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7 Commits

Author SHA1 Message Date
Vincent Lejeune
70a7d5ddb4 R600: Use function inputs to represent data stored in gpr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194425 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-11-11 22:10:24 +00:00
Vincent Lejeune
f2b3a569ae R600: Use masked read sel for texture instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192554 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-13 17:56:10 +00:00
Vincent Lejeune
91ec4b0cac R600: fix swizzle export 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192553 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-10-13 17:56:04 +00:00
Quentin Colombet
15d1b85094 [R600] Replicate old DAGCombiner behavior in target specific DAG combine. 
build_vector is lowered to REG_SEQUENCE, which is something the register
allocator does a good job at optimizing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187397 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-30 00:27:16 +00:00
Quentin Colombet
75c9433b49 [DAGCombiner] insert_vector_elt: Avoid building a vector twice. 
This patch prevents the following combine when the input vector is used more
than once.
insert_vector_elt (build_vector elt0, ..., eltN), NewEltIdx, idx
=>
build_vector elt0, ..., NewEltIdx, ..., eltN 

The reasons are:
- Building a vector may be expensive, so try to reuse the existing part of a
  vector instead of creating a new one (think big vectors).
- elt0 to eltN now have two users instead of one. This may prevent some other
  optimizations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187396 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-30 00:24:09 +00:00
Vincent Lejeune
f4bdec2ebe R600: Fix a rare bug where swizzle optimization returns wrong values 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185942 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-09 15:03:25 +00:00
Vincent Lejeune
07bb3f1d0a R600: Fix wrong export reswizzling 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185941 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-07-09 15:03:19 +00:00