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Implement else ops.

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This commit is contained in:
Zack Rusin 2007-10-25 07:18:01 -04:00
parent 731352f03e
commit 7073ef9682
3 changed files with 18 additions and 2 deletions
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13
src/mesa/pipe/llvm/instructions.cpp
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@ -956,7 +956,7 @@ Function* makeLitFunction(Module *mod) {
void Instructions::ifop(llvm::Value *in)
{
BasicBlock *ifthen = new BasicBlock(name("ifthen"), m_func,0);
BasicBlock *ifend = new BasicBlock(name("ifend"), m_func,0);
BasicBlock *ifend = new BasicBlock(name("ifthenend"), m_func,0);
//BasicBlock *yblock = new BasicBlock(name("yblock"), m_func,0);
//BasicBlock *zblock = new BasicBlock(name("zblock"), m_func,0);
@ -981,6 +981,17 @@ llvm::BasicBlock * Instructions::currentBlock() const
return m_block;
}
void Instructions::elseop()
{
assert(!m_ifStack.empty());
BasicBlock *ifend = new BasicBlock(name("ifend"), m_func,0);
new BranchInst(ifend, m_block);
m_block = m_ifStack.top();
m_block->setName(name("ifelse"));
m_ifStack.pop();
m_ifStack.push(ifend);
}
void Instructions::endif()
{
assert(!m_ifStack.empty());

1
src/mesa/pipe/llvm/instructions.h
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@ -60,6 +60,7 @@ public:
llvm::Value *dph(llvm::Value *in1, llvm::Value *in2);
llvm::Value *dst(llvm::Value *in1, llvm::Value *in2);
void endif();
void elseop();
llvm::Value *ex2(llvm::Value *in);
llvm::Value *floor(llvm::Value *in);
llvm::Value *frc(llvm::Value *in);

6
src/mesa/pipe/llvm/llvmtgsi.cpp
View file

@ -459,7 +459,11 @@ translate_instruction(llvm::Module *module,
break;
case TGSI_OPCODE_REP:
break;
case TGSI_OPCODE_ELSE:
case TGSI_OPCODE_ELSE: {
instr->elseop();
storage->setCurrentBlock(instr->currentBlock());
return; //only state update
}
break;
case TGSI_OPCODE_ENDIF: {
instr->endif();