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2013-05-03RegionInfo: Do not crash if unreachable block is foundTobias Grosser
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181025 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03CMake: cxxabi.h is only available to C++ compilers, use the right check macro.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181019 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Remove comment that no target supports 128-bit IEEE floatsRichard Sandiford
The soon-to-be-committed SystemZ port uses 128-bit IEEE floats. MIPS64 GNU/Linux does too (albeit with unusual NaNs). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181016 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[SystemZ] Add MCJIT supportRichard Sandiford
Another step towards reinstating the SystemZ backend. I'll commit the configure changes separately (TARGET_HAS_JIT etc.), then commit a patch to enable the MCJIT tests on SystemZ. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181015 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[SystemZ] Support System Z as host architectureUlrich Weigand
The llvm::sys::AddSignalHandler function (as well as related routines) in lib/Support/Unix/Signals.inc currently registers a signal handler routine via "sigaction". When this handler is called due to a SIGSEGV, SIGILL or similar signal, it will show a stack backtrace, deactivate the handler, and then simply return to the operating system. The intent is that the OS will now retry execution at the same location as before, which ought to again trigger the same error condition and cause the same signal to be delivered again. Since the hander is now deactivated, the OS will take its default action (usually, terminate the program and possibly create a core dump). However, this method doesn't work reliably on System Z: With certain signals (namely SIGILL, SIGFPE, and SIGTRAP), the program counter stored by the kernel on the signal stack frame (which is the location where execution will resume) is not the instruction that triggered the fault, but then instruction *after it*. When the LLVM signal handler simply returns to the kernel, execution will then resume at *that* address, which will not trigger the problem again, but simply go on and execute potentially unrelated code leading to random errors afterwards. To fix this, the patch simply goes and re-raises the signal in question directly from the handler instead of returning from it. This is done only on System Z and only for those signals that have this particular problem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181010 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Add support for reading ARM ELF build attributes.Amara Emerson
Build attribute sections can now be read if they exist via ELFObjectFile, and the llvm-readobj tool has been extended with an option to dump this information if requested. Regression tests are also included which exercise these features. Also update the docs with a fixed ARM ABI link and a new link to the Addenda which provides the build attributes specification. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181009 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[SystemZ] Add ELF relocation supportRichard Sandiford
Another step towards reinstating the SystemZ backend. Tests will be included in the main backend patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181008 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[SystemZ] Add llvm::Triple::systemzRichard Sandiford
First step towards reinstating the SystemZ backend. Tests will be included in the main backend patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181007 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03X86: Add target description for btver2; make autodetection logic aware of AVX.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181005 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Added pocl and TCE blurbs to the ReleaseNotes.Pekka Jaaskelainen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181001 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Unbreaking the non-x86 build bots by protecting the AVX test code properly.Aaron Ballman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180992 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Correctly testing for AVX support in x86 based off code from Hosts.cpp.Aaron Ballman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180991 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[mips] Remove "Commutative" from property list of non-commutative intrinsics.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180988 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Fix missing include in Hexagon code for Release+AssertsReid Kleckner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180983 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03In MC asm parsing, account for the possibility of whitespace withinJohn McCall
the "identifier" parsed by the frontend callback by skipping forward until we've consumed a token that ends at the point dictated by the callback. In addition, inform the callback when it's parsing an unevaluated operand (e.g. mov eax, LENGTH A::x) as opposed to an evaluated one (e.g. mov eax, [A::x]). This commit depends on a clang commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180978 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02[mips] Handle reading, writing or copying of ccond field of DSP controlAkira Hatanaka
register. - Define pseudo instructions which store or load ccond field of the DSP control register. - Emit the pseudos in MipsSEInstrInfo::storeRegToStack and loadRegFromStack. - Expand the pseudos before callee-scan save. - Emit instructions RDDSP or WRDSP to copy between ccond field and GPRs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180969 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Remove redundant flag.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180967 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02reverting r180953Jyotsna Verma
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180964 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02R600: Signed literals are 64bits wideVincent Lejeune
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180960 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02R600: If previous bundle is dot4, PV valid chan is always XVincent Lejeune
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180959 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02R600: Add a test to check that use_kill is emittedVincent Lejeune
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180958 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02R600: Improve asmPrint of ALU clauseVincent Lejeune
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180957 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02R600: Prettier asmPrint of AluVincent Lejeune
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180956 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Hexagon: Add multiclass/encoding bits for the New-Value Jump instructions.Jyotsna Verma
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180953 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02[GV] Remove dead code which is really difficult to decipher.Shuxin Yang
Actually it took me couple of hours trying to make sense of them and only to find they are dead code. I guess the original author used "allSingleSucc" to indicate if there are any critial edge emanating from some blocks, and tried to perform code motion (actually speculation) in the presence of these critical edges; but later on he/she changed mind and decided to perform edge-splitting first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180951 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02We don't want FP elimination when doing an Apple-style build.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180949 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Replaced usages of size_type with size_t to be more consistent.Aaron Ballman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180947 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Hexagon - Add peephole optimizations for zero extends.Pranav Bhandarkar
* lib/Target/Hexagon/HexagonInstrInfo.td: Add patterns to combine a sequence of a pair of i32->i64 extensions followed by a "bitwise or" into COMBINE_rr. * lib/Target/Hexagon/HexagonPeephole.cpp: Copy propagate Rx in the instruction Rp = COMBINE_Ir_V4(0, Rx) to the uses of Rp:subreg_loreg. * test/CodeGen/Hexagon/union-1.ll: New test. * test/CodeGen/Hexagon/combine_ir.ll: Fix test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180946 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02[mips] Fix the head Mips16RegisterInfo.cpp commentRichard Sandiford
...aka a test commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180936 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02TBAA: remove !tbaa from testing cases if not used.Manman Ren
This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180935 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Provide an API to temporarily suppress DebugLocations from being attachedAdrian Prantl
to emitted instructions. Use this if you want an instruction to be counted towards the prologue or if there is no useful source location. rdar://problem/13442648 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180929 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Hexagon: Honor __builtin_expect by using branch probabilities.Jyotsna Verma
* lib/Target/Hexagon/HexagonInstrInfo.cpp (GetDotNewPredOp): Given a jump opcode return the right pred.new jump opcode with a taken vs not-taken hint based on branch probabilities provided by the target independent module. * lib/Target/Hexagon/HexagonVLIWPacketizer.cpp: Use the above function. * lib/Target/Hexagon/HexagonNewValueJump.cpp(getNewvalueJumpOpcode): Enhance existing function use branch probabilities like HexagonInstrInfo::GetDotNewPredOp but for New Value (GPR) Jumps. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180923 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02R600: Use new tablegen syntax for patternsTom Stellard
All but two patterns have been converted to the new syntax. The remaining two patterns will require COPY_TO_REGCLASS instructions, which the VLIW DAG Scheduler cannot handle. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180922 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02R600/SI: remove nonsense select patternTom Stellard
Fortunately this pattern never matched, otherwise we would have generated incorrect code. Signed-off-by: Christian K??nig <christian.koenig@amd.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180921 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Added table of contents declaration in CommandLine Library documentation.Tobias Grosser
Contributed-by: Dan Liew <daniel.liew@imperial.ac.uk> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180919 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-0280-col fixup.Michael Liao
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180915 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Avoid duplicating logic on frame register selecting when lowering eh_returnMichael Liao
No functionality change git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180914 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Avoid duplicating logic on frame register selecting when lowering frameaddrMichael Liao
No functionality change git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180912 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Rewrite X86 codegen regression test with FileCheckMichael Liao
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180910 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Add a test for the foldSelectICmpAndOr fix committed in r180779.David Majnemer
This tests a case where C1 and C2 were the same but X and Y were different widths. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180907 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02TiedTo flag can now be placed on implicit operands. isTwoAddrUse() should lookEvan Cheng
at all of the operands. Previously it was skipping over implicit operands which cause infinite looping when the two-address pass try to reschedule a two-address instruction below the kill of tied operand. I'm unable to come up with a reasonably sized test case. rdar://13747577 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180906 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01[mips] Rename class and functions. Simplify code.Akira Hatanaka
No functionality changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180897 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01This exposes more MCJIT options via the C API:Filip Pizlo
CodeModel: It's now possible to create an MCJIT instance with any CodeModel you like. Previously it was only possible to create an MCJIT that used CodeModel::JITDefault. EnableFastISel: It's now possible to turn on the fast instruction selector. The CodeModel option required some trickery. The problem is that previously, we were ensuring future binary compatibility in the MCJITCompilerOptions by mandating that the user bzero's the options struct and passes the sizeof() that he saw; the bindings then bzero the remaining bits. This works great but assumes that the bitwise zero equivalent of any field is a sensible default value. But this is not the case for LLVMCodeModel, or its internal equivalent, llvm::CodeModel::Model. In both of those, the default for a JIT is CodeModel::JITDefault (or LLVMCodeModelJITDefault), which is not bitwise zero. Hence this change introduces LLVMInitializeMCJITCompilerOptions(), which will initialize the user's options struct with defaults. The user will use this in the same way that they would have previously used memset() or bzero(). MCJITCAPITest.cpp illustrates the change, as does the comment in ExecutionEngine.h. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180893 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01Avoid generating tempfile(s) never usedMichael Liao
As DejaGNU is deprecated, it seems pipe-jam issue doesn't exist any more. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180892 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01Rename 'struct LLVMTargetMachine' to 'struct LLVMOpaqueTargetMachine'. Filip Pizlo
This avoids namespace collisions with llvm::LLVMTargetMachine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180891 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01Revert r180737. The companion patch was reverted, and this is not relevant ↵Bill Wendling
right now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180889 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01Hexagon: Use multiclass for Jump instructions.Jyotsna Verma
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180885 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01Hexagon: Clear isKill flag on the predicate register inJyotsna Verma
PredicateInstruction function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180884 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01Add support for other typeinfo encodings in the ExceptionDemo.Rafael Espindola
The old jit always uses DW_EH_PE_absptr, but MCJIT can use other encodings. This is in preparation for adding EH support to MCJIT, but not directly related, so I am committing it first. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180883 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-01Fix file header comment.Filip Pizlo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180882 91177308-0d34-0410-b5e6-96231b3b80d8
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