6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-12 17:32:19 +00:00
Code Issues Projects Releases Wiki Activity

add methods for analysis of call results and return nodes.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34738 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-02-28 07:09:40 +00:00
parent 638402b253
commit 66baf26fe0
2 changed files with 53 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
include/llvm/CodeGen/CallingConvLower.h
View File

@ -130,13 +130,21 @@ public:
return UsedRegs[Reg/32] & (1 << (Reg&31)); return UsedRegs[Reg/32] & (1 << (Reg&31));
} }
/// AnalyzeFormalArguments - Analyze an ISD::FORMAL_ARGUMENTS node,
/// incorporating info about the formals into this state.
void AnalyzeFormalArguments(SDNode *TheArgs, CCAssignFn Fn);
/// AnalyzeReturn - Analyze the returned values of an ISD::RET node,
/// incorporating info about the result values into this state.
void AnalyzeReturn(SDNode *TheRet, CCAssignFn Fn);
/// AnalyzeCallOperands - Analyze an ISD::CALL node, incorporating info /// AnalyzeCallOperands - Analyze an ISD::CALL node, incorporating info
/// about the passed values into this state. /// about the passed values into this state.
void AnalyzeCallOperands(SDNode *TheCall, CCAssignFn Fn); void AnalyzeCallOperands(SDNode *TheCall, CCAssignFn Fn);
/// AnalyzeFormalArguments - Analyze an ISD::FORMAL_ARGUMENTS node, /// AnalyzeCallResult - Analyze the return values of an ISD::CALL node,
/// incorporating info about the formals into this state. /// incorporating info about the passed values into this state.
void AnalyzeFormalArguments(SDNode *TheArgs, CCAssignFn Fn); void AnalyzeCallResult(SDNode *TheCall, CCAssignFn Fn);
/// getFirstUnallocated - Return the first unallocated register in the set, or /// getFirstUnallocated - Return the first unallocated register in the set, or

62
lib/CodeGen/SelectionDAG/CallingConvLower.cpp
View File

@ -37,22 +37,6 @@ void CCState::MarkAllocated(unsigned Reg) {
UsedRegs[Reg/32] |= 1 << (Reg&31); UsedRegs[Reg/32] |= 1 << (Reg&31);
} }
/// AnalyzeCallOperands - Analyze an ISD::CALL node, incorporating info
/// about the passed values into this state.
void CCState::AnalyzeCallOperands(SDNode *TheCall, CCAssignFn Fn) {
unsigned NumOps = (TheCall->getNumOperands() - 5) / 2;
for (unsigned i = 0; i != NumOps; ++i) {
MVT::ValueType ArgVT = TheCall->getOperand(5+2*i).getValueType();
SDOperand FlagOp = TheCall->getOperand(5+2*i+1);
unsigned ArgFlags =cast<ConstantSDNode>(FlagOp)->getValue();
if (Fn(i, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, *this)) {
cerr << "Call operand #" << i << " has unhandled type "
<< MVT::getValueTypeString(ArgVT) << "\n";
abort();
}
}
}
/// AnalyzeFormalArguments - Analyze an ISD::FORMAL_ARGUMENTS node, /// AnalyzeFormalArguments - Analyze an ISD::FORMAL_ARGUMENTS node,
/// incorporating info about the formals into this state. /// incorporating info about the formals into this state.
void CCState::AnalyzeFormalArguments(SDNode *TheArgs, CCAssignFn Fn) { void CCState::AnalyzeFormalArguments(SDNode *TheArgs, CCAssignFn Fn) {
@ -69,3 +53,49 @@ void CCState::AnalyzeFormalArguments(SDNode *TheArgs, CCAssignFn Fn) {
} }
} }
} }
/// AnalyzeReturn - Analyze the returned values of an ISD::RET node,
/// incorporating info about the result values into this state.
void CCState::AnalyzeReturn(SDNode *TheRet, CCAssignFn Fn) {
// Determine which register each value should be copied into.
for (unsigned i = 0, e = TheRet->getNumOperands() / 2; i != e; ++i) {
MVT::ValueType VT = TheRet->getOperand(i*2+1).getValueType();
if (Fn(i, VT, VT, CCValAssign::Full,
cast<ConstantSDNode>(TheRet->getOperand(i*2+2))->getValue(), *this)){
cerr << "Return operand #" << i << " has unhandled type "
<< MVT::getValueTypeString(VT) << "\n";
abort();
}
}
}
/// AnalyzeCallOperands - Analyze an ISD::CALL node, incorporating info
/// about the passed values into this state.
void CCState::AnalyzeCallOperands(SDNode *TheCall, CCAssignFn Fn) {
unsigned NumOps = (TheCall->getNumOperands() - 5) / 2;
for (unsigned i = 0; i != NumOps; ++i) {
MVT::ValueType ArgVT = TheCall->getOperand(5+2*i).getValueType();
SDOperand FlagOp = TheCall->getOperand(5+2*i+1);
unsigned ArgFlags =cast<ConstantSDNode>(FlagOp)->getValue();
if (Fn(i, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, *this)) {
cerr << "Call operand #" << i << " has unhandled type "
<< MVT::getValueTypeString(ArgVT) << "\n";
abort();
}
}
}
/// AnalyzeCallResult - Analyze the return values of an ISD::CALL node,
/// incorporating info about the passed values into this state.
void CCState::AnalyzeCallResult(SDNode *TheCall, CCAssignFn Fn) {
for (unsigned i = 0, e = TheCall->getNumValues() - 1; i != e; ++i) {
MVT::ValueType VT = TheCall->getValueType(i);
if (Fn(i, VT, VT, CCValAssign::Full, 0, *this)) {
cerr << "Call result #" << i << " has unhandled type "
<< MVT::getValueTypeString(VT) << "\n";
abort();
}
}
}