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* Add vmfunc instruction to X86 assembler and disassembler.Craig Topper2012-02-194-0/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150899 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't skip debug instructions when looking for the insertion point ofRafael Espindola2012-02-181-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | the cast. If we do, we can end up with inst1 --------------- < Insertion point dbg inst new inst instead of the desired inst1 new inst --------------- < Insertion point dbg inst Another option would be for InsertNoopCastOfTo (or its callers) to move the insertion point and we would end up with inst1 dbg inst new inst --------------- < Insertion point but that complicates the callers. This fixes PR12018 (and firefox's build). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150884 91177308-0d34-0410-b5e6-96231b3b80d8
* Add X86 assembler and disassembler support for AMD SVM instructions. ↵Craig Topper2012-02-184-1/+98
| | | | | | Original patch by Kay Tiong Khoo. Few tweaks by me for code density and to reduce replication. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150873 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a rather nasty regression from r150690: LHS != RHS does not imply ↵Eli Friedman2012-02-181-0/+10
| | | | | | LHS->stripPointerCasts() != RHS->stripPointerCasts(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150863 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for the previous commit.Eric Christopher2012-02-181-1/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150852 91177308-0d34-0410-b5e6-96231b3b80d8
* Calls and invokes with the new clang.arc.no_objc_arc_exceptionsDan Gohman2012-02-171-0/+122
| | | | | | | | | metadata may still unwind, but only in ways that the ARC optimizer doesn't need to consider. This permits more aggressive optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150829 91177308-0d34-0410-b5e6-96231b3b80d8
* It turns out that putting an 8-byte symbol in a 4-byte section makes Solaris ↵David Chisnall2012-02-171-0/+28
| | | | | | | | | | | | ld sulk. GNU ld is perfectly happy with it, which is worrying for a whole other set of reasons... Thanks to Anton, Duncan and Rafael for helping me track this down. Pointy hat to Rafael for introducing the bug in the first place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150811 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove question.Nick Lewycky2012-02-171-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150809 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for invariant.start inside the static constructor evaluator. This isNick Lewycky2012-02-171-0/+34
| | | | | | | | | | useful to represent a variable that is const in the source but can't be constant in the IR because of a non-trivial constructor. If globalopt evaluates the constructor, and there was an invariant.start with no matching invariant.end possible, it will mark the global constant afterwards. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150794 91177308-0d34-0410-b5e6-96231b3b80d8
* [fast-isel] Add support for returning non-legal types with no sign- or zero-Chad Rosier2012-02-171-0/+9
| | | | | | | | entend flag. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150774 91177308-0d34-0410-b5e6-96231b3b80d8
* Use –mcpu=generic, so that the test will not fail when run on an Intel AtomBill Wendling2012-02-161-1/+1
| | | | | | | | | processor, due to the Atom scheduler producing an instruction sequence that is different from that which is expected. Patch by Michael Spencer! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150736 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable machine copy propagation for now. It's known to be buggy (PR11940) ↵Benjamin Kramer2012-02-161-1/+1
| | | | | | and introduces subtle miscompiles in many places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150703 91177308-0d34-0410-b5e6-96231b3b80d8
* InstSimplify: Ignore pointer casts when constant folding compares between ↵Benjamin Kramer2012-02-161-0/+20
| | | | | | pointers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150690 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace all instances of dg.exp file with lit.local.cfg, since all tests are ↵Eli Bendersky2012-02-16235-695/+549
| | | | | | | | | | | run with LIT now and now Dejagnu. dg.exp is no longer needed. Patch reviewed by Daniel Dunbar. It will be followed by additional cleanup patches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150664 91177308-0d34-0410-b5e6-96231b3b80d8
* loop-rotate shouldn't hoist alloca instructions out of a loop. Patch by ↵Eli Friedman2012-02-161-0/+33
| | | | | | Patrik Hägglund, with slightly modified test. Issue reported by Patrik Hägglund on llvmdev. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150642 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove extraneous tests.Bill Wendling2012-02-152-119/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150636 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for generating Objective-C metadata from module flags.Bill Wendling2012-02-151-0/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150635 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a test for the Objective-C garbage collection metadata stuff.Bill Wendling2012-02-152-0/+119
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150626 91177308-0d34-0410-b5e6-96231b3b80d8
* For ELF, also call fixSymbolsInTLSFixups() on expressions passed to ↵David Meyer2012-02-152-2/+102
| | | | | | EmitValue (literal values). Previously only called on expressions in instructions. New test cases added to tls.s, tls-i386.s. Resolves PR11981. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150582 91177308-0d34-0410-b5e6-96231b3b80d8
* Stop custom lowering forr x86 DEC64m from happening if the load in the ↵Pete Cooper2012-02-151-0/+14
| | | | | | lowered sequence has more than 1 user git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150537 91177308-0d34-0410-b5e6-96231b3b80d8
* Tighten physical register invariants: Allocatable physical registers canLang Hames2012-02-141-1/+1
| | | | | | | only be live in to a block if it is the function entry point or a landing pad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150494 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR12000. Some vector operations may use scalar operands with typesNadav Rotem2012-02-141-0/+13
| | | | | | | | | | | that are greater than the vector element type. For example BUILD_VECTOR of type <1 x i1> with a constant i8 operand. This patch fixes the assertion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150477 91177308-0d34-0410-b5e6-96231b3b80d8
* Change error tests to coincide with message changes.Bill Wendling2012-02-143-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150467 91177308-0d34-0410-b5e6-96231b3b80d8
* [asan] fix asan-vs-gvn.ll test (it did not actually check much before this ↵Kostya Serebryany2012-02-141-4/+17
| | | | | | change) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150441 91177308-0d34-0410-b5e6-96231b3b80d8
* Add simplifyLoopLatch to LoopRotate pass.Andrew Trick2012-02-141-0/+39
| | | | | | This folds a simple loop tail into a loop latch. It covers the common (in fortran) case of postincrement loops. It's a "free" way to expose this type of loop to downstream loop optimizations that bail out on non-canonical loops (getLoopLatch is a heavily used check). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150439 91177308-0d34-0410-b5e6-96231b3b80d8
* Check against umin while converting fcmp into an icmp.Devang Patel2012-02-131-0/+35
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150425 91177308-0d34-0410-b5e6-96231b3b80d8
* Just like in regular escape analysis, loads and stores throughDan Gohman2012-02-131-0/+51
| | | | | | | | (but not of) a block pointer do not cause the block pointer to escape. This fixes rdar://10803830. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150424 91177308-0d34-0410-b5e6-96231b3b80d8
* ThreadSanitizer, a race detector. First LLVM commit.Kostya Serebryany2012-02-132-0/+25
| | | | | | | | Clang patch (flags) will follow shortly. The run-time library will also follow, but not immediately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150423 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in DAGCombine for the optimization of BUILD_VECTOR. We cant ↵Nadav Rotem2012-02-131-0/+16
| | | | | | generate a shuffle node from two vectors of different types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150383 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert accidental commit of a pruned testcase from r150360.Craig Topper2012-02-131-0/+58
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150361 91177308-0d34-0410-b5e6-96231b3b80d8
* Update CanXFormVExtractWithShuffleIntoLoad to ensure bitcasts of loads only ↵Craig Topper2012-02-131-58/+0
| | | | | | have one use. Matches DAGCombiner and prevents vector_shuffles from reaching isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150360 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed bug when custom lowering DEC64m on x86.Pete Cooper2012-02-131-0/+24
| | | | | | | | | | If the DEC node had more than one user, it was doing this lowering but leaving the original DEC node around and so decrementing twice. Fixes PR11964. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150356 91177308-0d34-0410-b5e6-96231b3b80d8
* This patch addresses the problem of poor code generation for the zextNadav Rotem2012-02-122-1/+14
| | | | | | | | | | | | | | | | | | | | | v8i8 -> v8i32 on AVX machines. The codegen often scalarizes ANY_EXTEND nodes. The DAGCombiner has two optimizations that can mitigate the problem. First, if all of the operands of a BUILD_VECTOR node are extracted from an ZEXT/ANYEXT nodes, then it is possible to create a new simplified BUILD_VECTOR which uses UNDEFS/ZERO values to eliminate the scalar ZEXT/ANYEXT nodes. Second, another dag combine optimization lowers BUILD_VECTOR into a shuffle vector instruction. In the case of zext v8i8->v8i32 on AVX, a value in an XMM register is to be shuffled into a wide YMM register. This patch modifes the second optimization and allows the creation of shuffle vectors even when the newly generated vector and the original vector from which we extract the values are of different types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150340 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for implicit TLS model used with MS VC runtime.Anton Korobeynikov2012-02-1110-52/+134
| | | | | | | Patch by Kai Nacke! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150307 91177308-0d34-0410-b5e6-96231b3b80d8
* [WIP] Initial code for module flags.Bill Wendling2012-02-1112-0/+110
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Module flags are key-value pairs associated with the module. They include a 'behavior' value, indicating how module flags react when mergine two files. Normally, it's just the union of the two module flags. But if two module flags have the same key, then the resulting flags are dictated by the behaviors. Allowable behaviors are: Error Emits an error if two values disagree. Warning Emits a warning if two values disagree. Require Emits an error when the specified value is not present or doesn't have the specified value. It is an error for two (or more) llvm.module.flags with the same ID to have the Require behavior but different values. There may be multiple Require flags per ID. Override Uses the specified value if the two values disagree. It is an error for two (or more) llvm.module.flags with the same ID to have the Override behavior but different values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150300 91177308-0d34-0410-b5e6-96231b3b80d8
* Update BBVectorize to use aliasesUnknownInst.Hal Finkel2012-02-101-0/+244
| | | | | | | | This allows BBVectorize to check the "unknown instruction" list in the alias sets. This is important to prevent instruction fusing from reordering function calls. Resolves PR11920. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150250 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR11948: the result type of an icmp may be a vector of boolean -Duncan Sands2012-02-101-0/+7
| | | | | | | don't assume it is a boolean. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150247 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert commit 149912 (lattner) and add a testcase that shows the problem (whichDuncan Sands2012-02-101-0/+9
| | | | | | | | | | | is that patterns no longer match for vectors of booleans, because you only get ConstantDataVector when the vector element type is i8, i16, etc, not when it is i1). Original commit message: Remove some dead code and tidy things up now that vectors use ConstantDataVector instead of always using ConstantVector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150246 91177308-0d34-0410-b5e6-96231b3b80d8
* RegAlloc superpass: includes phi elimination, coalescing, and scheduling.Andrew Trick2012-02-106-6/+6
| | | | | | | | | | | | | | | | Creates a configurable regalloc pipeline. Ensure specific llc options do what they say and nothing more: -reglloc=... has no effect other than selecting the allocator pass itself. This patch introduces a new umbrella flag, "-optimize-regalloc", to enable/disable the optimizing regalloc "superpass". This allows for example testing coalscing and scheduling under -O0 or vice-versa. When a CodeGen pass requires the MachineFunction to have a particular property, we need to explicitly define that property so it can be directly queried rather than naming a specific Pass. For example, to check for SSA, use MRI->isSSA, not addRequired<PHIElimination>. CodeGen transformation passes are never "required" as an analysis ProcessImplicitDefs does not require LiveVariables. We have a plan to massively simplify some of the early passes within the regalloc superpass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150226 91177308-0d34-0410-b5e6-96231b3b80d8
* GlobalOpt: Be more aggressive about elminating side-effect free static dtors.Benjamin Kramer2012-02-091-2/+4
| | | | | | | | | GlobalOpt runs early in the pipeline (before inlining) and complex class hierarchies often introduce bitcasts or GEPs which weren't optimized away. Teach it to ignore side-effect free instructions instead of depending on other passes to remove them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150174 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach the MC and disassembler about SoftFail, and hook it up to ↵James Molloy2012-02-091-0/+5
| | | | | | UNPREDICTABLE on ARM. Wire this to tBLX in order to provide test coverage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150169 91177308-0d34-0410-b5e6-96231b3b80d8
* test/CodeGen/X86/atom-lea-sp.ll: Add explicit -mtriple=i686-linux.NAKAMURA Takumi2012-02-091-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150151 91177308-0d34-0410-b5e6-96231b3b80d8
* Commit Andy Zhang's test for the lea patch.Evan Cheng2012-02-081-0/+48
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150107 91177308-0d34-0410-b5e6-96231b3b80d8
* [asan] unpoison the stack before every noreturn call. Fixes asan issue 37. ↵Kostya Serebryany2012-02-081-0/+17
| | | | | | llvm part git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150102 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed a bug in printing "cmp" pseudo ops.Elena Demikhovsky2012-02-081-0/+68
| | | | | | | | | | | | | | | | | | | | | | | | > This IR code > %res = call <8 x float> @llvm.x86.avx.cmp.ps.256(<8 x float> %a0, <8 x float> %a1, i8 14) > fails with assertion: > > llc: X86ATTInstPrinter.cpp:62: void llvm::X86ATTInstPrinter::printSSECC(const llvm::MCInst*, unsigned int, llvm::raw_ostream&): Assertion `0 && "Invalid ssecc argument!"' failed. > 0 llc 0x0000000001355803 > 1 llc 0x0000000001355dc9 > 2 libpthread.so.0 0x00007f79a30575d0 > 3 libc.so.6 0x00007f79a23a1945 gsignal + 53 > 4 libc.so.6 0x00007f79a23a2f21 abort + 385 > 5 libc.so.6 0x00007f79a239a810 __assert_fail + 240 > 6 llc 0x00000000011858d5 llvm::X86ATTInstPrinter::printSSECC(llvm::MCInst const*, unsigned int, llvm::raw_ostream&) + 119 I added the full testing for all possible pseudo-ops of cmp. I extended X86AsmPrinter.cpp and X86IntelInstPrinter.cpp. You'l also see lines alignments (unrelated to this fix) in X86IselLowering.cpp from my previous check-in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150068 91177308-0d34-0410-b5e6-96231b3b80d8
* [fast-isel] Add support for SUBs with non-legal types.Chad Rosier2012-02-081-0/+38
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150047 91177308-0d34-0410-b5e6-96231b3b80d8
* Add comment to test case.Chad Rosier2012-02-081-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150046 91177308-0d34-0410-b5e6-96231b3b80d8
* [fast-isel] Add support for ORs with non-legal types.Chad Rosier2012-02-081-0/+36
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150045 91177308-0d34-0410-b5e6-96231b3b80d8
* [fast-isel] Add support for indirect branches.Chad Rosier2012-02-071-0/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150014 91177308-0d34-0410-b5e6-96231b3b80d8
* Add instruction selection for 256-bit VPSHUFD and 128-bit VPERMILPS/VPERMILPD.Craig Topper2012-02-073-9/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149968 91177308-0d34-0410-b5e6-96231b3b80d8
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