1 ; Test 32-bit byteswaps from registers to memory.
3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
5 declare i32 @llvm.bswap.i32(i32 %a)
7 ; Check STRV with no displacement.
8 define void @f1(i32 *%dst, i32 %a) {
10 ; CHECK: strv %r3, 0(%r2)
12 %swapped = call i32 @llvm.bswap.i32(i32 %a)
13 store i32 %swapped, i32 *%dst
17 ; Check the high end of the aligned STRV range.
18 define void @f2(i32 *%dst, i32 %a) {
20 ; CHECK: strv %r3, 524284(%r2)
22 %ptr = getelementptr i32, i32 *%dst, i64 131071
23 %swapped = call i32 @llvm.bswap.i32(i32 %a)
24 store i32 %swapped, i32 *%ptr
28 ; Check the next word up, which needs separate address logic.
29 ; Other sequences besides this one would be OK.
30 define void @f3(i32 *%dst, i32 %a) {
32 ; CHECK: agfi %r2, 524288
33 ; CHECK: strv %r3, 0(%r2)
35 %ptr = getelementptr i32, i32 *%dst, i64 131072
36 %swapped = call i32 @llvm.bswap.i32(i32 %a)
37 store i32 %swapped, i32 *%ptr
41 ; Check the high end of the negative aligned STRV range.
42 define void @f4(i32 *%dst, i32 %a) {
44 ; CHECK: strv %r3, -4(%r2)
46 %ptr = getelementptr i32, i32 *%dst, i64 -1
47 %swapped = call i32 @llvm.bswap.i32(i32 %a)
48 store i32 %swapped, i32 *%ptr
52 ; Check the low end of the STRV range.
53 define void @f5(i32 *%dst, i32 %a) {
55 ; CHECK: strv %r3, -524288(%r2)
57 %ptr = getelementptr i32, i32 *%dst, i64 -131072
58 %swapped = call i32 @llvm.bswap.i32(i32 %a)
59 store i32 %swapped, i32 *%ptr
63 ; Check the next word down, which needs separate address logic.
64 ; Other sequences besides this one would be OK.
65 define void @f6(i32 *%dst, i32 %a) {
67 ; CHECK: agfi %r2, -524292
68 ; CHECK: strv %r3, 0(%r2)
70 %ptr = getelementptr i32, i32 *%dst, i64 -131073
71 %swapped = call i32 @llvm.bswap.i32(i32 %a)
72 store i32 %swapped, i32 *%ptr
76 ; Check that STRV allows an index.
77 define void @f7(i64 %src, i64 %index, i32 %a) {
79 ; CHECK: strv %r4, 524287({{%r3,%r2|%r2,%r3}})
81 %add1 = add i64 %src, %index
82 %add2 = add i64 %add1, 524287
83 %ptr = inttoptr i64 %add2 to i32 *
84 %swapped = call i32 @llvm.bswap.i32(i32 %a)
85 store i32 %swapped, i32 *%ptr