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* Remove floats from live range splitting costs.Jakob Stoklund Olesen2013-07-162-26/+28
| | | | | | | | | | These floats all represented block frequencies anyway, so just use the BlockFrequency class directly. Some floating point computations remain in tryLocalSplit(). They are estimating spill weights which are still floats. llvm-svn: 186435
* Reapply r185393.Jakob Stoklund Olesen2013-07-162-82/+80
| | | | | | | | | | | | | | | | | | | | | | Original commit message: Remove floating point computations from SpillPlacement.cpp. Patch by Benjamin Kramer! Use the BlockFrequency class instead of floats in the Hopfield network computations. This rescales the node Bias field from a [-2;2] float range to two block frequencies BiasN and BiasP pulling in opposite directions. This construct has a more predictable behavior when block frequencies saturate. The per-node scaling factors are no longer necessary, assuming the block frequencies around a bundle are consistent. This patch can cause the register allocator to make different spilling decisions. The differences should be small. llvm-svn: 186434
* Revamp the formatting of C++11 braced init lists.Daniel Jasper2013-07-164-21/+34
| | | | | | | | | | | | | | The fundamental concept is: Format as if the braced init list was a function call (with parentheses replaced by braces). If there is no name/type before the opening brace (e.g. if the braced list is nested), assume a zero-length identifier just before the opening brace. This behavior is gated on a new style flag, which for now replaces the SpacesInBracedLists style flag. Activate this style flag for Google style to reflect recent style guide changes. llvm-svn: 186433
* [X86] Use min/max to optimze unsigend vector comparison on X86Juergen Ributzka2013-07-162-2/+148
| | | | | | | | | | | | | Use PMIN/PMAX for UGE/ULE vector comparions to reduce the number of required instructions. This trick also works for UGT/ULT, but there is no advantage in doing so. It wouldn't reduce the number of instructions and it would actually reduce performance. Reviewer: Ben radar:5972691 llvm-svn: 186432
* Make SpecialCaseList match full strings, as documented, using anchors.Peter Collingbourne2013-07-162-1/+17
| | | | | | Differential Revision: http://llvm-reviews.chandlerc.com/D1149 llvm-svn: 186431
* Bug 16599 part 2: Make std::pair's constructors and comparison operators ↵Marshall Clow2013-07-168-30/+135
| | | | | | (and make_pair) constexpr. llvm-svn: 186430
* Test commit to verify write access.Juergen Ributzka2013-07-161-0/+1
| | | | llvm-svn: 186429
* [WinLink] Add /LargeAddressAware command line option.Rui Ueyama2013-07-165-3/+30
| | | | llvm-svn: 186428
* Fix broken unittest for GnuLDDriver.Rui Ueyama2013-07-161-1/+2
| | | | llvm-svn: 186427
* [Support] Add a Unicode conversion wrapper from UTF16 to UTF8Reid Kleckner2013-07-164-2/+143
| | | | | | | | | | | This is to support parsing UTF16 response files in LLVM/lib/Option for lld and clang. Reviewers: hans Differential Revision: http://llvm-reviews.chandlerc.com/D1138 llvm-svn: 186426
* When the inliner merges allocas, it must keep the larger alignmentHal Finkel2013-07-163-2/+203
| | | | | | | | | | | | For safety, the inliner cannot decrease the allignment on an alloca when merging it with another. I've included two variants of the test case for this: one with DataLayout available, and one without. When DataLayout is not available, if only one of the allocas uses the default alignment (getAlignment() == 0), then they cannot be safely merged. llvm-svn: 186425
* tsan: extend suppressions format with ^ and $ symbolsDmitry Vyukov2013-07-162-5/+40
| | | | | | | not it's possible to write more precise suppressions, e.g. "^foo$" won't match "blafoobar" llvm-svn: 186424
* On error, close the temporary file descriptor.Rafael Espindola2013-07-162-1/+12
| | | | | | With this change llvm-ar can remove the temporary file on windows too. llvm-svn: 186423
* Add more types to ASTNodeKind. Refactor common instantiation code.Samuel Benzaquen2013-07-163-107/+107
| | | | | | | | | | | | | | Summary: Add support for CXXCtorInitializer and TemplateArgument types to ASTNodeKind. This change is to support more matchers from clang/ASTMatchers/ASTMatchers.h in the dynamic layer (clang/ASTMatchers/Dynamic). Reviewers: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1143 llvm-svn: 186422
* This patch removes unused parameter allProperties and converts remainingFariborz Jahanian2013-07-163-17/+9
| | | | | | | parameters in ArrayRef'ize Sema::ActOnAtEnd to ArrayRef. Patch by Robert Wilhelm. llvm-svn: 186421
* SLPVectorizer: Reduce the compile time of the consecutive store lookup.Nadav Rotem2013-07-161-5/+13
| | | | | | Process groups of stores in chunks of 16. llvm-svn: 186420
* Ensure a correct order between memory accesses.Hongbin Zheng2013-07-167-11/+406
| | | | | | | | Ensure that the scalar write access corresponds to the result of a load instruction appears after the generic read access corresponds to the load instruction. llvm-svn: 186419
* IndependentBlock: Add option to disable scalar to array rewriting.Hongbin Zheng2013-07-165-1/+69
| | | | llvm-svn: 186418
* Make sure the each instruction is mapped to one memory access.Hongbin Zheng2013-07-161-0/+2
| | | | llvm-svn: 186417
* Fix and re-enable R600 vload/vstore assemblyAaron Watry2013-07-165-56/+233
| | | | | | | | | | | | | | | | | | | The assembly optimizations were making unsafe assumptions about which address spaces had which identifiers. Also, fix vload/vstore with 64-bit pointers. This was broken previously on Radeon SI. This version still only has assembly versions of int/uint 2/4/8/16 for global loads and stores on R600, but it does it in a way that would be very easily extended to private/local/constant and could also be handled easily on other architectures. v2: 1) Leave v[load|store]_impl.ll in generic/lib 2) Remove vload_if.ll and vstore_if.ll interfaces 3) Fix address+offset calculations 3) Remove offset from assembly arg list llvm-svn: 186416
* libclc: vload/vstore disable assembly and fix offset calculationAaron Watry2013-07-165-245/+20
| | | | | | | | | | | This commit gets us back to pure CLC and fixes offset calculations. The next commit will re-enable the assembly implementation for R600, fix bugs related to 64-bit address spaces, and also fix the incorrect assumption that address space identifiers are the same in all architectures. llvm-svn: 186415
* Create files with mode 666. This matches the behavior of other unix tools.Rafael Espindola2013-07-162-1/+14
| | | | llvm-svn: 186414
* [Support] Fix some warnings when self-hosting clang on WindowsReid Kleckner2013-07-162-2/+5
| | | | llvm-svn: 186413
* Remove unnecessary assignment.Manuel Klimek2013-07-161-1/+0
| | | | llvm-svn: 186412
* Fixes another hard to test problem with iterator invalidation.Manuel Klimek2013-07-161-60/+69
| | | | | | | | | | As every match call can recursively call back into the memoized match via a nested traversal matcher (for example: stmt(hasAncestor(stmt(hasDescendant(stmt(hasDescendant(stmt()))))))), and every memoization step might clear the cache, we must not store iterators into the result cache when calling match on a submatcher. llvm-svn: 186411
* [ASan] Bump min supported Mac OS X version to 10.6 - makefile buildAlexey Samsonov2013-07-161-2/+2
| | | | llvm-svn: 186410
* [APFloat] PR16573: Avoid losing mantissa bits in ppc_fp128 to double truncationUlrich Weigand2013-07-162-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When truncating to a format with fewer mantissa bits, APFloat::convert will perform a right shift of the mantissa by the difference of the precision of the two formats. Usually, this will result in just the mantissa bits needed for the target format. One special situation is if the input number is denormal. In this case, the right shift may discard significant bits. This is usually not a problem, since truncating a denormal usually results in zero (underflow) after normalization anyway, since the result format's exponent range is usually smaller than the target format's. However, there is one case where the latter property does not hold: when truncating from ppc_fp128 to double. In particular, truncating a ppc_fp128 whose first double of the pair is denormal should result in just that first double, not zero. The current code however performs an excessive right shift, resulting in lost result bits. This is then caught in the APFloat::normalize call performed by APFloat::convert and causes an assertion failure. This patch checks for the scenario of truncating a denormal, and attempts to (possibly partially) replace the initial mantissa right shift by decrementing the exponent, if doing so will still result in a valid *target format* exponent. Index: test/CodeGen/PowerPC/pr16573.ll =================================================================== --- test/CodeGen/PowerPC/pr16573.ll (revision 0) +++ test/CodeGen/PowerPC/pr16573.ll (revision 0) @@ -0,0 +1,11 @@ +; RUN: llc < %s | FileCheck %s + +target triple = "powerpc64-unknown-linux-gnu" + +define double @test() { + %1 = fptrunc ppc_fp128 0xM818F2887B9295809800000000032D000 to double + ret double %1 +} + +; CHECK: .quad -9111018957755033591 + Index: lib/Support/APFloat.cpp =================================================================== --- lib/Support/APFloat.cpp (revision 185817) +++ lib/Support/APFloat.cpp (working copy) @@ -1956,6 +1956,23 @@ X86SpecialNan = true; } + // If this is a truncation of a denormal number, and the target semantics + // has larger exponent range than the source semantics (this can happen + // when truncating from PowerPC double-double to double format), the + // right shift could lose result mantissa bits. Adjust exponent instead + // of performing excessive shift. + if (shift < 0 && isFiniteNonZero()) { + int exponentChange = significandMSB() + 1 - fromSemantics.precision; + if (exponent + exponentChange < toSemantics.minExponent) + exponentChange = toSemantics.minExponent - exponent; + if (exponentChange < shift) + exponentChange = shift; + if (exponentChange < 0) { + shift -= exponentChange; + exponent += exponentChange; + } + } + // If this is a truncation, perform the shift before we narrow the storage. if (shift < 0 && (isFiniteNonZero() || category==fcNaN)) lostFraction = shiftRight(significandParts(), oldPartCount, -shift); llvm-svn: 186409
* [Sanitizer] move strcpy and strncpy to common interceptorsAlexey Samsonov2013-07-165-66/+59
| | | | llvm-svn: 186408
* [XCore] Fix printing of inline asm operands.Richard Osborne2013-07-162-11/+39
| | | | | | | Previously an asm operand with no operand modifier would give the error "invalid operand in inline asm". llvm-svn: 186407
* ARM: allow printing of ARM atomic DAG nodes.Tim Northover2013-07-161-0/+13
| | | | | | | | We'd forgotten to provide string representations for the special ARMISD atomic nodes; this adds them in. No effect on CodeGen, just makes the output of "-view-whatever-dags" slightly more readable. llvm-svn: 186406
* [SystemZ] Use ROSBG and non-zero form of RISBG for OR nodesRichard Sandiford2013-07-163-1/+289
| | | | llvm-svn: 186405
* [ASan] Bump min supported Mac OS X version to 10.6Alexey Samsonov2013-07-163-3/+6
| | | | llvm-svn: 186404
* Fixing a buildbot failure:unused function.Vladimir Medic2013-07-161-14/+0
| | | | llvm-svn: 186403
* clang-format: Improve detection of function types.Daniel Jasper2013-07-162-1/+5
| | | | | | | | | | This fixes an incorrect detection that led to a formatting error. Before: some_var = function (*some_pointer_var)[0]; After: some_var = function(*some_pointer_var)[0]; llvm-svn: 186402
* [SystemZ] Add MC support for R[NOX]SBGRichard Sandiford2013-07-164-0/+179
| | | | | | CodeGen support will come later. llvm-svn: 186401
* tsan: support sigsuspend() callDmitry Vyukov2013-07-164-0/+46
| | | | | | Intercepting it makes it process pending signal before return. llvm-svn: 186400
* [SystemZ] Use RISBG for (shift (and ...))Richard Sandiford2013-07-162-98/+321
| | | | | | | Another patch in the series to make more use of R.SBG. This one extends r186072 and r186073 to handle cases where the AND is inside the shift. llvm-svn: 186399
* Fix test on release builds.Tim Northover2013-07-161-2/+1
| | | | | | | | Unfortunately I don't think there's a good way to validate branch targets on release builds. Fortunately it's a minor part of this test (and based on generic code) so I don't mind dropping it. llvm-svn: 186398
* This patch represents Mips utilization of r186388 code that alows asm ↵Vladimir Medic2013-07-164-270/+242
| | | | | | matcher to emit mnemonics contain '.' characters. This makes asm parser code simpler and more efficient. llvm-svn: 186397
* PPCJITInfo.cpp: Tweak r186252 with s/__ppc/__powerpc/ to work on ↵NAKAMURA Takumi2013-07-161-2/+2
| | | | | | | | powerpc-linux Fedora 12. g++ (GCC) 4.4.4 20100630 (Red Hat 4.4.4-10) llvm-svn: 186396
* ARM: implement low-level intrinsics for the atomic exclusive operations.Tim Northover2013-07-169-21/+398
| | | | | | | | | | | | This adds three overloaded intrinsics to Clang: T __builtin_arm_ldrex(const volatile T *addr) int __builtin_arm_strex(T val, volatile T *addr) void __builtin_arm_clrex() The intent is that these do what users would expect when given most sensible types. Currently, "sensible" translates to ints, floats and pointers. llvm-svn: 186394
* [ASan] Use less shadow on Win 32-bitTimur Iskhodzhanov2013-07-164-19/+34
| | | | llvm-svn: 186393
* ARM: implement ldrex, strex and clrex intrinsicsTim Northover2013-07-168-53/+277
| | | | | | | Intrinsics already existed for the 64-bit variants, so these support operations of size at most 32-bits. llvm-svn: 186392
* ARM EABI divmod supportRenato Golin2013-07-164-2/+289
| | | | | | | | | | | | This patch enables calls to __aeabi_idivmod when in EABI mode, by using the remainder value returned on registers (R1), enabled by the ARM triple "none-eabi". Note that Darwin and GNUEABI triples will continue lowering on GNU style, that is, using the stack for the remainder. Still need to add SREM/UREM support fix for 64-bit lowering. llvm-svn: 186390
* [ASan] Cache the OSX version to avoid calling sysctl() on every ↵Alexander Potapenko2013-07-162-4/+20
| | | | | | GetMacosVersion() call. llvm-svn: 186389
* This patch allows targets to define weather the instruction mnemonics in asm ↵Vladimir Medic2013-07-162-4/+10
| | | | | | matcher tables will contain '.' character. llvm-svn: 186388
* llvm/test/Object/directory.ll: Mark it as XFAIL:cygwin. Directories can be ↵NAKAMURA Takumi2013-07-161-3/+3
| | | | | | opened on cygwin. llvm-svn: 186387
* [ASan] Add support for OS X Mavericks to GetMacosVersion.Alexander Potapenko2013-07-162-1/+3
| | | | llvm-svn: 186386
* Limit number of bits in size representation so that bit size fit 64 bits.Serge Pavlov2013-07-163-8/+14
| | | | | | This fixes PR8256 and some others. llvm-svn: 186385
* [PECOFF][Writer] Replace magic numbers with sizeof().Rui Ueyama2013-07-161-7/+13
| | | | | | | | | | | | This is a follow up patch for r186336. Reviewers: LegalizeAdulthood CC: silvas, llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1144 llvm-svn: 186384
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