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Imported Upstream version 6.10.0.49

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Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b
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Xamarin Public Jenkins (auto-signing)
2020-01-16 16:38:04 +00:00
parent d94e79959b
commit 468663ddbb
48518 changed files with 2789335 additions and 61176 deletions
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57
external/llvm-project/llvm/test/Transforms/SimplifyCFG/switch-to-icmp.ll vendored Normal file
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; RUN: opt -S -simplifycfg < %s | FileCheck %s
define zeroext i1 @test1(i32 %x) nounwind readnone ssp noredzone {
entry:
switch i32 %x, label %lor.rhs [
i32 2, label %lor.end
i32 1, label %lor.end
i32 3, label %lor.end
]
lor.rhs:
br label %lor.end
lor.end:
%0 = phi i1 [ true, %entry ], [ false, %lor.rhs ], [ true, %entry ], [ true, %entry ]
ret i1 %0
; CHECK-LABEL: @test1(
; CHECK: %x.off = add i32 %x, -1
; CHECK: %switch = icmp ult i32 %x.off, 3
}
define zeroext i1 @test2(i32 %x) nounwind readnone ssp noredzone {
entry:
switch i32 %x, label %lor.rhs [
i32 0, label %lor.end
i32 1, label %lor.end
]
lor.rhs:
br label %lor.end
lor.end:
%0 = phi i1 [ true, %entry ], [ false, %lor.rhs ], [ true, %entry ]
ret i1 %0
; CHECK-LABEL: @test2(
; CHECK: %switch = icmp ult i32 %x, 2
}
define i32 @test3(i1 %flag) {
entry:
switch i1 %flag, label %bad [
i1 true, label %good
i1 false, label %good
]
good:
ret i32 0
bad:
ret i32 1
; CHECK-LABEL: @test3(
; CHECK: entry:
; CHECK-NEXT: ret i32 0
}