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2012-12-04Remove VirtRegMap::getRegAllocPref().Jakob Stoklund Olesen
Now that there can be multiple hint registers from targets, it doesn't make sense to have a function that returns 'the' preferred register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169190 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Use MRI::getSimpleHint() instead of getRegAllocPref() in remaining cases.Jakob Stoklund Olesen
Targets can provide multiple hints now, so getRegAllocPref() doesn't make sense any longer because it only returns one preferred register. Replace it with getSimpleHint() in the remaining heuristics. This function only git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169188 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Stack Alignment: move functions from header file MachineFrameInfo.h.Manman Ren
No functional change for this commit. The follow-up patch will add more stuff to these functions. rdar://12713765 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169186 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Add VirtRegMap::hasKnownPreference().Jakob Stoklund Olesen
Virtual registers with a known preferred register are prioritized by RAGreedy. This function makes the condition explicit without depending on getRegAllocPref(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169179 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03minor renaming, documentation and cleanups.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169175 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03[Support] Make FileOutputBuffer work on Windows.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169167 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03moves doInitialization and doFinalization to the Pass class and removes some ↵Pedro Artigas
unreachable code in MachineModuleInfo reviewed by Evan Cheng <evan.cheng@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169164 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Add a getMemorySize() function for DenseSet.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169163 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Add a new hook for providing register allocator hints more flexibly.Jakob Stoklund Olesen
The TargetRegisterInfo::getRegAllocationHints() function is going to replace the existing mechanisms for providing target-dependent hints to the register allocator: ResolveRegAllocHint() and getRawAllocationOrder(). The new hook is more flexible because it allows the target to provide multiple preferred candidate registers for each virtual register, and it is easier to use because targets are not required to return a reference to a constant array like getRawAllocationOrder(). An optional VirtRegMap argument can be used to provide target-dependent hints that depend on the provisional assignments of other virtual registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169154 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Eliminate redundant bitwise operations when using a llvm/ADT/PointerUnion.Argyrios Kyrtzidis
For comparison, with this code sample: PointerUnion<int *, char *> Data; PointerUnion<int *, char *> foo1() { Data = new int; return new int; } PointerUnion<int *, char *> foo2() { Data = new char; return new char; } Before this patch we would get: define i64 @_Z4foo1v() uwtable ssp { %1 = tail call noalias i8* @_Znwm(i64 4) %2 = ptrtoint i8* %1 to i64 %3 = load i64* getelementptr inbounds (%"class.llvm::PointerUnion"* @Data, i64 0, i32 0, i32 0), align 8 %4 = and i64 %3, 1 %.masked.i = and i64 %2, -3 %5 = or i64 %4, %.masked.i store i64 %5, i64* getelementptr inbounds (%"class.llvm::PointerUnion"* @Data, i64 0, i32 0, i32 0), align 8 %6 = tail call noalias i8* @_Znwm(i64 4) %7 = ptrtoint i8* %6 to i64 %8 = and i64 %7, -3 ret i64 %8 } define i64 @_Z4foo2v() uwtable ssp { %1 = tail call noalias i8* @_Znwm(i64 1) %2 = ptrtoint i8* %1 to i64 %3 = load i64* getelementptr inbounds (%"class.llvm::PointerUnion"* @Data, i64 0, i32 0, i32 0), align 8 %4 = and i64 %3, 1 %5 = or i64 %2, %4 %6 = or i64 %5, 2 store i64 %6, i64* getelementptr inbounds (%"class.llvm::PointerUnion"* @Data, i64 0, i32 0, i32 0), align 8 %7 = tail call noalias i8* @_Znwm(i64 1) %8 = ptrtoint i8* %7 to i64 %9 = or i64 %8, 2 ret i64 %9 } After the patch: define i64 @_Z4foo1v() uwtable ssp { %1 = tail call noalias i8* @_Znwm(i64 4) %2 = ptrtoint i8* %1 to i64 store i64 %2, i64* getelementptr inbounds (%"class.llvm::PointerUnion"* @Data, i64 0, i32 0, i32 0), align 8 %3 = tail call noalias i8* @_Znwm(i64 4) %4 = ptrtoint i8* %3 to i64 ret i64 %4 } declare noalias i8* @_Znwm(i64) define i64 @_Z4foo2v() uwtable ssp { %1 = tail call noalias i8* @_Znwm(i64 1) %2 = ptrtoint i8* %1 to i64 %3 = or i64 %2, 2 store i64 %3, i64* getelementptr inbounds (%"class.llvm::PointerUnion"* @Data, i64 0, i32 0, i32 0), align 8 %4 = tail call noalias i8* @_Znwm(i64 1) %5 = ptrtoint i8* %4 to i64 %6 = or i64 %5, 2 ret i64 %6 } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169147 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Add 'getInt64Field()' method to get the signed integer instead of unsigned.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169145 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03ASan: add blacklist file to ASan pass options. Clang patch for this will follow.Alexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169143 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Sort the #include lines for the include/... tree with the script.Chandler Carruth
AKA: Recompile *ALL* the source code! This one went much better. No manual edits here. I spot-checked for silliness and grep-checked for really broken edits and everything seemed good. It all still compiles. Yell if you see something that looks goofy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169133 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Use the new script to sort the includes of every file under lib.Chandler Carruth
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Remove bugzilla link.James Molloy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169091 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01misched: Fix RegisterPressureTracker handling of DebugVals.Andrew Trick
Assertion failed: (TopRPTracker.getPos() == RegionBegin && "bad initial Top tracker"). rdar://12790302. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169072 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Replace r168930 with a more reasonable patch.Bill Wendling
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
2012-11-30Switch LLVM_USE_RVALUE_REFERENCES to LLVM_HAS_RVALUE_REFERENCES.Chandler Carruth
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
2012-11-30Separate out the tests for whether the compiler suports R-valueChandler Carruth
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
2012-11-30More strict error checking in parseSpecifier + simplified code.Patrik Hagglund
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
2012-11-30Add the rest of the experimental fission sections to MC.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168986 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Move the InstVisitor utility into VMCore where it belongs. It heavilyChandler Carruth
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
2012-11-30Add a new C++11 compatibility macro, LLVM_LVALUE_FUNCTION.Jordan Rose
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
2012-11-29Update comment for malloc being a library call now, rather than an instruction.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168946 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29copyFastMathFlags utility and test caseMichael Ilseman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168943 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Whitespace.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168937 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Fix 80-column violations.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168936 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29rdar://12100355 (part 1)Shuxin Yang
This revision attempts to recognize following population-count pattern: while(a) { c++; ... ; a &= a - 1; ... }, where <c> and <a>could be used multiple times in the loop body. TODO: On X8664 and ARM, __buildin_ctpop() are not expanded to a efficent instruction sequence, which need to be improved in the following commits. Reviewed by Nadav, really appreciate! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168931 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Fix a memory leak in MachOObjectFile.Jim Grosbach
MachOObjectFile owns a MachOObj, but never frees it. Both MachOObjectFile and MachOObj want to own the MemoryBuffer, though, so we have to be careful and give them each one of their own. Thanks to Greg Clayton, Eric Christopher and Michael Spencer for helping figure out what's going wrong here. rdar://12561773 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168923 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Add options to AddressSanitizer passes to make them configurable by frontend.Alexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168910 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29One more step towards making doInitialization and doFinalization useful forPedro Artigas
start up and clean up module passes, now that ASAN and TSAN are fixed the tests pass git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168905 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Allow targets to prefer TypeSplitVector over TypePromoteInteger when ↵Justin Holewinski
computing the legalization method for vectors For some targets, it is desirable to prefer scalarizing <N x i1> instead of promoting to a larger legal type, such as <N x i32>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168882 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Initial commit of MemorySanitizer.Evgeniy Stepanov
Compiler pass only. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168866 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Use MCPhysReg for RegisterClassInfo allocation orders.Jakob Stoklund Olesen
This saves a bit of memory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168852 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Add an MCPhysReg typedef to replace naked uint16_t.Jakob Stoklund Olesen
Use this type for arrays of physical registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168850 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Instruction::isAssociative() returns true for fmul/fadd if they are tagged ↵Shuxin Yang
"unsafe" mode. Approved by: Eli and Michael. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168848 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Fast-math: Extend IRBuilder to have settable FastMathFlags to create ↵Michael Ilseman
instructions with Also extended IRBuilder's documentation to mention the convenience state for DefaultFPMathTag and FastMathFlags that can be set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168812 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Fast-math comments and convenience methodMichael Ilseman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168811 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Make the LiveRegMatrix analysis available to targets.Jakob Stoklund Olesen
No functional change, just moved header files. Targets can inject custom passes between register allocation and rewriting. This makes it possible to tweak the register allocation before rewriting, using the full global interference checking available from LiveRegMatrix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168806 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Add backreference matching capabilities to Support/Regex, withEli Bendersky
appropriate unit tests. This change in itself is not expected to affect any functionality at this point, but it will serve as a stepping stone to improve FileCheck's variable matching capabilities. Luckily, our regex implementation already supports backreferences, although a bit of hacking is required to enable it. It supports both Basic Regular Expressions (BREs) and Extended Regular Expressions (EREs), without supporting backrefs for EREs, following POSIX strictly in this respect. And EREs is what we actually use (rightly). This is contrary to many implementations (including the default on Linux) of POSIX regexes, that do allow backrefs in EREs. Adding backref support to our EREs is a very simple change in the regcomp parsing code. I fail to think of significant cases where it would clash with existing things, and can bring more versatility to the regexes we write. There's always the danger of a backref in a specially crafted regex causing exponential matching times, but since we mainly use them for testing purposes I don't think it's a big problem. [it can also be placed behind a flag specific to FileCheck, if needed]. For more details, see: * http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-November/055840.html * http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121126/156878.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168802 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28[asan] Split AddressSanitizer into two passes (FunctionPass, ModulePass), ↵Kostya Serebryany
LLVM part. This requires a clang part which will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168781 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Add back support for reading and parsing 'deplibs'.Bill Wendling
This is for backwards compatibility for pre-3.x bc files. The code reads the code, but does nothing with it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168779 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28misched: Analysis that partitions the DAG into subtrees.Andrew Trick
This is a simple, cheap infrastructure for analyzing the shape of a DAG. It recognizes uniform DAGs that take the shape of bottom-up subtrees, such as the included matrix multiplication example. This is useful for heuristics that balance register pressure with ILP. Two canonical expressions of the heuristic are implemented in scheduling modes: -misched-ilpmin and -misched-ilpmax. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168773 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28misched: rename ScheduleDAGILP to ScheduleDFS to prepare for other heuristics.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168772 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Add brief support for the fission .debug_info.dwo section forEric Christopher
ELF output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168764 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Rearrange ordering of sections.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168762 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Move and comment accessor routines.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168761 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Remove all references to TargetInstrInfoImpl.Jakob Stoklund Olesen
This class has been merged into its super-class TargetInstrInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168760 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Move the guts of TargetInstrInfoImpl into the TargetInstrInfo class.Jakob Stoklund Olesen
The *Impl class no longer serves a purpose now that the super-class implementation is in CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168759 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Fix comment formatting in RuntimeDyld.hAndrew Kaylor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168739 91177308-0d34-0410-b5e6-96231b3b80d8
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