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| author | Richard Biener <rguenther@suse.de> | 2016-03-21 13:50:50 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-03-21 13:50:50 +0000 |
| commit | 2fac8c142e92dfaed2aa561b1673a26c1fff061f (patch) | |
| tree | a5566024809b0b8210ed61d1335deb870db31259 /gcc | |
| parent | e9bde85499f691bc790b6b8be095900cb72c8458 (diff) | |
| download | gcc-2fac8c142e92dfaed2aa561b1673a26c1fff061f.zip gcc-2fac8c142e92dfaed2aa561b1673a26c1fff061f.tar.gz gcc-2fac8c142e92dfaed2aa561b1673a26c1fff061f.tar.bz2 | |
re PR tree-optimization/70310 (wrong code with vector compare at -O0)
2016-03-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/70310
* tree-vect-generic.c (expand_vector_condition): Fold the built
condition.
* gcc.dg/torture/pr70310.c: New testcase.
From-SVN: r234369
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr70310.c | 20 | ||||
| -rw-r--r-- | gcc/tree-vect-generic.c | 2 |
4 files changed, 32 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 02c2580..fc480c7 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-03-21 Richard Biener <rguenther@suse.de> + + PR tree-optimization/70310 + * tree-vect-generic.c (expand_vector_condition): Fold the built + condition. + 2016-03-21 Kirill Yukhin <kirill.yukhin@intel.com> PR target/70293 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 9f4d811..7880292 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-03-21 Richard Biener <rguenther@suse.de> + + PR tree-optimization/70310 + * gcc.dg/torture/pr70310.c: New testcase. + 2016-03-21 Kirill Yukhin <kirill.yukhin@intel.com> PR target/70293 diff --git a/gcc/testsuite/gcc.dg/torture/pr70310.c b/gcc/testsuite/gcc.dg/torture/pr70310.c new file mode 100644 index 0000000..a962562 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr70310.c @@ -0,0 +1,20 @@ +/* { dg-do run } */ + +typedef unsigned char v32u8 __attribute__ ((vector_size (32))); + +unsigned __attribute__((noinline, noclone)) +foo(unsigned u) +{ + v32u8 v32u8_0 = (v32u8){} > (v32u8){-u}; + return v32u8_0[31] + v32u8_0[0]; +} + +int +main () +{ + unsigned x = foo(0); + __builtin_printf ("%08x\n",x); + if (x != 0) + __builtin_abort(); + return 0; +} diff --git a/gcc/tree-vect-generic.c b/gcc/tree-vect-generic.c index cb15a95..ce91270 100644 --- a/gcc/tree-vect-generic.c +++ b/gcc/tree-vect-generic.c @@ -897,7 +897,7 @@ expand_vector_condition (gimple_stmt_iterator *gsi) { tree aa1 = tree_vec_extract (gsi, comp_inner_type, a1, width, index); tree aa2 = tree_vec_extract (gsi, comp_inner_type, a2, width, index); - aa = build2 (TREE_CODE (a), cond_type, aa1, aa2); + aa = fold_build2 (TREE_CODE (a), cond_type, aa1, aa2); } else aa = tree_vec_extract (gsi, cond_type, a, width, index); |