diff options
| author | nemet <nemet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-01-16 18:56:47 +0000 |
|---|---|---|
| committer | nemet <nemet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-01-16 18:56:47 +0000 |
| commit | 298bbd8dca781f7973acbba05b81225b017d7c17 (patch) | |
| tree | d4ea4ae380071612d851ae5d3fd829977e11de0a /gcc/expmed.c | |
| parent | 641db9ee09e8b03eba4cc769d31b03161826bc1a (diff) | |
| download | gcc-298bbd8dca781f7973acbba05b81225b017d7c17.tar.gz | |
PR target/38554
* expmed.c (expand_shift): With SHIFT_COUNT_TRUNCATED, don't lift
the subreg from a lowpart subreg if it is also casting the value.
testsuite/
PR target/38554
* gcc.c-torture/compile/pr38554.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@143440 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index 9ee5f29883d..da0db3b8347 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -2136,7 +2136,8 @@ expand_shift (enum tree_code code, enum machine_mode mode, rtx shifted, op1 = GEN_INT ((unsigned HOST_WIDE_INT) INTVAL (op1) % GET_MODE_BITSIZE (mode)); else if (GET_CODE (op1) == SUBREG - && subreg_lowpart_p (op1)) + && subreg_lowpart_p (op1) + && INTEGRAL_MODE_P (GET_MODE (SUBREG_REG (op1)))) op1 = SUBREG_REG (op1); } |