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| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-02-21 08:09:08 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-02-21 08:09:08 +0000 |
| commit | ad4ecfda33b1120e3a632c9d29015496e5b923e2 (patch) | |
| tree | fa4db98c807b982eea6a11176bacb3547da1b224 /gcc/combine.c | |
| parent | 667c08ce28c36333d46a8a25d5dcdb93b028a556 (diff) | |
| download | gcc-ad4ecfda33b1120e3a632c9d29015496e5b923e2.tar.gz | |
PR middle-end/26379
* combine.c (simplify_shift_const_1): Disable nested shifts
optimization for vector shifts.
* gcc.target/i386/mmx-7.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111328 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 96ebd208a82..9240b32568a 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -8737,7 +8737,8 @@ simplify_shift_const_1 (enum rtx_code code, enum machine_mode result_mode, && INTVAL (XEXP (varop, 1)) >= 0 && INTVAL (XEXP (varop, 1)) < GET_MODE_BITSIZE (GET_MODE (varop)) && GET_MODE_BITSIZE (result_mode) <= HOST_BITS_PER_WIDE_INT - && GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT) + && GET_MODE_BITSIZE (mode) <= HOST_BITS_PER_WIDE_INT + && !VECTOR_MODE_P (result_mode)) { enum rtx_code first_code = GET_CODE (varop); unsigned int first_count = INTVAL (XEXP (varop, 1)); |