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Update tailcall code to include inline attribute operand for memcpy.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43978 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Arnold Schwaighofer 2007-11-10 10:48:01 +00:00
parent 1a8a08a690
commit 38ada868f2
2 changed files with 19 additions and 3 deletions
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7
lib/Target/X86/X86ISelLowering.cpp
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@ -1643,9 +1643,10 @@ SDOperand X86TargetLowering::LowerX86_TailCallTo(SDOperand Op,
SDOperand AlignNode = DAG.getConstant(Align, MVT::i32);
SDOperand SizeNode = DAG.getConstant(Size, MVT::i32);
// Copy relative to framepointer.
MemOpChains2.push_back(DAG.getNode(ISD::MEMCPY, MVT::Other, Chain, FIN,
PtrOff, SizeNode, AlignNode));
SDOperand AlwaysInline = DAG.getConstant(1, MVT::i1);
MemOpChains2.push_back(DAG.getMemcpy(Chain, FIN, PtrOff, SizeNode,
AlignNode,AlwaysInline));
} else {
SDOperand LoadedArg = DAG.getLoad(VA.getValVT(), Chain, PtrOff, NULL,0);
// Store relative to framepointer.

15
test/CodeGen/X86/tailcallbyval.ll Normal file
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@ -0,0 +1,15 @@
; RUN: llvm-as < %s | llc -march=x86 -tailcallopt | grep TAILCALL
%struct.s = type { i32, i32, i32 }
define fastcc i32 @tailcallee(%struct.s* byval %a) {
entry:
%tmp2 = getelementptr %struct.s* %a, i32 0, i32 0
%tmp3 = load i32* %tmp2
ret i32 %tmp3
}
define fastcc i32 @tailcaller(%struct.s* byval %a) {
entry:
%tmp4 = tail call fastcc i32 @tailcallee(%struct.s* %a byval)
ret i32 %tmp4
}