Implement tracking of bytecode instruction size and the number of long

instructions generated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14154 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-06-11 15:10:38 +00:00
parent f6d023312f
commit 1cf5024de1
5 changed files with 37 additions and 1 deletions

View File

@ -55,6 +55,8 @@ struct BytecodeAnalysis {
///< the file is more sparse.
double globalsDensity; ///< density of global defs (bytes/definition)
double functionDensity; ///< Average density of functions (bytes/function)
unsigned instructionSize; ///< Size of instructions in bytes
unsigned longInstructions;///< Number of instructions > 4 bytes
unsigned vbrCount32; ///< Number of 32-bit vbr values
unsigned vbrCount64; ///< Number of 64-bit vbr values
unsigned vbrCompBytes; ///< Number of vbr bytes (compressed)
@ -67,13 +69,15 @@ struct BytecodeAnalysis {
/// an analysis of a single function.
struct BytecodeFunctionInfo {
std::string description; ///< Function type description
std::string name; ///< Name of function if it has one
std::string name; ///< Name of function if it has one
unsigned byteSize; ///< The size of the function in bytecode bytes
unsigned numInstructions; ///< The number of instructions in the function
unsigned numBasicBlocks; ///< The number of basic blocks in the function
unsigned numPhis; ///< Number of Phi Nodes in Instructions
unsigned numOperands; ///< The number of operands in the function
double density; ///< Density of function
unsigned instructionSize; ///< Size of instructions in bytes
unsigned longInstructions;///< Number of instructions > 4 bytes
unsigned vbrCount32; ///< Number of 32-bit vbr values
unsigned vbrCount64; ///< Number of 64-bit vbr values
unsigned vbrCompBytes; ///< Number of vbr bytes (compressed)

View File

@ -52,6 +52,8 @@ public:
bca.fileDensity = 0.0;
bca.globalsDensity = 0.0;
bca.functionDensity = 0.0;
bca.instructionSize = 0;
bca.longInstructions = 0;
bca.vbrCount32 = 0;
bca.vbrCount64 = 0;
bca.vbrCompBytes = 0;
@ -167,6 +169,8 @@ public:
currFunc->numPhis = 0;
currFunc->numOperands = 0;
currFunc->density = 0.0;
currFunc->instructionSize = 0;
currFunc->longInstructions = 0;
currFunc->vbrCount32 = 0;
currFunc->vbrCount64 = 0;
currFunc->vbrCompBytes = 0;
@ -188,9 +192,13 @@ public:
std::vector<unsigned>& Operands, unsigned Size) {
bca.numInstructions++;
bca.numValues++;
bca.instructionSize += Size;
if (Size > 4 ) bca.longInstructions++;
bca.numOperands += Operands.size();
if ( currFunc ) {
currFunc->numInstructions++;
currFunc->instructionSize += Size;
if (Size > 4 ) currFunc->longInstructions++;
if ( Opcode == Instruction::PHI ) currFunc->numPhis++;
}
return Instruction::isTerminator(Opcode);

View File

@ -249,6 +249,10 @@ void llvm::PrintBytecodeAnalysis(BytecodeAnalysis& bca, std::ostream& Out )
print(Out, "Number Of Operands", bca.numOperands);
print(Out, "Number Of Compaction Tables", bca.numCmpctnTables);
print(Out, "Number Of Symbol Tables", bca.numSymTab);
print(Out, "Long Instructions", bca.longInstructions);
print(Out, "Instruction Size", bca.instructionSize);
print(Out, "Average Instruction Size",
double(bca.instructionSize)/double(bca.numInstructions));
print(Out, "Maximum Type Slot Number", bca.maxTypeSlot);
print(Out, "Maximum Value Slot Number", bca.maxValueSlot);
print(Out, "Bytes Thrown To Alignment", double(bca.numAlignment),
@ -304,6 +308,10 @@ void llvm::PrintBytecodeAnalysis(BytecodeAnalysis& bca, std::ostream& Out )
print(Out, "Type:", I->second.description);
print(Out, "Byte Size", I->second.byteSize);
print(Out, "Instructions", I->second.numInstructions);
print(Out, "Long Instructions", I->second.longInstructions);
print(Out, "Instruction Size", I->second.instructionSize);
print(Out, "Average Instruction Size",
double(I->second.instructionSize)/double(I->second.numInstructions));
print(Out, "Basic Blocks", I->second.numBasicBlocks);
print(Out, "Operand", I->second.numOperands);
print(Out, "Function Density", I->second.density);

View File

@ -52,6 +52,8 @@ public:
bca.fileDensity = 0.0;
bca.globalsDensity = 0.0;
bca.functionDensity = 0.0;
bca.instructionSize = 0;
bca.longInstructions = 0;
bca.vbrCount32 = 0;
bca.vbrCount64 = 0;
bca.vbrCompBytes = 0;
@ -167,6 +169,8 @@ public:
currFunc->numPhis = 0;
currFunc->numOperands = 0;
currFunc->density = 0.0;
currFunc->instructionSize = 0;
currFunc->longInstructions = 0;
currFunc->vbrCount32 = 0;
currFunc->vbrCount64 = 0;
currFunc->vbrCompBytes = 0;
@ -188,9 +192,13 @@ public:
std::vector<unsigned>& Operands, unsigned Size) {
bca.numInstructions++;
bca.numValues++;
bca.instructionSize += Size;
if (Size > 4 ) bca.longInstructions++;
bca.numOperands += Operands.size();
if ( currFunc ) {
currFunc->numInstructions++;
currFunc->instructionSize += Size;
if (Size > 4 ) currFunc->longInstructions++;
if ( Opcode == Instruction::PHI ) currFunc->numPhis++;
}
return Instruction::isTerminator(Opcode);

View File

@ -249,6 +249,10 @@ void llvm::PrintBytecodeAnalysis(BytecodeAnalysis& bca, std::ostream& Out )
print(Out, "Number Of Operands", bca.numOperands);
print(Out, "Number Of Compaction Tables", bca.numCmpctnTables);
print(Out, "Number Of Symbol Tables", bca.numSymTab);
print(Out, "Long Instructions", bca.longInstructions);
print(Out, "Instruction Size", bca.instructionSize);
print(Out, "Average Instruction Size",
double(bca.instructionSize)/double(bca.numInstructions));
print(Out, "Maximum Type Slot Number", bca.maxTypeSlot);
print(Out, "Maximum Value Slot Number", bca.maxValueSlot);
print(Out, "Bytes Thrown To Alignment", double(bca.numAlignment),
@ -304,6 +308,10 @@ void llvm::PrintBytecodeAnalysis(BytecodeAnalysis& bca, std::ostream& Out )
print(Out, "Type:", I->second.description);
print(Out, "Byte Size", I->second.byteSize);
print(Out, "Instructions", I->second.numInstructions);
print(Out, "Long Instructions", I->second.longInstructions);
print(Out, "Instruction Size", I->second.instructionSize);
print(Out, "Average Instruction Size",
double(I->second.instructionSize)/double(I->second.numInstructions));
print(Out, "Basic Blocks", I->second.numBasicBlocks);
print(Out, "Operand", I->second.numOperands);
print(Out, "Function Density", I->second.density);