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2012-10-18Reapply the TargerTransformInfo changes, minus the changes to LSR and ↵Nadav Rotem38-225/+720
Lowerinvoke. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18cleanup the comment.Nadav Rotem1-1/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166247 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Fix case for include of Compiler.h.Jordan Rose1-1/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166243 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Add move constructors for OwningPtr and OwningArrayPtr.Jordan Rose1-0/+18
While LLVM itself is still C++03, there's no reason why tools built on top of it can't use C++11 features. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166242 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Add a T&& constructor to llvm::Optional.Jordan Rose1-0/+9
This allows llvm::Optional to be used with movable-but-not-copyable types. While LLVM itself is still C++03, there's no reason why tools built on top of it can't use C++11 features. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166241 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Mark bugpoint tests with XFAIL when building with LTO. <rdar://problem/12473675>Bob Wilson3-0/+3
The LTO Internalize pass is hiding symbols needed by the bugpoint-passes plug-in. We need to add a flag to control whether Internalize should be run. This is a temporary workaround to make these tests pass in the meantime. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166239 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Fix a bug where a 32-bit address with the high bit does not get symbolicatedKevin Enderby1-2/+3
because the value is incorrectly being signed extended when passed to SymbolLookUp(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166234 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18fix a naming typoNadav Rotem1-6/+4
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166232 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18test: Add a lit config variable to check if LTO is enabled.Daniel Dunbar3-0/+16
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166225 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18lit: Allow XFAIL: lines to also refer to "features".Daniel Dunbar3-13/+23
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166224 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18[ms-inline asm] Add a size argument to the LookupInlineAsmIdentifier() callback,Chad Rosier2-2/+5
which will be used by the asm matcher in the near future. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166222 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Use an export list when building JIT unittests. <rdar://problem/12473675>Bob Wilson1-0/+7
When building with LTO, the internalize pass is hiding some global symbols that are necessary for the JIT unittests. It seems like that may be a bug in LTO to do that by default, but until that gets fixed, this change makes sure that we export the necessary symbols for the tests to pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166220 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Use pre-python 2.5 syntax in lit.cfg.Sebastian Pop1-1/+4
Author: Quentin Neill <qneill@codeaurora.org> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166217 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Clear unknown mem ops when merging stack slots (pr14090)Sebastian Pop2-6/+89
When merging stack slots, if StackColoring::remapInstructions gets a value back from GetUnderlyingObject that it does not know about or is not itself a stack slot, clear the memory operand in case it aliases the merged slot. This prevents the introduction of incorrect aliasing information. Author: Matthew Curtis <mcurtis@codeaurora.org> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166216 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Change MachineFrameInfo::StackObject::Alloca from Value* to AllocaInst*Sebastian Pop2-4/+6
This more accurately reflects what is actually being stored in the field. No functionality change intended. Author: Matthew Curtis <mcurtis@codeaurora.org> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166215 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18[ms-inline asm] Have the LookupInlineAsmIdentifier() callback function return aChad Rosier2-28/+15
*NamedDecl. In turn, build the expressions after we're finished parsing the asm. This avoids a crasher if the lookup fails. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166212 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Revert "We need this symbol after an LTO build."Bob Wilson1-1/+0
This reverts commit 165776. The plug-in uses this symbol; it does not define it. It needs to be exported from bugpoint itself, not from the plug-in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166207 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Avoid reconstructing the pointer set when searching for duplicated ↵Nadav Rotem1-10/+7
read/write pointers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166205 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Update the LangRef documentation for the per pointer address space support.Micah Villmow1-4/+10
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166201 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Cosmetic change -- move two simplifiers to the right commented statement group.Meador Inge1-2/+2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166199 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18instcombine: Migrate strcpy optimizationsMeador Inge6-109/+147
This patch migrates the strcpy optimizations from the simplify-libcalls pass into the instcombine library call simplifier. Note also that StrCpyChkOpt has been updated with a few simplifications that were being done in the simplify-libcalls version of StrCpyOpt, but not in the migrated implementation of StrCpyOpt. There is no reason to overload StrCpyOpt with fortified and regular simplifications in the new model since there is already a dedicated simplifier for __strcpy_chk. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166198 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18test commit: verifying access from new addressEli Bendersky1-1/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166197 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18In SimplifySelectOps we pulled two loads through a select node despite the ↵Nadav Rotem2-0/+65
fact that one was dependent on the other. rdar://12513091 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166196 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18When looking for a vector representation of a scalar, do a single lookup. ↵Nadav Rotem1-7/+14
Also, cache the result of the broadcast instruction. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166191 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18[ms-inline asm] Move most of the AsmParsing logic in clang back into the MCChad Rosier2-34/+221
layer. Add the ParseMSInlineAsm() function, which is the new interface to clang. Also expose the new MCAsmParserSemaCallback interface, which is used by the back-end to do name lookup in Sema. Finally, remove the now defunct APIs introduced in r165946. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166183 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18This patch fixes failures in the SingleSource/Regression/C/uint64_to_floatUlrich Weigand2-1/+73
test case on PowerPC caused by rounding errors when converting from a 64-bit integer to a single-precision floating point. The reason for this are double-rounding effects, since on PowerPC we have to convert to an intermediate double-precision value first, which gets rounded to the final single-precision result. The patch fixes the problem by preparing the 64-bit integer so that the first conversion step to double-precision will always be exact, and the final rounding step will result in the correctly-rounded single-precision result. The generated code sequence is equivalent to what GCC would generate. When -enable-unsafe-fp-math is in effect, that extra effort is omitted and we accept possible rounding errors (just like GCC does as well). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Refactor insert and extract of sub-integers into static helpers thatChandler Carruth1-68/+84
operate purely on values. Sink the alloca loading and storing logic into the rewrite routines that are specific to alloca-integer-rewrite driving. This is just a refactoring here, but the subsequent step will be to reuse the insertion and extraction logic when rewriting integer loads and stores that have been split and decomposed into narrower loads and stores. No functionality changed other than different names for instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166176 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18This FIXME was fixed some time ago. =]Chandler Carruth1-3/+0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166175 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Introduce a BarrierNoop pass, a hack designed to allow *some* controlChandler Carruth5-0/+62
over the implicitly-formed-and-nesting CGSCC pass manager and function pass managers, especially when using them on the opt commandline or using extension points in the module builder. The '-barrier' opt flag (or the pass itself) will create a no-op module pass in the pipeline, resetting the pass manager stack, and allowing the creation of a new pipeline of function passes or CGSCC passes to be created that is independent from any previous pipelines. For example, this can be used to test running two CGSCC passes in independent CGSCC pass managers as opposed to in the same CGSCC pass manager. It also allows us to introduce a further hack into the PassManagerBuilder to separate the O0 pipeline extension passes from the always-inliner's CGSCC pass manager, which they likely do not want to participate in... At the very least none of the Sanitizer passes want this behavior. This fixes a bug with ASan at O0 currently, and I'll commit the ASan test which covers this pass. I'm happy to add a test case that this pass exists and works, but not sure how much time folks would like me to spend adding test cases for the details of its behavior of partition pass managers.... The whole thing is just vile, and mostly intended to unblock ASan, so I'm hoping to rip this all out in a brave new pass manager world. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166172 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18remove unused variable to fix a warning.Nadav Rotem1-2/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166170 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Add a small example which shows a vectorizable loop with a non-pow-of-two countNadav Rotem1-2/+10
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166169 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Temporarily revert the TargetTransform changes.Bob Wilson44-821/+317
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
2012-10-18Remove the use of dominators and AA.Nadav Rotem1-8/+0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166167 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Vectorizer: Add support for loops with an unknown count. For example:Nadav Rotem3-73/+162
for (i=0; i<n; i++){ a[i] = b[i+1] + c[i+3]; } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166165 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Revert r166157 because some tests fail...Bill Wendling1-3/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166159 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Check that the operand of the GEP is not the GEP itself. This occurred ↵Bill Wendling1-1/+3
during an LTO build of LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166157 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Revert part of r166049 back and enable test case in r166125.Michael Liao2-1/+42
- Folding (trunc (concat ... X )) to (concat ... (trunc X) ...) is valid when '...' are all 'undef's. - r166125 relies on this transformation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166155 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17LoopVectorize.cpp: Fix a warning. [-Wunused-variable]NAKAMURA Takumi1-2/+1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166153 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Disable extract-concat test case temporarilyMichael Liao1-1/+2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166141 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Remove redundant SetInsertPoint call.Jakub Staszak1-1/+0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166138 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Revert r166049Michael Liao2-64/+0
- In general, it's unsafe for this transformation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166135 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Add conditional branch instructions and their patterns.Reed Kotler12-2/+577
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166134 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Fix some typos and wrong indenting.Roman Divacky1-4/+4
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166128 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Teach DAG combine to fold (extract_subvec (concat v1, ..) i) to v_iMichael Liao2-2/+34
- If the extracted vector has the same type of all vectored being concatenated together, it should be simplified directly into v_i, where i is the index of the element being extracted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166125 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Switch MRI::UsedPhysRegs to a register unit bit vector.Jakob Stoklund Olesen2-12/+20
This is a more compact, less redundant representation, and it avoids scanning long lists of aliases for ARM D-registers, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166124 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Update the release notes about how to enable the loop vectorizer.Nadav Rotem1-2/+2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166123 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Add a really faster pre-RA scheduler (-pre-RA-sched=linearize). It doesn't useEvan Cheng4-3/+165
any scheduling heuristics nor does it build up any scheduling data structure that other heuristics use. It essentially linearize by doing a DFA walk but it does handle glues correctly. IMPORTANT: it probably can't handle all the physical register dependencies so it's not suitable for x86. It also doesn't deal with dbg_value nodes right now so it's definitely is still WIP. rdar://12474515 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166122 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Merge MRI::isPhysRegOrOverlapUsed() into isPhysRegUsed().Jakob Stoklund Olesen4-11/+10
All callers of these functions really want the isPhysRegOrOverlapUsed() functionality which also checks aliases. For historical reasons, targets without register aliases were calling isPhysRegUsed() instead. Change isPhysRegUsed() to also check aliases, and switch all isPhysRegOrOverlapUsed() callers to isPhysRegUsed(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166117 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Update the release notes about the store-merge dag optimization.Nadav Rotem1-0/+2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166116 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Update the release notes about the new TargetTransformInfo API changes.Nadav Rotem1-0/+5
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166115 91177308-0d34-0410-b5e6-96231b3b80d8