change the costs for multiplication in the size case to reflect the 70% rule

[r20280]

diff --git a/ir/be/ia32/ia32_architecture.c b/ir/be/ia32/ia32_architecture.c
index d8d5ff9..851a807 100644 (file)
--- a/ir/be/ia32/ia32_architecture.c
+++ b/ir/be/ia32/ia32_architecture.c
@@ -232,7 +232,7 @@ static const insn_const size_cost = {
        2,   /* cost of an add instruction */
        3,   /* cost of a lea instruction */
        3,   /* cost of a constant shift instruction */
-       3,   /* starting cost of a multiply instruction */
+       4,   /* starting cost of a multiply instruction */
        0,   /* cost of multiply for every set bit */
        0,   /* logarithm for alignment of function labels */
        0,   /* logarithm for alignment of loops labels */