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* add -march to the testNadav Rotem2013-01-091-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171956 91177308-0d34-0410-b5e6-96231b3b80d8
* Efficient lowering of vector sdiv when the divisor is a splatted power of ↵Nadav Rotem2013-01-091-0/+72
| | | | | | | | | | | | | two constant. PR 14848. The lowered sequence is based on the existing sequence the target-independent DAG Combiner creates for the scalar case. Patch by Zvi Rackover. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171953 91177308-0d34-0410-b5e6-96231b3b80d8
* MIsched: add an ILP window property to machine model.Andrew Trick2013-01-091-13/+20
| | | | | | | | | | This was an experimental option, but needs to be defined per-target. e.g. PPC A2 needs to aggressively hide latency. I converted some in-order scheduling tests to A2. Hal is working on more test cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171946 91177308-0d34-0410-b5e6-96231b3b80d8
* ARM Cost Model: Add a basic vectorization unrolling test.Nadav Rotem2013-01-091-3/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171931 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the -licm pass from the loop vectorizer test because the loop ↵Nadav Rotem2013-01-0923-25/+25
| | | | | | vectorizer does it now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171930 91177308-0d34-0410-b5e6-96231b3b80d8
* Cost Model: Move the 'max unroll factor' variable to the TTI and add initial ↵Nadav Rotem2013-01-093-2/+31
| | | | | | Cost Model support on ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171928 91177308-0d34-0410-b5e6-96231b3b80d8
* Consider expression "0.0 - X" as the negation of X ifShuxin Yang2013-01-091-2/+13
| | | | | | | | - this expression is explicitly marked no-signed-zero, or - no-signed-zero of this expression can be derived from some context. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171922 91177308-0d34-0410-b5e6-96231b3b80d8
* Specify complete triple for fp128 tests.Tim Northover2013-01-082-2/+2
| | | | | | | | This avoids FileCheck failing over different comment characters in assembly (notably powerpc64 on Linux vs Darwin) and should fix David's build-bot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171886 91177308-0d34-0410-b5e6-96231b3b80d8
* This patch produces the correct addend value forJack Carter2013-01-081-0/+33
| | | | | | | | | | an R_MIPS_GPREL16 relocation. Contributer: Jack Carter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171882 91177308-0d34-0410-b5e6-96231b3b80d8
* This patch produces the correct pointer size Jack Carter2013-01-081-0/+52
| | | | | | | | | | | | | | value in the 64 bit .eh_frame section. It doesn't however allow exception handling to work yet since it depends on the correct relocation model being set in the ELF header flags. Contributer: Jack Carter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171881 91177308-0d34-0410-b5e6-96231b3b80d8
* Pad Short Functions for Intel AtomPreston Gurd2013-01-084-5/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | The current Intel Atom microarchitecture has a feature whereby when a function returns early then it is slightly faster to execute a sequence of NOP instructions to wait until the return address is ready, as opposed to simply stalling on the ret instruction until the return address is ready. When compiling for X86 Atom only, this patch will run a pass, called "X86PadShortFunction" which will add NOP instructions where less than four cycles elapse between function entry and return. It includes tests. This patch has been updated to address Nadav's review comments - Optimize only at >= O1 and don't do optimization if -Os is set - Stores MachineBasicBlock* instead of BBNum - Uses DenseMap instead of std::map - Fixes placement of braces Patch by Andy Zhang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171879 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow the asm printer to print fp128 values properly.Tim Northover2013-01-082-0/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171866 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure we don't emit instructions before a landingpad instruction.Bill Wendling2013-01-082-0/+89
| | | | | | | PR14782 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171846 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the C testcase to this file.Eric Christopher2013-01-081-0/+6
| | | | | | Suggested by Dave Blaikie. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171839 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the llvm-local DW_TAG_vector_type tag and add a test toEric Christopher2013-01-081-0/+23
| | | | | | make sure that vector types do work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171833 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark artificial types as such in the annotated debug output.David Blaikie2013-01-081-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171826 91177308-0d34-0410-b5e6-96231b3b80d8
* LoopVectorizer: Add support for floating point reductionsNadav Rotem2013-01-071-0/+29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171812 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some additional tests for the .bundle_lock align_to_end feature that didn'tEli Bendersky2013-01-074-0/+2878
| | | | | | | | | | | make into the last commit. Also, update the test-generation script to generate an exhaustive test for align_to_end as well, and include the generated test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171811 91177308-0d34-0410-b5e6-96231b3b80d8
* LoopVectorizer: When we vectorizer and widen loops we process many elements ↵Nadav Rotem2013-01-071-0/+50
| | | | | | | | | | | at once. This is a good thing, except for small loops. On small loops post-loop that handles scalars (and runs slower) can take more time to execute than the rest of the loop. This patch disables widening of loops with a small static trip count. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171798 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the align_to_end option to .bundle_lock in the MC implementation of alignedEli Bendersky2013-01-072-1/+5
| | | | | | | | | | bundling. The document describing this feature and the implementation has also been updated: https://sites.google.com/a/chromium.org/dev/nativeclient/pnacl/aligned-bundling-support-in-llvm git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171797 91177308-0d34-0410-b5e6-96231b3b80d8
* This change is to implement following rules:Shuxin Yang2013-01-071-0/+85
| | | | | | | | | | | | o. X/C1 * C2 => X * (C2/C1) (if C2/C1 is neither special FP nor denormal) o. X/C1 * C2 -> X/(C1/C2) (if C2/C1 is either specical FP or denormal, but C1/C2 is a normal Fp) Let MDC denote multiplication or dividion with one & only one operand being a constant o. (MDC ± C1) * C2 => (MDC * C2) ± (C1 * C2) (so long as the constant-folding doesn't yield any denormal or special value) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171793 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for separating strings for the split debug info DWARF5Eric Christopher2013-01-071-4/+4
| | | | | | | | | | | | | proposal. This leaves the strings in the skeleton die as strp, but in all dwo files they're accessed now via DW_FORM_GNU_str_index. Add support for dumping these sections and modify the fission-cu.ll testcase to have the correct strings and form. Fix a small bug in the fixed form sizes routine that involved out of array accesses for the table and add a FIXME in the extractFast routine to fix this up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171779 91177308-0d34-0410-b5e6-96231b3b80d8
* This patch addresses bug 14678 by fixing two problems in medium code modelBill Schmidt2013-01-072-0/+51
| | | | | | | | | | code generation. Variables addressed through a GlobalAlias were not being handled, and variables with available_externally linkage were treated incorrectly. The patch contains two new tests to verify the correct code generation for these cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171778 91177308-0d34-0410-b5e6-96231b3b80d8
* When code size is the priority (Oz, MinSize attribute), help llvmQuentin Colombet2013-01-071-0/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | turning a code like this: if (foo) free(foo) into that: free(foo) Move a call to free from basic block FB into FB's predecessor, P, when the path from P to FB is taken only if the argument of free is not equal to NULL. Some restrictions apply on P and FB to be sure that this code motion is profitable. Namely: 1. FB must have only one predecessor P. 2. FB must contain only the call to free plus an unconditional branch to S. 3. P's successors are FB and S. Because of 1., we will not increase the code size when moving the call to free from FB to P. Because of 2., FB will be empty after the move. Because of 2. and 3., P's branch instruction becomes useless, so as FB (simplifycfg will do the job). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171762 91177308-0d34-0410-b5e6-96231b3b80d8
* Make test/DebugInfo/member-pointers.ll portable by removing the TargetDataDavid Blaikie2013-01-071-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171759 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch the SCEV expander and LoopStrengthReduce to useChandler Carruth2013-01-074-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TargetTransformInfo rather than TargetLowering, removing one of the primary instances of the layering violation of Transforms depending directly on Target. This is a really big deal because LSR used to be a "special" pass that could only be tested fully using llc and by looking at the full output of it. It also couldn't run with any other loop passes because it had to be created by the backend. No longer is this true. LSR is now just a normal pass and we should probably lift the creation of LSR out of lib/CodeGen/Passes.cpp and into the PassManagerBuilder. =] I've not done this, or updated all of the tests to use opt and a triple, because I suspect someone more familiar with LSR would do a better job. This change should be essentially without functional impact for normal compilations, and only change behvaior of targetless compilations. The conversion required changing all of the LSR code to refer to the TTI interfaces, which fortunately are very similar to TargetLowering's interfaces. However, it also allowed us to *always* expect to have some implementation around. I've pushed that simplification through the pass, and leveraged it to simplify code somewhat. It required some test updates for one of two things: either we used to skip some checks altogether but now we get the default "no" answer for them, or we used to have no information about the target and now we do have some. I've also started the process of removing AddrMode, as the TTI interface doesn't use it any longer. In some cases this simplifies code, and in others it adds some complexity, but I think it's not a bad tradeoff even there. Subsequent patches will try to clean this up even further and use other (more appropriate) abstractions. Yet again, almost all of the formatting changes brought to you by clang-format. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171735 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a mistaken commit that included some debugging code.David Tweed2013-01-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171734 91177308-0d34-0410-b5e6-96231b3b80d8
* There was a switch fall-through in the parser for textual LLVM that causedDavid Tweed2013-01-073-4/+4
| | | | | | | | | bogus comparison operands to default to eq/oeq. Fix that, fix a couple of tests that accidentally passed and test for bogus comparison opeartors explicitly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171733 91177308-0d34-0410-b5e6-96231b3b80d8
* Make the MergeGlobals pass correctly handle the address space qualifiers of ↵Silviu Baranga2013-01-071-0/+12
| | | | | | the global variables. We partition the set of globals by their address space, and apply the same the trasnformation as before to merge them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171730 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch BBVectorize to directly depend on having a TTI analysis.Chandler Carruth2013-01-0710-15/+15
| | | | | | | | | | | | | This could be simplified further, but Hal has a specific feature for ignoring TTI, and so I preserved that. Also, I needed to use it because a number of tests fail when switching from a null TTI to the NoTTI nonce implementation. That seems suspicious to me and so may be something that you need to look into Hal. I worked it by preserving the old behavior for these tests with the flag that ignores all target info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171722 91177308-0d34-0410-b5e6-96231b3b80d8
* PR14759: Debug info support for C++ member pointers.David Blaikie2013-01-071-0/+34
| | | | | | | | This works fine with GDB for member variable pointers, but GDB's support for member function pointers seems to be quite unrelated to DW_TAG_ptr_to_member_type. (see GDB bug 14998 for details) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171698 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix suffix handling for parsing and printing of cvtsi2ss, cvtsi2sd, ↵Craig Topper2013-01-069-116/+156
| | | | | | | | | | | | | cvtss2si, cvttss2si, cvtsd2si, and cvttsd2si to match gas behavior. cvtsi2* should parse with an 'l' or 'q' suffix or no suffix at all. No suffix should be treated the same as 'l' suffix. Printing should always print a suffix. Previously we didn't parse or print an 'l' suffix. cvtt*2si/cvt*2si should parse with an 'l' or 'q' suffix or not suffix at all. No suffix should use the destination register size to choose encoding. Printing should not print a suffix. Original 'l' suffix issue with cvtsi2* pointed out by Michael Kuperstein. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171668 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for PR14739. It's not safe to fold a load into a call across a store. ↵Evan Cheng2013-01-061-4/+21
| | | | | | Thanks to Nick Lewycky for the initial patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171665 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a crash in LSR replaceCongruentIVs.Andrew Trick2013-01-061-0/+44
| | | | | | | Indirect branch in the preheader crashes replaceCongruentIVs. Fixes rdar://12910141. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171653 91177308-0d34-0410-b5e6-96231b3b80d8
* [Object][ELF] Fix incorrect size of members for the 64 version of Elf_Phdr_Impl.Michael J. Spencer2013-01-062-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171650 91177308-0d34-0410-b5e6-96231b3b80d8
* [objdump] Add --private-headers, -p.Michael J. Spencer2013-01-062-0/+8
| | | | | | This currently prints the ELF program headers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171649 91177308-0d34-0410-b5e6-96231b3b80d8
* Include access modifiers in subprogram metadata IR comment.David Blaikie2013-01-051-5/+9
| | | | | | | Based on code review feedback in r171604 from Chandler Carruth & Eric Christopher. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171636 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit DW_TAG_formal_parameter for unnamed parameters.David Blaikie2013-01-051-7/+14
| | | | | | | | | | This change essentially reverts r87069 which came without a test case. It causes no regressions in the GDB 7.5 test suite & fixes 25 xfails (commit to the test suite to follow). If anyone can present a test case that demonstrates why this check is necessary I'd be happy to account for it in one way or another. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171609 91177308-0d34-0410-b5e6-96231b3b80d8
* Recommit r171461 which was incorrectly reverted. Mark DIV/IDIV instructions ↵Craig Topper2013-01-051-0/+31
| | | | | | hasSideEffects=1 because they can trap when dividing by 0. This is needed to keep early if conversion from moving them across basic blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171608 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert revision 171524. Original message:Nadav Rotem2013-01-054-76/+5
| | | | | | | | | | | | | | | | | | | | | | | URL: http://llvm.org/viewvc/llvm-project?rev=171524&view=rev Log: The current Intel Atom microarchitecture has a feature whereby when a function returns early then it is slightly faster to execute a sequence of NOP instructions to wait until the return address is ready, as opposed to simply stalling on the ret instruction until the return address is ready. When compiling for X86 Atom only, this patch will run a pass, called "X86PadShortFunction" which will add NOP instructions where less than four cycles elapse between function entry and return. It includes tests. Patch by Andy Zhang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171603 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo. Remove the duplicated test.Nadav Rotem2013-01-051-25/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171584 91177308-0d34-0410-b5e6-96231b3b80d8
* iLoopVectorize: Non commutative operators can be used as reduction variables ↵Nadav Rotem2013-01-052-3/+31
| | | | | | | | | | as long as the reduction chain is used in the LHS. PR14803. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171583 91177308-0d34-0410-b5e6-96231b3b80d8
* Force a fixed unroll count on the target independent tests.Nadav Rotem2013-01-0527-27/+27
| | | | | | | | This should fix clang-native-arm-cortex-a9. Thanks Renato. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171582 91177308-0d34-0410-b5e6-96231b3b80d8
* tabs-to-spacesAndrew Trick2013-01-041-44/+43
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171550 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not vectorize loops with subtraction reductionsPaul Redmond2013-01-042-1/+51
| | | | | | | | | | Since subtraction does not commute the loop vectorizer incorrectly vectorizes reductions such as x = A[i] - x. Disabling for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171537 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a name for the anonymous type we're creating for subrangeEric Christopher2013-01-044-42/+83
| | | | | | | | types and a FIXME for what we should be doing. Should solve the immediacy of PR12069 where our debug info is crashing another tool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171536 91177308-0d34-0410-b5e6-96231b3b80d8
* The current Intel Atom microarchitecture has a feature whereby when a functionPreston Gurd2013-01-044-5/+76
| | | | | | | | | | | | | | | | | | | returns early then it is slightly faster to execute a sequence of NOP instructions to wait until the return address is ready, as opposed to simply stalling on the ret instruction until the return address is ready. When compiling for X86 Atom only, this patch will run a pass, called "X86PadShortFunction" which will add NOP instructions where less than four cycles elapse between function entry and return. It includes tests. Patch by Andy Zhang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171524 91177308-0d34-0410-b5e6-96231b3b80d8
* [Object][ELF] Add a maximum alignment. This is used by createELFObjectFile ↵Michael J. Spencer2013-01-042-0/+0
| | | | | | to create a properly aligned reader. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171520 91177308-0d34-0410-b5e6-96231b3b80d8
* [mips] MipsTargetLowering::getSetCCResultType should return a vector type ifAkira Hatanaka2013-01-041-0/+16
| | | | | | | | vectors are being compared. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171517 91177308-0d34-0410-b5e6-96231b3b80d8
* Memory Dependence Analysis: fix a miscompile that uses DT to approxmiate theManman Ren2013-01-041-0/+54
| | | | | | | | | | | | | reachablity. We conservatively approximate the reachability analysis by saying it is not reachable if there is a single path starting from "From" and the path does not reach "To". rdar://12801584 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171512 91177308-0d34-0410-b5e6-96231b3b80d8
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