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Imported Upstream version 6.0.0.172

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Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd
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Xamarin Public Jenkins (auto-signing)
2019-04-12 14:10:50 +00:00
parent 8016999e4d
commit 64ac736ec5
32155 changed files with 3981439 additions and 75368 deletions
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28
external/llvm/test/CodeGen/AArch64/arm64-dagcombiner-dead-indexed-load.ll vendored Normal file
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; RUN: llc -mcpu=cyclone < %s | FileCheck %s
target datalayout = "e-i64:64-n32:64-S128"
target triple = "arm64-apple-ios"
%"struct.SU" = type { i32, %"struct.SU"*, i32*, i32, i32, %"struct.BO", i32, [5 x i8] }
%"struct.BO" = type { %"struct.RE" }
%"struct.RE" = type { i32, i32, i32, i32 }
; This is a read-modify-write of some bifields combined into an i48. It gets
; legalized into i32 and i16 accesses. Only a single store of zero to the low
; i32 part should be live.
; CHECK-LABEL: test:
; CHECK-NOT: ldr
; CHECK: str wzr
; CHECK-NOT: str
define void @test(%"struct.SU"* nocapture %su) {
entry:
%r1 = getelementptr inbounds %"struct.SU", %"struct.SU"* %su, i64 1, i32 5
%r2 = bitcast %"struct.BO"* %r1 to i48*
%r3 = load i48, i48* %r2, align 8
%r4 = and i48 %r3, -4294967296
%r5 = or i48 0, %r4
store i48 %r5, i48* %r2, align 8
ret void
}