From 5040eefbb758fb0e02125ad3a6bfb3dba13cb7fa Mon Sep 17 00:00:00 2001 From: Zack Rusin Date: Wed, 24 Oct 2007 07:49:24 -0400 Subject: Implement arl, lerp opcodes and do a first stab at if/endif handling and branching support. --- src/mesa/pipe/llvm/instructions.cpp | 304 +++++++++++++++++++++++------------- 1 file changed, 194 insertions(+), 110 deletions(-) (limited to 'src/mesa/pipe/llvm/instructions.cpp') diff --git a/src/mesa/pipe/llvm/instructions.cpp b/src/mesa/pipe/llvm/instructions.cpp index 78d2658724..66c34f8101 100644 --- a/src/mesa/pipe/llvm/instructions.cpp +++ b/src/mesa/pipe/llvm/instructions.cpp @@ -369,6 +369,11 @@ llvm::Value * Instructions::floor(llvm::Value *in) callFloor(z), callFloor(w)); } +llvm::Value * Instructions::arl(llvm::Value *in) +{ + return floor(in); +} + llvm::Value * Instructions::frc(llvm::Value *in) { llvm::Value *flr = floor(in); @@ -600,6 +605,34 @@ llvm::Function * Instructions::declarePrintf() return func_printf; } + +llvm::Value * Instructions::sgt(llvm::Value *in1, llvm::Value *in2) +{ + Constant *const1f = ConstantFP::get(Type::FloatTy, APFloat(1.000000e+00f)); + Constant *const0f = Constant::getNullValue(Type::FloatTy); + + ExtractElementInst *x1 = new ExtractElementInst(in1, unsigned(0), name("x1"), m_block); + ExtractElementInst *x2 = new ExtractElementInst(in2, unsigned(0), name("x2"), m_block); + FCmpInst *xcmp = new FCmpInst(FCmpInst::FCMP_OGT, x1, x2, name("xcmp"), m_block); + SelectInst *x = new SelectInst(xcmp, const1f, const0f, name("xsel"), m_block); + + ExtractElementInst *y1 = new ExtractElementInst(in1, unsigned(1), name("y1"), m_block); + ExtractElementInst *y2 = new ExtractElementInst(in2, unsigned(1), name("y2"), m_block); + FCmpInst *ycmp = new FCmpInst(FCmpInst::FCMP_OGT, y1, y2, name("ycmp"), m_block); + SelectInst *y = new SelectInst(ycmp, const1f, const0f, name("ysel"), m_block); + + ExtractElementInst *z1 = new ExtractElementInst(in1, unsigned(2), name("z1"), m_block); + ExtractElementInst *z2 = new ExtractElementInst(in2, unsigned(2), name("z2"), m_block); + FCmpInst *zcmp = new FCmpInst(FCmpInst::FCMP_OGT, z1, z2, name("zcmp"), m_block); + SelectInst *z = new SelectInst(zcmp, const1f, const0f, name("zsel"), m_block); + + ExtractElementInst *w1 = new ExtractElementInst(in1, unsigned(3), name("w1"), m_block); + ExtractElementInst *w2 = new ExtractElementInst(in2, unsigned(3), name("w2"), m_block); + FCmpInst *wcmp = new FCmpInst(FCmpInst::FCMP_OGT, w1, w2, name("wcmp"), m_block); + SelectInst *w = new SelectInst(wcmp, const1f, const0f, name("wsel"), m_block); + + return vectorFromVals(x, y, z, w); +} llvm::Value * Instructions::sge(llvm::Value *in1, llvm::Value *in2) { Constant *const1f = ConstantFP::get(Type::FloatTy, APFloat(1.000000e+00f)); @@ -713,6 +746,8 @@ llvm::Value * Instructions::abs(llvm::Value *in) } /* +FIXME: hand write the lit function. Currently it's +generated from: typedef __attribute__(( ocu_vector_type(4) )) float float4; extern float powf(float a, float b); @@ -744,7 +779,7 @@ clang --emit-llvm lit.c |llvm-as|opt -std-compile-opts|llvm2cpp -gen-contents -f */ Function* makeLitFunction(Module *mod) { -// Type Definitions + // Type Definitions std::vectorFuncTy_0_args; FuncTy_0_args.push_back(Type::FloatTy); FuncTy_0_args.push_back(Type::FloatTy); @@ -769,123 +804,172 @@ Function* makeLitFunction(Module *mod) { /*ParamAttrs=*/FuncTy_3_PAL); -// Function Declarations + // Function Declarations Function* func_approx = new Function( /*Type=*/FuncTy_0, /*Linkage=*/GlobalValue::ExternalLinkage, - /*Name=*/"approx", mod); + /*Name=*/"approx", mod); func_approx->setCallingConv(CallingConv::C); -Function* func_powf = new Function( - /*Type=*/FuncTy_0, - /*Linkage=*/GlobalValue::ExternalLinkage, - /*Name=*/"powf", mod); // (external, no body) -func_powf->setCallingConv(CallingConv::C); - -Function* func_lit = new Function( - /*Type=*/FuncTy_3, - /*Linkage=*/GlobalValue::ExternalLinkage, - /*Name=*/"lit", mod); -func_lit->setCallingConv(CallingConv::C); - -// Global Variable Declarations - - -// Constant Definitions -ConstantFP* const_float_4 = ConstantFP::get(Type::FloatTy, APFloat(-1.280000e+02f)); -ConstantFP* const_float_5 = ConstantFP::get(Type::FloatTy, APFloat(1.280000e+02f)); -Constant* const_float_6 = Constant::getNullValue(Type::FloatTy); -Constant* const_int32_7 = Constant::getNullValue(IntegerType::get(32)); -std::vector const_packed_8_elems; -ConstantFP* const_float_9 = ConstantFP::get(Type::FloatTy, APFloat(1.000000e+00f)); -const_packed_8_elems.push_back(const_float_9); -UndefValue* const_float_10 = UndefValue::get(Type::FloatTy); -const_packed_8_elems.push_back(const_float_10); -const_packed_8_elems.push_back(const_float_10); -const_packed_8_elems.push_back(const_float_9); -Constant* const_packed_8 = ConstantVector::get(VectorTy_2, const_packed_8_elems); -ConstantInt* const_int32_11 = ConstantInt::get(APInt(32, "1", 10)); -ConstantInt* const_int32_12 = ConstantInt::get(APInt(32, "3", 10)); -ConstantInt* const_int32_13 = ConstantInt::get(APInt(32, "2", 10)); -std::vector const_packed_14_elems; -const_packed_14_elems.push_back(const_float_9); -const_packed_14_elems.push_back(const_float_6); -const_packed_14_elems.push_back(const_float_6); -const_packed_14_elems.push_back(const_float_9); -Constant* const_packed_14 = ConstantVector::get(VectorTy_2, const_packed_14_elems); - -// Global Variable Definitions - -// Function Definitions - -// Function: approx (func_approx) -{ - Function::arg_iterator args = func_approx->arg_begin(); - Value* float_a = args++; - float_a->setName("a"); - Value* float_b = args++; - float_b->setName("b"); - - BasicBlock* label_entry = new BasicBlock("entry",func_approx,0); - - // Block entry (label_entry) - FCmpInst* int1_cmp = new FCmpInst(FCmpInst::FCMP_OLT, float_b, const_float_4, "cmp", label_entry); - SelectInst* float_b_addr_0 = new SelectInst(int1_cmp, const_float_4, float_b, "b.addr.0", label_entry); - FCmpInst* int1_cmp3 = new FCmpInst(FCmpInst::FCMP_OGT, float_b_addr_0, const_float_5, "cmp3", label_entry); - SelectInst* float_b_addr_1 = new SelectInst(int1_cmp3, const_float_5, float_b_addr_0, "b.addr.1", label_entry); - FCmpInst* int1_cmp7 = new FCmpInst(FCmpInst::FCMP_OLT, float_a, const_float_6, "cmp7", label_entry); - SelectInst* float_a_addr_0 = new SelectInst(int1_cmp7, const_float_6, float_a, "a.addr.0", label_entry); - std::vector float_call_params; - float_call_params.push_back(float_a_addr_0); - float_call_params.push_back(float_b_addr_1); - CallInst* float_call = new CallInst(func_powf, float_call_params.begin(), float_call_params.end(), "call", label_entry); - float_call->setCallingConv(CallingConv::C); - float_call->setTailCall(true); - new ReturnInst(float_call, label_entry); - -} - -// Function: lit (func_lit) -{ - Function::arg_iterator args = func_lit->arg_begin(); - Value* packed_tmp = args++; - packed_tmp->setName("tmp"); - - BasicBlock* label_entry_16 = new BasicBlock("entry",func_lit,0); - BasicBlock* label_ifthen = new BasicBlock("ifthen",func_lit,0); - BasicBlock* label_UnifiedReturnBlock = new BasicBlock("UnifiedReturnBlock",func_lit,0); - - // Block entry (label_entry_16) - ExtractElementInst* float_tmp7 = new ExtractElementInst(packed_tmp, const_int32_7, "tmp7", label_entry_16); - FCmpInst* int1_cmp_17 = new FCmpInst(FCmpInst::FCMP_OGT, float_tmp7, const_float_6, "cmp", label_entry_16); - new BranchInst(label_ifthen, label_UnifiedReturnBlock, int1_cmp_17, label_entry_16); - - // Block ifthen (label_ifthen) - InsertElementInst* packed_tmp12 = new InsertElementInst(const_packed_8, float_tmp7, const_int32_11, "tmp12", label_ifthen); - ExtractElementInst* float_tmp14 = new ExtractElementInst(packed_tmp, const_int32_11, "tmp14", label_ifthen); - ExtractElementInst* float_tmp16 = new ExtractElementInst(packed_tmp, const_int32_12, "tmp16", label_ifthen); - FCmpInst* int1_cmp_i = new FCmpInst(FCmpInst::FCMP_OLT, float_tmp16, const_float_4, "cmp.i", label_ifthen); - SelectInst* float_b_addr_0_i = new SelectInst(int1_cmp_i, const_float_4, float_tmp16, "b.addr.0.i", label_ifthen); - FCmpInst* int1_cmp3_i = new FCmpInst(FCmpInst::FCMP_OGT, float_b_addr_0_i, const_float_5, "cmp3.i", label_ifthen); - SelectInst* float_b_addr_1_i = new SelectInst(int1_cmp3_i, const_float_5, float_b_addr_0_i, "b.addr.1.i", label_ifthen); - FCmpInst* int1_cmp7_i = new FCmpInst(FCmpInst::FCMP_OLT, float_tmp14, const_float_6, "cmp7.i", label_ifthen); - SelectInst* float_a_addr_0_i = new SelectInst(int1_cmp7_i, const_float_6, float_tmp14, "a.addr.0.i", label_ifthen); - std::vector float_call_i_params; - float_call_i_params.push_back(float_a_addr_0_i); - float_call_i_params.push_back(float_b_addr_1_i); - CallInst* float_call_i = new CallInst(func_powf, float_call_i_params.begin(), float_call_i_params.end(), "call.i", label_ifthen); - float_call_i->setCallingConv(CallingConv::C); - float_call_i->setTailCall(true); - InsertElementInst* packed_tmp18 = new InsertElementInst(packed_tmp12, float_call_i, const_int32_13, "tmp18", label_ifthen); - new ReturnInst(packed_tmp18, label_ifthen); - - // Block UnifiedReturnBlock (label_UnifiedReturnBlock) - new ReturnInst(const_packed_14, label_UnifiedReturnBlock); - -} + Function* func_powf = new Function( + /*Type=*/FuncTy_0, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"powf", mod); // (external, no body) + func_powf->setCallingConv(CallingConv::C); + + Function* func_lit = new Function( + /*Type=*/FuncTy_3, + /*Linkage=*/GlobalValue::ExternalLinkage, + /*Name=*/"lit", mod); + func_lit->setCallingConv(CallingConv::C); + + // Global Variable Declarations + + + // Constant Definitions + ConstantFP* const_float_4 = ConstantFP::get(Type::FloatTy, APFloat(-1.280000e+02f)); + ConstantFP* const_float_5 = ConstantFP::get(Type::FloatTy, APFloat(1.280000e+02f)); + Constant* const_float_6 = Constant::getNullValue(Type::FloatTy); + Constant* const_int32_7 = Constant::getNullValue(IntegerType::get(32)); + std::vector const_packed_8_elems; + ConstantFP* const_float_9 = ConstantFP::get(Type::FloatTy, APFloat(1.000000e+00f)); + const_packed_8_elems.push_back(const_float_9); + UndefValue* const_float_10 = UndefValue::get(Type::FloatTy); + const_packed_8_elems.push_back(const_float_10); + const_packed_8_elems.push_back(const_float_10); + const_packed_8_elems.push_back(const_float_9); + Constant* const_packed_8 = ConstantVector::get(VectorTy_2, const_packed_8_elems); + ConstantInt* const_int32_11 = ConstantInt::get(APInt(32, "1", 10)); + ConstantInt* const_int32_12 = ConstantInt::get(APInt(32, "3", 10)); + ConstantInt* const_int32_13 = ConstantInt::get(APInt(32, "2", 10)); + std::vector const_packed_14_elems; + const_packed_14_elems.push_back(const_float_9); + const_packed_14_elems.push_back(const_float_6); + const_packed_14_elems.push_back(const_float_6); + const_packed_14_elems.push_back(const_float_9); + Constant* const_packed_14 = ConstantVector::get(VectorTy_2, const_packed_14_elems); + + // Global Variable Definitions + + // Function Definitions + + // Function: approx (func_approx) + { + Function::arg_iterator args = func_approx->arg_begin(); + Value* float_a = args++; + float_a->setName("a"); + Value* float_b = args++; + float_b->setName("b"); + + BasicBlock* label_entry = new BasicBlock("entry",func_approx,0); + + // Block entry (label_entry) + FCmpInst* int1_cmp = new FCmpInst(FCmpInst::FCMP_OLT, float_b, const_float_4, "cmp", label_entry); + SelectInst* float_b_addr_0 = new SelectInst(int1_cmp, const_float_4, float_b, "b.addr.0", label_entry); + FCmpInst* int1_cmp3 = new FCmpInst(FCmpInst::FCMP_OGT, float_b_addr_0, const_float_5, "cmp3", label_entry); + SelectInst* float_b_addr_1 = new SelectInst(int1_cmp3, const_float_5, float_b_addr_0, "b.addr.1", label_entry); + FCmpInst* int1_cmp7 = new FCmpInst(FCmpInst::FCMP_OLT, float_a, const_float_6, "cmp7", label_entry); + SelectInst* float_a_addr_0 = new SelectInst(int1_cmp7, const_float_6, float_a, "a.addr.0", label_entry); + std::vector float_call_params; + float_call_params.push_back(float_a_addr_0); + float_call_params.push_back(float_b_addr_1); + CallInst* float_call = new CallInst(func_powf, float_call_params.begin(), float_call_params.end(), "call", label_entry); + float_call->setCallingConv(CallingConv::C); + float_call->setTailCall(true); + new ReturnInst(float_call, label_entry); + } + + // Function: lit (func_lit) + { + Function::arg_iterator args = func_lit->arg_begin(); + Value* packed_tmp = args++; + packed_tmp->setName("tmp"); + + BasicBlock* label_entry_16 = new BasicBlock("entry",func_lit,0); + BasicBlock* label_ifthen = new BasicBlock("ifthen",func_lit,0); + BasicBlock* label_UnifiedReturnBlock = new BasicBlock("UnifiedReturnBlock",func_lit,0); + + // Block entry (label_entry_16) + ExtractElementInst* float_tmp7 = new ExtractElementInst(packed_tmp, const_int32_7, "tmp7", label_entry_16); + FCmpInst* int1_cmp_17 = new FCmpInst(FCmpInst::FCMP_OGT, float_tmp7, const_float_6, "cmp", label_entry_16); + new BranchInst(label_ifthen, label_UnifiedReturnBlock, int1_cmp_17, label_entry_16); + + // Block ifthen (label_ifthen) + InsertElementInst* packed_tmp12 = new InsertElementInst(const_packed_8, float_tmp7, const_int32_11, "tmp12", label_ifthen); + ExtractElementInst* float_tmp14 = new ExtractElementInst(packed_tmp, const_int32_11, "tmp14", label_ifthen); + ExtractElementInst* float_tmp16 = new ExtractElementInst(packed_tmp, const_int32_12, "tmp16", label_ifthen); + FCmpInst* int1_cmp_i = new FCmpInst(FCmpInst::FCMP_OLT, float_tmp16, const_float_4, "cmp.i", label_ifthen); + SelectInst* float_b_addr_0_i = new SelectInst(int1_cmp_i, const_float_4, float_tmp16, "b.addr.0.i", label_ifthen); + FCmpInst* int1_cmp3_i = new FCmpInst(FCmpInst::FCMP_OGT, float_b_addr_0_i, const_float_5, "cmp3.i", label_ifthen); + SelectInst* float_b_addr_1_i = new SelectInst(int1_cmp3_i, const_float_5, float_b_addr_0_i, "b.addr.1.i", label_ifthen); + FCmpInst* int1_cmp7_i = new FCmpInst(FCmpInst::FCMP_OLT, float_tmp14, const_float_6, "cmp7.i", label_ifthen); + SelectInst* float_a_addr_0_i = new SelectInst(int1_cmp7_i, const_float_6, float_tmp14, "a.addr.0.i", label_ifthen); + std::vector float_call_i_params; + float_call_i_params.push_back(float_a_addr_0_i); + float_call_i_params.push_back(float_b_addr_1_i); + CallInst* float_call_i = new CallInst(func_powf, float_call_i_params.begin(), float_call_i_params.end(), "call.i", label_ifthen); + float_call_i->setCallingConv(CallingConv::C); + float_call_i->setTailCall(true); + InsertElementInst* packed_tmp18 = new InsertElementInst(packed_tmp12, float_call_i, const_int32_13, "tmp18", label_ifthen); + new ReturnInst(packed_tmp18, label_ifthen); + + // Block UnifiedReturnBlock (label_UnifiedReturnBlock) + new ReturnInst(const_packed_14, label_UnifiedReturnBlock); + + } return func_lit; } +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 *yblock = new BasicBlock(name("yblock"), m_func,0); + //BasicBlock *zblock = new BasicBlock(name("zblock"), m_func,0); + //BasicBlock *wblock = new BasicBlock(name("wblock"), m_func,0); + + Constant *float0 = Constant::getNullValue(Type::FloatTy); + + ExtractElementInst *x = new ExtractElementInst(in, unsigned(0), name("extractx"), + m_block); + FCmpInst *xcmp = new FCmpInst(FCmpInst::FCMP_UNE, x, float0, + name("xcmp"), m_block); + new BranchInst(ifend, ifthen, xcmp, m_block); + //m_block = yblock; + + + m_block = ifthen; + m_ifStack.push(ifend); +} + +llvm::BasicBlock * Instructions::currentBlock() const +{ + return m_block; +} +void Instructions::endif() +{ + assert(!m_ifStack.empty()); + new BranchInst(m_ifStack.top(), m_block); + m_block = m_ifStack.top(); + m_ifStack.pop(); +} + +llvm::Value * Instructions::lerp(llvm::Value *in1, llvm::Value *in2, + llvm::Value *in3) +{ + llvm::Value *m = mul(in1, in2); + llvm::Value *vec1 = vectorFromVals(ConstantFP::get(Type::FloatTy, + APFloat(1.f)), + ConstantFP::get(Type::FloatTy, + APFloat(1.f)), + ConstantFP::get(Type::FloatTy, + APFloat(1.f)), + ConstantFP::get(Type::FloatTy, + APFloat(1.f))); + llvm::Value *s = sub(vec1, in1); + return add(m, mul(s, in3)); +} -- cgit v1.2.3