llvm-project

Author SHA1 Message Date

Author	SHA1	Message	Date
Vitaly Buka	6dba99e14f	[InstCombine][asan] Don't speculate loads before `select ptr` (#100773 ) Even if memory is valid from `llvm` point of view, e.g. local alloca, sanitizers have API for user specific memory annotations. These annotations can be used to track size of the local object, e.g. inline vectors may prevent accesses beyond the current vector size. So valid programs should not access those parts of alloca before checking preconditions. Fixes #100639.	2024-07-29 11:28:03 -07:00
Vitaly Buka	2f3ae2f625	[NFC][InstCombine][SROA][Asan] Precommit tests affected by #100773 (#100844 ) Some optimization need to be undone with sanitizers by #100773. For #100639.	2024-07-29 10:32:51 -07:00

Vitaly Buka

6dba99e14f

[InstCombine][asan] Don't speculate loads before select ptr (#100773 )

Even if memory is valid from `llvm` point of view,
e.g. local alloca, sanitizers have API for user
specific memory annotations.

These annotations can be used to track size of the
local object, e.g. inline vectors may prevent
accesses beyond the current vector size.

So valid programs should not access those parts of
alloca before checking preconditions.

Fixes #100639.

2024-07-29 11:28:03 -07:00

Vitaly Buka

2f3ae2f625

[NFC][InstCombine][SROA][Asan] Precommit tests affected by #100773 (#100844 )

Some optimization need to be undone with
sanitizers by #100773.

For #100639.

2024-07-29 10:32:51 -07:00

2 Commits