; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 ; RUN: opt < %s -passes=reassociate,instcombine -S | FileCheck %s ; With shl->mul reassociation, we can see that this is (shl A, 9) * A define i32 @test(i32 %A) { ; CHECK-LABEL: define i32 @test( ; CHECK-SAME: i32 [[A:%.*]]) { ; CHECK-NEXT: [[Y:%.*]] = shl i32 [[A]], 9 ; CHECK-NEXT: [[Z:%.*]] = mul i32 [[Y]], [[A]] ; CHECK-NEXT: ret i32 [[Z]] ; %X = shl i32 %A, 5 ; [#uses=1] %Y = shl i32 %A, 4 ; [#uses=1] %Z = mul i32 %Y, %X ; [#uses=1] ret i32 %Z }