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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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32
external/llvm/test/Transforms/InstCombine/idioms.ll vendored
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@ -1,32 +0,0 @@
; RUN: opt -instcombine -S < %s | FileCheck %s
; Check that code corresponding to the following C function is
; simplified into a single ASR operation:
;
; int test_asr(int a, int b) {
; return a < 0 ? -(-a - 1 >> b) - 1 : a >> b;
; }
;
define i32 @test_asr(i32 %a, i32 %b) {
entry:
%c = icmp slt i32 %a, 0
br i1 %c, label %bb2, label %bb3
bb2:
%t1 = sub i32 0, %a
%not = sub i32 %t1, 1
%d = ashr i32 %not, %b
%t2 = sub i32 0, %d
%not2 = sub i32 %t2, 1
br label %bb4
bb3:
%e = ashr i32 %a, %b
br label %bb4
bb4:
%f = phi i32 [ %not2, %bb2 ], [ %e, %bb3 ]
ret i32 %f
; CHECK-LABEL: @test_asr(
; CHECK: bb4:
; CHECK: %f = ashr i32 %a, %b
; CHECK: ret i32 %f
}