init.trampoline and adjust.trampoline intrinsics, into two intrinsics
like in GCC.  While having one combined intrinsic is tempting, it is
not natural because typically the trampoline initialization needs to
be done in one function, and the result of adjust trampoline is needed
in a different (nested) function.  To get around this llvm-gcc hacks the
nested function lowering code to insert an additional parent variable
holding the adjust.trampoline result that can be accessed from the child
function.  Dragonegg doesn't have the luxury of tweaking GCC code, so it
stored the result of adjust.trampoline in the memory GCC set aside for
the trampoline itself (this is always available in the child function),
and set up some new memory (using an alloca) to hold the trampoline.
Unfortunately this breaks Go which allocates trampoline memory on the
heap and wants to use it even after the parent has exited (!).  Rather
than doing even more hacks to get Go working, it seemed best to just use
two intrinsics like in GCC.  Patch mostly by Sanjoy Das.

llvm-svn: 139140

llvm-svn: 139139

llvm-svn: 139138

llvm-svn: 139137

add more showing of my work.

llvm-svn: 139136

llvm-svn: 139135

llvm-svn: 139134

visible given a=b=c=d=1, on iteration #1 (the second iteration). Replace it with
correct math. Fixes PR10383!

llvm-svn: 139133

  RUN: foo
  RUN: bar || true

is equivalent to:

  RUN: foo && bar || true

which is equivalent to:

  RUN: (foo && bar) || true

This resulted in several of the fixit tests not really testing anything.

llvm-svn: 139132

'size_t size', instead of 'lldb::tid_t tid'.  Pass size to the StoppointLocation
ctor as well.

llvm-svn: 139131

llvm-svn: 139130

Spotted by Ninja.

llvm-svn: 139129

llvm-svn: 139128

as well as the search path printed by -print-search-dirs.

The main purpose of this change is to cause -print-file-name=include
to print the path to the include directory under Clang's resource
directory, instead of the system compiler's include directory, whose
header files Clang may not be able to parse.  Some build scripts will
do something like:
  $(CC) -nostdinc -I`$(CC) -print-file-name=include`
to exclude all header paths except the compiler's.

llvm-svn: 139127

HowFarToZero; the case for a canonical loop.

llvm-svn: 139126

instructions are more aligned than the CPU requires, and adds some additional
directives, to follow in future patches. Patch by David Meyer!

llvm-svn: 139125

llvm-svn: 139124

llvm-svn: 139122

InstSimplify: Don't try to replace an extractvalue/insertvalue pair with the original value if types don't match.

Fixes clang selfhost.

llvm-svn: 139120

exception.

llvm-svn: 139117

Speed up BCPL comment lexing by looking aggressively for newlines and then scannig backwards to see if the newline is escaped.

3% speedup in preprocessing all of clang with -Eonly. Also includes a small testcase for coverage.

llvm-svn: 139116

llvm-svn: 139115

llvm-svn: 139114

up do-nothing exception handling code produced by dragonegg.

llvm-svn: 139113

a very large chunk of code and found zero false positives. I've only
found a few bugs, but that likely is because bugs of this nature
actually do manifest. We've also identified several bugs that were
caught by Valgrind, but would have been caught faster and more easily
with this warning.

If anyone has concerns, or this causes fallout on any build bots, lemme
know. I'm happy to just put it under -Wmost.

llvm-svn: 139112

Implement the suggested resolution of WG21 N3307 issue 19: When determining whether a class is an aggregate in C++0x, treat all functions which are neither deleted nor defaulted as user-provided, not just special member functions. The wording of the standard only defines the term "user-provided" for special member functions, but the intent seems to be that any function can be user-provided.

llvm-svn: 139111

- Drop support for X >u 0, it's equivalent to X != 0 and should be canonicalized into the latter.
- Add X < 1 -> unlikely, which is what instcombine canonicalizes X <= 0 into.
- Add X > -1 -> likely, which is what instcombine canonicalizes X >= 0 into.

llvm-svn: 139110

llvm-svn: 139109

edis shared library in the Makefile build, also stop building it in the
CMake build.

Patch by arrowdodger!

llvm-svn: 139108

some CMake patch backlog...

llvm-svn: 139107

Patch by arrowdodger!

llvm-svn: 139106

Pass 0 instead of a empty TemplateArgumentListInfo when creating a CXXDependentScopeMemberExpr to handle a "this->" fixit (lookup into dependent bases of class template)

Otherwise the fixit doesn't really work for subsequent lookup.

llvm-svn: 139105

llvm-svn: 139104

PR10458: Last part of providing 'auto' type specifier as an extension in C++98: permit it within type-ids.

llvm-svn: 139103

PR10458: Finesse behaviour of C++0x features when in pre-0x mode. Accept for-range and auto with an ExtWarn, and produce a -Wc++0x-compat warning in C++98 mode when auto is used as a storage class.

llvm-svn: 139102

Fix bug this uncovered.
Address minor comments from Doug.
Enable cxx_implicit_moves feature.

llvm-svn: 139101

llvm-svn: 139097

llvm-svn: 139096

llvm-svn: 139095

llvm-svn: 139094