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| author | Marek Polacek <polacek@redhat.com> | 2014-01-17 14:51:56 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2014-01-17 14:51:56 +0000 |
| commit | 30078c0a6521519cd18090edb554c62e8d9c1a8a (patch) | |
| tree | 07068f367f80f8bc0e8385c4425d17154f983d33 | |
| parent | 14379e666810cff69f620fbad5a44ce2d68486c3 (diff) | |
| download | gcc-30078c0a6521519cd18090edb554c62e8d9c1a8a.zip gcc-30078c0a6521519cd18090edb554c62e8d9c1a8a.tar.gz gcc-30078c0a6521519cd18090edb554c62e8d9c1a8a.tar.bz2 | |
re PR c/58346 (ICE with SIGFPE at -O1 and above on x86_64-linux-gnu (affecting trunk, 4.8, 4.7, and 4.6))
PR c/58346
* gimple-fold.c (fold_array_ctor_reference): Don't fold if element
size is zero.
testsuite/
* gcc.dg/pr58346.c: New test.
From-SVN: r206715
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gimple-fold.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr58346.c | 19 |
4 files changed, 32 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 870d232..21b5971 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2014-01-17 Marek Polacek <polacek@redhat.com> + + PR c/58346 + * gimple-fold.c (fold_array_ctor_reference): Don't fold if element + size is zero. + 2014-01-17 Richard Biener <rguenther@suse.de> PR tree-optimization/46590 diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index 5dc27e1..bace6f8 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -2940,7 +2940,8 @@ fold_array_ctor_reference (tree type, tree ctor, be larger than size of array element. */ if (!TYPE_SIZE_UNIT (type) || TREE_CODE (TYPE_SIZE_UNIT (type)) != INTEGER_CST - || elt_size.slt (tree_to_double_int (TYPE_SIZE_UNIT (type)))) + || elt_size.slt (tree_to_double_int (TYPE_SIZE_UNIT (type))) + || elt_size.is_zero ()) return NULL_TREE; /* Compute the array index we look for. */ diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index d8b972b..a78e915 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2014-01-17 Marek Polacek <polacek@redhat.com> + + PR c/58346 + * gcc.dg/pr58346.c: New test. + 2014-01-17 Jakub Jelinek <jakub@redhat.com> PR testsuite/58776 diff --git a/gcc/testsuite/gcc.dg/pr58346.c b/gcc/testsuite/gcc.dg/pr58346.c new file mode 100644 index 0000000..b7940f6 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr58346.c @@ -0,0 +1,19 @@ +/* PR tree-optimization/58346 */ +/* { dg-do compile } */ +/* { dg-options "-O" } */ + +struct U {}; +static struct U b[1] = { }; +extern void bar (struct U); + +void +foo (void) +{ + bar (b[0]); +} + +void +baz (void) +{ + foo (); +} |