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2013-02-05When the target-independent DAGCombiner inferred a higher alignment for a load,Owen Anderson
it would replace the load with one with the higher alignment. However, it did not place the new load in the worklist, which prevented later DAG combines in the same phase (for example, target-specific combines) from ever seeing it. This patch corrects that oversight, and updates some tests whose output changed due to slightly different DAGCombine outputs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174343 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05Added LLVM Asm/Bitcode Reader/Writer support for new IR keyword ↵Michael Gottesman
externally_initialized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174340 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04[Stack Alignment] emit warning instead of a hard errorManman Ren
Per discussion in rdar://13127907, we should emit a hard error only if people write code where the requested alignment is larger than achievable and assumes the low bits are zeros. A warning should be good enough when we are not sure if the source code assumes the low bits are zeros. rdar://13127907 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174336 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04Hexagon: Add V4 combine instructions and some more Def Pats for V2.Jyotsna Verma
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174331 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04Disable a couple more vector splat optimizations on PPC.Benjamin Kramer
I didn't see those because the test case used "not grep". FileCheck the test and XFAIL it, preserving the old optimization, so this can be fixed eventually. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174330 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04X86: Open up some opportunities for constant folding by postponing shift ↵Benjamin Kramer
lowering. Fixes PR15141. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174327 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04SelectionDAG: Teach FoldConstantArithmetic how to deal with vectors.Benjamin Kramer
This required disabling a PowerPC optimization that did the following: input: x = BUILD_VECTOR <i32 16, i32 16, i32 16, i32 16> lowered to: tmp = BUILD_VECTOR <i32 8, i32 8, i32 8, i32 8> x = ADD tmp, tmp The add now gets folded immediately and we're back at the BUILD_VECTOR we started from. I don't see a way to fix this currently so I left it disabled for now. Fix some trivially foldable X86 tests too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174325 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04Update debugging test for change in expected metadata.Tim Northover
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174321 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04[DebugInfo] remove more node indirection (this time from the subprogram's ↵David Blaikie
variable lists) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174305 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04ARM cost model: Penalize insertelement into D subregistersArnold Schwaighofer
Swift has a renaming dependency if we load into D subregisters. We don't have a way of distinguishing between insertelement operations of values from loads and other values. Therefore, we are pessimistic for now (The performance problem showed up in example 14 of gcc-loops). radar://13096933 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174300 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-02Remove the (apparently) unnecessary debug info metadata indirection.David Blaikie
The main lists of debug info metadata attached to the compile_unit had an extra layer of metadata nodes they went through for no apparent reason. This patch removes that (& still passes just as much of the GDB 7.5 test suite). If anyone can show evidence as to why these extra metadata nodes are there I'm open to reverting this patch & documenting why they're there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174266 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-02Start static relocation implementation for mips16.Reed Kotler
This checkin makes hello world work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174264 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-02Removing ssp and uwtable from the testcaseManman Ren
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174259 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-02rdar://13126763Shuxin Yang
Fix a bug in DAGCombine. The symptom is mistakenly optimizing expression "x + x*x" into "x * 3.0". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174239 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01[Dwarf] avoid emitting multiple AT_const_value for static memebers.Manman Ren
Testing case is reduced from MultiSource/BenchMarks/Prolangs-C++/deriv1. rdar://problem/13071590 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174235 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01LLVM enablement for some older PowerPC CPUsBill Schmidt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174230 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Add a testcase for some past-the-end address subtleties.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174210 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Two changes relevant to LEA and x32:David Sehr
1) allows the use of RIP-relative addressing in 32-bit LEA instructions under x86-64 (ILP32 and LP64) 2) separates the size of address registers in 64-bit LEA instructions from control by ILP32/LP64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174208 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Hexagon: Test case to confirm generation of indexed loads with zero offset.Jyotsna Verma
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174196 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01InstSimplify: stripAndComputeConstantOffsets can be called with vectors of ↵Benjamin Kramer
pointers too. Prepare it for vectors of pointers and handle simple cases. We don't handle complicated cases because accumulateConstantOffset bails on pointer vectors. Fixes selfhost on i386. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174179 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Add explicit triples to AArch64 testsTim Northover
Only Linux is supported at the moment, and other platforms quickly fault. As a result these tests would fail on non-Linux hosts. It may be worth making the tests more generic again as more platforms are supported. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174170 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Revert r174152. The shift amount may overflow and in that case this ↵Nadav Rotem
transformation is illegal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174156 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Optimize shift lefts of a constant by a value plus constant into a single shift.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174152 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-01Rewrite instsimplify's handling if icmp on pointer values to remove theDan Gohman
remaining use of AliasAnalysis concepts such as isIdentifiedObject to prove pointer inequality. @external_compare in test/Transforms/InstSimplify/compare.ll shows a simple case where a noalias argument can be equal to a global variable address, and while AliasAnalysis can get away with saying that these pointers don't alias, instsimplify cannot say that they are not equal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174122 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31An alloca can be equal to an argument. It can't *alias* an alloca, but it couldDan Gohman
be equal, since there's nothing preventing a caller from correctly predicting the stack location of an alloca. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174119 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Remove the AttrBuilder form of the Attribute::get creators.Bill Wendling
The AttrBuilder is for building a collection of attributes. The Attribute object holds only one attribute. So it's not really useful for the Attribute object to have a creator which takes an AttrBuilder. This has two fallouts: 1. The AttrBuilder no longer holds its internal attributes in a bit-mask form. 2. The attributes are now ordered alphabetically (hence why the tests have changed). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174110 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31R600: Fold clamp, neg, absTom Stellard
Patch by: Vincent Lejeune Reviewed-by: Tom Stellard <thomas.stellard@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174099 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Linker: correctly link in dbg.declareManman Ren
This is a re-worked version of r174048. Given source IR: call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !14), !dbg !15 we used to generate call void @llvm.dbg.declare(metadata !27, metadata !28), !dbg !29 !27 = metadata !{null} With this patch, we will correctly generate call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !27), !dbg !28 Looking up %argc.addr in ValueMap will return null, since %argc.addr is already correctly set up, we can use identity mapping. rdar://problem/13089880 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174093 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31When lowering memcpys to loads and stores, make sure we don't promote alignmentsLang Hames
past the natural stack alignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174085 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31[MC] bundle alignment: prevent padding instructions from crossing bundle ↵Derek Schuff
boundaries git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174067 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Add AArch64 as an experimental target.Tim Northover
This patch adds support for AArch64 (ARM's 64-bit architecture) to LLVM in the "experimental" category. Currently, it won't be built unless requested explicitly. This initial commit should have support for: + Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions (except the late addition CRC instructions). + CodeGen features required for C++03 and C99. + Compilation for the "small" memory model: code+static data < 4GB. + Absolute and position-independent code. + GNU-style (i.e. "__thread") TLS. + Debugging information. The principal omission, currently, is performance tuning. This patch excludes the NEON support also reviewed due to an outbreak of batshit insanity in our legal department. That will be committed soon bringing the changes to precisely what has been approved. Further reviews would be gratefully received. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Made the min-trip-count-switch test X86-specific to avoidPekka Jaaskelainen
breakage with builds without X86-support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174052 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Revert r173946. This breaks compilation of googletest with ClangAlexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174048 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Filecheckized 2x tests in SimplifyCFG and removed their date prefix to fit ↵Michael Gottesman
with current llvm style for test names. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174011 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Check and allow floating point registers to select the size of theEric Christopher
register for inline asm. This conforms to how gcc allows for effective casting of inputs into gprs (fprs is already handled). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174008 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Replace some more greps with FileChecks in testsEli Bendersky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174006 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Rewrite this test properly with a FileCheck instead of grepsEli Bendersky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173997 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-31Fix ConstantFold's folding of icmp instructions to recognize that,Dan Gohman
for example, a one-past-the-end pointer from one global variable may be equal to the base pointer of another global variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173995 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30PPC QPX requires a 32-byte aligned stackHal Finkel
On systems which support the QPX vector instructions, the stack must be 32-byte aligned. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173993 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Forgot the test case before.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173988 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Add definitions for the PPC a2q core marked as having QPX availableHal Finkel
This is the first commit of a large series which will add support for the QPX vector instruction set to the PowerPC backend. This instruction set is used on the IBM Blue Gene/Q supercomputers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173973 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Linker: correctly link in dbg.declareManman Ren
Given source IR: call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !14), !dbg !15 we used to generate call void @llvm.dbg.declare(metadata !27, metadata !28), !dbg !29 !27 = metadata !{null} With this patch, we will correctly generate call void @llvm.dbg.declare(metadata !{i32* %argc.addr}, metadata !27), !dbg !28 Looking up %argc.addr in ValueMap will return null, since %argc.addr is already correctly set up, we can use identity mapping. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173946 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Add a special ARM trap encoding for NaCl.Eli Bendersky
More details in this thread: http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20130128/163783.html Patch by JF Bastien git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173943 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30Add missing header and test cases for r173939.Logan Chien
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173941 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30InstCombine: canonicalize sext-and --> selectNadav Rotem
sext-not-and --> select. Patch by Muhammad Tauqir Ahmad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173901 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30build: add --with-python optionSaleem Abdulrasool
This adds a new --with-python option to allow configuration of the python binary for building. If not specified, $PATH will be searched for common python binary names (python, python2, python3). If specified, and the path is not executable, it will attempt to search $PATH. Signed-off-by: Saleem Abdulrasool <compnerd@compnerd.org> Reviewed-by: Eric Christopher <echristo@gmail.com>, Daniel Dunbar <daniel@zuster.org> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173890 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30This patch implements runtime ARM specificJack Carter
setting of ELF header e_flags. Contributer: Jack Carter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173885 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30This patch implements runtime Mips specificJack Carter
setting of ELF header e_flags. Contributer: Jack Carter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173884 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30This patch reworks how llvm targets set Jack Carter
and update ELF header e_flags. Currently gathering information such as symbol, section and data is done by collecting it in an MCAssembler object. From MCAssembler and MCAsmLayout objects ELFObjectWriter::WriteObject() forms and streams out the ELF object file. This patch just adds a few members to the MCAssember class to store and access the e_flag settings. It allows for runtime additions to the e_flag by assembler directives. The standalone assembler can get to MCAssembler from getParser().getStreamer().getAssembler(). This patch is the generic infrastructure and will be followed by patches for ARM and Mips for their target specific use. Contributer: Jack Carter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173882 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-30[mips] Test case for r173862.Akira Hatanaka
Patch by Sasa Stankovic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173863 91177308-0d34-0410-b5e6-96231b3b80d8
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