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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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41
external/llvm/test/Transforms/InstCombine/prevent-cmp-merge.ll vendored
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@ -1,41 +0,0 @@
; RUN: opt < %s -instcombine -S | FileCheck %s
;
; This test makes sure that InstCombine does not replace the sequence of
; xor/sub instruction followed by cmp instruction into a single cmp instruction
; if there is more than one use of xor/sub.
define zeroext i1 @test1(i32 %lhs, i32 %rhs) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: %xor = xor i32 %lhs, 5
; CHECK-NEXT: %cmp1 = icmp eq i32 %xor, 10
%xor = xor i32 %lhs, 5
%cmp1 = icmp eq i32 %xor, 10
%cmp2 = icmp eq i32 %xor, %rhs
%sel = or i1 %cmp1, %cmp2
ret i1 %sel
}
define zeroext i1 @test2(i32 %lhs, i32 %rhs) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: %xor = xor i32 %lhs, %rhs
; CHECK-NEXT: %cmp1 = icmp eq i32 %xor, 0
%xor = xor i32 %lhs, %rhs
%cmp1 = icmp eq i32 %xor, 0
%cmp2 = icmp eq i32 %xor, 32
%sel = xor i1 %cmp1, %cmp2
ret i1 %sel
}
define zeroext i1 @test3(i32 %lhs, i32 %rhs) {
; CHECK-LABEL: @test3(
; CHECK-NEXT: %sub = sub nsw i32 %lhs, %rhs
; CHECK-NEXT: %cmp1 = icmp eq i32 %sub, 0
%sub = sub nsw i32 %lhs, %rhs
%cmp1 = icmp eq i32 %sub, 0
%cmp2 = icmp eq i32 %sub, 31
%sel = or i1 %cmp1, %cmp2
ret i1 %sel
}