Implement fastcc calling convention for MIPS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158410 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 1793a0f..e012b4e 100644
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -2605,7 +2605,9 @@
CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(),
getTargetMachine(), ArgLocs, *DAG.getContext());
- if (IsO32)
+ if (CallConv == CallingConv::Fast)
+ CCInfo.AnalyzeCallOperands(Outs, CC_Mips_FastCC);
+ else if (IsO32)
CCInfo.AnalyzeCallOperands(Outs, CC_MipsO32);
else if (HasMips64)
AnalyzeMips64CallOperands(CCInfo, Outs);
@@ -2630,7 +2632,7 @@
// Update size of the maximum argument space.
// For O32, a minimum of four words (16 bytes) of argument space is
// allocated.
- if (IsO32)
+ if (IsO32 && (CallConv != CallingConv::Fast))
NextStackOffset = std::max(NextStackOffset, (unsigned)16);
unsigned MaxCallFrameSize = MipsFI->getMaxCallFrameSize();
@@ -2990,7 +2992,9 @@
CCState CCInfo(CallConv, isVarArg, DAG.getMachineFunction(),
getTargetMachine(), ArgLocs, *DAG.getContext());
- if (IsO32)
+ if (CallConv == CallingConv::Fast)
+ CCInfo.AnalyzeFormalArguments(Ins, CC_Mips_FastCC);
+ else if (IsO32)
CCInfo.AnalyzeFormalArguments(Ins, CC_MipsO32);
else
CCInfo.AnalyzeFormalArguments(Ins, CC_Mips);