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.
48 lines
1.2 KiB
LLVM
48 lines
1.2 KiB
LLVM
; Test that we take advantage of signext and zeroext annotations.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Zero extension of something that is already zero-extended.
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define void @f1(i32 zeroext %r2, ptr %r3) {
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; CHECK-LABEL: f1:
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; CHECK-NOT: %r2
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; CHECK: stg %r2, 0(%r3)
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; CHECK: br %r14
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%conv = zext i32 %r2 to i64
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store i64 %conv, ptr %r3
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ret void
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}
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; Sign extension of something that is already sign-extended.
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define void @f2(i32 signext %r2, ptr %r3) {
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; CHECK-LABEL: f2:
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; CHECK-NOT: %r2
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; CHECK: stg %r2, 0(%r3)
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; CHECK: br %r14
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%conv = sext i32 %r2 to i64
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store i64 %conv, ptr %r3
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ret void
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}
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; Sign extension of something that is already zero-extended.
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define void @f3(i32 zeroext %r2, ptr %r3) {
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; CHECK-LABEL: f3:
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; CHECK: lgfr [[REGISTER:%r[0-5]+]], %r2
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; CHECK: stg [[REGISTER]], 0(%r3)
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; CHECK: br %r14
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%conv = sext i32 %r2 to i64
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store i64 %conv, ptr %r3
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ret void
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}
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; Zero extension of something that is already sign-extended.
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define void @f4(i32 signext %r2, ptr %r3) {
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; CHECK-LABEL: f4:
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; CHECK: llgfr [[REGISTER:%r[0-5]+]], %r2
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; CHECK: stg [[REGISTER]], 0(%r3)
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; CHECK: br %r14
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%conv = zext i32 %r2 to i64
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store i64 %conv, ptr %r3
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ret void
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}
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