1; RUN: llc -mtriple=aarch64-eabi %s -o - | FileCheck %s 2 3; The llvm.aarch64.rbit intrinsic should be auto-upgraded to the 4; target-independent bitreverse intrinsic. 5 6; CHECK-LABEL: rbit32 7; CHECK: rbit w0, w0 8define i32 @rbit32(i32 %t) { 9entry: 10 %rbit.i = call i32 @llvm.aarch64.rbit.i32(i32 %t) 11 ret i32 %rbit.i 12} 13 14; CHECK-LABEL: rbit64 15; CHECK: rbit x0, x0 16define i64 @rbit64(i64 %t) { 17entry: 18 %rbit.i = call i64 @llvm.aarch64.rbit.i64(i64 %t) 19 ret i64 %rbit.i 20} 21 22declare i64 @llvm.aarch64.rbit.i64(i64) 23declare i32 @llvm.aarch64.rbit.i32(i32) 24 25; CHECK-LABEL: rbit_generic32 26; CHECK: rbit w0, w0 27define i32 @rbit_generic32(i32 %t) { 28entry: 29 %rbit = call i32 @llvm.bitreverse.i32(i32 %t) 30 ret i32 %rbit 31} 32 33; CHECK-LABEL: rbit_generic64 34; CHECK: rbit x0, x0 35define i64 @rbit_generic64(i64 %t) { 36entry: 37 %rbit = call i64 @llvm.bitreverse.i64(i64 %t) 38 ret i64 %rbit 39} 40 41declare i32 @llvm.bitreverse.i32(i32) readnone 42declare i64 @llvm.bitreverse.i64(i64) readnone 43