1 ; With sub reassociation, constant folding can eliminate the two 12 constants.
3 ; RUN: opt < %s -reassociate -constprop -dce -S | not grep 12
5 define i32 @test(i32 %A, i32 %B, i32 %C, i32 %D) {
6 %M = add i32 %A, 12 ; <i32> [#uses=1]
7 %N = add i32 %M, %B ; <i32> [#uses=1]
8 %O = add i32 %N, %C ; <i32> [#uses=1]
9 %P = sub i32 %D, %O ; <i32> [#uses=1]
10 %Q = add i32 %P, 12 ; <i32> [#uses=1]