Commit Graph

22 Commits

Author SHA1 Message Date
Paul Redmond
880166684e LoopVectorize: support vectorizing intrinsic calls
- added function to VectorTargetTransformInfo to query cost of intrinsics
- vectorize trivially vectorizable intrinsic calls such as sin, cos, log, etc.

Reviewed by: Nadav


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169711 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-09 20:42:17 +00:00
Nadav Rotem
0602bb4659 Cost Model: change the default cost of control flow instructions (br / ret / ...) to zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169423 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05 21:21:26 +00:00
Nadav Rotem
955cf53266 Use the isTruncFree and isZExtFree API to figure out of these operations are free. Thanks Andy!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167685 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-11 05:34:45 +00:00
Nadav Rotem
887c1fe701 Refactor the getTypeLegalizationCost interface. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167422 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05 23:57:45 +00:00
Nadav Rotem
2d1528b358 Code Model: Improve the accuracy of the zext/sext/trunc vector cost estimation.
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
75138f58b0 Cost Model: teach the cost model about expanding integers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167401 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-05 21:11:10 +00:00
Nadav Rotem
e623702c22 Implement the cost of abnormal x86 instruction lowering as a table.
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
2b0c96f71f Scalar Bitcasts and Truncs are usually free
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167323 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-02 21:47:47 +00:00
Nadav Rotem
0dba9a9a26 Fix a bug in the cost calculation of vector casts. Detect situations where bitcasts cost zero.
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
Hans Wennborg
04d7d13d30 Use TargetTransformInfo to control switch-to-lookup table transformation
When the switch-to-lookup tables transform landed in SimplifyCFG, it
was pointed out that this could be inappropriate for some targets.
Since there was no way at the time for the pass to know anything about
the target, an awkward reverse-transform was added in CodeGenPrepare
that turned lookup tables back into switches for some targets.

This patch uses the new TargetTransformInfo to determine if a
switch should be transformed, and removes
CodeGenPrepare::ConvertLoadToSwitch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167011 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30 11:23:25 +00:00
Hal Finkel
c588e0e162 Remove an invalid assert in TargetTransformImpl
getCastInstrCost had an assert prohibiting scalar to vector casts. Such casts,
however, are allowed. This should make the vectorizer buildbot happier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166998 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-30 02:41:57 +00:00
Hans Wennborg
b9051db24a Minor style fixes for TargetTransformationInfo and TargetTransformImpl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166936 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29 16:26:52 +00:00
Nadav Rotem
e49816076c Calling TLI->getNumRegisters creates a circular dependency when building LLVM using cmake.
Get the number of registers by calling getTypeLegalizationCost.

PR14199.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166911 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29 05:28:35 +00:00
Nadav Rotem
a5a3a61c5f Refactor the VectorTargetTransformInfo interface.
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
Renato Golin
e5372d6565 Better handling of OpcodeToISD using enum/switch.
Patch by Pasi Parviainen <pasi.parviainen@iki.fi>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166773 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26 12:24:52 +00:00
Hal Finkel
102a7c088c Add VectorTargetTransform::getNumberOfParts.
As discussed on IRC, add VectorTargetTransform::getNumberOfParts
to provide a stable interface to the vector legalization splitting factor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166751 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26 04:28:02 +00:00
Nadav Rotem
1e19e46139 Minor cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166706 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25 18:17:48 +00:00
Nadav Rotem
2652c50f74 Implement a basic cost model for vector and scalar instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166642 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24 23:47:38 +00:00
Nadav Rotem
2704834661 Implement a basic VectorTargetTransformInfo interface to be used by the loop and bb vectorizers for modeling the cost of instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166593 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24 17:22:41 +00:00
Nadav Rotem
cbd9a19b5d Reapply the TargerTransformInfo changes, minus the changes to LSR and Lowerinvoke.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18 23:22:48 +00:00
Bob Wilson
3b9a911efc Temporarily revert the TargetTransform changes.
The TargetTransform changes are breaking LTO bootstraps of clang.  I am
working with Nadav to figure out the problem, but I am reverting it for now
to get our buildbots working.

This reverts svn commits: 165665 165669 165670 165786 165787 165997
and I have also reverted clang svn 165741

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166168 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18 05:43:52 +00:00
Nadav Rotem
e3d0e86919 Add a new interface to allow IR-level passes to access codegen-specific information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165665 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10 22:04:55 +00:00