improve interfaces to instsimplify to take this info.

llvm-svn: 125196

llvm-svn: 125195

versions of creation functions.  Eventually, the "insertion point" versions
of these should just be removed, we do have IRBuilder afterall.

Do a massive rewrite of much of pattern match.  It is now shorter and less
redundant and has several other widgets I will be using in other patches.
Among other changes, m_Div is renamed to m_IDiv (since it only matches 
integer divides) and m_Shift is gone (it used to match all binops!!) and
we now have m_LogicalShift for the one client to use.

Enhance IRBuilder to have "isExact" arguments to things like CreateUDiv
and reduce redundancy within IRbuilder by having these methods chain to
each other more instead of duplicating code.

llvm-svn: 125194

an annoyance of mine when working on tests: if the input .ll file
is broken, opt outputs an error and generates an empty file.  FileCheck
then emits its "ooh I couldn't find the first CHECK line, scanning
from ..." which obfuscates the actual problem.

llvm-svn: 125193

llvm-svn: 125192

llvm-svn: 125191

llvm-svn: 125190

all covered by llvm-test, which is what they were reduced from back
in 2003.

llvm-svn: 125189

llvm-svn: 125188

[AVX] Implement 256-bit vector lowering for INSERT_VECTOR_ELT.

llvm-svn: 125187

llvm-svn: 125186

llvm-svn: 125185

complaining.

llvm-svn: 125184

there were only three virtual methods of any significance.

The primary way to grab child iterators now is with
  Stmt::child_range children();
  Stmt::const_child_range children() const;
where a child_range is just a std::pair of iterators suitable for
being llvm::tie'd to some locals.  I've left the old child_begin()
and child_end() accessors in place, but it's probably a substantial
penalty to grab the iterators individually now, since the
switch-based dispatch is kindof inherently slower than vtable
dispatch.  Grabbing them together is probably a slight win over the
status quo, although of course we could've achieved that with vtables, too.

I also reclassified SwitchCase (correctly) as an abstract Stmt
class, which (as the first such class that wasn't an Expr subclass)
required some fiddling in a few places.

There are somewhat gross metaprogramming hooks in place to ensure
that new statements/expressions continue to implement
getSourceRange() and children().  I had to work around a recent clang
bug;  dgregor actually fixed it already, but I didn't want to
introduce a selfhosting dependency on ToT.

llvm-svn: 125183

llvm-svn: 125182

llvm-svn: 125181

could end up removing a different function than we intended because it was
functionally equivalent, then end up with a comparison of a function against
itself in the next round of comparisons (the one in the function set and the
one on the deferred list). To fix this, I introduce a choice in the form of
comparison for ComparableFunctions, either normal or "pointer only" used to
find exact Function*'s in lookups.

Also add some debugging statements.

llvm-svn: 125180

llvm-svn: 125179

llvm-svn: 125178

  - Note "GnuWin32".
  - Note LLVM_LIT_TOOLS_DIR
  - Now we can run tests on VS w/e all tests might pass or not!

llvm-svn: 125177

LitConfig.getBashPath() will not seek in $PATH after LitConfig.getToolsPath() was executed.

llvm-svn: 125176

It seeks tools(eg. [cmp, grep, sed]) in same directory, to be sane.

It seeks "bash" only in the directory found at last time. Or bash would be insane (against other tools).

llvm-svn: 125175

checkToolsPath(dir,tools):
return True if "dir" contains all "tools".

whichTools(tools,paths):
return a directory that contains all "tools" in "paths".
Or return None when all "tools" were not met.

llvm-svn: 125174

llvm-svn: 125173

AC_CHECK_FUNCS seeks a symbol only in libs. We should check the declaration in string.h.

FIXME: I have never seen mingw(s) have strerror_s() (not _strerror_s()).
FIXME: Autoconf/CMake may seek strerror_s() with the definition MINGW_HAS_SECURE_API in future.
llvm-svn: 125172

Windows/Windows.h: Redefine _WIN32_WINNT here. mingw-w64 tends to define it as 0x0502 in its headers.

llvm-svn: 125171

Windows/Program.inc: Eliminate the declaration of SetInformationJobObject(). It should be provided with _WIN32_WINNT>=0x0500.

llvm-svn: 125170

llvm-svn: 125169

llvm-svn: 125168

llvm-svn: 125167

llvm-svn: 125166

llvm-svn: 125165

llvm-svn: 125163

llvm-svn: 125162

<rdar://problem/8972204> Test failure: ./dotest.py -v -t -f UniversalTestCase.test_process_launch_for_universal

Fix for bad architecture settings that were being used from the qHostInfo.

llvm-svn: 125161

llvm-svn: 125158

and we later find the definition, make sure that we add the definition
(not the declaration) to the list of deferred definitions to
emit. Fixes PR8864.

Thanks to Nick Lewycky for testing this	patch out

llvm-svn: 125157

functionality intended.

llvm-svn: 125156

static analyzer: Further reduce the analyzer's memory usage when analyzing sqlite3 by 7-10% by recylcing "uninteresting" ExplodedNodes.

The optimization involves eagerly pruning ExplodedNodes from the ExplodedGraph that contain
practically no difference between the predecessor and successor nodes.  For example, if
the state is different between a predecessor and a node, the node is left in.  Only for
the 'environment' component of the state do we not care if the ExplodedNodes are different.
This paves the way for future optimizations where we can reclaim the environment objects.

llvm-svn: 125154

llvm-svn: 125153