Commit Graph

11 Commits

Author SHA1 Message Date
Michael Liao
d4584c9e56 Revise alignment checking/calculation on 256-bit unaligned memory access
- It's still considered aligned when the specified alignment is larger
  than the natural alignment;
- The new alignment for the high 128-bit vector should be min(16,
  alignment) as the pointer is advanced by 16, a power-of-2 offset.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177947 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-25 23:50:10 +00:00
Michael Liao
b4f98ea121 Enhance folding of (extract_subvec (insert_subvec V1, V2, IIdx), EIdx)
- Handle the case where the result of 'insert_subvect' is bitcasted
  before 'extract_subvec'. This removes the redundant insertf128/extractf128
  pair on unaligned 256-bit vector load/store on vectors of non 64-bit integer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177945 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-25 23:47:35 +00:00
Nadav Rotem
dd7a300c10 Unaligned loads should use the VMOVUPS opcode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177130 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-14 23:49:44 +00:00
Nadav Rotem
ba95865441 On Sandybridge split unaligned 256bit stores into two xmm-sized stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172894 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-19 08:38:41 +00:00
Nadav Rotem
394a1f53b9 Fix a bug in the lowering of BUILD_VECTOR for AVX. SCALAR_TO_VECTOR does not zero untouched elements. Use INSERT_VECTOR_ELT instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147948 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-11 14:07:51 +00:00
Jakob Stoklund Olesen
df4b35e3dd Remove X86-dependent stuff from SSEDomainFix.
This also enables domain swizzling for AVX code which required a few
trivial test changes.

The pass will be moved to lib/CodeGen shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140659 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-27 23:50:46 +00:00
Bruno Cardoso Lopes
7db2d3a504 Fix PR10844: Add patterns to cover non foldable versions of X86vzmovl.
Triggered using llc -O0. Also fix some SET0PS patterns to their AVX
forms and test it on the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139304 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-08 18:05:02 +00:00
Bruno Cardoso Lopes
ec91640997 Fix the test added by Nadav in r137308. Make it more strict:
1) check for the "v" version of movaps
2) add a couple of CHECK-NOT to guarantee the behavior
3) move to a more appropriate test file

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137361 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-11 21:50:35 +00:00
Bruno Cardoso Lopes
18deb04e9c Add v16i16 and v32i8 store patterns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137166 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 22:39:53 +00:00
Bruno Cardoso Lopes
e5118ab7bb Add two patterns to match special vmovss and vmovsd cases. Also fix
the patterns already there to be more strict regarding the predicate.
This fixes PR10558

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137100 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 01:43:09 +00:00
Bruno Cardoso Lopes
62f67f86fe Add 256-bit load/store recognition and matching in several places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135171 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14 18:50:58 +00:00