diff options
Diffstat (limited to 'lib/CodeGen/TargetInfo.cpp')
| -rw-r--r-- | lib/CodeGen/TargetInfo.cpp | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp index 3bdfbf641c..292f58eef4 100644 --- a/lib/CodeGen/TargetInfo.cpp +++ b/lib/CodeGen/TargetInfo.cpp @@ -747,7 +747,8 @@ class X86_64ABIInfo : public ABIInfo { ASTContext &Context, llvm::LLVMContext &VMContext, unsigned &neededInt, - unsigned &neededSSE) const; + unsigned &neededSSE, + const llvm::Type *PrefType) const; public: virtual void computeInfo(CGFunctionInfo &FI, ASTContext &Context, @@ -1292,7 +1293,8 @@ classifyReturnType(QualType RetTy, ASTContext &Context, ABIArgInfo X86_64ABIInfo::classifyArgumentType(QualType Ty, ASTContext &Context, llvm::LLVMContext &VMContext, unsigned &neededInt, - unsigned &neededSSE) const { + unsigned &neededSSE, + const llvm::Type *PrefType)const{ X86_64ABIInfo::Class Lo, Hi; classify(Ty, Context, 0, Lo, Hi); @@ -1397,9 +1399,17 @@ void X86_64ABIInfo::computeInfo(CGFunctionInfo &FI, ASTContext &Context, // get assigned (in left-to-right order) for passing as follows... for (CGFunctionInfo::arg_iterator it = FI.arg_begin(), ie = FI.arg_end(); it != ie; ++it) { + // If the client specified a preferred IR type to use, pass it down to + // classifyArgumentType. + const llvm::Type *PrefType = 0; + if (NumPrefTypes) { + PrefType = *PrefTypes++; + --NumPrefTypes; + } + unsigned neededInt, neededSSE; it->info = classifyArgumentType(it->type, Context, VMContext, - neededInt, neededSSE); + neededInt, neededSSE, PrefType); // AMD64-ABI 3.2.3p3: If there are no registers available for any // eightbyte of an argument, the whole argument is passed on the @@ -1480,7 +1490,7 @@ llvm::Value *X86_64ABIInfo::EmitVAArg(llvm::Value *VAListAddr, QualType Ty, Ty = CGF.getContext().getCanonicalType(Ty); ABIArgInfo AI = classifyArgumentType(Ty, CGF.getContext(), VMContext, - neededInt, neededSSE); + neededInt, neededSSE, 0); // AMD64-ABI 3.5.7p5: Step 1. Determine whether type may be passed // in the registers. If not go to step 7. |