but gains 8-byte alignment and size thanks to "e". */
for (tree field = TYPE_FIELDS (type); field; field = DECL_CHAIN (field))
if (DECL_ALIGN (field) > PARM_BOUNDARY)
{
ARM target supports @code{-mfpu=vfp3 -mfloat-abi=softfp}.
Some multilibs may be incompatible with these options.
+@item arm_arch_v8a_hard_ok
+The compiler is targeting @code{arm*-*-*} and can compile and assemble code
+using the options @code{-march=armv8-a -mfpu=neon-fp-armv8 -mfloat-abi=hard}.
+This is not enough to guarantee that linking works.
+
+@item arm_arch_v8a_hard_multilib
+The compiler is targeting @code{arm*-*-*} and can build programs using
+the options @code{-march=armv8-a -mfpu=neon-fp-armv8 -mfloat-abi=hard}.
+The target can also run the resulting binaries.
+
@item arm_v8_vfp_ok
ARM target supports @code{-mfpu=fp-armv8 -mfloat-abi=softfp}.
Some multilibs may be incompatible with these options.
arm vfp3 floating point support; see
the @ref{arm_vfp3_ok,,arm_vfp3_ok effective target keyword}.
+@item arm_arch_v8a_hard
+Add options for ARMv8-A and the hard-float variant of the AAPCS,
+if this is supported by the compiler; see the
+@ref{arm_arch_v8a_hard_ok,,arm_arch_v8a_hard_ok} effective target keyword.
+
@item arm_v8_1a_neon
Add options for ARMv8.1-A with Adv.SIMD support, if this is supported
by the target; see the @ref{arm_v8_1a_neon_ok,,arm_v8_1a_neon_ok}
+2020-04-29 Richard Sandiford <richard.sandiford@arm.com>
+
+ * lib/target-supports.exp: Add v8a_hard to the list of arm_arch_*
+ targets.
+ * g++.target/arm/no_unique_address_1.C: New test.
+ * g++.target/arm/no_unique_address_2.C: Likewise.
+
2020-04-29 Richard Biener <rguenther@suse.de>
Li Zekun <lizekun1@huawei.com>
--- /dev/null
+/* { dg-require-effective-target arm_arch_v8a_hard_ok } */
+/* { dg-options "-std=c++11 -O -foptimize-sibling-calls" } */
+/* { dg-add-options arm_arch_v8a_hard } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
+
+struct X { };
+struct Y { int : 0; };
+struct Z { int : 0; Y y; };
+struct W : public X { X q; };
+
+struct A { float a; };
+
+struct B : public X { float a; };
+struct C : public Y { float a; };
+struct D : public Z { float a; };
+struct E : public W { float a; };
+
+struct F { [[no_unique_address]] X x; float a; };
+struct G { [[no_unique_address]] Y y; float a; };
+struct H { [[no_unique_address]] Z z; float a; };
+struct I { [[no_unique_address]] W w; float a; };
+
+struct J { float a; [[no_unique_address]] X x; float b; };
+struct K { float a; [[no_unique_address]] Y y; float b; };
+struct L { float a; [[no_unique_address]] Z z; float b; };
+struct M { float a; [[no_unique_address]] W w; float b; };
+
+struct N : public A { float b; };
+struct O { [[no_unique_address]] A a; float b; };
+
+struct P : public Y { int : 0; float a, b, c, d; };
+
+union Q { X x; float a; };
+union R { [[no_unique_address]] X x; float a; };
+
+union S { A a; float b; };
+union T { F f; float b; };
+union U { N n; O o; };
+
+typedef S Salias;
+typedef T Talias;
+typedef U Ualias;
+
+#define T(S, s) extern int callee_##s (S)
+
+/*
+** _Z8caller_aR1A:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (A, a); int caller_a (A &a) { return callee_a (a); } /* { dg-bogus {argument of type 'A'} } */
+
+/*
+** _Z8caller_bR1B:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (B, b); int caller_b (B &b) { return callee_b (b); } /* { dg-bogus {argument of type 'B'} } */
+
+/*
+** _Z8caller_cR1C:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (C, c); int caller_c (C &c) { return callee_c (c); } /* { dg-bogus {argument of type 'C'} } */
+
+/*
+** _Z8caller_dR1D:
+** ldm r0, {r0, r1}
+** b .*
+*/
+T (D, d); int caller_d (D &d) { return callee_d (d); } /* { dg-bogus {argument of type 'D'} } */
+
+/*
+** _Z8caller_eR1E:
+** ldm r0, {r0, r1}
+** b .*
+*/
+T (E, e); int caller_e (E &e) { return callee_e (e); } /* { dg-bogus {argument of type 'E'} } */
+
+/*
+** _Z8caller_fR1F:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (F, f); int caller_f (F &f) { return callee_f (f); } /* { dg-message {parameter passing for argument of type 'F' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_gR1G:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (G, g); int caller_g (G &g) { return callee_g (g); } /* { dg-message {parameter passing for argument of type 'G' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_hR1H:
+** ldm r0, {r0, r1}
+** b .*
+*/
+T (H, h); int caller_h (H &h) { return callee_h (h); } /* { dg-bogus {argument of type 'H'} } */
+
+/*
+** _Z8caller_iR1I:
+** ldm r0, {r0, r1}
+** b .*
+*/
+T (I, i); int caller_i (I &i) { return callee_i (i); } /* { dg-bogus {argument of type 'I'} } */
+
+/*
+** _Z8caller_jR1J:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (J, j); int caller_j (J &j) { return callee_j (j); } /* { dg-message {parameter passing for argument of type 'J' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_kR1K:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (K, k); int caller_k (K &k) { return callee_k (k); } /* { dg-message {parameter passing for argument of type 'K' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_lR1L:
+** ldm r0, {r0, r1, r2}
+** b .*
+*/
+T (L, l); int caller_l (L &l) { return callee_l (l); } /* { dg-bogus {argument of type 'L'} } */
+
+/*
+** _Z8caller_mR1M:
+** ldm r0, {r0, r1, r2}
+** b .*
+*/
+T (M, m); int caller_m (M &m) { return callee_m (m); } /* { dg-bogus {argument of type 'M'} } */
+
+/*
+** _Z8caller_nR1N:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (N, n); int caller_n (N &n) { return callee_n (n); } /* { dg-bogus {argument of type 'N'} } */
+
+/*
+** _Z8caller_oR1O:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (O, o); int caller_o (O &o) { return callee_o (o); } /* { dg-bogus {argument of type 'O'} } */
+
+/*
+** _Z8caller_pR1P:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** vldr.32 s2, \[r0, #8\]
+** vldr.32 s3, \[r0, #12\]
+** b .*
+*/
+T (P, p); int caller_p (P &p) { return callee_p (p); } /* { dg-bogus {argument of type 'P'} } */
+
+/*
+** _Z8caller_qR1Q:
+** ldr r0, \[r0\]
+** b .*
+*/
+T (Q, q); int caller_q (Q &q) { return callee_q (q); } /* { dg-bogus {argument of type 'Q'} } */
+
+/*
+** _Z8caller_rR1R:
+** ldr r0, \[r0\]
+** b .*
+*/
+T (R, r); int caller_r (R &r) { return callee_r (r); } /* { dg-bogus {argument of type 'R'} } */
+
+/*
+** _Z8caller_sR1S:
+** vldr.32 s0, \[r0\] @ int
+** b .*
+*/
+T (Salias, s); int caller_s (Salias &s) { return callee_s (s); } /* { dg-bogus {argument of type 'S'} } */
+
+/*
+** _Z8caller_tR1T:
+** vldr.32 s0, \[r0\] @ int
+** b .*
+*/
+T (Talias, t); int caller_t (Talias &t) { return callee_t (t); } /* { dg-message {parameter passing for argument of type 'T' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_uR1U:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (Ualias, u); int caller_u (Ualias &u) { return callee_u (u); } /* { dg-bogus {argument of type 'U'} } */
+
+/* { dg-bogus {argument of type 'const} "should not be printed as const" { target *-*-*} 0 } */
--- /dev/null
+/* { dg-require-effective-target arm_arch_v8a_hard_ok } */
+/* { dg-options "-std=c++17 -O -foptimize-sibling-calls" } */
+/* { dg-add-options arm_arch_v8a_hard } */
+/* { dg-final { check-function-bodies "**" "" "" } } */
+
+struct X { };
+struct Y { int : 0; };
+struct Z { int : 0; Y y; };
+struct W : public X { X q; };
+
+struct A { float a; };
+
+struct B : public X { float a; };
+struct C : public Y { float a; };
+struct D : public Z { float a; };
+struct E : public W { float a; };
+
+struct F { [[no_unique_address]] X x; float a; };
+struct G { [[no_unique_address]] Y y; float a; };
+struct H { [[no_unique_address]] Z z; float a; };
+struct I { [[no_unique_address]] W w; float a; };
+
+struct J { float a; [[no_unique_address]] X x; float b; };
+struct K { float a; [[no_unique_address]] Y y; float b; };
+struct L { float a; [[no_unique_address]] Z z; float b; };
+struct M { float a; [[no_unique_address]] W w; float b; };
+
+struct N : public A { float b; };
+struct O { [[no_unique_address]] A a; float b; };
+
+struct P : public Y { int : 0; float a, b, c, d; };
+
+union Q { X x; float a; };
+union R { [[no_unique_address]] X x; float a; };
+
+union S { A a; float b; };
+union T { F f; float b; };
+union U { N n; O o; };
+
+typedef S Salias;
+typedef T Talias;
+typedef U Ualias;
+
+#define T(S, s) extern int callee_##s (S)
+
+/*
+** _Z8caller_aR1A:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (A, a); int caller_a (A &a) { return callee_a (a); } /* { dg-bogus {argument of type 'A'} } */
+
+/*
+** _Z8caller_bR1B:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (B, b); int caller_b (B &b) { return callee_b (b); } /* { dg-message {parameter passing for argument of type 'B' when C\+\+17 is enabled changed to match C\+\+14 in GCC 10.1} } */
+
+/*
+** _Z8caller_cR1C:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (C, c); int caller_c (C &c) { return callee_c (c); } /* { dg-message {parameter passing for argument of type 'C' when C\+\+17 is enabled changed to match C\+\+14 in GCC 10.1} } */
+
+/*
+** _Z8caller_dR1D:
+** ldm r0, {r0, r1}
+** b .*
+*/
+T (D, d); int caller_d (D &d) { return callee_d (d); } /* { dg-bogus {argument of type 'D'} } */
+
+/*
+** _Z8caller_eR1E:
+** ldm r0, {r0, r1}
+** b .*
+*/
+T (E, e); int caller_e (E &e) { return callee_e (e); } /* { dg-bogus {argument of type 'E'} } */
+
+/*
+** _Z8caller_fR1F:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (F, f); int caller_f (F &f) { return callee_f (f); } /* { dg-message {parameter passing for argument of type 'F' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_gR1G:
+** vldr.32 s0, \[r0\]
+** b .*
+*/
+T (G, g); int caller_g (G &g) { return callee_g (g); } /* { dg-message {parameter passing for argument of type 'G' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_hR1H:
+** ldm r0, {r0, r1}
+** b .*
+*/
+T (H, h); int caller_h (H &h) { return callee_h (h); } /* { dg-bogus {argument of type 'H'} } */
+
+/*
+** _Z8caller_iR1I:
+** ldm r0, {r0, r1}
+** b .*
+*/
+T (I, i); int caller_i (I &i) { return callee_i (i); } /* { dg-bogus {argument of type 'I'} } */
+
+/*
+** _Z8caller_jR1J:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (J, j); int caller_j (J &j) { return callee_j (j); } /* { dg-message {parameter passing for argument of type 'J' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_kR1K:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (K, k); int caller_k (K &k) { return callee_k (k); } /* { dg-message {parameter passing for argument of type 'K' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_lR1L:
+** ldm r0, {r0, r1, r2}
+** b .*
+*/
+T (L, l); int caller_l (L &l) { return callee_l (l); } /* { dg-bogus {argument of type 'L'} } */
+
+/*
+** _Z8caller_mR1M:
+** ldm r0, {r0, r1, r2}
+** b .*
+*/
+T (M, m); int caller_m (M &m) { return callee_m (m); } /* { dg-bogus {argument of type 'M'} } */
+
+/*
+** _Z8caller_nR1N:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (N, n); int caller_n (N &n) { return callee_n (n); } /* { dg-bogus {argument of type 'N'} } */
+
+/*
+** _Z8caller_oR1O:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (O, o); int caller_o (O &o) { return callee_o (o); } /* { dg-bogus {argument of type 'O'} } */
+
+/*
+** _Z8caller_pR1P:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** vldr.32 s2, \[r0, #8\]
+** vldr.32 s3, \[r0, #12\]
+** b .*
+*/
+T (P, p); int caller_p (P &p) { return callee_p (p); } /* { dg-message {parameter passing for argument of type 'P' when C\+\+17 is enabled changed to match C\+\+14 in GCC 10.1} } */
+
+/*
+** _Z8caller_qR1Q:
+** ldr r0, \[r0\]
+** b .*
+*/
+T (Q, q); int caller_q (Q &q) { return callee_q (q); } /* { dg-bogus {argument of type 'Q'} } */
+
+/*
+** _Z8caller_rR1R:
+** ldr r0, \[r0\]
+** b .*
+*/
+T (R, r); int caller_r (R &r) { return callee_r (r); } /* { dg-bogus {argument of type 'R'} } */
+
+/*
+** _Z8caller_sR1S:
+** vldr.32 s0, \[r0\] @ int
+** b .*
+*/
+T (Salias, s); int caller_s (Salias &s) { return callee_s (s); } /* { dg-bogus {argument of type 'S'} } */
+
+/*
+** _Z8caller_tR1T:
+** vldr.32 s0, \[r0\] @ int
+** b .*
+*/
+T (Talias, t); int caller_t (Talias &t) { return callee_t (t); } /* { dg-message {parameter passing for argument of type 'T' with '\[\[no_unique_address\]\]' members changed in GCC 10.1} } */
+
+/*
+** _Z8caller_uR1U:
+** vldr.32 s0, \[r0\]
+** vldr.32 s1, \[r0, #4\]
+** b .*
+*/
+T (Ualias, u); int caller_u (Ualias &u) { return callee_u (u); } /* { dg-bogus {argument of type 'U'} } */
+
+/* { dg-bogus {argument of type 'const} "should not be printed as const" { target *-*-*} 0 } */
v7ve "-march=armv7ve -marm"
"__ARM_ARCH_7A__ && __ARM_FEATURE_IDIV"
v8a "-march=armv8-a" __ARM_ARCH_8A__
+ v8a_hard "-march=armv8-a -mfpu=neon-fp-armv8 -mfloat-abi=hard" __ARM_ARCH_8A__
v8_1a "-march=armv8.1-a" __ARM_ARCH_8A__
v8_2a "-march=armv8.2-a" __ARM_ARCH_8A__
v8r "-march=armv8-r" __ARM_ARCH_8R__
projects / gcc.git / commitdiff