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2012-12-31Transform (A == C1 || A == C2) into (A & ~(C1 ^ C2)) == C1Jakub Staszak
if C1 and C2 differ only with one bit. Fixes PR14708. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171270 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Support ppcf128 in SelectionDAG::getConstantFPHal Finkel
Fixes pr14751. Patch by Kai; Thanks! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171261 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30convert a bunch of callers from DataLayout::getIndexedOffset() to ↵Nuno Lopes
GEP::accumulateConstantOffset(). The later API is nicer than the former, and is correct regarding wrap-around offsets (if anyone cares). There are a few more places left with duplicated code, which I'll remove soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171259 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Documentation: add a section to prevent spurious test failures like the oneDmitri Gribenko
fixed in r171243. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171258 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Use the predicate methods off of AttributeSet instead of Attribute.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171257 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Remove the Function::getRetAttributes method in favor of using the ↵Bill Wendling
AttributeSet accessor method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171256 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Remove Function::getParamAttributes and use the AttributeSet accessor ↵Bill Wendling
methods instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171255 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
2012-12-30s/hasAttribute/contains/g to be more consistent with other method names.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171252 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
2012-12-30Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ↵Dmitri Gribenko
ModuleID This is done to avoid odd test failures, like the one fixed in r171243. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171250 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Add a few more c'tors:Bill Wendling
* One that accepts a single Attribute::AttrKind. * One that accepts an Attribute::AttrKind plus a list of values. This is for attributes defined like this: #1 = attributes { align = 4 } * One that accepts a string, for target-specific attributes like this: #2 = attributes { "cpu=cortex-a8" } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171249 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Add a check to the test ↵Dmitri Gribenko
Analysis/ScalarEvolution/2010-09-03-RequiredTransitive.ll This test did not test anything at all (except for opt crashing, but that was not the reason why it was added). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Add a few (as yet unused) query methods to determine if the attribute that'sBill Wendling
stored here is of a certain kind. This is in preparation for when an Attribute object represents a single attribute, instead of a bitmask of attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171247 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ↵Dmitri Gribenko
ModuleID This is done to avoid odd test failures, like the one fixed in r171243. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171246 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Uniquify the AttributeImpl based on the Constant pointer, since those areBill Wendling
already uniquified. Note: This will be expanded in the future to add more than just one pointer value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171245 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30s/Raw/getBitMask/g to be more in line with current naming conventions. This ↵Bill Wendling
method won't be sticking around. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171244 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30llvm/test/Transforms/GVN/null-aliases-nothing.ll: Fix a RUN line not to emit ↵NAKAMURA Takumi
ModuleID. Larry Evans reported it fails if source tree contains "load", like "download". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171243 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29Remove intrinsic specific instructions for (V)SQRTPS/PD. Instead lower to ↵Craig Topper
target-independent ISD nodes and use the existing patterns for those. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29Merge similar functionality using a nested switch.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171229 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29Remove intrinsic specific instructions for SSE/SSE2/AVX floating point ↵Craig Topper
max/min instructions. Lower them to target specific nodes and use those patterns instead. This also allows them to be commuted if UnsafeFPMath is enabled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171227 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29Simplify code, no functionality change.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171226 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29Delete executive bit on ./lib/Target/Hexagon/HexagonAsmPrinter.h.Jakub Staszak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171225 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29Use a 'Constant' object instead of a bit field to store the attribute data.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171221 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29Use the accessor method instead of the raw ivar to get the bits.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171220 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28Nuke some dead code that snuck in some how. I thought I had alreadyChandler Carruth
deleted this, but apparantly not. Charmingly, Clang didn't warn on it but GCC did. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171197 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28Fix a stunning oversight in the inline cost analysis. It was neverChandler Carruth
propagating one of the values it simplified to a constant across a myriad of instructions. Notably, ptrtoint instructions when we had a constant pointer (say, 0) didn't propagate that, blocking a massive number of down-stream optimizations. This was uncovered when investigating why we fail to inline and delete the boilerplate in: void f() { std::vector<int> v; v.push_back(1); } It turns out most of the efforts I've made thus far to improve the analysis weren't making it far purely because of this. After this is fixed, the store-to-load forwarding patch enables LLVM to optimize the above to an empty function. We still can't nuke a second push_back, but for different reasons. There is a very real chance this will cause somewhat noticable changes in inlining behavior, so please let me know if you see regressions (or improvements!) because of this patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171196 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28Teach the inline cost analysis about calls that can be simplified andChandler Carruth
how to propagate constants through insert and extract value instructions. With the recent improvements to instsimplify, this allows inline cost analysis to constant fold through intrinsic functions, including notably the with.overflow intrinsic math routines which often show up inside of STL abstractions. This is yet another piece in the puzzle of breaking down the code for: void f() { std::vector<int> v; v.push_back(1); } But it still isn't enough. There are a pile of bugs in inline cost still blocking this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171195 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28Teach instsimplify to use the constant folder where appropriate forChandler Carruth
constant folding calls. Add the initial tests for this which show that now instsimplify can simplify blindingly obvious code patterns expressed with both intrinsics and library calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171194 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28Add entry points to instsimplify for simplifying calls. The entry pointsChandler Carruth
are nice and decomposed so that we can simplify synthesized calls as easily as actually call instructions. The internal utility still has the same behavior, it just now operates on a more generic interface so that I can extend the set of call simplifications that instsimplify knows about. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171189 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28Add proper support for -fsanitize-blacklist= flag for TSan and MSan. LLVM part.Alexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171183 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28CostModel: initial checkin for code that estimates the cost of special shuffles.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171180 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28wrap 80-col lines.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171179 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28AVX: Move the ZEXT/ANYEXT DAGCo optimizations to the lowering of these ↵Nadav Rotem
optimizations. The old test cases still cover all of these lowering/optimizations. The single change that we have is that now anyext does not need to zero a register, because it does not use the exact code path as the zero_extend. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Reverse the 'if' condition and reduce the indentation.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171172 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Merge basic_sse12_fp_binop_p_int and basic_sse12_fp_binop_p_y_int multiclasses.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171171 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27AVX/AVX2: Move the SEXT lowering code from a target specific DAGco to a ↵Nadav Rotem
lowering function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171170 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Merge basic_sse12_fp_binop_p and basic_sse12_fp_binop_p_y multiclasses.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171166 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Add support to BasicBlocks for iterating backwards over theChandler Carruth
instructions. This just exposes the already present reverse iterators of the instruction ilist. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Provide a common half-open interval map info implementation, and justChandler Carruth
re-use that for SlotIndexes. This way other users who want half-open semantics can share the implementation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171158 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Make this parameter be named consistently with most otherChandler Carruth
getAnalysisUsage implementations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171157 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27docs: Add FAQ about "storing to a virtual register".Sean Silva
This came up for the N+1'st time today in IRC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171155 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27docs: Move link to the new "external tutorials" area.Sean Silva
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171154 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27[ASan] Fix lifetime intrinsics handling. Now for each intrinsic we check if ↵Alexey Samsonov
it describes one of 'interesting' allocas. Assume that allocas can go through casts and phi-nodes before apperaring as llvm.lifetime arguments git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171153 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27DAGCombinerInformation: add a getter that exposes the dagcombine level.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171152 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Fix new[]/delete mismatch in FullDependence spotted by AddressSanitizerAlexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171150 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27docs: Update the benchmark with updated perf numbers.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171149 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27On AVX/AVX2 the type v8i1 is legalized to v8i16, which is an XMM sizedNadav Rotem
register. In most cases we actually compare or select YMM-sized registers and mixing the two types creates horrible code. This commit optimizes some of the transition sequences. PR14657. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171148 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27AVX/AVX2: Move the code that lowers vector-trunc from a DAGCo-hook to custom ↵Nadav Rotem
lowering hook. The vector truncs were scalarized during LegalizeVectorOps, later vectorized again by some DAGCombine optimization and finally, lowered by a dagcombing optimization. Now, they are properly lowered during LegalizeVectorOps. No new testcase because the original testcases still work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171146 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-27Add hasSideEffects=0 to some forms of ROUND, RCP, and RSQRT.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171143 91177308-0d34-0410-b5e6-96231b3b80d8
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