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074e489dbc
llvm-6502/test/Transforms
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Arnold Schwaighofer 074e489dbc SLPVectorizer: Handle more horizontal reductions (disabled) 
Match reductions starting at binary operation feeding into a phi. The code
handles trees like

 r += v1 + v2 + v3 ...

and

 r += v1
 r += v2
 ...

and

 r *= v1 + v2 + ...

We currently only handle associative operations (add, fadd fast).

The code can now also handle reductions feeding into stores.

 a[i] = v1 + v2 + v3 + ...

The code is currently disabled behind the flag "-slp-vectorize-hor".  The cost
model for most architectures is not there yet.

I found one opportunity of a horizontal reduction feeding a phi in TSVC
(LoopRerolling-flt) and there are several opportunities where reductions feed
into stores.

radar://14607682

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191108 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-20 21:18:20 +00:00
..
ADCE [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
ArgumentPromotion [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
BBVectorize Prevent LoopVectorizer and SLPVectorizer running if the target has no vector registers. 2013-09-18 12:43:35 +00:00
BranchFolding
CodeExtractor [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
CodeGenPrepare [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
ConstantMerge [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
ConstProp Teach ConstantFolding about pointer address spaces 2013-08-20 21:20:04 +00:00
CorrelatedValuePropagation [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
DeadArgElim Debug Info Testing: update context from empty string to null. 2013-09-08 03:11:54 +00:00
DeadStoreElimination [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
DebugIR [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
EarlyCSE [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
FunctionAttrs [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
GCOVProfiling Debug Info Testing: update context from empty string to null. 2013-09-08 03:11:54 +00:00
GlobalDCE [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
GlobalOpt Don't shrink atomic ops to bool in GlobalOpt. 2013-09-09 22:00:13 +00:00
GVN Delete empty files. 2013-09-20 20:40:22 +00:00
IndVarSimplify Teach loop-idiom about address space pointer sizes 2013-09-11 05:09:42 +00:00
Inline Handle address spaces in TargetTransformInfo 2013-08-28 22:41:57 +00:00
InstCombine InstCombine: Canonicalize (gep i8* X, -(ptrtoint Y)) to (sub (ptrtoint X), (ptrtoint Y)) 2013-09-20 14:38:44 +00:00
InstSimplify [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
Internalize Merge these 2 tests in a single file. 2013-09-04 19:19:32 +00:00
IPConstantProp [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
JumpThreading [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LCSSA [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LICM Add testcase for r190631 2013-09-16 21:24:30 +00:00
LoopDeletion [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LoopIdiom Teach loop-idiom about address space pointer sizes 2013-09-11 05:09:42 +00:00
LoopRotate Debug Info Testing: updated to use NULL instead of "i32 0" in a few fields. 2013-09-06 21:03:58 +00:00
LoopSimplify [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LoopStrengthReduce Teach loop-idiom about address space pointer sizes 2013-09-11 05:09:42 +00:00
LoopUnroll Implement TTI getUnrollingPreferences for PowerPC 2013-09-11 21:20:40 +00:00
LoopUnswitch [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LoopVectorize Name the XCore target-specific subdirectories canonically. 2013-09-18 14:08:30 +00:00
LowerAtomic [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LowerExpectIntrinsic [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LowerInvoke [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LowerSwitch Revert patches to add case-range support for PR1255. 2013-09-09 19:14:35 +00:00
Mem2Reg Debug Info: add an identifier field to DICompositeType. 2013-08-26 22:39:55 +00:00
MemCpyOpt [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
MergeFunc Bugfix for PR17099: 2013-09-17 09:36:11 +00:00
MetaRenamer [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
ObjCARC Debug Info Testing: update context from empty string to null. 2013-09-08 03:11:54 +00:00
PhaseOrdering [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
PruneEH [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
Reassociate [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
Reg2Mem [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
ScalarRepl Debug Info Testing: updated to use NULL instead of "i32 0" in a few fields. 2013-09-06 21:03:58 +00:00
SCCP [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
SimplifyCFG Add test for untested path in SimplifyCFG 2013-09-14 02:44:02 +00:00
Sink [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
SLPVectorizer SLPVectorizer: Handle more horizontal reductions (disabled) 2013-09-20 21:18:20 +00:00
SROA [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
StripSymbols Fix a test to not fail for users with my name. :) 2013-08-29 00:41:22 +00:00
StructurizeCFG [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
TailCallElim [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
TailDup [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00