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authorJosé Fonseca <jrfonseca@tungstengraphics.com>2008-02-18 20:05:06 +0900
committerJosé Fonseca <jrfonseca@tungstengraphics.com>2008-02-18 20:05:06 +0900
commit3f3b09d6d86cfd277c5837d15466ee703897aa3d (patch)
tree61d639bac7f5542e907ad1d5560713ed786172b8 /src/gallium/auxiliary/gallivm/instructions.cpp
parent687a8b96ef13658bbe779d0011ce1144844f1972 (diff)
Rename llvm -> gallivm.
Following the directory == library name policy simplifies the build system.
Diffstat (limited to 'src/gallium/auxiliary/gallivm/instructions.cpp')
-rw-r--r--src/gallium/auxiliary/gallivm/instructions.cpp889
1 files changed, 889 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/gallivm/instructions.cpp b/src/gallium/auxiliary/gallivm/instructions.cpp
new file mode 100644
index 0000000000..55d39fa5f1
--- /dev/null
+++ b/src/gallium/auxiliary/gallivm/instructions.cpp
@@ -0,0 +1,889 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+ /*
+ * Authors:
+ * Zack Rusin zack@tungstengraphics.com
+ */
+#ifdef MESA_LLVM
+
+#include "instructions.h"
+
+#include "storage.h"
+
+#include <llvm/CallingConv.h>
+#include <llvm/Constants.h>
+#include <llvm/DerivedTypes.h>
+#include <llvm/Function.h>
+#include <llvm/InstrTypes.h>
+#include <llvm/Instructions.h>
+#include <llvm/ParameterAttributes.h>
+
+#include <sstream>
+#include <fstream>
+#include <iostream>
+
+using namespace llvm;
+
+#include "gallivm_builtins.cpp"
+
+static inline std::string createFuncName(int label)
+{
+ std::ostringstream stream;
+ stream << "function";
+ stream << label;
+ return stream.str();
+}
+
+Instructions::Instructions(llvm::Module *mod, llvm::Function *func, llvm::BasicBlock *block,
+ Storage *storage)
+ : m_mod(mod), m_func(func), m_builder(block), m_idx(0),
+ m_storage(storage)
+{
+ m_floatVecType = VectorType::get(Type::FloatTy, 4);
+
+ m_llvmFSqrt = 0;
+ m_llvmFAbs = 0;
+ m_llvmPow = 0;
+ m_llvmFloor = 0;
+ m_llvmFlog = 0;
+ m_llvmLit = 0;
+ m_fmtPtr = 0;
+
+ createGallivmBuiltins(m_mod);
+}
+
+llvm::Value * Instructions::add(llvm::Value *in1, llvm::Value *in2)
+{
+ return m_builder.CreateAdd(in1, in2, name("add"));
+}
+
+llvm::Value * Instructions::madd(llvm::Value *in1, llvm::Value *in2,
+ llvm::Value *in3)
+{
+ Value *mulRes = mul(in1, in2);
+ return add(mulRes, in3);
+}
+
+llvm::Value * Instructions::mul(llvm::Value *in1, llvm::Value *in2)
+{
+ return m_builder.CreateMul(in1, in2, name("mul"));
+}
+
+const char * Instructions::name(const char *prefix)
+{
+ ++m_idx;
+ snprintf(m_name, 32, "%s%d", prefix, m_idx);
+ return m_name;
+}
+
+llvm::Value * Instructions::dp3(llvm::Value *in1, llvm::Value *in2)
+{
+ Value *mulRes = mul(in1, in2);
+ Value *x = m_builder.CreateExtractElement(mulRes,
+ m_storage->constantInt(0),
+ name("extractx"));
+ Value *y = m_builder.CreateExtractElement(mulRes,
+ m_storage->constantInt(1),
+ name("extracty"));
+ Value *z = m_builder.CreateExtractElement(mulRes,
+ m_storage->constantInt(2),
+ name("extractz"));
+ Value *xy = m_builder.CreateAdd(x, y,name("xy"));
+ Value *dot3 = m_builder.CreateAdd(xy, z, name("dot3"));
+ return vectorFromVals(dot3, dot3, dot3, dot3);
+}
+
+llvm::Value *Instructions::callFSqrt(llvm::Value *val)
+{
+ if (!m_llvmFSqrt) {
+ // predeclare the intrinsic
+ std::vector<const Type*> fsqrtArgs;
+ fsqrtArgs.push_back(Type::FloatTy);
+ ParamAttrsList *fsqrtPal = 0;
+ FunctionType* fsqrtType = FunctionType::get(
+ /*Result=*/Type::FloatTy,
+ /*Params=*/fsqrtArgs,
+ /*isVarArg=*/false);
+ m_llvmFSqrt = new Function(
+ /*Type=*/fsqrtType,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Name=*/"llvm.sqrt.f32", m_mod);
+ m_llvmFSqrt->setCallingConv(CallingConv::C);
+ m_llvmFSqrt->setParamAttrs(fsqrtPal);
+ }
+ CallInst *call = m_builder.CreateCall(m_llvmFSqrt, val,
+ name("sqrt"));
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::rsq(llvm::Value *in1)
+{
+ Value *x = m_builder.CreateExtractElement(in1,
+ m_storage->constantInt(0),
+ name("extractx"));
+ Value *abs = callFAbs(x);
+ Value *sqrt = callFSqrt(abs);
+
+ Value *rsqrt = m_builder.CreateFDiv(ConstantFP::get(Type::FloatTy,
+ APFloat(1.f)),
+ sqrt,
+ name("rsqrt"));
+ return vectorFromVals(rsqrt, rsqrt, rsqrt, rsqrt);
+}
+
+llvm::Value * Instructions::vectorFromVals(llvm::Value *x, llvm::Value *y,
+ llvm::Value *z, llvm::Value *w)
+{
+ Constant *const_vec = Constant::getNullValue(m_floatVecType);
+ Value *res = m_builder.CreateInsertElement(const_vec, x,
+ m_storage->constantInt(0),
+ name("vecx"));
+ res = m_builder.CreateInsertElement(res, y, m_storage->constantInt(1),
+ name("vecxy"));
+ res = m_builder.CreateInsertElement(res, z, m_storage->constantInt(2),
+ name("vecxyz"));
+ if (w)
+ res = m_builder.CreateInsertElement(res, w, m_storage->constantInt(3),
+ name("vecxyzw"));
+ return res;
+}
+
+llvm::Value *Instructions::callFAbs(llvm::Value *val)
+{
+ if (!m_llvmFAbs) {
+ // predeclare the intrinsic
+ std::vector<const Type*> fabsArgs;
+ fabsArgs.push_back(Type::FloatTy);
+ ParamAttrsList *fabsPal = 0;
+ FunctionType* fabsType = FunctionType::get(
+ /*Result=*/Type::FloatTy,
+ /*Params=*/fabsArgs,
+ /*isVarArg=*/false);
+ m_llvmFAbs = new Function(
+ /*Type=*/fabsType,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Name=*/"fabs", m_mod);
+ m_llvmFAbs->setCallingConv(CallingConv::C);
+ m_llvmFAbs->setParamAttrs(fabsPal);
+ }
+ CallInst *call = m_builder.CreateCall(m_llvmFAbs, val,
+ name("fabs"));
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::lit(llvm::Value *in)
+{
+ if (!m_llvmLit) {
+ m_llvmLit = m_mod->getFunction("lit");
+ }
+ CallInst *call = m_builder.CreateCall(m_llvmLit, in, name("litres"));
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::sub(llvm::Value *in1, llvm::Value *in2)
+{
+ Value *res = m_builder.CreateSub(in1, in2, name("sub"));
+ return res;
+}
+
+llvm::Value * Instructions::callPow(llvm::Value *val1, llvm::Value *val2)
+{
+ if (!m_llvmPow) {
+ // predeclare the intrinsic
+ std::vector<const Type*> powArgs;
+ powArgs.push_back(Type::FloatTy);
+ powArgs.push_back(Type::FloatTy);
+ ParamAttrsList *powPal = 0;
+ FunctionType* powType = FunctionType::get(
+ /*Result=*/Type::FloatTy,
+ /*Params=*/powArgs,
+ /*isVarArg=*/false);
+ m_llvmPow = new Function(
+ /*Type=*/powType,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Name=*/"llvm.pow.f32", m_mod);
+ m_llvmPow->setCallingConv(CallingConv::C);
+ m_llvmPow->setParamAttrs(powPal);
+ }
+ std::vector<Value*> params;
+ params.push_back(val1);
+ params.push_back(val2);
+ CallInst *call = m_builder.CreateCall(m_llvmPow, params.begin(), params.end(),
+ name("pow"));
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::pow(llvm::Value *in1, llvm::Value *in2)
+{
+ Value *x1 = m_builder.CreateExtractElement(in1,
+ m_storage->constantInt(0),
+ name("x1"));
+ Value *x2 = m_builder.CreateExtractElement(in2,
+ m_storage->constantInt(0),
+ name("x2"));
+ llvm::Value *val = callPow(x1, x2);
+ return vectorFromVals(val, val, val, val);
+}
+
+llvm::Value * Instructions::rcp(llvm::Value *in1)
+{
+ Value *x1 = m_builder.CreateExtractElement(in1,
+ m_storage->constantInt(0),
+ name("x1"));
+ Value *res = m_builder.CreateFDiv(ConstantFP::get(Type::FloatTy,
+ APFloat(1.f)),
+ x1, name("rcp"));
+ return vectorFromVals(res, res, res, res);
+}
+
+llvm::Value * Instructions::dp4(llvm::Value *in1, llvm::Value *in2)
+{
+ Value *mulRes = mul(in1, in2);
+ std::vector<llvm::Value*> vec = extractVector(mulRes);
+ Value *xy = m_builder.CreateAdd(vec[0], vec[1], name("xy"));
+ Value *xyz = m_builder.CreateAdd(xy, vec[2], name("xyz"));
+ Value *dot4 = m_builder.CreateAdd(xyz, vec[3], name("dot4"));
+ return vectorFromVals(dot4, dot4, dot4, dot4);
+}
+
+llvm::Value * Instructions::dph(llvm::Value *in1, llvm::Value *in2)
+{
+ Value *mulRes = mul(in1, in2);
+ std::vector<llvm::Value*> vec1 = extractVector(mulRes);
+ Value *xy = m_builder.CreateAdd(vec1[0], vec1[1], name("xy"));
+ Value *xyz = m_builder.CreateAdd(xy, vec1[2], name("xyz"));
+ Value *dph = m_builder.CreateAdd(xyz, vec1[3], name("dph"));
+ return vectorFromVals(dph, dph, dph, dph);
+}
+
+llvm::Value * Instructions::dst(llvm::Value *in1, llvm::Value *in2)
+{
+ Value *y1 = m_builder.CreateExtractElement(in1,
+ m_storage->constantInt(1),
+ name("y1"));
+ Value *z = m_builder.CreateExtractElement(in1,
+ m_storage->constantInt(2),
+ name("z"));
+ Value *y2 = m_builder.CreateExtractElement(in2,
+ m_storage->constantInt(1),
+ name("y2"));
+ Value *w = m_builder.CreateExtractElement(in2,
+ m_storage->constantInt(3),
+ name("w"));
+ Value *ry = m_builder.CreateMul(y1, y2, name("tyuy"));
+ return vectorFromVals(ConstantFP::get(Type::FloatTy, APFloat(1.f)),
+ ry, z, w);
+}
+
+llvm::Value * Instructions::ex2(llvm::Value *in)
+{
+ llvm::Value *val = callPow(ConstantFP::get(Type::FloatTy, APFloat(2.f)),
+ m_builder.CreateExtractElement(
+ in, m_storage->constantInt(0),
+ name("x1")));
+ return vectorFromVals(val, val, val, val);
+}
+
+llvm::Value * Instructions::callFloor(llvm::Value *val)
+{
+ if (!m_llvmFloor) {
+ // predeclare the intrinsic
+ std::vector<const Type*> floorArgs;
+ floorArgs.push_back(Type::FloatTy);
+ ParamAttrsList *floorPal = 0;
+ FunctionType* floorType = FunctionType::get(
+ /*Result=*/Type::FloatTy,
+ /*Params=*/floorArgs,
+ /*isVarArg=*/false);
+ m_llvmFloor = new Function(
+ /*Type=*/floorType,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Name=*/"floorf", m_mod);
+ m_llvmFloor->setCallingConv(CallingConv::C);
+ m_llvmFloor->setParamAttrs(floorPal);
+ }
+ CallInst *call = m_builder.CreateCall(m_llvmFloor, val,
+ name("floorf"));
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::floor(llvm::Value *in)
+{
+ std::vector<llvm::Value*> vec = extractVector(in);
+ return vectorFromVals(callFloor(vec[0]), callFloor(vec[1]),
+ callFloor(vec[2]), callFloor(vec[3]));
+}
+
+llvm::Value * Instructions::arl(llvm::Value *in)
+{
+ return floor(in);
+}
+
+llvm::Value * Instructions::frc(llvm::Value *in)
+{
+ llvm::Value *flr = floor(in);
+ return sub(in, flr);
+}
+
+llvm::Value * Instructions::callFLog(llvm::Value *val)
+{
+ if (!m_llvmFlog) {
+ // predeclare the intrinsic
+ std::vector<const Type*> flogArgs;
+ flogArgs.push_back(Type::FloatTy);
+ ParamAttrsList *flogPal = 0;
+ FunctionType* flogType = FunctionType::get(
+ /*Result=*/Type::FloatTy,
+ /*Params=*/flogArgs,
+ /*isVarArg=*/false);
+ m_llvmFlog = new Function(
+ /*Type=*/flogType,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Name=*/"logf", m_mod);
+ m_llvmFlog->setCallingConv(CallingConv::C);
+ m_llvmFlog->setParamAttrs(flogPal);
+ }
+ CallInst *call = m_builder.CreateCall(m_llvmFlog, val,
+ name("logf"));
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::lg2(llvm::Value *in)
+{
+ std::vector<llvm::Value*> vec = extractVector(in);
+ llvm::Value *const_vec = constVector(1.442695f, 1.442695f,
+ 1.442695f, 1.442695f);
+ return mul(vectorFromVals(callFLog(vec[0]), callFLog(vec[1]),
+ callFLog(vec[2]), callFLog(vec[3])), const_vec);
+}
+
+llvm::Value * Instructions::min(llvm::Value *in1, llvm::Value *in2)
+{
+ std::vector<llvm::Value*> vec1 = extractVector(in1);
+ std::vector<llvm::Value*> vec2 = extractVector(in2);
+
+ Value *xcmp = m_builder.CreateFCmpOLT(vec1[0], vec2[0], name("xcmp"));
+ Value *selx = m_builder.CreateSelect(xcmp, vec1[0], vec2[0],
+ name("selx"));
+
+ Value *ycmp = m_builder.CreateFCmpOLT(vec1[1], vec2[1], name("ycmp"));
+ Value *sely = m_builder.CreateSelect(ycmp, vec1[1], vec2[1],
+ name("sely"));
+
+ Value *zcmp = m_builder.CreateFCmpOLT(vec1[2], vec2[2], name("zcmp"));
+ Value *selz = m_builder.CreateSelect(zcmp, vec1[2], vec2[2],
+ name("selz"));
+
+ Value *wcmp = m_builder.CreateFCmpOLT(vec1[3], vec2[3], name("wcmp"));
+ Value *selw = m_builder.CreateSelect(wcmp, vec1[3], vec2[3],
+ name("selw"));
+
+ return vectorFromVals(selx, sely, selz, selw);
+}
+
+llvm::Value * Instructions::max(llvm::Value *in1, llvm::Value *in2)
+{
+ std::vector<llvm::Value*> vec1 = extractVector(in1);
+ std::vector<llvm::Value*> vec2 = extractVector(in2);
+
+ Value *xcmp = m_builder.CreateFCmpOGT(vec1[0], vec2[0],
+ name("xcmp"));
+ Value *selx = m_builder.CreateSelect(xcmp, vec1[0], vec2[0],
+ name("selx"));
+
+ Value *ycmp = m_builder.CreateFCmpOGT(vec1[1], vec2[1],
+ name("ycmp"));
+ Value *sely = m_builder.CreateSelect(ycmp, vec1[1], vec2[1],
+ name("sely"));
+
+ Value *zcmp = m_builder.CreateFCmpOGT(vec1[2], vec2[2],
+ name("zcmp"));
+ Value *selz = m_builder.CreateSelect(zcmp, vec1[2], vec2[2],
+ name("selz"));
+
+ Value *wcmp = m_builder.CreateFCmpOGT(vec1[3], vec2[3],
+ name("wcmp"));
+ Value *selw = m_builder.CreateSelect(wcmp, vec1[3], vec2[3],
+ name("selw"));
+
+ return vectorFromVals(selx, sely, selz, selw);
+}
+
+void Instructions::printVector(llvm::Value *val)
+{
+ static const char *frmt = "Vector is [%f, %f, %f, %f]\x0A";
+
+ if (!m_fmtPtr) {
+ Constant *format = ConstantArray::get(frmt, true);
+ ArrayType *arrayTy = ArrayType::get(IntegerType::get(8), strlen(frmt) + 1);
+ GlobalVariable* globalFormat = new GlobalVariable(
+ /*Type=*/arrayTy,
+ /*isConstant=*/true,
+ /*Linkage=*/GlobalValue::InternalLinkage,
+ /*Initializer=*/0, // has initializer, specified below
+ /*Name=*/name(".str"),
+ m_mod);
+ globalFormat->setInitializer(format);
+
+ Constant* const_int0 = Constant::getNullValue(IntegerType::get(32));
+ std::vector<Constant*> const_ptr_21_indices;
+ const_ptr_21_indices.push_back(const_int0);
+ const_ptr_21_indices.push_back(const_int0);
+ m_fmtPtr = ConstantExpr::getGetElementPtr(globalFormat,
+ &const_ptr_21_indices[0], const_ptr_21_indices.size());
+ }
+
+ Function *func_printf = m_mod->getFunction("printf");
+ if (!func_printf)
+ func_printf = declarePrintf();
+ assert(func_printf);
+ std::vector<llvm::Value*> vec = extractVector(val);
+ Value *dx = m_builder.CreateFPExt(vec[0], Type::DoubleTy, name("dx"));
+ Value *dy = m_builder.CreateFPExt(vec[1], Type::DoubleTy, name("dy"));
+ Value *dz = m_builder.CreateFPExt(vec[2], Type::DoubleTy, name("dz"));
+ Value *dw = m_builder.CreateFPExt(vec[3], Type::DoubleTy, name("dw"));
+ std::vector<Value*> params;
+ params.push_back(m_fmtPtr);
+ params.push_back(dx);
+ params.push_back(dy);
+ params.push_back(dz);
+ params.push_back(dw);
+ CallInst *call = m_builder.CreateCall(func_printf, params.begin(), params.end(),
+ name("printf"));
+ call->setCallingConv(CallingConv::C);
+ call->setTailCall(true);
+}
+
+llvm::Function * Instructions::declarePrintf()
+{
+ std::vector<const Type*> args;
+ ParamAttrsList *params = 0;
+ FunctionType* funcTy = FunctionType::get(
+ /*Result=*/IntegerType::get(32),
+ /*Params=*/args,
+ /*isVarArg=*/true);
+ Function* func_printf = new Function(
+ /*Type=*/funcTy,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Name=*/"printf", m_mod);
+ func_printf->setCallingConv(CallingConv::C);
+ func_printf->setParamAttrs(params);
+ 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);
+
+ std::vector<llvm::Value*> vec1 = extractVector(in1);
+ std::vector<llvm::Value*> vec2 = extractVector(in2);
+ Value *xcmp = m_builder.CreateFCmpOGT(vec1[0], vec2[0], name("xcmp"));
+ Value *x = m_builder.CreateSelect(xcmp, const1f, const0f, name("xsel"));
+
+ Value *ycmp = m_builder.CreateFCmpOGT(vec1[1], vec2[1], name("ycmp"));
+ Value *y = m_builder.CreateSelect(ycmp, const1f, const0f, name("ysel"));
+
+ Value *zcmp = m_builder.CreateFCmpOGT(vec1[2], vec2[2], name("zcmp"));
+ Value *z = m_builder.CreateSelect(zcmp, const1f, const0f, name("zsel"));
+
+ Value *wcmp = m_builder.CreateFCmpOGT(vec1[3], vec2[3], name("wcmp"));
+ Value *w = m_builder.CreateSelect(wcmp, const1f, const0f, name("wsel"));
+
+ 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));
+ Constant *const0f = Constant::getNullValue(Type::FloatTy);
+
+ std::vector<llvm::Value*> vec1 = extractVector(in1);
+ std::vector<llvm::Value*> vec2 = extractVector(in2);
+
+ Value *xcmp = m_builder.CreateFCmpOGE(vec1[0], vec2[0], name("xcmp"));
+ Value *x = m_builder.CreateSelect(xcmp, const1f, const0f, name("xsel"));
+
+ Value *ycmp = m_builder.CreateFCmpOGE(vec1[1], vec2[1], name("ycmp"));
+ Value *y = m_builder.CreateSelect(ycmp, const1f, const0f, name("ysel"));
+
+ Value *zcmp = m_builder.CreateFCmpOGE(vec1[2], vec2[2], name("zcmp"));
+ Value *z = m_builder.CreateSelect(zcmp, const1f, const0f, name("zsel"));
+
+ Value *wcmp = m_builder.CreateFCmpOGE(vec1[3], vec2[3], name("wcmp"));
+ Value *w = m_builder.CreateSelect(wcmp, const1f, const0f, name("wsel"));
+
+ return vectorFromVals(x, y, z, w);
+}
+
+
+llvm::Value * Instructions::slt(llvm::Value *in1, llvm::Value *in2)
+{
+ Constant *const1f = ConstantFP::get(Type::FloatTy, APFloat(1.000000e+00f));
+ Constant *const0f = Constant::getNullValue(Type::FloatTy);
+
+ std::vector<llvm::Value*> vec1 = extractVector(in1);
+ std::vector<llvm::Value*> vec2 = extractVector(in2);
+
+ Value *xcmp = m_builder.CreateFCmpOLT(vec1[0], vec2[0], name("xcmp"));
+ Value *x = m_builder.CreateSelect(xcmp, const1f, const0f, name("xsel"));
+
+ Value *ycmp = m_builder.CreateFCmpOLT(vec1[1], vec2[1], name("ycmp"));
+ Value *y = m_builder.CreateSelect(ycmp, const1f, const0f, name("ysel"));
+
+ Value *zcmp = m_builder.CreateFCmpOLT(vec1[2], vec2[2], name("zcmp"));
+ Value *z = m_builder.CreateSelect(zcmp, const1f, const0f, name("zsel"));
+
+ Value *wcmp = m_builder.CreateFCmpOLT(vec1[3], vec2[3], name("wcmp"));
+ Value *w = m_builder.CreateSelect(wcmp, const1f, const0f, name("wsel"));
+
+ return vectorFromVals(x, y, z, w);
+}
+
+llvm::Value * Instructions::cross(llvm::Value *in1, llvm::Value *in2)
+{
+ Value *x1 = m_builder.CreateExtractElement(in1,
+ m_storage->constantInt(0),
+ name("x1"));
+ Value *y1 = m_builder.CreateExtractElement(in1,
+ m_storage->constantInt(1),
+ name("y1"));
+ Value *z1 = m_builder.CreateExtractElement(in1,
+ m_storage->constantInt(2),
+ name("z1"));
+
+ Value *x2 = m_builder.CreateExtractElement(in2,
+ m_storage->constantInt(0),
+ name("x2"));
+ Value *y2 = m_builder.CreateExtractElement(in2,
+ m_storage->constantInt(1),
+ name("y2"));
+ Value *z2 = m_builder.CreateExtractElement(in2,
+ m_storage->constantInt(2),
+ name("z2"));
+ Value *y1z2 = mul(y1, z2);
+ Value *z1y2 = mul(z1, y2);
+
+ Value *z1x2 = mul(z1, x2);
+ Value *x1z2 = mul(x1, z2);
+
+ Value *x1y2 = mul(x1, y2);
+ Value *y1x2 = mul(y1, x2);
+
+ return vectorFromVals(sub(y1z2, z1y2), sub(z1x2, x1z2), sub(x1y2, y1x2));
+}
+
+
+llvm::Value * Instructions::abs(llvm::Value *in)
+{
+ std::vector<llvm::Value*> vec = extractVector(in);
+ Value *xabs = callFAbs(vec[0]);
+ Value *yabs = callFAbs(vec[1]);
+ Value *zabs = callFAbs(vec[2]);
+ Value *wabs = callFAbs(vec[3]);
+ return vectorFromVals(xabs, yabs, zabs, wabs);
+}
+
+void Instructions::ifop(llvm::Value *in)
+{
+ BasicBlock *ifthen = new BasicBlock(name("ifthen"), 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);
+ //BasicBlock *wblock = new BasicBlock(name("wblock"), m_func,0);
+
+ Constant *float0 = Constant::getNullValue(Type::FloatTy);
+
+ Value *x = m_builder.CreateExtractElement(in, m_storage->constantInt(0),
+ name("extractx"));
+ Value *xcmp = m_builder.CreateFCmpUNE(x, float0, name("xcmp"));
+ m_builder.CreateCondBr(xcmp, ifthen, ifend);
+ //m_builder.SetInsertPoint(yblock);
+
+ m_builder.SetInsertPoint(ifthen);
+ m_ifStack.push(ifend);
+}
+
+llvm::BasicBlock * Instructions::currentBlock() const
+{
+ return m_builder.GetInsertBlock();
+}
+
+void Instructions::elseop()
+{
+ assert(!m_ifStack.empty());
+ BasicBlock *ifend = new BasicBlock(name("ifend"), m_func,0);
+ m_builder.CreateBr(ifend);
+ m_builder.SetInsertPoint(m_ifStack.top());
+ currentBlock()->setName(name("ifelse"));
+ m_ifStack.pop();
+ m_ifStack.push(ifend);
+}
+
+void Instructions::endif()
+{
+ assert(!m_ifStack.empty());
+ m_builder.CreateBr(m_ifStack.top());
+ m_builder.SetInsertPoint(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 = constVector(1.f, 1.f, 1.f, 1.f);
+ llvm::Value *s = sub(vec1, in1);
+ return add(m, mul(s, in3));
+}
+
+void Instructions::beginLoop()
+{
+ BasicBlock *begin = new BasicBlock(name("loop"), m_func,0);
+ BasicBlock *end = new BasicBlock(name("endloop"), m_func,0);
+
+ m_builder.CreateBr(begin);
+ Loop loop;
+ loop.begin = begin;
+ loop.end = end;
+ m_builder.SetInsertPoint(begin);
+ m_loopStack.push(loop);
+}
+
+void Instructions::endLoop()
+{
+ assert(!m_loopStack.empty());
+ Loop loop = m_loopStack.top();
+ m_builder.CreateBr(loop.begin);
+ loop.end->moveAfter(currentBlock());
+ m_builder.SetInsertPoint(loop.end);
+ m_loopStack.pop();
+}
+
+void Instructions::brk()
+{
+ assert(!m_loopStack.empty());
+ BasicBlock *unr = new BasicBlock(name("unreachable"), m_func,0);
+ m_builder.CreateBr(m_loopStack.top().end);
+ m_builder.SetInsertPoint(unr);
+}
+
+llvm::Value * Instructions::trunc(llvm::Value *in)
+{
+ std::vector<llvm::Value*> vec = extractVector(in);
+ Value *icastx = m_builder.CreateFPToSI(vec[0], IntegerType::get(32),
+ name("ftoix"));
+ Value *icasty = m_builder.CreateFPToSI(vec[1], IntegerType::get(32),
+ name("ftoiy"));
+ Value *icastz = m_builder.CreateFPToSI(vec[2], IntegerType::get(32),
+ name("ftoiz"));
+ Value *icastw = m_builder.CreateFPToSI(vec[3], IntegerType::get(32),
+ name("ftoiw"));
+ Value *fx = m_builder.CreateSIToFP(icastx, Type::FloatTy,
+ name("fx"));
+ Value *fy = m_builder.CreateSIToFP(icasty, Type::FloatTy,
+ name("fy"));
+ Value *fz = m_builder.CreateSIToFP(icastz, Type::FloatTy,
+ name("fz"));
+ Value *fw = m_builder.CreateSIToFP(icastw, Type::FloatTy,
+ name("fw"));
+ return vectorFromVals(fx, fy, fz, fw);
+}
+
+void Instructions::end()
+{
+ m_builder.CreateRetVoid();
+}
+
+void Instructions::cal(int label, llvm::Value *input)
+{
+ std::vector<Value*> params;
+ params.push_back(input);
+ llvm::Function *func = findFunction(label);
+
+ m_builder.CreateCall(func, params.begin(), params.end());
+}
+
+llvm::Function * Instructions::declareFunc(int label)
+{
+ PointerType *vecPtr = PointerType::getUnqual(m_floatVecType);
+ std::vector<const Type*> args;
+ args.push_back(vecPtr);
+ args.push_back(vecPtr);
+ args.push_back(vecPtr);
+ args.push_back(vecPtr);
+ ParamAttrsList *params = 0;
+ FunctionType *funcType = FunctionType::get(
+ /*Result=*/Type::VoidTy,
+ /*Params=*/args,
+ /*isVarArg=*/false);
+ std::string name = createFuncName(label);
+ Function *func = new Function(
+ /*Type=*/funcType,
+ /*Linkage=*/GlobalValue::ExternalLinkage,
+ /*Name=*/name.c_str(), m_mod);
+ func->setCallingConv(CallingConv::C);
+ func->setParamAttrs(params);
+ return func;
+}
+
+void Instructions::bgnSub(unsigned label)
+{
+ llvm::Function *func = findFunction(label);
+
+ Function::arg_iterator args = func->arg_begin();
+ Value *ptr_INPUT = args++;
+ ptr_INPUT->setName("INPUT");
+ m_storage->pushArguments(ptr_INPUT);
+
+ llvm::BasicBlock *entry = new BasicBlock("entry", func, 0);
+
+ m_func = func;
+ m_builder.SetInsertPoint(entry);
+}
+
+void Instructions::endSub()
+{
+ m_func = 0;
+ m_builder.SetInsertPoint(0);
+}
+
+llvm::Function * Instructions::findFunction(int label)
+{
+ llvm::Function *func = m_functions[label];
+ if (!func) {
+ func = declareFunc(label);
+ m_functions[label] = func;
+ }
+ return func;
+}
+
+llvm::Value * Instructions::constVector(float x, float y, float z, float w)
+{
+ std::vector<Constant*> vec(4);
+ vec[0] = ConstantFP::get(Type::FloatTy, APFloat(x));
+ vec[1] = ConstantFP::get(Type::FloatTy, APFloat(y));
+ vec[2] = ConstantFP::get(Type::FloatTy, APFloat(z));
+ vec[3] = ConstantFP::get(Type::FloatTy, APFloat(w));
+ return ConstantVector::get(m_floatVecType, vec);
+}
+
+
+std::vector<llvm::Value*> Instructions::extractVector(llvm::Value *vec)
+{
+ std::vector<llvm::Value*> elems(4);
+ elems[0] = m_builder.CreateExtractElement(vec, m_storage->constantInt(0),
+ name("x"));
+ elems[1] = m_builder.CreateExtractElement(vec, m_storage->constantInt(1),
+ name("y"));
+ elems[2] = m_builder.CreateExtractElement(vec, m_storage->constantInt(2),
+ name("z"));
+ elems[3] = m_builder.CreateExtractElement(vec, m_storage->constantInt(3),
+ name("w"));
+ return elems;
+}
+
+llvm::Value * Instructions::cmp(llvm::Value *in1, llvm::Value *in2, llvm::Value *in3)
+{
+ llvm::Function *func = m_mod->getFunction("cmp");
+ assert(func);
+
+ std::vector<Value*> params;
+ params.push_back(in1);
+ params.push_back(in2);
+ params.push_back(in3);
+ CallInst *call = m_builder.CreateCall(func, params.begin(), params.end(), name("cmpres"));
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::cos(llvm::Value *in)
+{
+#if 0
+ llvm::Function *func = m_mod->getFunction("vcos");
+ assert(func);
+
+ CallInst *call = m_builder.CreateCall(func, in, name("cosres"));
+ call->setTailCall(false);
+ return call;
+#else
+ std::vector<llvm::Value*> elems = extractVector(in);
+ Function *func = m_mod->getFunction("cosf");
+ assert(func);
+ CallInst *cos = m_builder.CreateCall(func, elems[0], name("cosres"));
+ cos->setCallingConv(CallingConv::C);
+ cos->setTailCall(true);
+ return vectorFromVals(cos, cos, cos, cos);
+#endif
+}
+
+llvm::Value * Instructions::scs(llvm::Value *in)
+{
+ llvm::Function *func = m_mod->getFunction("scs");
+ assert(func);
+
+ CallInst *call = m_builder.CreateCall(func, in, name("scsres"));
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::kilp(llvm::Value *in)
+{
+ llvm::Function *func = m_mod->getFunction("kilp");
+ assert(func);
+
+ CallInst *call = m_builder.CreateCall(func, in, name("kilpres"));
+ call->setTailCall(false);
+ return call;
+}
+
+llvm::Value * Instructions::sin(llvm::Value *in)
+{
+ llvm::Function *func = m_mod->getFunction("vsin");
+ assert(func);
+
+ CallInst *call = m_builder.CreateCall(func, in, name("sinres"));
+ call->setTailCall(false);
+ return call;
+}
+#endif //MESA_LLVM
+
+