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 32-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 i32 @llvm.bswap.i32(i32 %a)
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; Check STRV with no displacement.
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define void @f1(ptr %dst, i32 %a) {
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; CHECK-LABEL: f1:
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; CHECK: strv %r3, 0(%r2)
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; CHECK: br %r14
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%swapped = call i32 @llvm.bswap.i32(i32 %a)
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store i32 %swapped, ptr %dst
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ret void
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}
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; Check the high end of the aligned STRV range.
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define void @f2(ptr %dst, i32 %a) {
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; CHECK-LABEL: f2:
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; CHECK: strv %r3, 524284(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %dst, i64 131071
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%swapped = call i32 @llvm.bswap.i32(i32 %a)
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store i32 %swapped, ptr %ptr
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ret void
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}
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; Check the next word 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, i32 %a) {
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; CHECK-LABEL: f3:
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; CHECK: agfi %r2, 524288
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; CHECK: strv %r3, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %dst, i64 131072
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%swapped = call i32 @llvm.bswap.i32(i32 %a)
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store i32 %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 STRV range.
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define void @f4(ptr %dst, i32 %a) {
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; CHECK-LABEL: f4:
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; CHECK: strv %r3, -4(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %dst, i64 -1
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%swapped = call i32 @llvm.bswap.i32(i32 %a)
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store i32 %swapped, ptr %ptr
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ret void
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}
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; Check the low end of the STRV range.
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define void @f5(ptr %dst, i32 %a) {
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; CHECK-LABEL: f5:
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; CHECK: strv %r3, -524288(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %dst, i64 -131072
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%swapped = call i32 @llvm.bswap.i32(i32 %a)
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store i32 %swapped, ptr %ptr
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ret void
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}
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; Check the next word 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, i32 %a) {
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; CHECK-LABEL: f6:
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; CHECK: agfi %r2, -524292
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; CHECK: strv %r3, 0(%r2)
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; CHECK: br %r14
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%ptr = getelementptr i32, ptr %dst, i64 -131073
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%swapped = call i32 @llvm.bswap.i32(i32 %a)
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store i32 %swapped, ptr %ptr
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ret void
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}
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; Check that STRV allows an index.
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define void @f7(i64 %src, i64 %index, i32 %a) {
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; CHECK-LABEL: f7:
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; CHECK: strv %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 i32 @llvm.bswap.i32(i32 %a)
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store i32 %swapped, ptr %ptr
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ret void
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}
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