diff options
| author | Richard Biener <rguenther@suse.de> | 2019-12-02 10:50:45 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-12-02 10:50:45 +0000 |
| commit | 2679730bab0202e7591adc6ac0ea1347b8954983 (patch) | |
| tree | c3aad6aba27d6cf0aab6744a87c069ec79ce806b /gcc | |
| parent | a213ab38560f0b95ec318b2a4795e66cc0518848 (diff) | |
| download | gcc-2679730bab0202e7591adc6ac0ea1347b8954983.zip gcc-2679730bab0202e7591adc6ac0ea1347b8954983.tar.gz gcc-2679730bab0202e7591adc6ac0ea1347b8954983.tar.bz2 | |
re PR tree-optimization/92742 (ICE in info_for_reduction, at tree-vect-loop.c:4367)
2019-12-02 Richard Biener <rguenther@suse.de>
PR tree-optimization/92742
* tree-vect-loop.c (vect_fixup_reduc_chain): Do not
touch the def-type but verify it is consistent with the
original stmts.
* gcc.dg/torture/pr92742.c: New testcase.
From-SVN: r278896
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr92742.c | 20 | ||||
| -rw-r--r-- | gcc/tree-vect-loop.c | 3 |
4 files changed, 34 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9b32421..1d342f4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2019-12-02 Richard Biener <rguenther@suse.de> + + PR tree-optimization/92742 + * tree-vect-loop.c (vect_fixup_reduc_chain): Do not + touch the def-type but verify it is consistent with the + original stmts. + 2019-12-02 Jakub Jelinek <jakub@redhat.com> PR tree-optimization/92712 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 12abe73..03fb4d9 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2019-12-02 Richard Biener <rguenther@suse.de> + + PR tree-optimization/92742 + * gcc.dg/torture/pr92742.c: New testcase. + 2019-12-02 Jakub Jelinek <jakub@redhat.com> PR tree-optimization/92712 diff --git a/gcc/testsuite/gcc.dg/torture/pr92742.c b/gcc/testsuite/gcc.dg/torture/pr92742.c new file mode 100644 index 0000000..59e74c0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr92742.c @@ -0,0 +1,20 @@ +/* { dg-do compile } */ +/* { dg-additional-options "-ftree-vectorize" } */ + +unsigned int qw; + +int +rs (int iq, int wg) +{ + for (qw = 0; qw < 2; ++qw) + { + } + + while (iq < 1) + { + wg *= qw * 2; + ++iq; + } + + return wg; +} diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 77c5a98..83b0e0b 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -643,6 +643,8 @@ vect_fixup_reduc_chain (stmt_vec_info stmt_info) do { stmtp = STMT_VINFO_RELATED_STMT (stmt_info); + gcc_checking_assert (STMT_VINFO_DEF_TYPE (stmtp) + == STMT_VINFO_DEF_TYPE (stmt_info)); REDUC_GROUP_FIRST_ELEMENT (stmtp) = firstp; stmt_info = REDUC_GROUP_NEXT_ELEMENT (stmt_info); if (stmt_info) @@ -650,7 +652,6 @@ vect_fixup_reduc_chain (stmt_vec_info stmt_info) = STMT_VINFO_RELATED_STMT (stmt_info); } while (stmt_info); - STMT_VINFO_DEF_TYPE (stmtp) = vect_reduction_def; } /* Fixup scalar cycles that now have their stmts detected as patterns. */ |