LLVM 生成 CFG/Dominator tree 图_llvm opt 生成 cfg

LLVM IR

CFG

./build/bin/opt ./llvm/test/Transforms/BlockReordering/block-reordering.ll -passes=dot-cfg 
-cfg-heat-colors=true
dot ._Z20BlockReorderingTest0iiiii.dot -T svg -o _Z20BlockReorderingTest0iiiii.dot.svg
./build/bin/opt -passes=block-reorder -S < ./llvm/test/Transforms/BlockReordering/block-reordering.ll -o after.ll
./build/bin/opt after.ll -passes=dot-cfg -cfg-heat-colors=true
dot ._Z20BlockReorderingTest0iiiii.dot -T svg -o _Z20BlockReorderingTest0iiiii.dot2.svg
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Dominator tree

./build/bin/opt llvm/test/DebugInfo/X86/machinecse-wrongdebug-hoist.ll -dot-dom -cfg-heat-colors=true
dot dom.b.dot -T svg -o dom.b.dot.svg
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MIR

CFG

./build/bin/llc -debugify-and-strip-all-safe < ./llvm/test/CodeGen/AArch64/arm64-early-ifcvt.ll -stress-early-ifcvt -aarch64-enable-atomic-cfg-tidy=0 -stop-before=early-ifcvt -o 1.mir
./build/bin/llc -run-pass=dot-machine-cfg 1.mir
dot .mm2.dot -T svg -o 1.mm2.dot.svg
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外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传

Dominator tree

待探索

ELF

使用 cutter