Commit Graph

7 Commits

Author SHA1 Message Date
Craig Topper 8cfff1e1bc [X86] Add prefer-128-bit subtarget feature.
Summary:
Similar to the previous prefer-256-bit flag. We might want to
enable this by default some CPUs. This just starts the initial
work to implement and prove that it effects TTI's vector width.

Reviewers: RKSimon, echristo, spatel, atdt

Reviewed By: RKSimon

Subscribers: lebedev.ri, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67311

llvm-svn: 371319
2019-09-07 19:54:22 +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
Craig Topper 502fc1bdd5 [X86] Split skylake-avx512 run lines in SLP vectorizer tests to cover -mprefer=vector-width=256 and -mprefer-vector-width=512.
This will make these tests immune if we ever change the default behavior of -march=skylake-avx512 to prefer 256 bit vectors.

llvm-svn: 348046
2018-11-30 22:53:21 +00:00
Craig Topper 60c7e0d587 [X86] Remove unnecessary -mattr to enable avx512bw when the -mcpu already enabled it. NFC
This makes the test similar to the arith-sub.ll and arith-mul.ll tests.

llvm-svn: 330144
2018-04-16 18:14:19 +00:00
Simon Pilgrim 448c2290f1 [X86][SLM] Add SLM arithmetic vectorization tests
As discussed on D33983, as SLM has so many custom costs its worth testing as well.

llvm-svn: 305151
2017-06-10 19:16:09 +00:00
Simon Pilgrim 7d2f06ae22 [SLPVectorizer][X86] Add vectorization tests for vXi64/vXi32/vXi16/VXi8 add/sub/mul
llvm-svn: 303074
2017-05-15 15:48:15 +00:00