Commit Graph

5 Commits

Author SHA1 Message Date
Michael Liao f95850ce9c [SROA] Teach SROA to perform no-op pointer conversion.
Summary:
- When promoting a pointer from memory to register, SROA skips pointers
  from different address spaces. However, as `ptrtoint` and `inttoptr`
  are defined as no-op casts if that integer type has the same as the
  pointer value, generate the pair of `ptrtoint`/`inttoptr` (no-op cast)
  sequence to convert pointers from different address spaces if they
  have the same size.

Reviewers: arsenm, chandlerc, lebedev.ri

Subscribers:

Differential Revision: https://reviews.llvm.org/D81943
2020-06-23 01:49:27 -04:00
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
Philip Reames 9b6b4fac83 [SROA] Fix a crash when trying to convert a memset to an non-integral pointer type
The included test case currently crashes on tip of tree. Rather than adding a bailout, I chose to restructure the code so that the existing helper function could be used. Given that, the majority of the diff is NFC-ish, but the key difference is that canConvertValue returns false when only one side is a non-integral pointer.

Thanks to Cherry Zhang for the test case.

Differential Revision: https://reviews.llvm.org/D59000

llvm-svn: 355962
2019-03-12 20:15:05 +00:00
Sanjoy Das b70ddd8901 [SROA] Add support for non-integral pointers
Summary: C.f. http://llvm.org/docs/LangRef.html#non-integral-pointer-type

Reviewers: chandlerc, loladiro

Reviewed By: loladiro

Subscribers: reames, loladiro, mcrosier, llvm-commits

Differential Revision: https://reviews.llvm.org/D32203

llvm-svn: 305639
2017-06-17 20:28:13 +00:00