Implementation of the FunctionEmitContext class. More...

#include "ctx.h"
#include "expr.h"
#include "func.h"
#include "llvmutil.h"
#include "module.h"
#include "stmt.h"
#include "sym.h"
#include "type.h"
#include "util.h"
#include <llvm/BinaryFormat/Dwarf.h>
#include <map>
#include <llvm/IR/DerivedTypes.h>
#include <llvm/IR/Instructions.h>
#include <llvm/IR/Metadata.h>
#include <llvm/IR/Module.h>

Include dependency graph for ctx.cpp:

Go to the source code of this file.

Classes
struct	CFInfo

Functions
static bool	lEnclosingLoopIsForeachActive (const std::vector< CFInfo *> &controlFlowInfo)

static llvm::Value *	lGetStringAsValue (llvm::BasicBlock bblock, const char s)

static int	lArrayVectorWidth (llvm::Type *t)

static llvm::Type *	lGetMatchingBoolVectorType (llvm::Type *type)

static llvm::Value *	lComputeSliceIndex (FunctionEmitContext ctx, int soaWidth, llvm::Value indexValue, llvm::Value ptrSliceOffset, llvm::Value *newSliceOffset)

static llvm::Value *	lFinalSliceOffset (FunctionEmitContext ctx, llvm::Value ptr, const PointerType **ptrType)

static unsigned int	lCalleeArgCount (llvm::Value callee, const FunctionType funcType)

Detailed Description

Implementation of the FunctionEmitContext class.

Definition in file ctx.cpp.

Function Documentation

◆ lArrayVectorWidth()

static int lArrayVectorWidth ( llvm::Type * t )

static

If the given type is an array of vector types, then it's the representation of an ispc VectorType with varying elements. If it is one of these, return the array size (i.e. the VectorType's size). Otherwise return zero.

Definition at line 1370 of file ctx.cpp.

References Assert, g, Target::getVectorWidth(), and Globals::target.

Referenced by FunctionEmitContext::BinaryOperator(), FunctionEmitContext::CmpInst(), and FunctionEmitContext::NotOperator().

◆ lCalleeArgCount()

static unsigned int lCalleeArgCount	(	llvm::Value *	callee,
		const FunctionType *	funcType
	)

static

Given a value representing a function to be called or possibly-varying pointer to a function to be called, figure out how many arguments the function has.

Definition at line 2958 of file ctx.cpp.

References Assert, and FunctionType::GetNumParameters().

Referenced by FunctionEmitContext::CallInst().

◆ lComputeSliceIndex()

static llvm::Value* lComputeSliceIndex	(	FunctionEmitContext *	ctx,
		int	soaWidth,
		llvm::Value *	indexValue,
		llvm::Value *	ptrSliceOffset,
		llvm::Value **	newSliceOffset
	)

static

Given an integer index in indexValue that's indexing into an array of soa<> structures with given soaWidth, compute the two sub-indices we need to do the actual indexing calculation:

subIndices[0] = (indexValue >> log(soaWidth)) subIndices[1] = (indexValue & (soaWidth-1))

Definition at line 1779 of file ctx.cpp.

References Assert, FunctionEmitContext::BinaryOperator(), LLVMTypes::Int32Type, LLVMTypes::Int32VectorType, LLVMTypes::Int64Type, LLVMTypes::Int64VectorType, LLVMIntAsType(), FunctionEmitContext::MatchIntegerTypes(), and FunctionEmitContext::TruncInst().

Referenced by FunctionEmitContext::GetElementPtrInst().

◆ lEnclosingLoopIsForeachActive()

static bool lEnclosingLoopIsForeachActive ( const std::vector< CFInfo *> & controlFlowInfo )

static

Definition at line 652 of file ctx.cpp.

References CFInfo::ForeachActive, and CFInfo::type.

Referenced by FunctionEmitContext::Continue().

◆ lFinalSliceOffset()

static llvm::Value* lFinalSliceOffset	(	FunctionEmitContext *	ctx,
		llvm::Value *	ptr,
		const PointerType **	ptrType
	)

static

Given a slice pointer to soa'd data that is a basic type (atomic, pointer, or enum type), use the slice offset to compute pointer(s) to the appropriate individual data element(s).

Definition at line 2114 of file ctx.cpp.

References Assert, FunctionEmitContext::BitCastInst(), Globals::ctx, FunctionEmitContext::ExtractInst(), g, Type::GetAsUniformType(), Type::GetBaseType(), FunctionEmitContext::GetElementPtrInst(), PointerType::GetUniform(), PointerType::GetVarying(), Type::IsBasicType(), Type::IsUniformType(), and LLVMGetName().