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Do not introduce vector operations in functions marked with noimplicitfloat.
<rdar://problem/12879313> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170630 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -25,6 +25,7 @@
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/DataLayout.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/Function.h"
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#include "llvm/LLVMContext.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Debug.h"
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@ -7748,8 +7749,10 @@ bool DAGCombiner::MergeConsecutiveStores(StoreSDNode* St) {
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LastLegalVectorType = i + 1;
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}
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// We only use vectors if the constant is known to be zero.
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if (NonZero)
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// We only use vectors if the constant is known to be zero and the
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// function is not marked with the noimplicitfloat attribute.
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if (NonZero || (DAG.getMachineFunction().getFunction()->getFnAttributes().
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hasAttribute(Attribute::NoImplicitFloat)))
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LastLegalVectorType = 0;
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// Check if we found a legal integer type to store.
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17
test/CodeGen/X86/2012-12-19-NoImplicitFloat.ll
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17
test/CodeGen/X86/2012-12-19-NoImplicitFloat.ll
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@ -0,0 +1,17 @@
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; RUN: llc -mtriple=x86_64-apple-macosx10.8.0 -mcpu=core2 < %s | FileCheck %s
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; Test that we do not introduce vector operations with noimplicitfloat.
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; rdar://12879313
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%struct1 = type { i32*, i32* }
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define void @test() nounwind noimplicitfloat {
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entry:
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; CHECK-NOT: xmm
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; CHECK: ret
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%0 = load %struct1** undef, align 8
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%1 = getelementptr inbounds %struct1* %0, i64 0, i32 0
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store i32* null, i32** %1, align 8
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%2 = getelementptr inbounds %struct1* %0, i64 0, i32 1
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store i32* null, i32** %2, align 8
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ret void
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}
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