| ; RUN: llc -mtriple=armv8-eabi %s -o - | FileCheck %s |
| |
| ; CHECK-LABEL: rbit |
| ; CHECK: rbit r0, r0 |
| define i32 @rbit(i32 %t) { |
| entry: |
| %rbit = call i32 @llvm.arm.rbit(i32 %t) |
| ret i32 %rbit |
| } |
| |
| ; CHECK-LABEL: rbit_constant |
| ; CHECK: mov r0, #0 |
| ; CHECK: rbit r0, r0 |
| define i32 @rbit_constant() { |
| entry: |
| %rbit.i = call i32 @llvm.arm.rbit(i32 0) |
| ret i32 %rbit.i |
| } |
| |
| declare i32 @llvm.arm.rbit(i32) |
| |
| declare i32 @llvm.bitreverse.i32(i32) readnone |
| |
| ; CHECK-LABEL: rbit_generic |
| ; CHECK: rbit r0, r0 |
| define i32 @rbit_generic(i32 %t) { |
| entry: |
| %rbit = call i32 @llvm.bitreverse.i32(i32 %t) |
| ret i32 %rbit |
| } |
| |
