Arthur Eubanks c5d1ccbcdf [GVN] Properly invalidate ICF cache when we simplify a value ...

This fixes a "Cached first special instruction is wrong!" assert.

The assert fires because replacing a value with another can cause an
instruction to no longer be "special" to ICF. In this case,
devirtualization happened, turning an indirect call to a
call to a willreturn function which is no longer special.

Reviewed By: nikic, rnk

Differential Revision: https://reviews.llvm.org/D99977

2021-04-08 14:01:57 -07:00

5.0 KiB

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