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-rw-r--r--gcc/regrename.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/regrename.c b/gcc/regrename.c
index d2afeeca26c..5f41f6bba0c 100644
--- a/gcc/regrename.c
+++ b/gcc/regrename.c
@@ -671,7 +671,7 @@ rr_replace_reg (x, reg_use, reg_sub, replace_type, insn, status)
replace_type, insn, status);
else if (replace_type == SOURCE)
{
- unsigned int dest_subregno;
+ unsigned int dest_subregno = 0;
int had_subreg = GET_CODE (SET_DEST (x)) == SUBREG;
if (had_subreg)
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