Nadav Rotem
807dad62a0
Teach the cost model about the optimization in r169904: Truncation of induction variables costs the same as scalar trunc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170051 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13 00:21:03 +00:00
Nadav Rotem
b042868c01
Cost Model: add tables for some avx type-conversion hacks.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167480 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-06 19:33:53 +00:00
Nadav Rotem
2d1528b358
Code Model: Improve the accuracy of the zext/sext/trunc vector cost estimation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167412 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05 22:20:53 +00:00
Nadav Rotem
e623702c22
Implement the cost of abnormal x86 instruction lowering as a table.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167395 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05 19:32:46 +00:00
Nadav Rotem
e57b2cbce6
LoopVectorize: Preserve NSW, NUW and IsExact flags.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167174 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 21:40:39 +00:00
Nadav Rotem
0dba9a9a26
Fix a bug in the cost calculation of vector casts. Detect situations where bitcasts cost zero.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167170 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 20:52:26 +00:00
Nadav Rotem
462d1ca428
Add support for loops that don't start with Zero.
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This is important for loops in the LAPACK test-suite.
These loops start at 1 because they are auto-converted from fortran.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167084 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31 00:45:26 +00:00
Nadav Rotem
f065a84677
1. Fix a bug in getTypeConversion. When a *simple* type is split, we need to return the type of the split result.
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2. Change the maximum vectorization width from 4 to 8.
3. A test for both.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166864 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-27 04:11:32 +00:00
Nadav Rotem
a5a3a61c5f
Refactor the VectorTargetTransformInfo interface.
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Add getCostXXX calls for different families of opcodes, such as casts, arithmetic, cmp, etc.
Port the LoopVectorizer to the new API.
The LoopVectorizer now finds instructions which will remain uniform after vectorization. It uses this information when calculating the cost of these instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166836 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26 23:49:28 +00:00
Nadav Rotem
f563801144
Move the target-specific tests, which require specific backends, to dirs that only run if the target is present.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166796 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26 18:52:01 +00:00
