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| author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-02-27 17:46:35 +0000 |
|---|---|---|
| committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-02-27 17:46:35 +0000 |
| commit | da052aaf9680827a09243f4aea51a0f6efe9e198 (patch) | |
| tree | 99d4f9c0c06e462c5cf0517920822bea29b518e2 /gcc/combine.c | |
| parent | 15bfe2aefcd27302bd63ea06c2c42a8a29b1be6f (diff) | |
| download | gcc-da052aaf9680827a09243f4aea51a0f6efe9e198.tar.gz | |
Patch for PR 9255
* combine.c (simplify_comparison): Require integral mode when
permuting SUBREG with AND.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@63514 138bc75d-0d04-0410-961f-82ee72b054a4
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 fe5cce50f24..50b1876eb58 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 |