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compiler-pass

This repository contains all the exercises I've had during learning compiler pass.

MemorySSA

clang -Xclang -disable-O0-optnone -c -emit-llvm -fno-discard-value-names -S -o test.bc test.c

opt -passes='print' test.ll

Commands for Branch counter - New Pass Manager

main.c

clang -emit-llvm -S -g -c main.c -o main.bc

opt -load-pass-plugin=/home/zhongfa/passtest/build/InstCount/InstCount.so -passes="branch-count-pass" main.bc -o main.ll

test.c

clang -emit-llvm -S -g -c test.c -o test.bc

opt -load-pass-plugin=/home/zhongfa/passtest/build/InstCount/InstCount.so -passes="branch-count-pass" test.bc -o test.ll

clang -g test.ll

Commands for Target Counter - New Pass Manager

clang -emit-llvm -S -O0 -g -c test.c -o test.bc

opt -load-pass-plugin=/home/zhongfa/passtest/build/TargetCount/TargetCount.so -passes="target-count-pass" test.bc -o test.ll //local opt -load-pass-plugin=/home/rigel/projects/compiler-pass/build/TargetCount/TargetCount.so -passes="target-count-pass" test.bc -o test.ll

clang -g -O0 test.ll

two passes

opt -load-pass-plugin=/home/zhongfa/passtest/build/InstCount/InstCount.so -load-pass-plugin=/home/zhongfa/passtest/build/BranchCount/BranchCount.so -passes="branch-count-pass,target-count-pass" test.bc -o test.ll

Legacy: Constantly used commands

clang -emit-llvm -S main.c -o main.bc

clang -emit-llvm -S main.c -o main.ll

opt -load ./build/InstCount/InstCount.so -InstCount main.bc -o /dev/null -enable-new-pm=0

clang -flegacy-pass-manager -Xclang -load -Xclang /home/zhongfa/passtest/build/InstCount/InstCount.so -c main.c

clang -S -emit-llvm -O1 -o main.bc -g main.c

opt -load /home/zhongfa/passtest/build/InstCount/InstCount.so -InstCount main.bc -o main_out.bc -enable-new-pm=0 -S

clang main_out.bc -g