Florian Hahn 274a9b0f0b [DSE] Support redundant stores eliminated by memset. ...

This patch adds support to remove stores that write the same value
as earlier memesets.

It uses isOverwrite to check that a memset completely overwrites a later
store. The candidate store must store the same bytewise value as the
byte stored by the memset.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D112321

2021-10-29 22:19:53 +01:00

89 KiB

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