39 lines
1.0 KiB
LLVM
39 lines
1.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
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declare void @use(i1)
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define void @test(i8* %m, i8* %ptr) {
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP_1:%.*]] = icmp ult i8* [[M:%.*]], [[PTR:%.*]]
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; CHECK-NEXT: br i1 [[CMP_1]], label [[BB_1:%.*]], label [[BB_2:%.*]]
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; CHECK: bb.1:
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; CHECK-NEXT: [[CMP_2:%.*]] = icmp uge i8* [[M]], [[PTR]]
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: ret void
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; CHECK: bb.2:
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; CHECK-NEXT: br label [[BB_2_NEXT:%.*]]
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; CHECK: bb.2.next:
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; CHECK-NEXT: [[CMP_3:%.*]] = icmp uge i8* [[M]], [[PTR]]
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: ret void
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;
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entry:
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%cmp.1 = icmp ult i8* %m, %ptr
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br i1 %cmp.1, label %bb.1, label %bb.2
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bb.1:
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%cmp.2 = icmp uge i8* %m, %ptr
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call void @use(i1 %cmp.2)
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ret void
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bb.2:
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br label %bb.2.next
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bb.2.next:
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%cmp.3 = icmp uge i8* %m, %ptr
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call void @use(i1 %cmp.3)
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ret void
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}
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