If there is not any llvm instruction associated with each lexical scope encoded in debug info then create such scope on demand for variable info.

llvm-svn: 84262

Thanks to Duncan Sands for noticing this bug.

llvm-svn: 84261

Thanks to Duncan Sands for noticing this bug.

llvm-svn: 84260

at the moment.

llvm-svn: 84258

llvm-svn: 84257

llvm-svn: 84256

themselves are not marked readonly, but only the called
functions.

llvm-svn: 84253

llvm-svn: 84252

llvm-svn: 84251

llvm-svn: 84250

llvm-svn: 84249

llvm-svn: 84248

llvm-svn: 84247

llvm-svn: 84246

llvm-svn: 84244

Patch by Johnny Chen.

llvm-svn: 84243

patch by Peter Johnson! (PR5195)

llvm-svn: 84239

llvm-svn: 84238

llvm-svn: 84236

llvm-svn: 84235

llvm-svn: 84234

llvm-svn: 84233

variables and symbols invalid.

llvm-svn: 84232

since they are allowed to be redefined.

llvm-svn: 84230

llvm-svn: 84229

llvm-svn: 84228

When checking aliases between phi sources and V2, we know the sources are not themselves phi nodes. However, V2 may be. Call aliasCheck with V2 first to potentially eliminate a std::swap call.

llvm-svn: 84226

I can see with the original code was that I forgot that this runs after
type legalization and hence the result type will always be i32. (Custom
legalization of EXTRACT_VECTOR_ELT is only enabled for vector types with
8- and 16-bit elements.)

Regarding the FIXME comment: any information about sign and zero-extension
should be captured by separate extension operations.  The DAG combiner should
handle those to produce either VGETLANEu or VGETLANEs, and that seems to be
working now.  If there are cases that we're missing, let me know.

llvm-svn: 84218

1. Emit external function type information for all COFF targets since it's
a feature of object format
2. Emit linker directives only for cygming (since this is ld-specific stuff)

llvm-svn: 84214

llvm-svn: 84212

Patch by Johnny Chen.

llvm-svn: 84206

is just "[Rn]" and no tailing comma with an offset, etc.

llvm-svn: 84205

In the case where there are no good places to put constants and we fall back
upon inserting unconditional branches to make new blocks, allow all constant
pool references in range of those blocks to put constants there, even if that
means resetting the "high water marks" for those references.  This will still
terminate because you can't keep splitting blocks forever, and in the bad
cases where we have to split blocks, it is important to avoid splitting more
than necessary.

llvm-svn: 84202

as expressions, code for parsing a few arm specific directives (still needs
the MCStreamer calls for these).  Some clean up of the operand parsing code
and adding some comments.

llvm-svn: 84201

llvm-svn: 84200

Fix bug where array malloc with unexpected computation of the size argument resulted in MallocHelper 
identifying the malloc as a non-array malloc.  This broke GlobalOpt's optimization of stores of mallocs 
to global variables.

The fix is to classify malloc's into 3 categories:
1. non-array mallocs
2. array mallocs whose array size can be determined
3. mallocs that cannot be determined to be of type 1 or 2 and cannot be optimized

getMallocArraySize() returns NULL for category 3, and all users of this function must avoid their 
malloc optimization if this function returns NULL.

Eventually, currently unexpected codegen for computing the malloc's size argument will be supported in
isArrayMalloc() and getMallocArraySize(), extending malloc optimizations to those examples.

llvm-svn: 84199

llvm-svn: 84196

llvm-svn: 84195

llvm-svn: 84194

llvm-svn: 84193