| ; RUN: opt < %s -instcombine -S | FileCheck %s | |
| define i32 @test1(i32 %p) { | |
| ; CHECK-LABEL: @test1 | |
| ; CHECK-NEXT: ret i32 %p | |
| %a = call i32 @llvm.bitreverse.i32(i32 %p) | |
| %b = call i32 @llvm.bitreverse.i32(i32 %a) | |
| ret i32 %b | |
| } | |
| declare i32 @llvm.bitreverse.i32(i32) readnone |