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* misched: Fix the DAG builder to handle an undef operand at ExitSU.Andrew Trick2012-12-012-1/+28
| | | | | | | Assertion failed: (VNI && "No value to read by operand") rdar://12790267. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169071 91177308-0d34-0410-b5e6-96231b3b80d8
* misched: Fix LiveInterval update to better handle DebugVal.Andrew Trick2012-12-012-1/+55
| | | | | | | Assertion failed: (itr != mi2iMap.end() && "Instruction not found in maps.") rdar://12777252. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169070 91177308-0d34-0410-b5e6-96231b3b80d8
* misched: fix RegionBegin when DebugValues get shuffled to the top.Andrew Trick2012-12-012-0/+87
| | | | | | | | assert (RemainingInstrs == 0 && "Instruction count mismatch!") rdar://12776937. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169069 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify REG_SEQUENCE lowering.Jakob Stoklund Olesen2012-12-012-190/+72
| | | | | | | | | | | The TwoAddressInstructionPass takes the machine code out of SSA form by expanding REG_SEQUENCE instructions into copies. It is no longer necessary to rewrite the registers used by a REG_SEQUENCE instruction because the new coalescer algorithm can do it now. REG_SEQUENCE is just converted to a sequence of sub-register copies now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169067 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the emacs mode to recognize fadd, fsum, fmul, fdiv, frem, fcmp, icmpMichael Ilseman2012-12-011-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169064 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some first skeleton work for the DWARF5 Fission proposal. EmitEric Christopher2012-11-303-8/+145
| | | | | | | | | part of the compile unit CU and start separating out information into the various sections that will be pulled out later. WIP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169061 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert COPY instructions into KILLs if they have implicit defs.Jakob Stoklund Olesen2012-11-301-3/+17
| | | | | | | | | | | MachineCopyPropagation doesn't understand super-register liveness well enough to be able to remove implicit defs of super-registers. This fixes a problem in ARM/2012-01-26-CopyPropKills.ll that is exposed by an future TwoAddressInstructionPass change. The KILL instructions are removed before the machine code is emitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169060 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for fission attributes/forms/operations -> string.Eric Christopher2012-11-301-0/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169056 91177308-0d34-0410-b5e6-96231b3b80d8
* Vim mode updated to recognize fast-math flagsMichael Ilseman2012-11-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169055 91177308-0d34-0410-b5e6-96231b3b80d8
* Removed redundancy in wordingMichael Ilseman2012-11-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169053 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up the documentation to have a common description area for fast-math ↵Michael Ilseman2012-11-301-115/+67
| | | | | | flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169052 91177308-0d34-0410-b5e6-96231b3b80d8
* Be more clear on what parts of code I own.Bill Wendling2012-11-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169050 91177308-0d34-0410-b5e6-96231b3b80d8
* reversed the logic of the log2 detection routine to reduce the number of ↵Pedro Artigas2012-11-301-25/+29
| | | | | | nested ifs git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169049 91177308-0d34-0410-b5e6-96231b3b80d8
* minor cleanupsNadav Rotem2012-11-301-8/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169048 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in APFloat.cpp: declare APFloat after fltSemantics itAlexey Samsonov2012-11-301-1/+3
| | | | | | | | | | | | uses. APFloat::convert() takes the pointer to the fltSemantics variable, which is later accessed it in ~APFloat() desctructor. That is, semantics must still be alive at the moment we delete APFloat. Found by experimental AddressSanitizer use-after-scope checker. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169047 91177308-0d34-0410-b5e6-96231b3b80d8
* Add me as LTO code owner.Bill Wendling2012-11-301-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169046 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace r168930 with a more reasonable patch.Bill Wendling2012-11-304-78/+13
| | | | | | | | | | | | The original patch removed a bunch of code that the SjLjEHPrepare pass placed into the entry block if all of the landing pads were removed during the CodeGenPrepare class. The more natural way of doing things is to run the CGP *before* we run the SjLjEHPrepare pass. Make it so! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169044 91177308-0d34-0410-b5e6-96231b3b80d8
* Addresses many style issues with prior checkin (r169025)Pedro Artigas2012-11-301-58/+44
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169043 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a -time-compilations=<N> option to llc.Jakob Stoklund Olesen2012-11-301-0/+16
| | | | | | | | This causes llc to repeat the module compilation N times, making it possible to get more accurate information from -time-passes when compiling small modules. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169040 91177308-0d34-0410-b5e6-96231b3b80d8
* Aggregate pass execution time report by pass ID instead of pass instance.Jakob Stoklund Olesen2012-11-301-3/+3
| | | | | | | This avoids unidentified duplicates in the pass execution time report when a pass runs more than once in the pass manager pipeline. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169039 91177308-0d34-0410-b5e6-96231b3b80d8
* lit: Add a simple test suite for checking test runner parallelism.Daniel Dunbar2012-11-301-0/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169038 91177308-0d34-0410-b5e6-96231b3b80d8
* test/CodeGen/PowerPC/vec_mul.ll: Add a triple. Thanks, Hal.Chad Rosier2012-11-301-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169026 91177308-0d34-0410-b5e6-96231b3b80d8
* Add fast math inst combine X*log2(Y*0.5)-->X*log2(Y)-XPedro Artigas2012-11-301-0/+77
| | | | | | | | reviewed by Michael Ilseman <milseman@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169025 91177308-0d34-0410-b5e6-96231b3b80d8
* Codegen failure for vmull with small vectorsSebastian Pop2012-11-302-13/+224
| | | | | | | | | | | | | | | | | | | | | | | | | Codegen was failing with an assertion because of unexpected vector operands when legalizing the selection DAG for a MUL instruction. The asserting code was legalizing multiplies for vectors of size 128 bits. It uses a custom lowering to try and detect cases where it can use a VMULL instruction instead of a VMOVL + VMUL. The code was looking for input operands to the MUL that had been sign or zero extended. If it found the extended operands it would drop the sign/zero extension and use the original vector size as input to a VMULL instruction. The code assumed that the original input vector was 64 bits so that after dropping the extension it would fit directly into a D register and could be used as an operand of a VMULL instruction. The input code that trigger the failure used a vector of <4 x i8> that was sign extended to <4 x i32>. It was not safe to drop the sign extension in this case because the original vector is only 32 bits wide. The fix is to insert a sign extension for the vector to reach the required 64 bit size. In this particular example, the vector would need to be sign extented to a <4 x i16>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169024 91177308-0d34-0410-b5e6-96231b3b80d8
* test/CodeGen/PowerPC/vec_mul.ll: Fix register operands.Chad Rosier2012-11-301-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169020 91177308-0d34-0410-b5e6-96231b3b80d8
* Use multiclass for the load instructions with MEMri operand.Jyotsna Verma2012-11-301-184/+66
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169018 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the use of LPPassManager. We can remove LPM because we dont need to ↵Nadav Rotem2012-11-301-10/+10
| | | | | | run any additional loop passes on the new vector loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169016 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up whitespace and add commentsEli Bendersky2012-11-301-7/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169002 91177308-0d34-0410-b5e6-96231b3b80d8
* Make FileCheck return 2 in case of an error as documented,Eli Bendersky2012-11-301-2/+2
| | | | | | | instead of 1 or true (?!) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169001 91177308-0d34-0410-b5e6-96231b3b80d8
* test/CodeGen/PowerPC: Add explicit -march=ppc32.NAKAMURA Takumi2012-11-302-2/+2
| | | | | | FIXME: Please add another RUN line if you would like to check also on ppc64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168999 91177308-0d34-0410-b5e6-96231b3b80d8
* This patch fixes the Altivec addend construction for the fused multiply-addAdhemerval Zanella2012-11-303-15/+40
| | | | | | | | | | | | | | | | instruction (vmaddfp) to conform with IEEE to ensure the sign of a zero result when resulting product is -0.0. The -0.0 vector addend to vmaddfp is generated by a creating a vector with full bits sets and then shifting each elements by 31-bits to the left, resulting in a vector of 0x80000000 (or -0.0 as float). The 'buildvec_canonicalize.ll' was adjusted to reflect this change and the 'vec_mul.ll' was complemented with the float vector multiplication test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168998 91177308-0d34-0410-b5e6-96231b3b80d8
* [msan] Tests for vector manipulation instructions.Evgeniy Stepanov2012-11-301-0/+37
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168997 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch LLVM_USE_RVALUE_REFERENCES to LLVM_HAS_RVALUE_REFERENCES.Chandler Carruth2012-11-3017-54/+54
| | | | | | | | | | | | | | Rationale: 1) This was the name in the comment block. ;] 2) It matches Clang's __has_feature naming convention. 3) It matches other compiler-feature-test conventions. Sorry for the noise. =] I've also switch the comment block to use a \brief tag and not duplicate the name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168996 91177308-0d34-0410-b5e6-96231b3b80d8
* [asan] simplify the code around doesNotReturn call. It now magically works. Kostya Serebryany2012-11-301-8/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168995 91177308-0d34-0410-b5e6-96231b3b80d8
* Separate out the tests for whether the compiler suports R-valueChandler Carruth2012-11-302-3/+15
| | | | | | | | | | | references from whether it supports an R-value reference *this. No version of GCC today supports the latter, which breaks GCC C++11 compiles of LLVM and Clang now. Also add doxygen comments clarifying what's going on here, and update the usage in Optional. I'll update the usages in Clang next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168993 91177308-0d34-0410-b5e6-96231b3b80d8
* More strict error checking in parseSpecifier + simplified code.Patrik Hagglund2012-11-302-82/+73
| | | | | | | | | | | | For example, don't allow empty strings to be passed to getInt. Move asserts inside parseSpecifier. (One day we may want to pass parse error messages to the user - from LLParser - instead of using asserts, but keep the code simple until then. There have been an attempt to do this. See r142288, which got reverted, and r142605.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168991 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix non-determinism introduced in r168970 and pointed out by Duncan.Chandler Carruth2012-11-301-5/+13
| | | | | | | | | | | | | We're iterating over a non-deterministically ordered container looking for two saturating flags. To do this correctly, we have to saturate both, and only stop looping if both saturate to their final value. Otherwise, which flag we see first changes the result. This is also a micro-optimization of the previous version as now we don't go into the (possibly expensive) test logic once the first violation of either constraint is detected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168989 91177308-0d34-0410-b5e6-96231b3b80d8
* Rearrange the comments, control flow, and variable names; noChandler Carruth2012-11-301-7/+14
| | | | | | | | | | | | | | functionality changed. Evan's commit r168970 moved the code that the primary comment in this function referred to to the other end of the function without moving the comment, and there has been a steady creep of "boolean" logic in it that is simpler if handled via early exit. That way each special case can have its own comments. I've also made the variable name a bit more explanatory than "AllFit". This is in preparation to fix the non-deterministic output of this function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168988 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the rest of the experimental fission sections to MC.Eric Christopher2012-11-302-1/+29
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168986 91177308-0d34-0410-b5e6-96231b3b80d8
* Use multiclass for the store instructions with MEMri operand.Jyotsna Verma2012-11-302-163/+64
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168983 91177308-0d34-0410-b5e6-96231b3b80d8
* Use multiclass for the load instructions with 'base + register offset'Jyotsna Verma2012-11-301-277/+97
| | | | | | | | addressing mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168976 91177308-0d34-0410-b5e6-96231b3b80d8
* Move library call simplification statistic to instcombineMeador Inge2012-11-302-3/+6
| | | | | | | | | The simplify-libcalls pass maintained a statistic to count the number of library calls that have been simplified. Now that library call simplification is being carried out in instcombine the statistic should be moved to there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168975 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the InstVisitor utility into VMCore where it belongs. It heavilyChandler Carruth2012-11-3012-15/+15
| | | | | | | | | | | | depends on the IR infrastructure, there is no sense in it being off in Support land. This is in preparation to start working to expand InstVisitor into more special-purpose visitors that are still generic and can be re-used across different passes. The expansion will go into the Analylis tree though as nothing in VMCore needs it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168972 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix logic to determine whether to turn a switch into a lookup table. WhenEvan Cheng2012-11-302-6/+39
| | | | | | | | | | the tables cannot fit in registers (i.e. bitmap), do not emit the table if it's using an illegal type. rdar://12779436 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168970 91177308-0d34-0410-b5e6-96231b3b80d8
* Modified dump() to provide a littlePreston Briggs2012-11-303-36/+34
| | | | | | | | | | more information for dependences between instructions that don't share a common loop. Updated the test results appropriately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168965 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new C++11 compatibility macro, LLVM_LVALUE_FUNCTION.Jordan Rose2012-11-302-2/+17
| | | | | | | | | | | | | | | | This expands to '&', and is intended to be used when an /optional/ rvalue override is available. Before: void foo() const { ... } After: void foo() const LLVM_LVALUE_FUNCTION { ... } void foo() && { ... } This is used to allow moving the contents of an Optional. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168963 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed the arm disassembly of invalid BFI instructions to not build a bad MCInstKevin Enderby2012-11-292-1/+18
| | | | | | | which would then cause an assert when printed. rdar://11437956 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168960 91177308-0d34-0410-b5e6-96231b3b80d8
* More comment.Eric Christopher2012-11-291-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168952 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comment for malloc being a library call now, rather than an instruction.Dan Gohman2012-11-291-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168946 91177308-0d34-0410-b5e6-96231b3b80d8
* copyFastMathFlags utility and test caseMichael Ilseman2012-11-293-0/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168943 91177308-0d34-0410-b5e6-96231b3b80d8
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