diff options
| author | Duncan Sands <baldrick@free.fr> | 2008-11-03 11:51:11 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2008-11-03 11:51:11 +0000 |
| commit | 5c58a3168f006aaacf2e9c6a69dde86b630d783e (patch) | |
| tree | 6ae2cf42754e5adec3cacf07cfe0c97e87f5c47f | |
| parent | 06140888b1fed24910031f23c302c6a3221f3c42 (diff) | |
Make VAARG work with x86 long double (which is
10 bytes long, but is passed in 12/16 bytes).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58608 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 6 | ||||
| -rw-r--r-- | test/CodeGen/X86/2008-11-03-F80VAARG.ll | 17 |
2 files changed, 20 insertions, 3 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index e1a809608a..8b607b443e 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -3438,9 +3438,9 @@ SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); SDValue VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); // Increment the pointer, VAList, to the next vaarg - Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, - DAG.getConstant(VT.getSizeInBits()/8, - TLI.getPointerTy())); + Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, + DAG.getConstant(TLI.getTargetData()->getABITypeSize(VT.getTypeForMVT()), + TLI.getPointerTy())); // Store the incremented VAList to the legalized pointer Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); // Load the actual argument out of the pointer VAList diff --git a/test/CodeGen/X86/2008-11-03-F80VAARG.ll b/test/CodeGen/X86/2008-11-03-F80VAARG.ll new file mode 100644 index 0000000000..bb9fbdba4a --- /dev/null +++ b/test/CodeGen/X86/2008-11-03-F80VAARG.ll @@ -0,0 +1,17 @@ +; RUN: llvm-as < %s | llc -march=x86 -o - | not grep 10 + +declare void @llvm.va_start(i8*) nounwind + +declare void @llvm.va_copy(i8*, i8*) nounwind + +declare void @llvm.va_end(i8*) nounwind + +define x86_fp80 @test(...) nounwind { + %ap = alloca i8* ; <i8**> [#uses=3] + %v1 = bitcast i8** %ap to i8* ; <i8*> [#uses=1] + call void @llvm.va_start(i8* %v1) + %t1 = va_arg i8** %ap, x86_fp80 ; <x86_fp80> [#uses=1] + %t2 = va_arg i8** %ap, x86_fp80 ; <x86_fp80> [#uses=1] + %t = add x86_fp80 %t1, %t2 ; <x86_fp80> [#uses=1] + ret x86_fp80 %t +} |