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-rw-r--r--gcc/cfgexpand.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c
index 0e9410e..f6da5d6 100644
--- a/gcc/cfgexpand.c
+++ b/gcc/cfgexpand.c
@@ -3320,7 +3320,13 @@ expand_gimple_stmt_1 (gimple stmt)
GET_MODE (target), temp, unsignedp);
}
- convert_move (SUBREG_REG (target), temp, unsignedp);
+ if ((SUBREG_PROMOTED_GET (target) == SRP_SIGNED_AND_UNSIGNED)
+ && (GET_CODE (temp) == SUBREG)
+ && (GET_MODE (target) == GET_MODE (temp))
+ && (GET_MODE (SUBREG_REG (target)) == GET_MODE (SUBREG_REG (temp))))
+ emit_move_insn (SUBREG_REG (target), SUBREG_REG (temp));
+ else
+ convert_move (SUBREG_REG (target), temp, unsignedp);
}
else if (nontemporal && emit_storent_insn (target, temp))
;