1; Test 32-bit byteswaps from registers to memory. 2; 3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s 4 5declare i32 @llvm.bswap.i32(i32 %a) 6 7; Check STRV with no displacement. 8define void @f1(i32 *%dst, i32 %a) { 9; CHECK-LABEL: f1: 10; CHECK: strv %r3, 0(%r2) 11; CHECK: br %r14 12 %swapped = call i32 @llvm.bswap.i32(i32 %a) 13 store i32 %swapped, i32 *%dst 14 ret void 15} 16 17; Check the high end of the aligned STRV range. 18define void @f2(i32 *%dst, i32 %a) { 19; CHECK-LABEL: f2: 20; CHECK: strv %r3, 524284(%r2) 21; CHECK: br %r14 22 %ptr = getelementptr i32, i32 *%dst, i64 131071 23 %swapped = call i32 @llvm.bswap.i32(i32 %a) 24 store i32 %swapped, i32 *%ptr 25 ret void 26} 27 28; Check the next word up, which needs separate address logic. 29; Other sequences besides this one would be OK. 30define void @f3(i32 *%dst, i32 %a) { 31; CHECK-LABEL: f3: 32; CHECK: agfi %r2, 524288 33; CHECK: strv %r3, 0(%r2) 34; CHECK: br %r14 35 %ptr = getelementptr i32, i32 *%dst, i64 131072 36 %swapped = call i32 @llvm.bswap.i32(i32 %a) 37 store i32 %swapped, i32 *%ptr 38 ret void 39} 40 41; Check the high end of the negative aligned STRV range. 42define void @f4(i32 *%dst, i32 %a) { 43; CHECK-LABEL: f4: 44; CHECK: strv %r3, -4(%r2) 45; CHECK: br %r14 46 %ptr = getelementptr i32, i32 *%dst, i64 -1 47 %swapped = call i32 @llvm.bswap.i32(i32 %a) 48 store i32 %swapped, i32 *%ptr 49 ret void 50} 51 52; Check the low end of the STRV range. 53define void @f5(i32 *%dst, i32 %a) { 54; CHECK-LABEL: f5: 55; CHECK: strv %r3, -524288(%r2) 56; CHECK: br %r14 57 %ptr = getelementptr i32, i32 *%dst, i64 -131072 58 %swapped = call i32 @llvm.bswap.i32(i32 %a) 59 store i32 %swapped, i32 *%ptr 60 ret void 61} 62 63; Check the next word down, which needs separate address logic. 64; Other sequences besides this one would be OK. 65define void @f6(i32 *%dst, i32 %a) { 66; CHECK-LABEL: f6: 67; CHECK: agfi %r2, -524292 68; CHECK: strv %r3, 0(%r2) 69; CHECK: br %r14 70 %ptr = getelementptr i32, i32 *%dst, i64 -131073 71 %swapped = call i32 @llvm.bswap.i32(i32 %a) 72 store i32 %swapped, i32 *%ptr 73 ret void 74} 75 76; Check that STRV allows an index. 77define void @f7(i64 %src, i64 %index, i32 %a) { 78; CHECK-LABEL: f7: 79; CHECK: strv %r4, 524287({{%r3,%r2|%r2,%r3}}) 80; CHECK: br %r14 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 86 ret void 87} 88 89