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| author | James E Wilson <wilson@tuliptree.org> | 2003-02-27 09:46:35 -0800 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 2003-02-27 09:46:35 -0800 |
| commit | 678e68fcfdf307d5a2d2bdc1603f1cabb5a7c614 (patch) | |
| tree | 99d4f9c0c06e462c5cf0517920822bea29b518e2 /gcc/combine.c | |
| parent | 4ffbd0777c9cc458ce64322e0be0c6f3840ce5b4 (diff) | |
| download | gcc-678e68fcfdf307d5a2d2bdc1603f1cabb5a7c614.zip gcc-678e68fcfdf307d5a2d2bdc1603f1cabb5a7c614.tar.gz gcc-678e68fcfdf307d5a2d2bdc1603f1cabb5a7c614.tar.bz2 | |
Patch for PR 9255
Patch for PR 9255
* combine.c (simplify_comparison): Require integral mode when
permuting SUBREG with AND.
From-SVN: r63514
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index fe5cce5..50b1876 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -11130,6 +11130,9 @@ simplify_comparison (code, pop0, pop1) represents the low part, permute the SUBREG and the AND and try again. */ if (GET_CODE (XEXP (op0, 0)) == SUBREG + /* Require an integral mode, to avoid creating something like + (AND:SF ...). */ + && SCALAR_INT_MODE_P (GET_MODE (SUBREG_REG (XEXP (op0, 0)))) /* It is unsafe to commute the AND into the SUBREG if the SUBREG is paradoxical and WORD_REGISTER_OPERATIONS is not defined. As originally written the upper bits have a defined value |