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| author | Richard Biener <rguenther@suse.de> | 2019-07-12 14:36:50 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-07-12 14:36:50 +0000 |
| commit | cf91b5997dec281e4b784c163d76d5be3e8569f6 (patch) | |
| tree | be91e099751f1fd3d9053da3a320b2d942abc9fa | |
| parent | b847405adee3059762816ab009bc4a5281b5b911 (diff) | |
| download | gcc-cf91b5997dec281e4b784c163d76d5be3e8569f6.zip gcc-cf91b5997dec281e4b784c163d76d5be3e8569f6.tar.gz gcc-cf91b5997dec281e4b784c163d76d5be3e8569f6.tar.bz2 | |
re PR tree-optimization/91145 (ICE: in vect_build_slp_tree_2, at tree-vect-slp.c:1143 with -march=skylake-avx512 -O3)
2019-07-12 Richard Biener <rguenther@suse.de>
PR tree-optimization/91145
* tree-vect-slp.c (vect_build_slp_tree_2): Fix reduction
chain check.
* gcc.dg/torture/pr91145.c: New testcase.
From-SVN: r273445
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr91145.c | 16 | ||||
| -rw-r--r-- | gcc/tree-vect-slp.c | 3 |
4 files changed, 29 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2d1d29f..84fee9e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2019-07-12 Richard Biener <rguenther@suse.de> + + PR tree-optimization/91145 + * tree-vect-slp.c (vect_build_slp_tree_2): Fix reduction + chain check. + 2019-07-12 Alexandre Oliva <oliva@adacore.com> * tree-eh.c (honor_protect_cleanup_actions): Use outer_ diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index debec92..e948a71 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,7 +1,11 @@ +2019-07-12 Richard Biener <rguenther@suse.de> + + PR tree-optimization/91145 + * gcc.dg/torture/pr91145.c: New testcase. + 2019-07-12 Alexandre Oliva <oliva@adacore.com> * gcc.dg/gimplefe-44.c: New. - * gcc.dg/gimplefe-43.c: New. 2019-07-12 Richard Biener <rguenther@suse.de> diff --git a/gcc/testsuite/gcc.dg/torture/pr91145.c b/gcc/testsuite/gcc.dg/torture/pr91145.c new file mode 100644 index 0000000..7d62ad1 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr91145.c @@ -0,0 +1,16 @@ +/* { dg-do compile } */ +/* { dg-additional-options "-march=skylake-avx512" { target x86_64-*-* i?86-*-* } } */ + +int a, c; +unsigned b, e; +extern unsigned d[100]; + +void f() +{ + for (int g = 0; g < 70; g++) + { + + b += d[g] - c; + e -= g ^ a; + } +} diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c index d172c3a..31f4519 100644 --- a/gcc/tree-vect-slp.c +++ b/gcc/tree-vect-slp.c @@ -1140,7 +1140,8 @@ vect_build_slp_tree_2 (vec_info *vinfo, FOR_EACH_VEC_ELT (stmts, i, other_info) { /* But for reduction chains only check on the first stmt. */ - if (REDUC_GROUP_FIRST_ELEMENT (other_info) + if (!STMT_VINFO_DATA_REF (other_info) + && REDUC_GROUP_FIRST_ELEMENT (other_info) && REDUC_GROUP_FIRST_ELEMENT (other_info) != stmt_info) continue; if (STMT_VINFO_DEF_TYPE (other_info) != def_type) |