[InstCombine] Fix infinite loop due to bitcast <-> phi transforms#34

Merged

alexcrichton merged 7 commits intorust-lang:rustc/9.0-2019-12-19from

tmandry:rust-66036

Jan 21, 2020

Commits on Jan 17, 2020

[InstCombine] Add test for iterator invalidation bug; NFC

nikic
authored and
tmandry
committed
[InstCombine] Fix user iterator invalidation in bitcast of phi transform

nikic
authored and
tmandry
committed
[InstCombine] Make combineLoadToNewType a method; NFC

nikic
authored and
tmandry
committed
[InstCombine] Fix infinite loop due to bitcast <-> phi transforms

nikic
authored and
tmandry
committed
[InstCombine] Improve infinite loop detection

kuhar
authored and
tmandry
committed

Commits on Jan 21, 2020

[InstCombine] Add tests for PR44242

cwabbott0
authored and
tmandry
committed
[InstCombine] Don't rewrite phi-of-bitcast when the phi has other users

cwabbott0
authored and
tmandry
committed