[InstCombine] fold `sub(zext(ptrtoint),zext(ptrtoint))`#115369

Merged

nikic merged 6 commits intollvm:mainfrom

npanchen:npanchen/instcombine_sub_zext_ptrtoint

Nov 15, 2024

Commits on Nov 7, 2024

[InstCombine] fold `sub(zext(ptrtoint),zext(ptrtoint))`
npanchen
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Commits on Nov 8, 2024

Changed pattern matching
npanchen
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Commits on Nov 13, 2024

Addressed comments
npanchen
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Commits on Nov 14, 2024

Commits on Nov 15, 2024

Added identical test that use non-global ptr
npanchen
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