Mercurial > hg > CbC > CbC_llvm
changeset 20:a5b470e0d09d
set FastCC(Calling Convention) when the function is code segment and set GuaranteedTailCallOpt. but llvm still output not jmp but call...
| author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sun, 06 Oct 2013 18:16:15 +0900 |
| parents | 29d31faaa39e |
| children | fc4a6333556f |
| files | tools/clang/lib/CodeGen/BackendUtil.cpp tools/clang/lib/CodeGen/CGCall.cpp |
| diffstat | 2 files changed, 7 insertions(+), 0 deletions(-) [+] |
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--- a/tools/clang/lib/CodeGen/BackendUtil.cpp Sun Oct 06 00:43:38 2013 +0900 +++ b/tools/clang/lib/CodeGen/BackendUtil.cpp Sun Oct 06 18:16:15 2013 +0900 @@ -460,6 +460,7 @@ Options.EnableSegmentedStacks = CodeGenOpts.EnableSegmentedStacks; #ifndef noCbC Options.HasCodeSegment = LangOpts.HasCodeSegment; + Options.GuaranteedTailCallOpt = LangOpts.HasCodeSegment; #endif
--- a/tools/clang/lib/CodeGen/CGCall.cpp Sun Oct 06 00:43:38 2013 +0900 +++ b/tools/clang/lib/CodeGen/CGCall.cpp Sun Oct 06 18:16:15 2013 +0900 @@ -445,6 +445,12 @@ if (FI) return *FI; +#ifndef noCbC + // if the function is a code segment , set fastcall calling convention. + if(resultType.getTypePtr()->is__CodeType()) + CC = llvm::CallingConv::Fast; +#endif + // Construct the function info. We co-allocate the ArgInfos. FI = CGFunctionInfo::create(CC, info, resultType, argTypes, required); FunctionInfos.InsertNode(FI, insertPos);