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| author | Jakub Jelinek <jakub@redhat.com> | 2010-12-30 09:24:58 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-12-30 09:24:58 +0100 |
| commit | 87ebde38c04dcb4511e6081e916a6c910ae39e8d (patch) | |
| tree | 617d95c0b654fc903f9cc9b4e34e82b0b90227f3 /gcc | |
| parent | dad6bca98ab71f35eebe7fe9690cca0c105573f7 (diff) | |
| download | gcc-87ebde38c04dcb4511e6081e916a6c910ae39e8d.zip gcc-87ebde38c04dcb4511e6081e916a6c910ae39e8d.tar.gz gcc-87ebde38c04dcb4511e6081e916a6c910ae39e8d.tar.bz2 | |
re PR tree-optimization/47060 (ICE: SIGSEGV in reduction_phi (tree-parloops.c:212) with -O -ffast-math -ftree-parallelize-loops=2 -fno-tree-dce)
PR tree-optimization/47060
* tree-parloops.c (reduction_phi): Return NULL if PHI is NULL.
* gcc.dg/autopar/pr47060.c: New test.
From-SVN: r168336
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/autopar/pr47060.c | 21 | ||||
| -rw-r--r-- | gcc/tree-parloops.c | 2 |
4 files changed, 32 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4f29072..067ed75 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2010-12-30 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/47060 + * tree-parloops.c (reduction_phi): Return NULL if PHI is NULL. + 2010-12-29 Paul Koning <ni1d@arrl.net> * config/pdp11/pdp11-protos.h (pdp11_asm_output_var): Declare. diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index a364a4e..43b5afb 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2010-12-30 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/47060 + * gcc.dg/autopar/pr47060.c: New test. + 2010-12-30 Nicola Pero <nicola.pero@meta-innovation.com> * objc.dg/enhanced-proto-2.m: Updated. diff --git a/gcc/testsuite/gcc.dg/autopar/pr47060.c b/gcc/testsuite/gcc.dg/autopar/pr47060.c new file mode 100644 index 0000000..e8cdfd66 --- /dev/null +++ b/gcc/testsuite/gcc.dg/autopar/pr47060.c @@ -0,0 +1,21 @@ +/* PR tree-optimization/47060 */ +/* { dg-do compile } */ +/* { dg-options "-O -ffast-math -ftree-parallelize-loops=2 -fno-tree-dce" } */ + +struct S +{ + int n; + float *a; +}; + +float +foo (struct S *b) +{ + float c, d; + int j; + for (j = 0; j < b->n; j++) + d += b->a[j]; + for (j = 0; j < b->n; j++) + c += b->a[j]; + return d; +} diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c index 9ece887..96759cb 100644 --- a/gcc/tree-parloops.c +++ b/gcc/tree-parloops.c @@ -201,7 +201,7 @@ reduction_phi (htab_t reduction_list, gimple phi) { struct reduction_info tmpred, *red; - if (htab_elements (reduction_list) == 0) + if (htab_elements (reduction_list) == 0 || phi == NULL) return NULL; tmpred.reduc_phi = phi; |