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Don't force promotion of return arguments on the callee.

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Some architectures (like x86) don't require it.
This fixes bug 3779.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67132 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2009-03-17 23:43:59 +00:00
parent b372c1114c
commit 152932b71c
17 changed files with 37 additions and 38 deletions
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9
lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
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@@ -979,15 +979,6 @@ void SelectionDAGLowering::visitRet(ReturnInst &I) {
for (unsigned j = 0, f = NumValues; j != f; ++j) {
MVT VT = ValueVTs[j];
// FIXME: C calling convention requires the return type to be promoted to
// at least 32-bit. But this is not necessary for non-C calling
// conventions.
if (VT.isInteger()) {
MVT MinVT = TLI.getRegisterType(MVT::i32);
if (VT.bitsLT(MinVT))
VT = MinVT;
}
unsigned NumParts = TLI.getNumRegisters(VT);
MVT PartVT = TLI.getRegisterType(VT);
SmallVector<SDValue, 4> Parts(NumParts);