xref: /llvm-project/llvm/test/Analysis/ValueTracking/pr75505.ll (revision 0df320093155f937ae985847f20e28b790667a9f)
1*0df32009SNikita Popov; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
2*0df32009SNikita Popov; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
3*0df32009SNikita Popov
4*0df32009SNikita Popov; Just make sure that we don't assert.
5*0df32009SNikita Popovdefine i32 @test(<2 x i16> %a, i32 %b) {
6*0df32009SNikita Popov; CHECK-LABEL: define i32 @test(
7*0df32009SNikita Popov; CHECK-SAME: <2 x i16> [[A:%.*]], i32 [[B:%.*]]) {
8*0df32009SNikita Popov; CHECK-NEXT:    [[MUL:%.*]] = mul <2 x i16> [[A]], <i16 -1, i16 poison>
9*0df32009SNikita Popov; CHECK-NEXT:    [[BC:%.*]] = bitcast <2 x i16> [[MUL]] to i32
10*0df32009SNikita Popov; CHECK-NEXT:    [[LSHR:%.*]] = lshr i32 [[B]], [[BC]]
11*0df32009SNikita Popov; CHECK-NEXT:    ret i32 [[LSHR]]
12*0df32009SNikita Popov;
13*0df32009SNikita Popov  %mul = mul <2 x i16> %a, <i16 -1, i16 poison>
14*0df32009SNikita Popov  %bc = bitcast <2 x i16> %mul to i32
15*0df32009SNikita Popov  %lshr = lshr i32 %b, %bc
16*0df32009SNikita Popov  ret i32 %lshr
17*0df32009SNikita Popov}
18