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.
167 lines
3.6 KiB
LLVM
167 lines
3.6 KiB
LLVM
; Test moves of integers to byte memory locations.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check the low end of the unsigned range.
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define void @f1(ptr %ptr) {
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; CHECK-LABEL: f1:
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; CHECK: mvi 0(%r2), 0
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; CHECK: br %r14
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store i8 0, ptr %ptr
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ret void
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}
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; Check the high end of the signed range.
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define void @f2(ptr %ptr) {
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; CHECK-LABEL: f2:
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; CHECK: mvi 0(%r2), 127
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; CHECK: br %r14
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store i8 127, ptr %ptr
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ret void
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}
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; Check the next value up.
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define void @f3(ptr %ptr) {
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; CHECK-LABEL: f3:
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; CHECK: mvi 0(%r2), 128
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; CHECK: br %r14
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store i8 -128, ptr %ptr
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ret void
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}
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; Check the high end of the unsigned range.
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define void @f4(ptr %ptr) {
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; CHECK-LABEL: f4:
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; CHECK: mvi 0(%r2), 255
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; CHECK: br %r14
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store i8 255, ptr %ptr
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ret void
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}
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; Check -1.
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define void @f5(ptr %ptr) {
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; CHECK-LABEL: f5:
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; CHECK: mvi 0(%r2), 255
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; CHECK: br %r14
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store i8 -1, ptr %ptr
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ret void
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}
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; Check the low end of the signed range.
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define void @f6(ptr %ptr) {
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; CHECK-LABEL: f6:
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; CHECK: mvi 0(%r2), 128
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; CHECK: br %r14
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store i8 -128, ptr %ptr
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ret void
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}
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; Check the next value down.
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define void @f7(ptr %ptr) {
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; CHECK-LABEL: f7:
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; CHECK: mvi 0(%r2), 127
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; CHECK: br %r14
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store i8 -129, ptr %ptr
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ret void
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}
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; Check the high end of the MVI range.
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define void @f8(ptr %src) {
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; CHECK-LABEL: f8:
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; CHECK: mvi 4095(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i8, ptr %src, i64 4095
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store i8 42, ptr %ptr
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ret void
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}
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; Check the next byte up, which should use MVIY instead of MVI.
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define void @f9(ptr %src) {
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; CHECK-LABEL: f9:
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; CHECK: mviy 4096(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i8, ptr %src, i64 4096
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store i8 42, ptr %ptr
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ret void
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}
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; Check the high end of the MVIY range.
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define void @f10(ptr %src) {
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; CHECK-LABEL: f10:
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; CHECK: mviy 524287(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i8, ptr %src, i64 524287
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store i8 42, ptr %ptr
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ret void
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}
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; Check the next byte up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define void @f11(ptr %src) {
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; CHECK-LABEL: f11:
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; CHECK: agfi %r2, 524288
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; CHECK: mvi 0(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i8, ptr %src, i64 524288
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store i8 42, ptr %ptr
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ret void
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}
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; Check the high end of the negative MVIY range.
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define void @f12(ptr %src) {
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; CHECK-LABEL: f12:
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; CHECK: mviy -1(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i8, ptr %src, i64 -1
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store i8 42, ptr %ptr
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ret void
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}
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; Check the low end of the MVIY range.
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define void @f13(ptr %src) {
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; CHECK-LABEL: f13:
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; CHECK: mviy -524288(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i8, ptr %src, i64 -524288
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store i8 42, ptr %ptr
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ret void
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}
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; Check the next byte down, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define void @f14(ptr %src) {
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; CHECK-LABEL: f14:
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; CHECK: agfi %r2, -524289
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; CHECK: mvi 0(%r2), 42
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; CHECK: br %r14
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%ptr = getelementptr i8, ptr %src, i64 -524289
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store i8 42, ptr %ptr
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ret void
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}
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; Check that MVI does not allow an index. We prefer STC in that case.
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define void @f15(i64 %src, i64 %index) {
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; CHECK-LABEL: f15:
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; CHECK: lhi [[TMP:%r[0-5]]], 42
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; CHECK: stc [[TMP]], 4095({{%r2,%r3|%r3,%r2}}
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; CHECK: br %r14
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%add1 = add i64 %src, %index
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%add2 = add i64 %add1, 4095
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%ptr = inttoptr i64 %add2 to ptr
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store i8 42, ptr %ptr
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ret void
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}
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; Check that MVIY does not allow an index. We prefer STCY in that case.
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define void @f16(i64 %src, i64 %index) {
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; CHECK-LABEL: f16:
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; CHECK: lhi [[TMP:%r[0-5]]], 42
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; CHECK: stcy [[TMP]], 4096({{%r2,%r3|%r3,%r2}}
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; CHECK: br %r14
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%add1 = add i64 %src, %index
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%add2 = add i64 %add1, 4096
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%ptr = inttoptr i64 %add2 to ptr
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store i8 42, ptr %ptr
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ret void
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}
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