diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86FastISel.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86FastISel.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86FastISel.cpp b/llvm/lib/Target/X86/X86FastISel.cpp index 97abd084bf5..e5e089d07d5 100644 --- a/llvm/lib/Target/X86/X86FastISel.cpp +++ b/llvm/lib/Target/X86/X86FastISel.cpp @@ -1160,6 +1160,7 @@ bool X86FastISel::X86SelectRet(const Instruction *I) { CallingConv::ID CC = F.getCallingConv(); if (CC != CallingConv::C && CC != CallingConv::Fast && + CC != CallingConv::Tail && CC != CallingConv::X86_FastCall && CC != CallingConv::X86_StdCall && CC != CallingConv::X86_ThisCall && @@ -1173,7 +1174,8 @@ bool X86FastISel::X86SelectRet(const Instruction *I) { // fastcc with -tailcallopt is intended to provide a guaranteed // tail call optimization. Fastisel doesn't know how to do that. - if (CC == CallingConv::Fast && TM.Options.GuaranteedTailCallOpt) + if ((CC == CallingConv::Fast && TM.Options.GuaranteedTailCallOpt) || + CC == CallingConv::Tail) return false; // Let SDISel handle vararg functions. @@ -3157,7 +3159,7 @@ static unsigned computeBytesPoppedByCalleeForSRet(const X86Subtarget *Subtarget, if (Subtarget->getTargetTriple().isOSMSVCRT()) return 0; if (CC == CallingConv::Fast || CC == CallingConv::GHC || - CC == CallingConv::HiPE) + CC == CallingConv::HiPE || CC == CallingConv::Tail) return 0; if (CS) @@ -3208,6 +3210,7 @@ bool X86FastISel::fastLowerCall(CallLoweringInfo &CLI) { default: return false; case CallingConv::C: case CallingConv::Fast: + case CallingConv::Tail: case CallingConv::WebKit_JS: case CallingConv::Swift: case CallingConv::X86_FastCall: @@ -3224,7 +3227,8 @@ bool X86FastISel::fastLowerCall(CallLoweringInfo &CLI) { // fastcc with -tailcallopt is intended to provide a guaranteed // tail call optimization. Fastisel doesn't know how to do that. - if (CC == CallingConv::Fast && TM.Options.GuaranteedTailCallOpt) + if ((CC == CallingConv::Fast && TM.Options.GuaranteedTailCallOpt) || + CC == CallingConv::Tail) return false; // Don't know how to handle Win64 varargs yet. Nothing special needed for |
