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10 Commits

Author SHA1 Message Date
Alina Sbirlea 8d8aa5dd6c Address two correctness issues in LoadStoreVectorizer 
Summary:
GetBoundryInstruction returns the last instruction as the instruction which follows or end(). Otherwise the last instruction in the boundry set is not being tested by isVectorizable().
Partially solve reordering of instructions. More extensive solution to follow.

Reviewers: tstellarAMD, llvm-commits, jlebar

Subscribers: escha, arsenm, mzolotukhin

Differential Revision: http://reviews.llvm.org/D21934

llvm-svn: 274389
 2016-07-01 21:44:12 +00:00
Matt Arsenault 0101ecade0 LoadStoreVectorizer: Don't increase alignment with no align set 
If no alignment was set on the load/stores, it would vectorize
to the new type even though this increases the default alignment.

llvm-svn: 274323
 2016-07-01 02:09:38 +00:00
Matt Arsenault 370e8226c7 LoadStoreVectorizer: Check TTI for vec reg bit width 
llvm-svn: 274322
 2016-07-01 02:07:22 +00:00
Matt Arsenault 42ad17059a LoadStoreVectorizer: Fix assert when merging pointer ops 
This needs to use inttoptr/ptrtoint if combining an int and pointer
load. If a pointer is used always do an integer load.

llvm-svn: 274321
 2016-07-01 01:55:52 +00:00
Matt Arsenault 241f34cde8 LoadStoreVectorizer: Use AA metadata 
This was not passing the full instruction with metadata
to the alias query.

llvm-svn: 274318
 2016-07-01 01:47:46 +00:00
Matt Arsenault d7e8898bdd LoadStoreVectorizer: if one element of a vector is integer, default to 
integer.

Fixes issues on some architectures where we use arithmetic ops to build
vectors, which can cause bad things to happen for loads/stores of mixed
types.

Patch by Fiona Glaser

llvm-svn: 274307
 2016-07-01 00:37:01 +00:00
Matt Arsenault 8a4ab5e19f LoadStoreVectorizer: Fix crashes on sub-byte types 
llvm-svn: 274306
 2016-07-01 00:36:54 +00:00
Matt Arsenault 079d0f19a2 LoadStoreVectorizer: Check skipFunction first. 
Also add test I forgot to add to r274296.

llvm-svn: 274299
 2016-06-30 23:50:18 +00:00
Matt Arsenault 2cbe52b990 LoadStoreVectorizer: Skip optnone functions 
llvm-svn: 274296
 2016-06-30 23:30:29 +00:00
Matt Arsenault 08debb0244 Add LoadStoreVectorizer pass 
This was contributed by Apple, and I've been working on
minimal cleanups and generalizing it.

llvm-svn: 274293
 2016-06-30 23:11:38 +00:00