| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instsimplify -S | FileCheck %s |
| |
| ; This tests checks optimization consistency for scalar and vector code. |
| ; If m_Zero() is able to match a vector undef, but not a scalar undef, |
| ; the two cases will simplify differently. |
| |
| define i32 @test_scalar(i32 %a, i1 %b) { |
| ; CHECK-LABEL: @test_scalar( |
| ; CHECK-NEXT: ret i32 undef |
| ; |
| %c = sext i1 %b to i32 |
| %d = ashr i32 undef, %c |
| ret i32 %d |
| } |
| |
| define <2 x i32> @test_vector(<2 x i32> %a, <2 x i1> %b) { |
| ; CHECK-LABEL: @test_vector( |
| ; CHECK-NEXT: ret <2 x i32> undef |
| ; |
| %c = sext <2 x i1> %b to <2 x i32> |
| %d = ashr <2 x i32> undef, %c |
| ret <2 x i32> %d |
| } |
| |