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[AArch64] Fix isel failure when BUILD_PAIR nodes are left over.

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rdar://39175175

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@329743 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Amara Emerson
2018-04-10 19:01:58 +00:00
parent 681f78964f
commit 74ef222da2
2 changed files with 15 additions and 0 deletions
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lib/Target/AArch64/AArch64ISelLowering.cpp
+2
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@@ -198,6 +198,8 @@ AArch64TargetLowering::AArch64TargetLowering(const TargetMachine &TM,
setOperationAction(ISD::FREM, MVT::f64, Expand);
setOperationAction(ISD::FREM, MVT::f80, Expand);
setOperationAction(ISD::BUILD_PAIR, MVT::i64, Expand);
// Custom lowering hooks are needed for XOR
// to fold it into CSINC/CSINV.
setOperationAction(ISD::XOR, MVT::i32, Custom);
test/CodeGen/AArch64/build-pair-isel.ll
+13
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@@ -0,0 +1,13 @@
; RUN: llc -mtriple=aarch64 -o - -O0 %s | FileCheck %s
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
target triple = "arm64-apple-ios5.0.0"
; This test checks we don't fail isel due to unhandled build_pair nodes.
; CHECK: bfi
define void @compare_and_swap128() {
%1 = call i128 asm sideeffect "nop", "=r,~{memory}"()
store i128 %1, i128* undef, align 16
ret void
}