From 7b7ec6c51efe53786f0efdc7c9127ba8221331fd Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Tue, 21 Jun 2011 11:02:38 +0000 Subject: [PATCH] re PR tree-optimization/49483 (unable to vectorize code equivalent to "scalbnf") 2011-06-21 Richard Guenther PR tree-optimization/49483 * tree-vect-stmts.c (vectorizable_assignment): Also handle VIEW_CONVERT_EXPR conversions. * gcc.dg/vect/vect-120.c: New testcase. From-SVN: r175252 --- gcc/ChangeLog | 6 +++++ gcc/testsuite/ChangeLog | 5 ++++ gcc/testsuite/gcc.dg/vect/vect-120.c | 36 ++++++++++++++++++++++++++++ gcc/tree-vect-stmts.c | 9 +++++-- 4 files changed, 54 insertions(+), 2 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/vect/vect-120.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 60e53955f0a..4ec260347d8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-06-21 Richard Guenther + + PR tree-optimization/49483 + * tree-vect-stmts.c (vectorizable_assignment): Also handle + VIEW_CONVERT_EXPR conversions. + 2011-06-21 Joseph Myers * config/avr/avr-mcus.def, config/avr/genopt.sh: New files. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 20fc4a412b2..9dec802661d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-06-21 Richard Guenther + + PR tree-optimization/49483 + * gcc.dg/vect/vect-120.c: New testcase. + 2011-06-21 Ira Rosen PR testsuite/49443 diff --git a/gcc/testsuite/gcc.dg/vect/vect-120.c b/gcc/testsuite/gcc.dg/vect/vect-120.c new file mode 100644 index 00000000000..b9a2f5004ee --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-120.c @@ -0,0 +1,36 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target vect_float } */ +/* { dg-require-effective-target vect_shift } */ + +static inline float +i2f(int x) +{ + union { float f; int i; } tmp; + tmp.i=x; + return tmp.f; +} +static inline float +vect_ldexpf(float x, int n) +{ + n = (n+0x7f)<<23; + return x * i2f(n); +} + +float __attribute__ ((aligned(16))) a[1024]; +float __attribute__ ((aligned(16))) b[1024]; +float __attribute__ ((aligned(16))) c[1024]; + +void +tV() +{ + int i; + for (i=0; i!=1024; ++i) + { + float z = a[i]; + int n = b[i]; + c[i] = vect_ldexpf(z,n); + } +} + +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 6a5ba22d42a..f9b96391081 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -2089,6 +2089,9 @@ vectorizable_assignment (gimple stmt, gimple_stmt_iterator *gsi, else return false; + if (code == VIEW_CONVERT_EXPR) + op = TREE_OPERAND (op, 0); + if (!vect_is_simple_use_1 (op, loop_vinfo, bb_vinfo, &def_stmt, &def, &dt[0], &vectype_in)) { @@ -2099,7 +2102,8 @@ vectorizable_assignment (gimple stmt, gimple_stmt_iterator *gsi, /* We can handle NOP_EXPR conversions that do not change the number of elements or the vector size. */ - if (CONVERT_EXPR_CODE_P (code) + if ((CONVERT_EXPR_CODE_P (code) + || code == VIEW_CONVERT_EXPR) && (!vectype_in || TYPE_VECTOR_SUBPARTS (vectype_in) != nunits || (GET_MODE_SIZE (TYPE_MODE (vectype)) @@ -2134,7 +2138,8 @@ vectorizable_assignment (gimple stmt, gimple_stmt_iterator *gsi, /* Arguments are ready. create the new vector stmt. */ FOR_EACH_VEC_ELT (tree, vec_oprnds, i, vop) { - if (CONVERT_EXPR_CODE_P (code)) + if (CONVERT_EXPR_CODE_P (code) + || code == VIEW_CONVERT_EXPR) vop = build1 (VIEW_CONVERT_EXPR, vectype, vop); new_stmt = gimple_build_assign (vec_dest, vop); new_temp = make_ssa_name (vec_dest, new_stmt); -- 2.30.2