a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
89 lines
2.3 KiB
LLVM
89 lines
2.3 KiB
LLVM
; Test 64-bit byteswaps from registers to memory.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare i64 @llvm.bswap.i64(i64 %a)
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; Check STRVG with no displacement.
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define void @f1(ptr %dst, i64 %a) {
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; CHECK-LABEL: f1:
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; CHECK: strvg %r3, 0(%r2)
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; CHECK: br %r14
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%swapped = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %swapped, ptr %dst
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ret void
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}
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; Check the high end of the aligned STRVG range.
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define void @f2(ptr %dst, i64 %a) {
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; CHECK-LABEL: f2:
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; CHECK: strvg %r3, 524280(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %dst, i64 65535
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%swapped = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %swapped, ptr %ptr
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ret void
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}
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; Check the next doubleword up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define void @f3(ptr %dst, i64 %a) {
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; CHECK-LABEL: f3:
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; CHECK: agfi %r2, 524288
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; CHECK: strvg %r3, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %dst, i64 65536
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%swapped = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %swapped, ptr %ptr
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ret void
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}
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; Check the high end of the negative aligned STRVG range.
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define void @f4(ptr %dst, i64 %a) {
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; CHECK-LABEL: f4:
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; CHECK: strvg %r3, -8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %dst, i64 -1
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%swapped = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %swapped, ptr %ptr
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ret void
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}
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; Check the low end of the STRVG range.
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define void @f5(ptr %dst, i64 %a) {
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; CHECK-LABEL: f5:
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; CHECK: strvg %r3, -524288(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %dst, i64 -65536
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%swapped = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %swapped, ptr %ptr
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ret void
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}
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; Check the next doubleword down, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define void @f6(ptr %dst, i64 %a) {
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; CHECK-LABEL: f6:
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; CHECK: agfi %r2, -524296
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; CHECK: strvg %r3, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i64, ptr %dst, i64 -65537
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%swapped = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %swapped, ptr %ptr
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ret void
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}
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; Check that STRVG allows an index.
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define void @f7(i64 %src, i64 %index, i64 %a) {
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; CHECK-LABEL: f7:
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; CHECK: strvg %r4, 524287({{%r3,%r2|%r2,%r3}})
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; CHECK: br %r14
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%add1 = add i64 %src, %index
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%add2 = add i64 %add1, 524287
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%ptr = inttoptr i64 %add2 to ptr
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%swapped = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %swapped, ptr %ptr
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ret void
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}
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