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17 Commits

Author SHA1 Message Date
Manman Ren
2dc50d3067 TBAA: remove !tbaa from testing cases if not used. 
This will make it easier to turn on struct-path aware TBAA since the metadata
format will change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180796 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-30 17:52:57 +00:00
Nadav Rotem
b86dff862f SLPVectorize: Add support for vectorization of casts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179975 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-21 08:05:59 +00:00
Nadav Rotem
4f38e16b89 Fix PR15800. Do not try to vectorize vectors and structs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179960 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-20 22:29:43 +00:00
Nadav Rotem
1d2ad834f2 SLPVectorizer: Improve the cost model for loop invariant broadcast values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179930 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-20 06:13:47 +00:00
Nadav Rotem
e9a4411db4 SLPVectorizer: Make it a function pass and add code for hoisting the vector-gather sequence out of loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179562 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-15 22:00:26 +00:00
Eric Christopher
60d20a81fc Revert "Recommit r179497 after fixing uninitialized variable." until 
I can fix the testcases here:

http://lab.llvm.org:8011/builders/clang-native-arm-cortex-a9/builds/6952

This reverts commit r179512 due to testcases specifying triples
that they didn't actually mean and causing failures on other platforms.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179513 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-15 07:31:37 +00:00
Eric Christopher
fdf9624f3c Recommit r179497 after fixing uninitialized variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179512 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-15 07:07:21 +00:00
Nadav Rotem
09616565dd SLPVectorizer: Add support for vectorizing trees that start at compare instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179504 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-15 04:25:27 +00:00
Eric Christopher
f1216abf7e Revert "Remove some unused triple and data layout." 
This reverts commit r179497 and the accompanying commit as it broke random platforms that aren't osx.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179499 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-14 23:35:36 +00:00
Eric Christopher
199ff9cdd7 Remove some unused triple and data layout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179498 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-14 23:32:44 +00:00
Nadav Rotem
687a9dfcb9 Make the command line triple match the module triple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179492 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-14 20:13:05 +00:00
Nadav Rotem
1f098af364 Remove unused function attributes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179476 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-14 05:47:04 +00:00
Nadav Rotem
ab105ae95f SLPVectorizer: Add support for trees that don't start at binary operators, and add the cost of extracting values from the roots of the tree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179475 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-14 05:15:53 +00:00
Nadav Rotem
f7eaf29cf7 SLPVectorizer: add initial support for reduction variable vectorization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179470 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-14 03:22:20 +00:00
Nadav Rotem
a74f91e44c SLPVectorizer: add support for vectorization of diamond shaped trees. We now perform a preliminary traversal of the graph to collect values with multiple users and check where the users came from. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179414 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-12 21:16:54 +00:00
Nadav Rotem
4b924d3a61 Make the SLP store-merger less paranoid about function calls. We check for function calls when we check if it is safe to sink instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179207 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-10 19:41:36 +00:00
Nadav Rotem
8383b539ff Add support for bottom-up SLP vectorization infrastructure. 
This commit adds the infrastructure for performing bottom-up SLP vectorization (and other optimizations) on parallel computations.
The infrastructure has three potential users:

  1. The loop vectorizer needs to be able to vectorize AOS data structures such as (sum += A[i] + A[i+1]).

  2. The BB-vectorizer needs this infrastructure for bottom-up SLP vectorization, because bottom-up vectorization is faster to compute.

  3. A loop-roller needs to be able to analyze consecutive chains and roll them into a loop, in order to reduce code size. A loop roller does not need to create vector instructions, and this infrastructure separates the chain analysis from the vectorization.

This patch also includes a simple (100 LOC) bottom up SLP vectorizer that uses the infrastructure, and can vectorize this code:

void SAXPY(int *x, int *y, int a, int i) {
  x[i]   = a * x[i]   + y[i];
  x[i+1] = a * x[i+1] + y[i+1];
  x[i+2] = a * x[i+2] + y[i+2];
  x[i+3] = a * x[i+3] + y[i+3];
}



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179117 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-09 19:44:35 +00:00