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| author | Evan Cheng <evan.cheng@apple.com> | 2009-02-20 20:43:02 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-02-20 20:43:02 +0000 |
| commit | 79fb3b434f83bcb7c382dbcfea485884a39b9544 (patch) | |
| tree | 7166ad77f5af08c582f8b0b398afc328d65b0022 /lib/Target | |
| parent | 9a65cfe7dd7662558b45bcba46b11ee52c4bbf6c (diff) | |
| download | external_llvm-79fb3b434f83bcb7c382dbcfea485884a39b9544.zip external_llvm-79fb3b434f83bcb7c382dbcfea485884a39b9544.tar.gz external_llvm-79fb3b434f83bcb7c382dbcfea485884a39b9544.tar.bz2 | |
Support return of MMX values in 64-bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65152 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index 85a6c0b..efcb3f4 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -1071,9 +1071,21 @@ LowerCallResult(SDValue Chain, SDValue InFlag, CallSDNode *TheCall, CopyVT = MVT::f80; } - Chain = DAG.getCopyFromReg(Chain, dl, VA.getLocReg(), - CopyVT, InFlag).getValue(1); - SDValue Val = Chain.getValue(0); + SDValue Val; + if (Is64Bit && CopyVT.isVector() && CopyVT.getSizeInBits() == 64) { + // For x86-64, MMX values are returned in XMM0 and XMM1. Issue an + // extract_vector_elt to i64 and then bit_convert it to the desired type. + Chain = DAG.getCopyFromReg(Chain, dl, VA.getLocReg(), + MVT::v2i64, InFlag).getValue(1); + Val = Chain.getValue(0); + Val = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, MVT::i64, + Val, DAG.getConstant(0, MVT::i64)); + Val = DAG.getNode(ISD::BIT_CONVERT, dl, CopyVT, Val); + } else { + Chain = DAG.getCopyFromReg(Chain, dl, VA.getLocReg(), + CopyVT, InFlag).getValue(1); + Val = Chain.getValue(0); + } InFlag = Chain.getValue(2); if (CopyVT != VA.getValVT()) { |