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Allow targets to define libcall names for mem(cpy,set,move) intrinsics, rather than hardcoding them in DAG lowering.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77586 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjiv Gupta 2009-07-30 09:12:56 +00:00
parent 7216920791
commit a114baa5bf
3 changed files with 14 additions and 3 deletions
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5
include/llvm/CodeGen/RuntimeLibcalls.h
View File

@ -224,6 +224,11 @@ namespace RTLIB {
O_F32,
O_F64,
// MEMORY
MEMCPY,
MEMSET,
MEMMOVE,
// EXCEPTION HANDLING
UNWIND_RESUME,

9
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
View File

@ -3385,7 +3385,8 @@ SDValue SelectionDAG::getMemcpy(SDValue Chain, DebugLoc dl, SDValue Dst,
std::pair<SDValue,SDValue> CallResult =
TLI.LowerCallTo(Chain, Type::VoidTy,
false, false, false, false, 0, CallingConv::C, false,
getExternalSymbol("memcpy", TLI.getPointerTy()),
getExternalSymbol(TLI.getLibcallName(RTLIB::MEMCPY),
TLI.getPointerTy()),
Args, *this, dl);
return CallResult.second;
}
@ -3431,7 +3432,8 @@ SDValue SelectionDAG::getMemmove(SDValue Chain, DebugLoc dl, SDValue Dst,
std::pair<SDValue,SDValue> CallResult =
TLI.LowerCallTo(Chain, Type::VoidTy,
false, false, false, false, 0, CallingConv::C, false,
getExternalSymbol("memmove", TLI.getPointerTy()),
getExternalSymbol(TLI.getLibcallName(RTLIB::MEMMOVE),
TLI.getPointerTy()),
Args, *this, dl);
return CallResult.second;
}
@ -3483,7 +3485,8 @@ SDValue SelectionDAG::getMemset(SDValue Chain, DebugLoc dl, SDValue Dst,
std::pair<SDValue,SDValue> CallResult =
TLI.LowerCallTo(Chain, Type::VoidTy,
false, false, false, false, 0, CallingConv::C, false,
getExternalSymbol("memset", TLI.getPointerTy()),
getExternalSymbol(TLI.getLibcallName(RTLIB::MEMSET),
TLI.getPointerTy()),
Args, *this, dl);
return CallResult.second;
}

3
lib/CodeGen/SelectionDAG/TargetLowering.cpp
View File

@ -241,6 +241,9 @@ static void InitLibcallNames(const char **Names) {
Names[RTLIB::UO_F64] = "__unorddf2";
Names[RTLIB::O_F32] = "__unordsf2";
Names[RTLIB::O_F64] = "__unorddf2";
Names[RTLIB::MEMCPY] = "memcpy";
Names[RTLIB::MEMMOVE] = "memmove";
Names[RTLIB::MEMSET] = "memset";
Names[RTLIB::UNWIND_RESUME] = "_Unwind_Resume";
}