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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/expmed.c8
2 files changed, 11 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3456501..0b0d418 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 ddace9f..9aa5ff6 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;