1 ; Test byteswaps between registers. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5 declare i32 @llvm.bswap.i32(i32 %a) 6 declare i64 @llvm.bswap.i64(i64 %a) 7 8 ; Check 32-bit register-to-register byteswaps. 9 define i32 @f1(i32 %a) { 10 ; CHECK-LABEL: f1: 11 ; CHECK: lrvr [[REGISTER:%r[0-5]]], %r2 12 ; CHECK: br %r14 13 %swapped = call i32 @llvm.bswap.i32(i32 %a) 14 ret i32 %swapped 15 } 16 17 ; Check 64-bit register-to-register byteswaps. 18 define i64 @f2(i64 %a) { 19 ; CHECK-LABEL: f2: 20 ; CHECK: lrvgr %r2, %r2 21 ; CHECK: br %r14 22 %swapped = call i64 @llvm.bswap.i64(i64 %a) 23 ret i64 %swapped 24 } 25
