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| author | Jakub Jelinek <jakub@redhat.com> | 2015-12-10 11:14:38 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2015-12-10 11:14:38 +0100 |
| commit | 1ff0a84c3d3c0e8257a3837bf9f5d7f09f2f131e (patch) | |
| tree | 9f2935aa763d1201e183b766b7a31df4705c7adb /gcc/gimple-fold.c | |
| parent | ee7d29b43faf156f55e55dfcb841fa38da2e855a (diff) | |
| download | gcc-1ff0a84c3d3c0e8257a3837bf9f5d7f09f2f131e.tar.gz | |
re PR middle-end/68785 (valgrind reports issues with folding on x86_64)
PR tree-optimization/68785
* gimple-fold.c (fold_ctor_reference): Pass return value from
native_encode_expr to native_interpret_expr.
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Likewise.
* gcc.dg/pr68785.c: New test.
From-SVN: r231499
Diffstat (limited to 'gcc/gimple-fold.c')
| -rw-r--r-- | gcc/gimple-fold.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index 6ff5e266d42..6f8ec6f90a6 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -5495,9 +5495,10 @@ fold_ctor_reference (tree type, tree ctor, unsigned HOST_WIDE_INT offset, && size <= MAX_BITSIZE_MODE_ANY_MODE) { unsigned char buf[MAX_BITSIZE_MODE_ANY_MODE / BITS_PER_UNIT]; - if (native_encode_expr (ctor, buf, size / BITS_PER_UNIT, - offset / BITS_PER_UNIT) > 0) - return native_interpret_expr (type, buf, size / BITS_PER_UNIT); + int len = native_encode_expr (ctor, buf, size / BITS_PER_UNIT, + offset / BITS_PER_UNIT); + if (len > 0) + return native_interpret_expr (type, buf, len); } if (TREE_CODE (ctor) == CONSTRUCTOR) { |