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-rw-r--r--gcc/loop.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/loop.c b/gcc/loop.c
index 5db0a9c..c8b0954 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -6221,7 +6221,18 @@ express_from (g1, g2)
if (add == const0_rtx)
return mult;
else
- return gen_rtx_PLUS (g2->mode, mult, add);
+ {
+ if (GET_CODE (add) == PLUS
+ && CONSTANT_P (XEXP (add, 1)))
+ {
+ rtx tem = XEXP (add, 1);
+ mult = gen_rtx_PLUS (g2->mode, mult, XEXP (add, 0));
+ add = tem;
+ }
+
+ return gen_rtx_PLUS (g2->mode, mult, add);
+ }
+
}
/* Return an rtx, if any, that expresses giv G2 as a function of the register