forked from OSchip/llvm-project
72 lines
2.2 KiB
LLVM
72 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -ipsccp -S | FileCheck %s
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declare void @use(i1)
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declare void @llvm.assume(i1)
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define void @basic(i32 %v) {
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; CHECK-LABEL: @basic(
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; CHECK-NEXT: [[A1:%.*]] = icmp ult i32 [[V:%.*]], 10
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; CHECK-NEXT: call void @llvm.assume(i1 [[A1]])
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; CHECK-NEXT: [[A2:%.*]] = icmp ugt i32 [[V]], 5
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; CHECK-NEXT: call void @llvm.assume(i1 [[A2]])
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: [[C2:%.*]] = icmp ult i32 [[V]], 9
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; CHECK-NEXT: call void @use(i1 [[C2]])
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C4:%.*]] = icmp ugt i32 [[V]], 8
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; CHECK-NEXT: call void @use(i1 [[C4]])
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: [[C6:%.*]] = icmp ugt i32 [[V]], 6
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; CHECK-NEXT: call void @use(i1 [[C6]])
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[C8:%.*]] = icmp ult i32 [[V]], 7
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; CHECK-NEXT: call void @use(i1 [[C8]])
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; CHECK-NEXT: ret void
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;
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%a1 = icmp ult i32 %v, 10
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call void @llvm.assume(i1 %a1)
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%a2 = icmp ugt i32 %v, 5
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call void @llvm.assume(i1 %a2)
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%c1 = icmp ult i32 %v, 10
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call void @use(i1 %c1)
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%c2 = icmp ult i32 %v, 9
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call void @use(i1 %c2)
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%c3 = icmp ugt i32 %v, 9
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call void @use(i1 %c3)
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%c4 = icmp ugt i32 %v, 8
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call void @use(i1 %c4)
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%c5 = icmp ugt i32 %v, 5
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call void @use(i1 %c5)
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%c6 = icmp ugt i32 %v, 6
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call void @use(i1 %c6)
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%c7 = icmp ult i32 %v, 6
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call void @use(i1 %c7)
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%c8 = icmp ult i32 %v, 7
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call void @use(i1 %c8)
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ret void
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}
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define void @nonnull(i32* %v) {
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; CHECK-LABEL: @nonnull(
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; CHECK-NEXT: [[A:%.*]] = icmp ne i32* [[V:%.*]], null
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; CHECK-NEXT: call void @llvm.assume(i1 [[A]])
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: call void @use(i1 true)
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; CHECK-NEXT: call void @use(i1 false)
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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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%a = icmp ne i32* %v, null
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call void @llvm.assume(i1 %a)
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%c1 = icmp eq i32* %v, null
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call void @use(i1 %c1)
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%c2 = icmp ne i32* %v, null
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call void @use(i1 %c2)
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%c3 = icmp eq i32* null, %v
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call void @use(i1 %c3)
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%c4 = icmp ne i32* null, %v
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call void @use(i1 %c4)
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ret void
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}
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