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2013-01-01Add IRBuilder::CreateVectorSplat and use it to simplify code.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Remove the Function::getFnAttributes method in favor of using the AttributeSetBill Wendling
directly. This is in preparation for removing the use of the 'Attribute' class as a collection of attributes. That will shift to the AttributeSet class instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171253 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30LoopVectorizer: Fix a bug in the code that updates the loop exiting block.Nadav Rotem
LCSSA PHIs may have undef values. The vectorizer updates values that are used by outside users such as PHIs. The bug happened because undefs are not loop values. This patch handles these PHIs. PR14725 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171251 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26If all of the write objects are identified then we can vectorize the loop ↵Nadav Rotem
even if the read objects are unidentified. PR14719. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171124 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26LoopVectorizer: Optimize the vectorization of consecutive memory access when ↵Nadav Rotem
the iteration step is -1 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171114 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-26BBVectorize: Use VTTI to compute costs for intrinsics vectorizationHal Finkel
For the time being this includes only some dummy test cases. Once the generic implementation of the intrinsics cost function does something other than assuming scalarization in all cases, or some target specializes the interface, some real test cases can be added. Also, for consistency, I changed the type of IID from unsigned to Intrinsic::ID in a few other places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171079 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25LoopVectorize: Enable vectorization of the fmuladd intrinsicHal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171076 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25BBVectorize: Enable vectorization of the fmuladd intrinsicHal Finkel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171075 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-24LoopVectorizer: When checking for vectorizable types, also checkNadav Rotem
the StoreInst operands. PR14705. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171023 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-24LoopVectorizer: Fix an endless loop in the code that looks for reductions.Nadav Rotem
The bug was in the code that detects PHIs in if-then-else block sequence. PR14701. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171008 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-23LoopVectorize: Fix accidentaly inverted condition.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171001 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-23LoopVectorize: For scalars and void types there is no need to compute vector ↵Benjamin Kramer
insert/extract costs. Fixes an assert during the build of oggenc in the test suite. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171000 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-23Loop Vectorizer: Update the cost model of scatter/gather operations and makeNadav Rotem
them more expensive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170995 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-22Change 'AttrVal' to 'AttrKind' to better reflect that it's a kind of ↵Bill Wendling
attribute instead of the value of the attribute. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170972 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21Remove duplicate includes.Roman Divacky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170902 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21Enable if-conversion.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170841 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21BB-Vectorizer: Check the cost of the store pointer typeNadav Rotem
and not the return type, which is void. A number of test cases fail after adding the assertion in TTImpl. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170828 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21Fix a bug in the code that checks if we can vectorize loops while using dynamicNadav Rotem
memory bound checks. Before the fix we were able to vectorize this loop from the Livermore Loops benchmark: for ( k=1 ; k<n ; k++ ) x[k] = x[k-1] + y[k]; git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170811 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20LoopVectorize: Fix a bug in the scalarization of instructions.Nadav Rotem
Before if-conversion we could check if a value is loop invariant if it was declared inside the basic block. Now that loops have multiple blocks this check is incorrect. This fixes External/SPEC/CINT95/099_go/099_go git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170756 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Loop Vectorizer: turn-off if-conversion.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170708 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Loop Vectorizer: Enable if-conversion.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170632 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20whitespaceNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170626 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19LoopVectorize: Make iteration over induction variables not depend on pointer ↵Benjamin Kramer
values. MapVector is a bit heavyweight, but I don't see a simpler way. Also the InductionList is unlikely to be large. This should help 3-stage selfhost compares (PR14647). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170528 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19Rename the 'Attributes' class to 'Attribute'. It's going to represent a ↵Bill Wendling
single attribute in the future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170502 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-18LoopVectorize: Emit reductions as log2(vectorsize) shuffles + vector ops ↵Benjamin Kramer
instead of scalar operations. For example on x86 with SSE4.2 a <8 x i8> add reduction becomes movdqa %xmm0, %xmm1 movhlps %xmm1, %xmm1 ## xmm1 = xmm1[1,1] paddw %xmm0, %xmm1 pshufd $1, %xmm1, %xmm0 ## xmm0 = xmm1[1,0,0,0] paddw %xmm1, %xmm0 phaddw %xmm0, %xmm0 pextrb $0, %xmm0, %edx instead of pextrb $2, %xmm0, %esi pextrb $0, %xmm0, %edx addb %sil, %dl pextrb $4, %xmm0, %esi addb %dl, %sil pextrb $6, %xmm0, %edx addb %sil, %dl pextrb $8, %xmm0, %esi addb %dl, %sil pextrb $10, %xmm0, %edi pextrb $14, %xmm0, %edx addb %sil, %dil pextrb $12, %xmm0, %esi addb %dil, %sil addb %sil, %dl git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170439 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13Enable the Loop Vectorizer by default for O2 and O3. Disable if-conversion ↵Nadav Rotem
by default. I plan to revert this patch later today. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170157 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13Teach the cost model about the optimization in r169904: Truncation of ↵Nadav Rotem
induction variables costs the same as scalar trunc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170051 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12Fix indentation.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170005 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12LoopVectorizer: Use the "optsize" attribute to decide if we are allowed to ↵Nadav Rotem
increase the function size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170004 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12Fix the ascii drawing that was ruined when I split the H and CPPNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169955 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12fix a typo.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169953 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12LoopVectorizer: When -Os is used, vectorize only loops that dont require a ↵Nadav Rotem
tail loop. There is no testcase because I dont know of a way to initialize the loop vectorizer pass without adding an additional hidden flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169950 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11PR14574. Fix a bug in the code that calculates the mask the converted PHIs ↵Nadav Rotem
in if-conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169916 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11Loop Vectorize: optimize the vectorization of trunc(induction_var). The ↵Nadav Rotem
truncation is now done on scalars. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169904 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11Fix PR14565. Don't if-convert loops that have switch statements in them.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169813 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-10Split the LoopVectorizer into H and CPP.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169771 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-10Add support for reverse induction variables. For example:Nadav Rotem
while (i--) sum+=A[i]; git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169752 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-09LoopVectorize: support vectorizing intrinsic callsPaul Redmond
- 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
2012-12-09test commit.Paul Redmond
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169709 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04LoopVectorizer: Increase the number of pointers that can be tested at ↵Nadav Rotem
runtime. If we cant prove statically that the pointers are disjoint then we add the runtime check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169334 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Enable if-conversion during vectorization.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169331 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Fix a bug in vectorization of if-converted reduction variables. If theNadav Rotem
reduction variable is not used outside the loop then we ran into an endless loop. This change checks if we found the original PHI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169324 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Add support for reduction variables when IF-conversion is enabled. Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169288 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Give scalar if-converted blocks half the score because they are not always ↵Nadav Rotem
executed due to CF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169223 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Add the last part that is needed for vectorization of if-converted code.Nadav Rotem
Added the code that actually performs the if-conversion during vectorization. We can now vectorize this code: for (int i=0; i<n; ++i) { unsigned k = 0; if (a[i] > b[i]) <------ IF inside the loop. k = k * 5 + 3; a[i] = k; <---- K is a phi node that becomes vector-select. } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169217 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04LoopVectorize.cpp: Suppress a warning. [-Wunused-variable]NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169195 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Fix whitespace.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169194 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03minor renaming, documentation and cleanups.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169175 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03IF-conversion: teach the cost-model how to grade if-converted loops.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169171 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Now that we have a basic if-conversion infrastructure we can rename theNadav Rotem
"single basic block loop vectorizer" to "innermost loop vectorizer". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169158 91177308-0d34-0410-b5e6-96231b3b80d8
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