derek.holloway
7502bf64a4
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89 lines
2.9 KiB
LLVM
89 lines
2.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=ipsccp %s | FileCheck %s
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declare void @use(i1)
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define i1 @test1(i64 %x) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[COND:%.*]] = icmp ugt i64 [[X:%.*]], 65535
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; CHECK-NEXT: call void @llvm.assume(i1 [[COND]])
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; CHECK-NEXT: [[MASK:%.*]] = and i64 [[X]], -65521
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; CHECK-NEXT: ret i1 false
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;
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entry:
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%cond = icmp ugt i64 %x, 65535
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call void @llvm.assume(i1 %cond)
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%mask = and i64 %x, -65521
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%cmp = icmp eq i64 %mask, 0
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ret i1 %cmp
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}
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define void @test.and(i64 %x, i64 %y) {
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; CHECK-LABEL: @test.and(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C0:%.*]] = icmp uge i64 [[X:%.*]], 138
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; CHECK-NEXT: [[C1:%.*]] = icmp ule i64 [[X]], 161
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; CHECK-NEXT: call void @llvm.assume(i1 [[C0]])
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; CHECK-NEXT: call void @llvm.assume(i1 [[C1]])
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; CHECK-NEXT: [[C2:%.*]] = icmp uge i64 [[Y:%.*]], 186
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; CHECK-NEXT: [[C3:%.*]] = icmp ule i64 [[Y]], 188
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; CHECK-NEXT: call void @llvm.assume(i1 [[C2]])
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; CHECK-NEXT: call void @llvm.assume(i1 [[C3]])
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; CHECK-NEXT: [[AND:%.*]] = and i64 [[X]], [[Y]]
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[R1:%.*]] = icmp ult i64 [[AND]], 137
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; CHECK-NEXT: call void @use(i1 [[R1]])
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; CHECK-NEXT: ret void
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;
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entry:
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%c0 = icmp uge i64 %x, 138 ; 0b10001010
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%c1 = icmp ule i64 %x, 161 ; 0b10100000
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call void @llvm.assume(i1 %c0)
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call void @llvm.assume(i1 %c1)
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%c2 = icmp uge i64 %y, 186 ; 0b10111010
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%c3 = icmp ule i64 %y, 188 ; 0b10111110
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call void @llvm.assume(i1 %c2)
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call void @llvm.assume(i1 %c3)
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%and = and i64 %x, %y
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%r0 = icmp ult i64 %and, 136 ; 0b10001000
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call void @use(i1 %r0) ; false
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%r1 = icmp ult i64 %and, 137
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call void @use(i1 %r1) ; unknown
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ret void
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}
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define void @test.or(i64 %x, i64 %y) {
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; CHECK-LABEL: @test.or(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[C0:%.*]] = icmp ule i64 [[X:%.*]], 117
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; CHECK-NEXT: [[C1:%.*]] = icmp uge i64 [[X]], 95
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; CHECK-NEXT: call void @llvm.assume(i1 [[C0]])
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; CHECK-NEXT: call void @llvm.assume(i1 [[C1]])
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; CHECK-NEXT: [[C2:%.*]] = icmp ule i64 [[Y:%.*]], 69
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; CHECK-NEXT: [[C3:%.*]] = icmp uge i64 [[Y]], 67
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; CHECK-NEXT: call void @llvm.assume(i1 [[C2]])
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; CHECK-NEXT: call void @llvm.assume(i1 [[C3]])
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; CHECK-NEXT: [[OR:%.*]] = or i64 [[X]], [[Y]]
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; CHECK-NEXT: call void @use(i1 false)
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; CHECK-NEXT: [[R1:%.*]] = icmp ugt i64 [[OR]], 118
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; CHECK-NEXT: call void @use(i1 [[R1]])
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; CHECK-NEXT: ret void
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;
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entry:
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%c0 = icmp ule i64 %x, 117 ; 0b01110101
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%c1 = icmp uge i64 %x, 95 ; 0b01011111
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call void @llvm.assume(i1 %c0)
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call void @llvm.assume(i1 %c1)
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%c2 = icmp ule i64 %y, 69 ; 0b01000101
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%c3 = icmp uge i64 %y, 67 ; 0b01000011
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call void @llvm.assume(i1 %c2)
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call void @llvm.assume(i1 %c3)
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%or = or i64 %x, %y
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%r0 = icmp ugt i64 %or, 119 ; 0b01110111
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call void @use(i1 %r0) ; false
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%r1 = icmp ugt i64 %or, 118
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call void @use(i1 %r1) ; unknown
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ret void
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}
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