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| author | Uros Bizjak <ubizjak@gmail.com> | 2010-08-05 14:03:36 +0200 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2010-08-05 14:03:36 +0200 |
| commit | 4caa21a13b14b333714d1f8dcce3adefe6fe910e (patch) | |
| tree | e6146abcc03ac16fe3abb84343a95270707d3b41 | |
| parent | e2534738ee23d66ecbbbc9bacce6bc19395045c5 (diff) | |
| download | gcc-4caa21a13b14b333714d1f8dcce3adefe6fe910e.tar.gz | |
expmed.c (expand_mult_const): Expand shift into temporary.
* expmed.c (expand_mult_const) <case alg_shift>: Expand shift into
temporary. Emit move from temporary to accum, so REG_EQUAL note will
be attached to this insn in correct mode.
From-SVN: r162910
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/expmed.c | 8 |
2 files changed, 11 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3456501c8f9..0b0d4181057 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2010-08-05 Uros Bizjak <ubizjak@gmail.com> + * expmed.c (expand_mult_const) <case alg_shift>: Expand shift into + temporary. Emit move from temporary to accum, so REG_EQUAL note will + be attached to this insn in correct mode. + +2010-08-05 Uros Bizjak <ubizjak@gmail.com> + * config/i386/i386.c (ix86_decompose_address): Check for SI_REG using REGNO of base_reg directly. diff --git a/gcc/expmed.c b/gcc/expmed.c index ddace9f2e39..9aa5ff617c5 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -2904,9 +2904,11 @@ expand_mult_const (enum machine_mode mode, rtx op0, HOST_WIDE_INT val, switch (alg->op[opno]) { case alg_shift: - accum = expand_shift (LSHIFT_EXPR, mode, accum, - build_int_cst (NULL_TREE, log), - NULL_RTX, 0); + tem = expand_shift (LSHIFT_EXPR, mode, accum, + build_int_cst (NULL_TREE, log), + NULL_RTX, 0); + /* REG_EQUAL note will be attached to the following insn. */ + emit_move_insn (accum, tem); val_so_far <<= log; break; |