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* Add hooks to FoldingSetTrait to allow specializations to provideDan Gohman2010-08-161-35/+52
| | | | | | | | | implementations of equality comparison and hash computation. This can be used to optimize node lookup by avoiding creating lots of temporary ID values just for hashing and comparison purposes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111130 91177308-0d34-0410-b5e6-96231b3b80d8
* Reverse the order of GetNodeProfile's arguments, for consistencyDan Gohman2010-08-161-4/+4
| | | | | | | with FoldingSetTrait::Profile. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111127 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a 'normalize' method to the Triple class, which takes a mucked upDuncan Sands2010-08-121-63/+196
| | | | | | | | | | | | | | | | target triple and straightens it out. This does less than gcc's script config.sub, for example it turns i386-mingw32 into i386--mingw32 not i386-pc-mingw32, but it does a decent job of turning funky triples into something that the rest of the Triple class can understand. The plan is to use this to canonicalize triple's when they are first provided by users, and have the rest of LLVM only deal with canonical triples. Once this is done the special case workarounds in the Triple constructor can be removed, making the class more regular and easier to use. The comments and unittests for the Triple class are already adjusted in this patch appropriately for this brave new world of increased uniformity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110909 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up ConstantRange a bit:Nick Lewycky2010-08-111-78/+46
| | | | | | | | | | - remove ashr which never worked. - fix lshr and shl and add tests. - remove dead function "intersect1Wrapped". - add a new sub method to subtract ranges, with test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110861 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a couple of warnings.Eric Christopher2010-08-081-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110527 91177308-0d34-0410-b5e6-96231b3b80d8
* Roll back my last two commits, valgrind complains.Benjamin Kramer2010-08-071-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110518 91177308-0d34-0410-b5e6-96231b3b80d8
* Kill rarely used std::sort.Benjamin Kramer2010-08-071-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110516 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove layering violation.Owen Anderson2010-08-071-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110505 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an inverse() method to ConstantRange.Owen Anderson2010-08-071-0/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110504 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a convenience constructor.Owen Anderson2010-08-071-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110493 91177308-0d34-0410-b5e6-96231b3b80d8
* avoid undef behavior on minint, fixing PR7783.Chris Lattner2010-08-031-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110114 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix -Wmissing-field-initializers warnings.Daniel Dunbar2010-07-301-15/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109872 91177308-0d34-0410-b5e6-96231b3b80d8
* CrashRecovery: Use ThreadLocal::erase() instead of set(0).Daniel Dunbar2010-07-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109752 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure to include config.h, to pickup LLVM_ON_WIN32.Daniel Dunbar2010-07-291-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109721 91177308-0d34-0410-b5e6-96231b3b80d8
* CrashRecoveryContext: Add a simple POSIX implementation.Daniel Dunbar2010-07-291-1/+102
| | | | | | | | - This works, but won't handle crashes on stack overflow, or signals delivered to a thread other than the one that crashed. The latter is particular annoying on Darwin, because SIGABRT tends to go to the main thread. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109717 91177308-0d34-0410-b5e6-96231b3b80d8
* Unbreak my CMake build, say you'll compile for me again...Douglas Gregor2010-07-281-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109598 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Add CrashRecoveryContext helper object.Daniel Dunbar2010-07-281-0/+88
| | | | | | | | | - Designed as a simple wrapper to allow clients to attempt to catch crashes (memory errors, assertion violations, etc.) and do some kind of recovery. - Currently doesn't actually attempt to catch crashes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109586 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't pass StringRef by reference.Benjamin Kramer2010-07-144-11/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108366 91177308-0d34-0410-b5e6-96231b3b80d8
* add some triple for minix, patch by Kees van Reeuwijk from PR7582Chris Lattner2010-07-072-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107785 91177308-0d34-0410-b5e6-96231b3b80d8
* Rather than giving SmallPtrSetImpl a member field SmallArray which is magicallyDuncan Sands2010-06-301-3/+6
| | | | | | | | | | | | | | | | | replaced by a bigger array in SmallPtrSet (by overridding it), instead just use a pointer to the start of the storage, and have SmallPtrSet pass in the value to use. This has the disadvantage that SmallPtrSet becomes bigger by one pointer. It has the advantage that it no longer uses tricky C++ rules, and is clearly correct while I'm not sure the previous version was. This was inspired by g++-4.6 pointing out that SmallPtrSetImpl was writing off the end of SmallArray, which it was. Since SmallArray is replaced with a bigger array in SmallPtrSet, the write was still to valid memory. But it was writing off the end of the declared array type - sounds kind of dubious to me, like it sounded dubious to g++-4.6. Maybe g++-4.6 is wrong and this construct is perfectly valid and correctly compiled by all compilers, but I think it is better to avoid the whole can of worms by avoiding this construct. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107285 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix thinko.Eric Christopher2010-06-281-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107042 91177308-0d34-0410-b5e6-96231b3b80d8
* Pull in the libCrashReporterClient.a information with a warning comment.Eric Christopher2010-06-281-2/+9
| | | | | | | Remove library check and regenerate configure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107028 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite MemoryBuffer::getSTDIN to use read(2) and a SmallVector buffer.Benjamin Kramer2010-06-251-15/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106856 91177308-0d34-0410-b5e6-96231b3b80d8
* Bring back the empty vector workaround I removed in r106839. Looks like MSVC ↵Benjamin Kramer2010-06-251-1/+2
| | | | | | needs it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106841 91177308-0d34-0410-b5e6-96231b3b80d8
* Tweak MemoryBuffer to allocate the class itself, the name and possibly theBenjamin Kramer2010-06-251-70/+60
| | | | | | | | | | | buffer in the same chunk of memory. 2 less mallocs for every uninitialized MemoryBuffer and 1 less malloc for every MemoryBuffer pointing to a memory range translate into 20% less mallocs on clang -cc1 -Eonly Cocoa_h.m. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106839 91177308-0d34-0410-b5e6-96231b3b80d8
* Add overloads for getFile and getFileOrSTDIN which take a const char *Dan Gohman2010-06-241-3/+17
| | | | | | | | instead of a StringRef, avoiding the need to copy the string in the common case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106754 91177308-0d34-0410-b5e6-96231b3b80d8
* Look for and use a different darwin crash reporter library.Eric Christopher2010-06-221-1/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106576 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an explicit keyword.Dan Gohman2010-06-221-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106538 91177308-0d34-0410-b5e6-96231b3b80d8
* Use calloc instead of new/memset, it is more efficient when the set is very ↵Benjamin Kramer2010-06-191-6/+14
| | | | | | large. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106390 91177308-0d34-0410-b5e6-96231b3b80d8
* Give NamedRegionTimer an Enabled flag, allowing all its clients toDan Gohman2010-06-181-4/+6
| | | | | | | | | | | | | | | | | | | | | switch from this: if (TimePassesIsEnabled) { NamedRegionTimer T(Name, GroupName); do_something(); } else { do_something(); // duplicate the code, this time without a timer! } to this: { NamedRegionTimer T(Name, GroupName, TimePassesIsEnabled); do_something(); } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106285 91177308-0d34-0410-b5e6-96231b3b80d8
* Add the entire range of DW_OP_lit[0..31], DW_OP_reg[0..31], and Jason Molenda2010-06-171-212/+299
| | | | | | | | | | DW_OP_breg[0..31] to Dwarf.h. Add "DW_" prefix to the llvm::dwarf::*String methods which did not already have them in Dwarf.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106197 91177308-0d34-0410-b5e6-96231b3b80d8
* fpcmp: Fix bug where fpcmp wouldn't early exit when files obviously differ andDaniel Dunbar2010-06-151-9/+9
| | | | | | no tolerance is set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106033 91177308-0d34-0410-b5e6-96231b3b80d8
* fpcmp: Fix a possible infinite loop when comparing something like:Daniel Dunbar2010-06-151-0/+8
| | | | | | | | | 1..19 ok to 1..20 o k (yes, the odd space is necessary). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106032 91177308-0d34-0410-b5e6-96231b3b80d8
* Use const_iterator where appropriate.Daniel Dunbar2010-06-081-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105620 91177308-0d34-0410-b5e6-96231b3b80d8
* DeltaAlgorithm: Tweak split to split by first/second half instead of ↵Daniel Dunbar2010-06-081-2/+2
| | | | | | even/odd, since adjacent changes are more likely to be related. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105613 91177308-0d34-0410-b5e6-96231b3b80d8
* ADT: Add DAGDeltaAlgorithm, which is a DAG minimization algorithm built on ↵Daniel Dunbar2010-06-082-0/+358
| | | | | | | | top of the standard 'delta debugging' algorithm. - This can give substantial speedups in the delta process for inputs we can construct dependency information for. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105612 91177308-0d34-0410-b5e6-96231b3b80d8
* Use realloc instead of malloc+memcpy when growing a POD SmallVector. A smartBenjamin Kramer2010-06-081-9/+12
| | | | | | | | realloc implementation can try to expand the allocated memory block in-place, avoiding the copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105605 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor code simplification.Dan Gohman2010-05-281-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104959 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a redundant-return warning.Dan Gohman2010-05-281-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104958 91177308-0d34-0410-b5e6-96231b3b80d8
* Add basic error checking to MemoryBuffer::getSTDIN.Dan Gohman2010-05-271-2/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104855 91177308-0d34-0410-b5e6-96231b3b80d8
* Add StringRef::compare_numeric and use it to sort TableGen register records.Jakob Stoklund Olesen2010-05-261-0/+28
| | | | | | | This means that our Registers are now ordered R7, R8, R9, R10, R12, ... Not R1, R10, R11, R12, R2, R3, ... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104745 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix __crashreport_info__ declaration.Daniel Dunbar2010-05-201-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104300 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment explaining why this code uses Append mode.Dan Gohman2010-05-191-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104095 91177308-0d34-0410-b5e6-96231b3b80d8
* Usage of O_NONBLOCK in bjam is now confirmed as a bug and fixed upstream.Dan Gohman2010-05-181-4/+7
| | | | | | | Update the comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104021 91177308-0d34-0410-b5e6-96231b3b80d8
* improve portability to systems that don't have round, patch byChris Lattner2010-05-151-4/+3
| | | | | | | Evzen Muller! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103877 91177308-0d34-0410-b5e6-96231b3b80d8
* Add new configure option, --disable-timestamps, intended to turn off ↵Daniel Dunbar2010-05-101-0/+2
| | | | | | | | | anything which would mess up binary/object comparisons. Currently: - Disables 'Built on ...' in 'foo --version'. - Disables timestamps from being embedded into .dir files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103423 91177308-0d34-0410-b5e6-96231b3b80d8
* Run interrupt routines as part of report_fatal_error, since we are failingDaniel Dunbar2010-05-081-0/+7
| | | | | | ungracefully. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103334 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle the case where open(2) or close(2) is interrupted by a signal whenDan Gohman2010-05-061-11/+24
| | | | | | | | | automatic syscall restarting is disabled. Also, fix the build on systems which don't define EWOULDBLOCK. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103158 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle EWOULDBLOCK as EAGAIN. And add a comment explaining whyDan Gohman2010-05-061-3/+22
| | | | | | | | | | EAGAIN and EWOULDBLOCK are used here. Also, handle the case where a write call is interrupted after some data has already been written. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103153 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement rdar://7415680 - Twine integer support lacks greatnessChris Lattner2010-05-051-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Microoptimize Twine's with unsigned and int to not pin their value to the stack. This saves stack space in common cases and allows mem2reg in the caller. A simple example is: void foo(const Twine &); void bar(int x) { foo("xyz: " + Twine(x)); } Before: __Z3bari: subq $40, %rsp movl %edi, 36(%rsp) leaq L_.str3(%rip), %rax leaq 36(%rsp), %rcx leaq 8(%rsp), %rdi movq %rax, 8(%rsp) movq %rcx, 16(%rsp) movb $3, 24(%rsp) movb $7, 25(%rsp) callq __Z3fooRKN4llvm5TwineE addq $40, %rsp ret After: __Z3bari: subq $24, %rsp leaq L_.str3(%rip), %rax movq %rax, (%rsp) movslq %edi, %rax movq %rax, 8(%rsp) movb $3, 16(%rsp) movb $7, 17(%rsp) leaq (%rsp), %rdi callq __Z3fooRKN4llvm5TwineE addq $24, %rsp ret It saves 16 bytes of stack and one instruction in this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103107 91177308-0d34-0410-b5e6-96231b3b80d8
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