Compile:

The file of opt and Sim should all be compiled. Under their directories, use the following command independently.

• make clean: clean all compiled files
• make or make all: complie all files into executable file.

Usage:

• ./opt -v ./TestCodes/algred/algred.i: optimize with Local Value Numbering
• ./opt -u ./TestCodes/algred/algred.i: optimize with Loop Unrolling
• ./opt -v -u ./TestCodes/algred/algred.i: optimize with Local Value Numbering and Loop Unrolling
• ./opt -u -v ./TestCodes/algred/algred.i: optimize with Loop Unrolling and Local Value Numbering
• All the output will be written in output.i
• ./Sim/src/sim ./output.i: test with Sim, an ILOC simulator to measure the number of cycles

Test:

1. The optimizer under 4 modes has been tested under all testcases in folder ./TestCodes and pass them all. All the output results are correct and the cycles are decreased under -u -v -u -v -v -u these 4 modes.
2. Take algred for example. Entering number of 20 and the output is 168020. The number of cycles under different 4 modes are:
   • -v Executed 99368 instructions and 99368 operations in 147368 cycles.
   • -u Executed 86568 instructions and 86568 operations in 150568 cycles.
   • -v -u Executed 86568 instructions and 86568 operations in 134568 cycles.
   • -u -v Executed 86568 instructions and 86568 operations in 105768 cycles.