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| author | Jeff Law <law@redhat.com> | 2015-04-20 11:13:52 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 2015-04-20 11:13:52 -0600 |
| commit | 6581c1cffb859a2d8808f39f4bf1c94d5a638e0b (patch) | |
| tree | aec091096fa8a09febba266c0e554df6c5a823ba /gcc/tree-ssa-threadupdate.c | |
| parent | 06aca1d5db0b88e8b6d1785c39ea2bff22d53569 (diff) | |
| download | gcc-6581c1cffb859a2d8808f39f4bf1c94d5a638e0b.zip gcc-6581c1cffb859a2d8808f39f4bf1c94d5a638e0b.tar.gz gcc-6581c1cffb859a2d8808f39f4bf1c94d5a638e0b.tar.bz2 | |
re PR tree-optimization/65658 (Jump threading too pessimistic when optimizing for size)
PR tree-optimization/65658
* tree-ssa-threadupdate.c (redirection_block_p): Ignore clobber
statements too.
PR tree-optimization/65658
* gcc.dg/pr65658.c: New test.
From-SVN: r222242
Diffstat (limited to 'gcc/tree-ssa-threadupdate.c')
| -rw-r--r-- | gcc/tree-ssa-threadupdate.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-ssa-threadupdate.c b/gcc/tree-ssa-threadupdate.c index 709b16e..9f263bd 100644 --- a/gcc/tree-ssa-threadupdate.c +++ b/gcc/tree-ssa-threadupdate.c @@ -1449,7 +1449,9 @@ redirection_block_p (basic_block bb) while (!gsi_end_p (gsi) && (gimple_code (gsi_stmt (gsi)) == GIMPLE_LABEL || is_gimple_debug (gsi_stmt (gsi)) - || gimple_nop_p (gsi_stmt (gsi)))) + || gimple_nop_p (gsi_stmt (gsi)) + || (gimple_code (gsi_stmt (gsi)) == GIMPLE_ASSIGN + && gimple_clobber_p (gsi_stmt (gsi))))) gsi_next (&gsi); /* Check if this is an empty block. */ |