Commit Graph

118 Commits

Author SHA1 Message Date
fade2f72b8 [TableGen] Change a couple methods to return an ArrayRef instead of a const std::vector reference. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241430 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-06 06:23:01 +00:00
1405564987 [TableGen] Restore the use of the TheInit field in Record to cache the Record's DefInit. I broke this when I fixed memory leaks recently. Remove the DenseMap that mapped Record's to DefInit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240524 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-24 06:19:19 +00:00
cd52a7a381 Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)
Apparently, the style needs to be agreed upon first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240390 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-23 09:49:53 +00:00
cf0db29df2 Fixed/added namespace ending comments using clang-tidy. NFC
The patch is generated using this command:

tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \
  -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \
  llvm/lib/


Thanks to Eugene Kosov for the original patch!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240137 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-19 15:57:42 +00:00
f428f1732a [TableGen] Remove unused method declaration. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239801 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-16 05:44:06 +00:00
0547b62a14 [TableGen] Use the SMLoc header file instead of SourceMgr header file in a couple places. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239274 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-08 01:35:40 +00:00
030cc6948a [TableGen] Remove unnecessary include. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239249 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-07 06:01:22 +00:00
698d0ae542 [TableGen] Remove unnecessary forward declaration. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239248 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-07 06:01:19 +00:00
df70939242 [TableGen] Write one of the Record constructors in terms of the other constructor to reduce code duplication. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239247 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-07 06:01:17 +00:00
20d6747043 [TableGen] Remove unused function. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239246 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-07 06:01:15 +00:00
06b2485912 [TableGen] Use 'isa' to check if something is an UnsetInit rather than getting the UnsetInit singleton and comparing pointers. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239245 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-07 06:01:13 +00:00
d032911655 [TableGen] Change OpInit::getNumOperands and getOperand to use unsigned integers. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239210 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-06 01:34:04 +00:00
71bb0e10c4 [TableGen] Replace a couple if/else chains with a switch. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239023 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-04 07:40:16 +00:00
40c791eda9 [TableGen] Merge single prefix bit in RecordVal into PointerIntPair with Name to reduce memory usage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239021 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-04 07:40:12 +00:00
caa40ec228 [TableGen] Use range-based for loops. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238808 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-02 06:19:28 +00:00
77c7578426 Fix typo in comment. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238807 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-02 06:19:25 +00:00
61f49542d7 [TableGen] Rename ListInit::getSize to just 'size' to be more consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238806 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-02 04:15:57 +00:00
dd2a26fccb [TableGen] Move a couple virtual methods out of line so vtable anchors can be removed. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238727 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-01 06:44:18 +00:00
f15cab13cb [TableGen] Remove unnecessary explicit initialization to null of a unique_ptr. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238726 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-01 06:44:16 +00:00
ec93655812 [TableGen] Remove unnecessary forward declarations. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238725 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-01 06:44:14 +00:00
be43b88fae [TableGen] Merge RecTy::typeIsConvertibleTo and RecTy::baseClassOf. NFC
typeIsConvertibleTo was just calling baseClassOf(this) on the argument passed to it, but there weren't different signatures for baseClassOf so passing 'this' didn't really do anything interesting. typeIsConvertibleTo could have just been a non-virtual method in RecTy. But since that would be kind of a silly method, I instead re-distributed the logic from baseClassOf into typeIsConvertibleTo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238648 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-30 07:36:01 +00:00
17246b12cf [TableGen] Remove all the variations of RecTy::convertValue and just handle the conversions in convertInitializerTo directly. This saves a bunch of vtable entries. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238646 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-30 07:34:51 +00:00
60bc0ab340 [TableGen] Remove convertValue functions for UnOpInit, BinOpInit, and TernOpInit as they weren't able to be called.
I don't think converting the inputs to the Ops was the right behavior anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238543 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-29 05:51:32 +00:00
d60caada8b [TableGen] Remove unnecessary include and just forward declare. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238179 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-26 06:48:43 +00:00
43ec501d2c [TableGen] Make some variable names consistent with their type names and just generally consistent across all of the overloads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237775 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-20 05:40:13 +00:00
64f9e5908b [TableGen] Don't override convertValue for some of the Init types when it does the same thing as the base class implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237773 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-20 05:40:06 +00:00
1fbf73bae3 [TableGen] Remove ListInit::size() in favor of getSize() which does the same thing and is already used in most places. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237341 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-14 05:53:56 +00:00
a4d6a35bf8 Remove unnecessary forward declaration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237093 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-12 06:09:57 +00:00
a9a01d9879 [TableGen] Don't leak Expanders and Operators in SetTheory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235697 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-24 06:49:44 +00:00
7cc4f07bdc [TableGen] Fix all remaining memory leaks of Init and RecTy objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235696 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-24 05:38:48 +00:00
8bf10f85cd Cleanup formatting for consistency with surrounding code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235462 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-22 02:09:39 +00:00
829e013107 Remove empty non-virtual destructors or mark them =default when non-public
These add no value but can make a class non-trivially copyable. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234688 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-11 15:32:26 +00:00
7fa3dea12d Remove StringRef->std::string->StringRef conversions.
As StringInit::get() accepts StringRef there is no need 
to construct a std::string out of the StringRef input and
then construct a new StringRef from the std::string.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232551 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 21:33:38 +00:00
66981fe208 Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229340 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-15 22:54:22 +00:00
99873cb2d2 Make MultiClass::DefPrototypes own their Records to fix memory leaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223998 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-11 05:25:33 +00:00
066fdfa0dd Revert r222965 "Make MultiClass::DefPrototypes own their Records to fix memory leaks."
The bots started failing with the error below. I suspect this revision was the cause.

FAILED: /home/bb/bin/g++47   -DGTEST_HAS_RTTI=0 -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wno-maybe-uninitialized -Wno-comment -std=c++11 -ffunction-sections -fdata-sections -O3 -DNDEBUG -Ilib/TableGen -I/home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/lib/TableGen -Iinclude -I/home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/include    -fno-exceptions -fno-rtti -MMD -MT lib/TableGen/CMakeFiles/LLVMTableGen.dir/TGParser.cpp.o -MF "lib/TableGen/CMakeFiles/LLVMTableGen.dir/TGParser.cpp.o.d" -o lib/TableGen/CMakeFiles/LLVMTableGen.dir/TGParser.cpp.o -c /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/lib/TableGen/TGParser.cpp
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_tempbuf.h:62:0,
                 from /usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_algo.h:64,
                 from /usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/algorithm:63,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/include/llvm/ADT/StringRef.h:13,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/lib/TableGen/TGLexer.h:17,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/lib/TableGen/TGParser.h:17,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/lib/TableGen/TGParser.cpp:14:
/usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_construct.h: In instantiation of 'void std::_Construct(_T1*, _Args&& ...) [with _T1 = std::unique_ptr<llvm::Record>; _Args = {const std::unique_ptr<llvm::Record, std::default_delete<llvm::Record> >&}]':
/usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_uninitialized.h:77:3:   required from 'static _ForwardIterator std::__uninitialized_copy<_TrivialValueTypes>::__uninit_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = __gnu_cxx::__normal_iterator<const std::unique_ptr<llvm::Record>*, std::vector<std::unique_ptr<llvm::Record> > >; _ForwardIterator = std::unique_ptr<llvm::Record>*; bool _TrivialValueTypes = false]'
/usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_uninitialized.h:119:41:   required from '_ForwardIterator std::uninitialized_copy(_InputIterator, _InputIterator, _ForwardIterator) [with _InputIterator = __gnu_cxx::__normal_iterator<const std::unique_ptr<llvm::Record>*, std::vector<std::unique_ptr<llvm::Record> > >; _ForwardIterator = std::unique_ptr<llvm::Record>*]'
/usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_uninitialized.h:260:63:   required from '_ForwardIterator std::__uninitialized_copy_a(_InputIterator, _InputIterator, _ForwardIterator, std::allocator<_Tp>&) [with _InputIterator = __gnu_cxx::__normal_iterator<const std::unique_ptr<llvm::Record>*, std::vector<std::unique_ptr<llvm::Record> > >; _ForwardIterator = std::unique_ptr<llvm::Record>*; _Tp = std::unique_ptr<llvm::Record>]'
/usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_vector.h:310:9:   required from 'std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&) [with _Tp = std::unique_ptr<llvm::Record>; _Alloc = std::allocator<std::unique_ptr<llvm::Record> >]'
/home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/include/llvm/TableGen/Record.h:1664:8:   required from 'constexpr std::pair<_T1, _T2>::pair(_U1&&, _U2&&) [with _U1 = std::basic_string<char>&; _U2 = llvm::MultiClass; <template-parameter-2-3> = void; _T1 = std::basic_string<char>; _T2 = llvm::MultiClass]'
/usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_pair.h:273:72:   required from 'constexpr std::pair<typename std::__decay_and_strip<_T1>::__type, typename std::__decay_and_strip<_T2>::__type> std::make_pair(_T1&&, _T2&&) [with _T1 = std::basic_string<char>&; _T2 = llvm::MultiClass; typename std::__decay_and_strip<_T2>::__type = llvm::MultiClass; typename std::__decay_and_strip<_T1>::__type = std::basic_string<char>]'
/home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/lib/TableGen/TGParser.cpp:2295:78:   required from here
/usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/stl_construct.h:77:7: error: use of deleted function 'std::unique_ptr<_Tp, _Dp>::unique_ptr(const std::unique_ptr<_Tp, _Dp>&) [with _Tp = llvm::Record; _Dp = std::default_delete<llvm::Record>]'
In file included from /usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/memory:86:0,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/include/llvm/ADT/STLExtras.h:25,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/include/llvm/ADT/ArrayRef.h:14,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/include/llvm/Support/SourceMgr.h:19,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/lib/TableGen/TGParser.h:19,
                 from /home/bb/cmake-llvm-x86_64-linux/llvm-project/llvm/lib/TableGen/TGParser.cpp:14:
/usr/lib/gcc/x86_64-redhat-linux/4.7.2/../../../../include/c++/4.7.2/bits/unique_ptr.h:262:7: error: declared here
ninja: build stopped: subcommand failed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222970 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-30 00:43:50 +00:00
a1fa859a92 Make MultiClass::DefPrototypes own their Records to fix memory leaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222965 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-30 00:19:28 +00:00
2935bbc520 Make RecordKeeper::addClass/addDef take unique_ptrs instead of creating one internally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222948 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-29 05:52:51 +00:00
1d4f28c6bc Remove StringMap::GetOrCreateValue in favor of StringMap::insert
Having two ways to do this doesn't seem terribly helpful and
consistently using the insert version (which we already has) seems like
it'll make the code easier to understand to anyone working with standard
data structures. (I also updated many references to the Entry's
key and value to use first() and second instead of getKey{Data,Length,}
and get/setValue - for similar consistency)

Also removes the GetOrCreateValue functions so there's less surface area
to StringMap to fix/improve/change/accommodate move semantics, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222319 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-19 05:49:42 +00:00
763d8b2ef7 [TableGen] Fully resolve class-instance values before defs in multiclasses
By class-instance values I mean 'Class<Arg>' in 'Class<Arg>.Field' or in
'Other<Class<Arg>>' (syntactically s SimpleValue).  This is to differentiate
from unnamed/anonymous record definitions (syntactically an ObjectBody) which
are not affected by this change.

Consider the testcase:

    class Struct<int i> {
      int I = !shl(i, 1);
      int J = !shl(I, 1);
    }

    class Class<Struct s> {
        int Class_J = s.J;
    }

    multiclass MultiClass<int i> {
      def Def : Class<Struct<i>>;
    }

    defm Defm : MultiClass<2>;

Before this fix, DefmDef.Class_J yields !shl(I, 1) instead of 8.

This is the sequence of events.  We start with this:

    multiclass MultiClass<int i> {
      def Def : Class<Struct<i>>;
    }

During ParseDef the anonymous object for the class-instance value is created:

    multiclass Multiclass<int i> {
      def anonymous_0 : Struct<i>;

      def Def : Class<NAME#anonymous_0>;
    }

Then class Struct<i> is added to anonymous_0.  Also Class<NAME#anonymous_0> is
added to Def:

    multiclass Multiclass<int i> {
      def anonymous_0 {
        int I = !shl(i, 1);
        int J = !shl(I, 1);
      }

      def Def {
        int Class_J = NAME#anonymous_0.J;
      }
    }

So far so good but then we move on to instantiating this in the defm
by substituting the template arg 'i'.

This is how the anonymous prototype looks after fully instantiating.

    defm Defm = {
      def Defmanonymous_0 {
         int I = 4;
         int J = !shl(I, 1);
      }

Note that we only resolved the reference to the template arg.  The
non-template-arg reference in 'J' has not been resolved yet.

Then we go on to instantiating the Def prototype:

      def DefmDef {
         int Class_J = NAME#anonymous_0.J;
      }

Which is resolved to Defmanonymous_0.J and then to !shl(I, 1).

When we fully resolve each record in a defm, Defmanonymous_0.J does get set
to 8 but that's too late for its use.

The patch adds a new attribute to the Record class that indicates that this
def is actually a class-instance value that may be *used* by other defs in a
multiclass.  (This is unlike regular defs which don't reference each other and
thus can be resolved indepedently.)  They are then fully resolved before the
other defs while the multiclass is instantiated.

I added vg_leak to the new test.  I am not sure if this is necessary but I
don't think I have a way to test it.  I can also check in without the XFAIL
and let the bots test this part.

Also tested that X86.td.expanded and AAarch64.td.expanded were unchange before
and after this change.  (This issue triggering this problem is a WIP patch.)

Part of <rdar://problem/17688758>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217886 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-16 17:14:13 +00:00
7bd541a4dc TableGen: unique_ptr-ify RecordKeeper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216350 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-24 19:10:57 +00:00
d52b1d08df TableGen: delete no-op code
This does nothing but remove the Record from the map, and
then re-add it, without actually changing it in between.

The Record's Name used to be changed before re-adding it
when the code was first committed in r137232, but the
name-changing lines were removed in r142510, and since
then this code seems to do nothing.

This was also the only caller of removeClass or removeDef,
so now RecordKeeper owns its Records unconditionally,
and could be unique_ptr-ified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216349 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-24 19:10:53 +00:00
00e08fcaa0 Canonicalize header guards into a common format.
Add header guards to files that were missing guards. Remove #endif comments
as they don't seem common in LLVM (we can easily add them back if we decide
they're useful)

Changes made by clang-tidy with minor tweaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215558 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-13 16:26:38 +00:00
2093e2cb43 Change BitsInit to inherit from TypedInit.
This is useful in a later patch where binary literals such as 0b000 will become BitsInit values instead of IntInit values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215085 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-07 05:47:04 +00:00
c754b579ae Allow binary and for tblgen math.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214851 91177308-0d34-0410-b5e6-96231b3b80d8
2014-08-05 09:43:25 +00:00
8dd8d5c2b2 Revert "Introduce a string_ostream string builder facilty"
Temporarily back out commits r211749, r211752 and r211754.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211814 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-26 22:52:05 +00:00
2559070422 Introduce a string_ostream string builder facilty
string_ostream is a safe and efficient string builder that combines opaque
stack storage with a built-in ostream interface.

small_string_ostream<bytes> additionally permits an explicit stack storage size
other than the default 128 bytes to be provided. Beyond that, storage is
transferred to the heap.

This convenient class can be used in most places an
std::string+raw_string_ostream pair or SmallString<>+raw_svector_ostream pair
would previously have been used, in order to guarantee consistent access
without byte truncation.

The patch also converts much of LLVM to use the new facility. These changes
include several probable bug fixes for truncated output, a programming error
that's no longer possible with the new interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211749 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-26 00:00:48 +00:00
3b2a256332 Move SetTheory from utils/TableGen into lib/TableGen so Clang can use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211100 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-17 13:10:38 +00:00
68b0d1d2b4 Fix some misplaced spaces around 'override'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209589 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-24 20:19:40 +00:00
8b6f7428b0 Reformat blank lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208515 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-12 03:32:56 +00:00