From 1ff0a84c3d3c0e8257a3837bf9f5d7f09f2f131e Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 10 Dec 2015 11:14:38 +0100 Subject: 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 --- gcc/gimple-fold.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'gcc/gimple-fold.c') 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) { -- cgit v1.2.1