| Ulrich Weigand | 9e3577f | 2013-05-06 16:17:29 +0000 | [diff] [blame] | 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) { |
| Stephen Lin | d24ab20 | 2013-07-14 06:24:09 +0000 | [diff] [blame] | 10 | ; CHECK-LABEL: f1: |
| Ulrich Weigand | 9e3577f | 2013-05-06 16:17:29 +0000 | [diff] [blame] | 11 | ; CHECK: lrvr [[REGISTER:%r[0-5]]], %r2 |
| Richard Sandiford | ec8693d | 2013-06-27 09:49:34 +0000 | [diff] [blame] | 12 | ; CHECK: br %r14 |
| Ulrich Weigand | 9e3577f | 2013-05-06 16:17:29 +0000 | [diff] [blame] | 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) { |
| Stephen Lin | d24ab20 | 2013-07-14 06:24:09 +0000 | [diff] [blame] | 19 | ; CHECK-LABEL: f2: |
| Ulrich Weigand | 9e3577f | 2013-05-06 16:17:29 +0000 | [diff] [blame] | 20 | ; CHECK: lrvgr %r2, %r2 |
| Richard Sandiford | ec8693d | 2013-06-27 09:49:34 +0000 | [diff] [blame] | 21 | ; CHECK: br %r14 |
| Ulrich Weigand | 9e3577f | 2013-05-06 16:17:29 +0000 | [diff] [blame] | 22 | %swapped = call i64 @llvm.bswap.i64(i64 %a) |
| 23 | ret i64 %swapped |
| 24 | } |