1 ; RUN: opt < %s -reassociate -S | FileCheck %s
3 define i64 @multistep1(i64 %a, i64 %b, i64 %c) {
4 ; Check that a*a*b+a*a*c is turned into a*(a*(b+c)).
5 ; CHECK-LABEL: @multistep1(
7 %t1 = mul i64 %a, %t0 ; a*(a*b)
9 %t3 = mul i64 %a, %t2 ; a*(a*c)
10 %t4 = add i64 %t1, %t3
11 ; CHECK-NEXT: add i64 %c, %b
12 ; CHECK-NEXT: mul i64 %tmp{{.*}}, %a
13 ; CHECK-NEXT: mul i64 %tmp{{.*}}, %a
18 define i64 @multistep2(i64 %a, i64 %b, i64 %c, i64 %d) {
19 ; Check that a*b+a*c+d is turned into a*(b+c)+d.
20 ; CHECK-LABEL: @multistep2(
23 %t2 = add i64 %t1, %d ; a*c+d
24 %t3 = add i64 %t0, %t2 ; a*b+(a*c+d)
25 ; CHECK-NEXT: add i64 %c, %b
26 ; CHECK-NEXT: mul i64 %tmp{{.*}}, %a
27 ; CHECK-NEXT: add i64 %tmp{{.*}}, %d