mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-17 21:29:20 +00:00
refactor intrinsic handling code out into its own method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47823 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
d9a706ecf9
commit
2299fec22c
@ -271,6 +271,7 @@ namespace {
|
||||
void visitSelectInst(SelectInst &I);
|
||||
void visitCallInst (CallInst &I);
|
||||
void visitInlineAsm(CallInst &I);
|
||||
bool visitBuiltinCall(CallInst &I, Intrinsic::ID ID, bool &WroteCallee);
|
||||
|
||||
void visitMallocInst(MallocInst &I);
|
||||
void visitAllocaInst(AllocaInst &I);
|
||||
@ -2554,7 +2555,6 @@ void CWriter::lowerIntrinsics(Function &F) {
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void CWriter::visitCallInst(CallInst &I) {
|
||||
//check if we have inline asm
|
||||
if (isInlineAsm(I)) {
|
||||
@ -2566,114 +2566,9 @@ void CWriter::visitCallInst(CallInst &I) {
|
||||
|
||||
// Handle intrinsic function calls first...
|
||||
if (Function *F = I.getCalledFunction())
|
||||
if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID()) {
|
||||
switch (ID) {
|
||||
default: {
|
||||
// If this is an intrinsic that directly corresponds to a GCC
|
||||
// builtin, we emit it here.
|
||||
const char *BuiltinName = "";
|
||||
#define GET_GCC_BUILTIN_NAME
|
||||
#include "llvm/Intrinsics.gen"
|
||||
#undef GET_GCC_BUILTIN_NAME
|
||||
assert(BuiltinName[0] && "Unknown LLVM intrinsic!");
|
||||
|
||||
Out << BuiltinName;
|
||||
WroteCallee = true;
|
||||
break;
|
||||
}
|
||||
case Intrinsic::memory_barrier:
|
||||
Out << "0; __sync_syncronize()";
|
||||
if (Intrinsic::ID ID = (Intrinsic::ID)F->getIntrinsicID())
|
||||
if (visitBuiltinCall(I, ID, WroteCallee))
|
||||
return;
|
||||
case Intrinsic::vastart:
|
||||
Out << "0; ";
|
||||
|
||||
Out << "va_start(*(va_list*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", ";
|
||||
// Output the last argument to the enclosing function...
|
||||
if (I.getParent()->getParent()->arg_empty()) {
|
||||
cerr << "The C backend does not currently support zero "
|
||||
<< "argument varargs functions, such as '"
|
||||
<< I.getParent()->getParent()->getName() << "'!\n";
|
||||
abort();
|
||||
}
|
||||
writeOperand(--I.getParent()->getParent()->arg_end());
|
||||
Out << ')';
|
||||
return;
|
||||
case Intrinsic::vaend:
|
||||
if (!isa<ConstantPointerNull>(I.getOperand(1))) {
|
||||
Out << "0; va_end(*(va_list*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ')';
|
||||
} else {
|
||||
Out << "va_end(*(va_list*)0)";
|
||||
}
|
||||
return;
|
||||
case Intrinsic::vacopy:
|
||||
Out << "0; ";
|
||||
Out << "va_copy(*(va_list*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", *(va_list*)";
|
||||
writeOperand(I.getOperand(2));
|
||||
Out << ')';
|
||||
return;
|
||||
case Intrinsic::returnaddress:
|
||||
Out << "__builtin_return_address(";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ')';
|
||||
return;
|
||||
case Intrinsic::frameaddress:
|
||||
Out << "__builtin_frame_address(";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ')';
|
||||
return;
|
||||
case Intrinsic::powi:
|
||||
Out << "__builtin_powi(";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", ";
|
||||
writeOperand(I.getOperand(2));
|
||||
Out << ')';
|
||||
return;
|
||||
case Intrinsic::setjmp:
|
||||
Out << "setjmp(*(jmp_buf*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ')';
|
||||
return;
|
||||
case Intrinsic::longjmp:
|
||||
Out << "longjmp(*(jmp_buf*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", ";
|
||||
writeOperand(I.getOperand(2));
|
||||
Out << ')';
|
||||
return;
|
||||
case Intrinsic::prefetch:
|
||||
Out << "LLVM_PREFETCH((const void *)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", ";
|
||||
writeOperand(I.getOperand(2));
|
||||
Out << ", ";
|
||||
writeOperand(I.getOperand(3));
|
||||
Out << ")";
|
||||
return;
|
||||
case Intrinsic::stacksave:
|
||||
// Emit this as: Val = 0; *((void**)&Val) = __builtin_stack_save()
|
||||
// to work around GCC bugs (see PR1809).
|
||||
Out << "0; *((void**)&" << GetValueName(&I)
|
||||
<< ") = __builtin_stack_save()";
|
||||
return;
|
||||
case Intrinsic::dbg_stoppoint: {
|
||||
// If we use writeOperand directly we get a "u" suffix which is rejected
|
||||
// by gcc.
|
||||
DbgStopPointInst &SPI = cast<DbgStopPointInst>(I);
|
||||
|
||||
Out << "\n#line "
|
||||
<< SPI.getLine()
|
||||
<< " \"" << SPI.getDirectory()
|
||||
<< SPI.getFileName() << "\"\n";
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Value *Callee = I.getCalledValue();
|
||||
|
||||
@ -2763,6 +2658,118 @@ void CWriter::visitCallInst(CallInst &I) {
|
||||
Out << ')';
|
||||
}
|
||||
|
||||
/// visitBuiltinCall - Handle the call to the specified builtin. Returns true
|
||||
/// if the entire call is handled, return false it it wasn't handled, and
|
||||
/// optionally set 'WroteCallee' if the callee has already been printed out.
|
||||
bool CWriter::visitBuiltinCall(CallInst &I, Intrinsic::ID ID,
|
||||
bool &WroteCallee) {
|
||||
switch (ID) {
|
||||
default: {
|
||||
// If this is an intrinsic that directly corresponds to a GCC
|
||||
// builtin, we emit it here.
|
||||
const char *BuiltinName = "";
|
||||
Function *F = I.getCalledFunction();
|
||||
#define GET_GCC_BUILTIN_NAME
|
||||
#include "llvm/Intrinsics.gen"
|
||||
#undef GET_GCC_BUILTIN_NAME
|
||||
assert(BuiltinName[0] && "Unknown LLVM intrinsic!");
|
||||
|
||||
Out << BuiltinName;
|
||||
WroteCallee = true;
|
||||
return false;
|
||||
}
|
||||
case Intrinsic::memory_barrier:
|
||||
Out << "__sync_syncronize()";
|
||||
return true;
|
||||
case Intrinsic::vastart:
|
||||
Out << "0; ";
|
||||
|
||||
Out << "va_start(*(va_list*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", ";
|
||||
// Output the last argument to the enclosing function.
|
||||
if (I.getParent()->getParent()->arg_empty()) {
|
||||
cerr << "The C backend does not currently support zero "
|
||||
<< "argument varargs functions, such as '"
|
||||
<< I.getParent()->getParent()->getName() << "'!\n";
|
||||
abort();
|
||||
}
|
||||
writeOperand(--I.getParent()->getParent()->arg_end());
|
||||
Out << ')';
|
||||
return true;
|
||||
case Intrinsic::vaend:
|
||||
if (!isa<ConstantPointerNull>(I.getOperand(1))) {
|
||||
Out << "0; va_end(*(va_list*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ')';
|
||||
} else {
|
||||
Out << "va_end(*(va_list*)0)";
|
||||
}
|
||||
return true;
|
||||
case Intrinsic::vacopy:
|
||||
Out << "0; ";
|
||||
Out << "va_copy(*(va_list*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", *(va_list*)";
|
||||
writeOperand(I.getOperand(2));
|
||||
Out << ')';
|
||||
return true;
|
||||
case Intrinsic::returnaddress:
|
||||
Out << "__builtin_return_address(";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ')';
|
||||
return true;
|
||||
case Intrinsic::frameaddress:
|
||||
Out << "__builtin_frame_address(";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ')';
|
||||
return true;
|
||||
case Intrinsic::powi:
|
||||
Out << "__builtin_powi(";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", ";
|
||||
writeOperand(I.getOperand(2));
|
||||
Out << ')';
|
||||
return true;
|
||||
case Intrinsic::setjmp:
|
||||
Out << "setjmp(*(jmp_buf*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ')';
|
||||
return true;
|
||||
case Intrinsic::longjmp:
|
||||
Out << "longjmp(*(jmp_buf*)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", ";
|
||||
writeOperand(I.getOperand(2));
|
||||
Out << ')';
|
||||
return true;
|
||||
case Intrinsic::prefetch:
|
||||
Out << "LLVM_PREFETCH((const void *)";
|
||||
writeOperand(I.getOperand(1));
|
||||
Out << ", ";
|
||||
writeOperand(I.getOperand(2));
|
||||
Out << ", ";
|
||||
writeOperand(I.getOperand(3));
|
||||
Out << ")";
|
||||
return true;
|
||||
case Intrinsic::stacksave:
|
||||
// Emit this as: Val = 0; *((void**)&Val) = __builtin_stack_save()
|
||||
// to work around GCC bugs (see PR1809).
|
||||
Out << "0; *((void**)&" << GetValueName(&I)
|
||||
<< ") = __builtin_stack_save()";
|
||||
return true;
|
||||
case Intrinsic::dbg_stoppoint: {
|
||||
// If we use writeOperand directly we get a "u" suffix which is rejected
|
||||
// by gcc.
|
||||
DbgStopPointInst &SPI = cast<DbgStopPointInst>(I);
|
||||
Out << "\n#line "
|
||||
<< SPI.getLine()
|
||||
<< " \"" << SPI.getDirectory()
|
||||
<< SPI.getFileName() << "\"\n";
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
//This converts the llvm constraint string to something gcc is expecting.
|
||||
//TODO: work out platform independent constraints and factor those out
|
||||
|
Loading…
Reference in New Issue
Block a user