1; Instcombine was missing a test that caused it to make illegal transformations
2; sometimes. In this case, it transforms the sub into an add:
3; RUN: opt < %s -instcombine -S | grep sub
4;
5define i32 @test(i32 %i, i32 %j) {
6 %A = mul i32 %i, %j
7 %B = sub i32 2, %A
8 ret i32 %B
9}
10
11