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Imported Upstream version 5.18.0.179

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Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215
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Xamarin Public Jenkins (auto-signing)
2018-10-25 08:34:57 +00:00
parent d6bde52373
commit 8625704ad8
28485 changed files with 3866843 additions and 50 deletions
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22
external/llvm/test/CodeGen/AArch64/arm64-sitofp-combine-chains.ll vendored Normal file
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; RUN: llc < %s -mtriple=arm64-eabi | FileCheck %s
; ARM64ISelLowering.cpp was creating a new (floating-point) load for efficiency
; but not updating chain-successors of the old one. As a result, the two memory
; operations in this function both ended up direct successors to the EntryToken
; and could be reordered.
@var = global i32 0, align 4
define float @foo() {
; CHECK-LABEL: foo:
; Load must come before we clobber @var
; CHECK: adrp x[[VARBASE:[0-9]+]], {{_?var}}
; CHECK: ldr [[SREG:s[0-9]+]], [x[[VARBASE]],
; CHECK: str wzr, [x[[VARBASE]],
%val = load i32, i32* @var, align 4
store i32 0, i32* @var, align 4
%fltval = sitofp i32 %val to float
ret float %fltval
}