45 lines
1.2 KiB
LLVM
45 lines
1.2 KiB
LLVM
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; RUN: opt -mergefunc -S < %s | FileCheck %s
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define i1 @cmp_with_range(i8*, i8*) {
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%v1 = load i8, i8* %0, !range !0
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%v2 = load i8, i8* %1, !range !0
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%out = icmp eq i8 %v1, %v2
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ret i1 %out
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}
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define i1 @cmp_no_range(i8*, i8*) {
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; CHECK-LABEL: @cmp_no_range
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; CHECK-NEXT: %v1 = load i8, i8* %0
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; CHECK-NEXT: %v2 = load i8, i8* %1
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; CHECK-NEXT: %out = icmp eq i8 %v1, %v2
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; CHECK-NEXT: ret i1 %out
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%v1 = load i8, i8* %0
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%v2 = load i8, i8* %1
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%out = icmp eq i8 %v1, %v2
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ret i1 %out
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}
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define i1 @cmp_different_range(i8*, i8*) {
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; CHECK-LABEL: @cmp_different_range
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; CHECK-NEXT: %v1 = load i8, i8* %0, align 1, !range !1
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; CHECK-NEXT: %v2 = load i8, i8* %1, align 1, !range !1
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; CHECK-NEXT: %out = icmp eq i8 %v1, %v2
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; CHECK-NEXT: ret i1 %out
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%v1 = load i8, i8* %0, !range !1
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%v2 = load i8, i8* %1, !range !1
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%out = icmp eq i8 %v1, %v2
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ret i1 %out
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}
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define i1 @cmp_with_same_range(i8*, i8*) {
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; CHECK-LABEL: @cmp_with_same_range
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; CHECK: tail call i1 @cmp_with_range
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%v1 = load i8, i8* %0, !range !0
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%v2 = load i8, i8* %1, !range !0
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%out = icmp eq i8 %v1, %v2
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ret i1 %out
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}
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; The comparison must check every element of the range, not just the first pair.
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!0 = !{i8 0, i8 2, i8 21, i8 30}
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!1 = !{i8 0, i8 2, i8 21, i8 25}
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