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| author | Fariborz Jahanian <fjahanian@apple.com> | 2004-11-10 17:17:48 +0000 |
|---|---|---|
| committer | Fariborz Jahanian <fjahanian@gcc.gnu.org> | 2004-11-10 17:17:48 +0000 |
| commit | d05f9c39a3a6e7d9a95de9c134d13c1a34f1c70d (patch) | |
| tree | deab44c9f7d8b1542981732eb0d8ef16f602e9a1 /gcc | |
| parent | d746e87d41548db18c07a1e400f3e446c71f27b4 (diff) | |
| download | gcc-d05f9c39a3a6e7d9a95de9c134d13c1a34f1c70d.zip gcc-d05f9c39a3a6e7d9a95de9c134d13c1a34f1c70d.tar.gz gcc-d05f9c39a3a6e7d9a95de9c134d13c1a34f1c70d.tar.bz2 | |
re PR tree-optimization/17892 (gcc-4.0 should not reassociate floating point add or multiplication)
Fix for PR tree-optimization/17892.
OKed by Roger Sayle.
From-SVN: r90395
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/tree-ssa-dom.c | 3 |
3 files changed, 13 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 0bacc35..7d84272 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2004-11-10 Fariborz Jahanian <fjahanian@apple.com> + + PR tree-optimization/17892 + * tree-ssa-dom.c (unsafe_associative_fp_binop): Add test for + MINUS_EXPR operator. + 2004-11-10 James A. Morrison <phython@gcc.gnu.org> PR target/18230 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 427d8f4..b87577d 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2004-11-10 Fariborz Jahanian <fjahanian@apple.com> + + * gcc.c-torture/execute/ieee/unsafe-fp-assoc-1.c: + New test for PR tree-optimization/17892. + 2004-11-09 Mark Mitchell <mark@codesourcery.com> PR c++/18369 diff --git a/gcc/tree-ssa-dom.c b/gcc/tree-ssa-dom.c index a7f0aaf..41138d8 100644 --- a/gcc/tree-ssa-dom.c +++ b/gcc/tree-ssa-dom.c @@ -1644,7 +1644,8 @@ unsafe_associative_fp_binop (tree exp) { enum tree_code code = TREE_CODE (exp); return !(!flag_unsafe_math_optimizations - && (code == MULT_EXPR || code == PLUS_EXPR) + && (code == MULT_EXPR || code == PLUS_EXPR + || code == MINUS_EXPR) && FLOAT_TYPE_P (TREE_TYPE (exp))); } |