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| author | Jakub Jelinek <jakub@redhat.com> | 2014-01-13 20:14:03 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2014-01-13 20:14:03 +0100 |
| commit | 19e51b409e89cb13f388bf2442e3d00b904dddde (patch) | |
| tree | 3287f7d4ff23c203c29bc715bc7a4141b0081b4c /gcc/gimple-fold.h | |
| parent | cd794ed4c2424b3381a5fb09c6f08e53ae919a8a (diff) | |
| download | gcc-19e51b409e89cb13f388bf2442e3d00b904dddde.zip gcc-19e51b409e89cb13f388bf2442e3d00b904dddde.tar.gz gcc-19e51b409e89cb13f388bf2442e3d00b904dddde.tar.bz2 | |
re PR tree-optimization/59387 (wrong code (hangs) at -Os on x86_64-linux-gnu)
PR tree-optimization/59387
* tree-scalar-evolution.c: Include gimple-fold.h and gimplify-me.h.
(scev_const_prop): If folded_casts and type has undefined overflow,
use force_gimple_operand instead of force_gimple_operand_gsi and
for each added stmt if it is assign with
arith_code_with_undefined_signed_overflow, call
rewrite_to_defined_overflow.
* tree-ssa-loop-im.c: Don't include gimplify-me.h, include
gimple-fold.h instead.
(arith_code_with_undefined_signed_overflow,
rewrite_to_defined_overflow): Moved to ...
* gimple-fold.c (arith_code_with_undefined_signed_overflow,
rewrite_to_defined_overflow): ... here. No longer static.
Include gimplify-me.h.
* gimple-fold.h (arith_code_with_undefined_signed_overflow,
rewrite_to_defined_overflow): New prototypes.
* gcc.c-torture/execute/pr59387.c: New test.
From-SVN: r206583
Diffstat (limited to 'gcc/gimple-fold.h')
| -rw-r--r-- | gcc/gimple-fold.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/gimple-fold.h b/gcc/gimple-fold.h index a96be63..886cd02 100644 --- a/gcc/gimple-fold.h +++ b/gcc/gimple-fold.h @@ -40,5 +40,7 @@ extern tree fold_const_aggregate_ref (tree); extern tree gimple_get_virt_method_for_binfo (HOST_WIDE_INT, tree); extern bool gimple_val_nonnegative_real_p (tree); extern tree gimple_fold_indirect_ref (tree); +extern bool arith_code_with_undefined_signed_overflow (tree_code); +extern gimple_seq rewrite_to_defined_overflow (gimple); #endif /* GCC_GIMPLE_FOLD_H */ |