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| author | Richard Biener <rguenther@suse.de> | 2018-10-23 09:36:13 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2018-10-23 09:36:13 +0000 |
| commit | b1a5c719518cffabfcd81a87518d0c82ee40a3da (patch) | |
| tree | 20e26e91eaaa5c60a02ad4902f94e936207c7991 /gcc/tree-ssa-copy.c | |
| parent | 20e363e4927ac76d314bd511bc726eb71d65d70f (diff) | |
| download | gcc-b1a5c719518cffabfcd81a87518d0c82ee40a3da.zip gcc-b1a5c719518cffabfcd81a87518d0c82ee40a3da.tar.gz gcc-b1a5c719518cffabfcd81a87518d0c82ee40a3da.tar.bz2 | |
re PR tree-optimization/87700 (Compile time hog w/ -O1)
2018-10-23 Richard Biener <rguenther@suse.de>
PR tree-optimization/87700
* tree-ssa-copy.c (set_copy_of_val): Fix change detection logic.
* gcc.dg/torture/pr87700.c: New testcase.
From-SVN: r265418
Diffstat (limited to 'gcc/tree-ssa-copy.c')
| -rw-r--r-- | gcc/tree-ssa-copy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-ssa-copy.c b/gcc/tree-ssa-copy.c index 0c667da..b526758 100644 --- a/gcc/tree-ssa-copy.c +++ b/gcc/tree-ssa-copy.c @@ -155,7 +155,7 @@ set_copy_of_val (tree var, tree val) copy_of[ver].value = val; if (old != val - || (val && !operand_equal_p (old, val, 0))) + && (!old || !operand_equal_p (old, val, 0))) return true; return false; |