maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

First version of code to handle loads. Stub function for handling stores. 

llvm-svn: 12758
This commit is contained in:
Brian Gaeke 2004-04-07 17:29:37 +00:00
parent 989c04ab58
commit 6d62df5422
1 changed files with 39 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
llvm/lib/Target/SparcV8/InstSelectSimple.cpp
View File

@ -61,7 +61,9 @@ namespace {
void visitShiftInstruction(Instruction &I) { visitBinaryOperator(I); }
void visitSetCondInst(Instruction &I);
void visitCallInst(CallInst &I);
void visitReturnInst(ReturnInst &RI);
void visitReturnInst(ReturnInst &I);
void visitLoadInst(LoadInst &I);
void visitStoreInst(StoreInst &I);
void visitInstruction(Instruction &I) {
std::cerr << "Unhandled instruction: " << I;
@ -280,6 +282,42 @@ bool V8ISel::runOnFunction(Function &Fn) {
return true;
}
void V8ISel::visitLoadInst(LoadInst &I) {
unsigned DestReg = getReg (I);
unsigned PtrReg = getReg (I.getOperand (0));
switch (getClass (I.getType ())) {
case cByte:
if (I.getType ()->isSigned ())
BuildMI (BB, V8::LDSBmr, 1, DestReg).addReg (PtrReg).addSImm(0);
else
BuildMI (BB, V8::LDUBmr, 1, DestReg).addReg (PtrReg).addSImm(0);
return;
case cShort:
if (I.getType ()->isSigned ())
BuildMI (BB, V8::LDSHmr, 1, DestReg).addReg (PtrReg).addSImm(0);
else
BuildMI (BB, V8::LDUHmr, 1, DestReg).addReg (PtrReg).addSImm(0);
return;
case cInt:
BuildMI (BB, V8::LDmr, 1, DestReg).addReg (PtrReg).addSImm(0);
return;
case cLong:
BuildMI (BB, V8::LDDmr, 1, DestReg).addReg (PtrReg).addSImm(0);
return;
default:
std::cerr << "Load instruction not handled: " << I;
abort ();
return;
}
}
void V8ISel::visitStoreInst(StoreInst &I) {
unsigned SrcReg = getReg (I.getOperand (0));
unsigned PtrReg = getReg (I.getOperand (1));
std::cerr << "Store instruction not handled: " << I;
abort ();
}
void V8ISel::visitCallInst(CallInst &I) {
assert (I.getNumOperands () < 8
&& "Can't handle pushing excess call args on the stack yet");