6 Commits

Author SHA1 Message Date
Leonard Chan
474f5efebe Revert "[llvm] Teach whole program devirtualization about relative vtables"
This reverts commit db288184765c0b4010060ebea1f6de3ac1f66445.

Reverting since it broke our lto builders reported by fxbug.dev/123807.
2023-03-26 01:53:13 +00:00
Leonard Chan
db28818476 [llvm] Teach whole program devirtualization about relative vtables
Prior to this patch, WPD was not acting on relative-vtables in C++. This
involves teaching WPD about these things:

- llvm.load.relative which is how relative-vtables are indexed (instead of GEP)
- dso_local_equivalent which is used in the vtable itself when taking the
  offset between a virtual function and vtable
- Update llvm/test/ThinLTO/X86/devirt.ll to use opaque pointers and add
  equivalent tests for RV

Differential Revision: https://reviews.llvm.org/D134320
2023-02-23 22:18:43 +00:00
Eric Christopher
cee313d288 Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00
Eric Christopher
a863435128 Temporarily Revert "Add basic loop fusion pass."
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
2019-04-17 02:12:23 +00:00
Evgeniy Stepanov
b933ad3a77 Skip CFI for dead functions.
Differential Revision: https://reviews.llvm.org/D33805

llvm-svn: 304578
2017-06-02 18:24:23 +00:00
Peter Collingbourne
b406baaeef WholeProgramDevirt: Add any unsuccessful llvm.type.checked.load devirtualizations to the list of llvm.type.test users.
Any unsuccessful llvm.type.checked.load devirtualizations will be translated
into uses of llvm.type.test, so we need to add the resulting llvm.type.test
intrinsics to the function summaries so that the LowerTypeTests pass will
export them.

Differential Revision: https://reviews.llvm.org/D29808

llvm-svn: 296939
2017-03-04 01:23:30 +00:00