diff options
| author | Jim Wilson <wilson@gcc.gnu.org> | 1996-01-17 15:56:06 -0800 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1996-01-17 15:56:06 -0800 |
| commit | 34ea783bd582e392bb7e1b7ee5435601d528ab03 (patch) | |
| tree | f91a7981990bc1c46f9037e4de0902487ac330c6 /gcc/expmed.c | |
| parent | b52ef430a32e02e8936dde2d4d2d6ec897806c86 (diff) | |
| download | gcc-34ea783bd582e392bb7e1b7ee5435601d528ab03.tar.gz | |
(extract_bit_field): For multi-word bitfield, clobber target before
storing to it.
From-SVN: r11059
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index e79a8e2a49b..dbd7eb2bb4f 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -965,6 +965,9 @@ extract_bit_field (str_rtx, bitsize, bitnum, unsignedp, if (target == 0 || GET_CODE (target) != REG) target = gen_reg_rtx (mode); + /* Indicate for flow that the entire target reg is being set. */ + emit_insn (gen_rtx (CLOBBER, VOIDmode, target)); + for (i = 0; i < nwords; i++) { /* If I is 0, use the low-order word in both field and target; |