1 ; RUN: llc -mtriple=armv8-eabi %s -o - | FileCheck %s 2 3 ; CHECK-LABEL: rbit 4 ; CHECK: rbit r0, r0 5 define i32 @rbit(i32 %t) { 6 entry: 7 %rbit = call i32 @llvm.arm.rbit(i32 %t) 8 ret i32 %rbit 9 } 10 11 ; CHECK-LABEL: rbit_constant 12 ; CHECK: mov r0, #0 13 ; CHECK: rbit r0, r0 14 define i32 @rbit_constant() { 15 entry: 16 %rbit.i = call i32 @llvm.arm.rbit(i32 0) 17 ret i32 %rbit.i 18 } 19 20 declare i32 @llvm.arm.rbit(i32) 21 22 declare i32 @llvm.bitreverse.i32(i32) readnone 23 24 ; CHECK-LABEL: rbit_generic 25 ; CHECK: rbit r0, r0 26 define i32 @rbit_generic(i32 %t) { 27 entry: 28 %rbit = call i32 @llvm.bitreverse.i32(i32 %t) 29 ret i32 %rbit 30 } 31 32
