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authorRoger Sayle <sayle@gcc.gnu.org>2003-02-20 22:29:06 +0000
committerRoger Sayle <sayle@gcc.gnu.org>2003-02-20 22:29:06 +0000
commitfd7acc3008b8e4a34cf2ba99a90dcaa98a0049e5 (patch)
tree06eaebd0cb7923db0f1b3bb0d7fc3f91935bd19f /gcc/explow.c
parent4876b2b427de2df3c92aee16b7fbd7348022026f (diff)
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* explow.c (force_reg): Avoid useless REG_EQUAL notes.
From-SVN: r63187
Diffstat (limited to 'gcc/explow.c')
-rw-r--r--gcc/explow.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/explow.c b/gcc/explow.c
index df5bcf6..fb13368 100644
--- a/gcc/explow.c
+++ b/gcc/explow.c
@@ -775,7 +775,8 @@ force_reg (mode, x)
if INSN set something else (such as a SUBREG of TEMP). */
if (CONSTANT_P (x)
&& (set = single_set (insn)) != 0
- && SET_DEST (set) == temp)
+ && SET_DEST (set) == temp
+ && ! rtx_equal_p (x, SET_SRC (set)))
set_unique_reg_note (insn, REG_EQUAL, x);
return temp;