llvm-svn: 178586

llvm-svn: 178585

This reverts commit 342d92c7a0adeabc9ab00f3f0d88d739fe7da4c7.

Turns out we're going with a different schema design to represent
DW_TAG_imported_modules so we won't need this extra field.

llvm-svn: 178215

llvm-svn: 178155

llvm-svn: 178144

This is just the basic groundwork for supporting DW_TAG_imported_module but I
wanted to commit this before pushing support further into Clang or LLVM so that
this rather churny change is isolated from the rest of the work. The major
churn here is obviously adding another field (within the common DIScope prefix)
to all DIScopes (files, classes, namespaces, lexical scopes, etc). This should
be the last big churny change needed for DW_TAG_imported_module/using directive
support/PR14606.

llvm-svn: 178099

llvm-svn: 178091

llvm-svn: 178090

This will be used to factor out some uses of magic number operand offsets
inside Clang where these fields were updated in an effort to resolve forward
declarations/circular references.

llvm-svn: 178078

This is the last change in transitioning all DIScopes to have a common prefix.

llvm-svn: 177756

llvm-svn: 177754

llvm-svn: 177748

llvm-svn: 177742

InstCombine: Improve the result bitvect type when folding (cmp pred (load (gep GV, i)) C) to a bit test.

The original code used i32, and i64 if legal. This introduced unneeded
casts when they aren't legal, or when the index variable i has another
type. In order of preference: try to use i's type; use the smallest
fitting legal type (using an added DataLayout method); default to i32.
A testcase checks that this works when the index gep operand is i16.

Patch by : Ahmed Bougacha <ahmed.bougacha@gmail.com>
Reviewed by : Duncan

llvm-svn: 177712

llvm-svn: 177703

Refactor the filename/directory information in DISubprogram to refer directly to the pair rather than the DIFile.

llvm-svn: 177677

llvm-svn: 177675

llvm-svn: 177674

llvm-svn: 177661

header.

This method is called in the hot path for *many* passes, SROA is what
caught my interest. A common pattern is that which branch of the switch
should be taken is known in the callsite and so it is a very good
candidate for inlining and simplification. Moving it into the header
allows the optimizer to fold a lot of boring, repeatitive code in
callers of this routine.

I'm seeing pretty significant speedups in parts of SROA and I suspect
other passes will see similar speedups if they end up working with type
sizes frequently. I've not seen any significant growth of the binaries
as a consequence, but let me know if you see anything suspicious here.

llvm-svn: 177632

This removes the DICompileUnit special case from DIScope.

llvm-svn: 177610

They are generally faster (at least not slower) than post-inc, post-dec.

llvm-svn: 177608

llvm-svn: 177595

llvm-svn: 177590

llvm-svn: 177576

Refactor file/directory path in namespace debug info to refer directly to the pair rather than the DIFile

(paired to a Clang test - excuse the buildbot skew/fallout)

llvm-svn: 177566

Patch by Kai Nacke (kai@redstar.de)

llvm-svn: 177547

Moving the DIFile parameter to immediately proceed the tag so that it will be a
common prefix with other DIScopes (once the DIFile is replaced with the raw
file/directory pair).

llvm-svn: 177492

Sorry for the version skew - I should've committed this before the
corresponding Clang test case.

llvm-svn: 177486

Refactor the DIFile (2nd) parameter to DITypes to be an MDNode reference to a raw directory/file pair

This makes DIType's first non-tag parameter the same as DIFile's, allowing them
to both share the common implementation of getFilename/getDirectory in DIScope.

llvm-svn: 177467

This is another step along the way to making all DIScopes have a common prefix
which can be added to in a general manner to support using directives
(DW_TAG_imported_module).

llvm-svn: 177462

The testing to ensure a vector of zeros of type floating point isn't misclassified as negative zero can be simplified, as pointed out by Duncan Sands.

llvm-svn: 177386

we weren't differntiating floating-point zeroinitializers from other zero-initializers)
which was causing problems for code relying upon a + (+0.0f) to, eg, flush denormals to
0. Make the scalar and vector cases have the same behaviour.

llvm-svn: 177279

Seems some accidental C++11 crept in there. Reported by the C++98 buildbots.

llvm-svn: 177241

This is the first step to making all DIScopes have a common metadata prefix (so
that things (using directives, for example) that can appear in any scope can be
added to that common prefix). DIFile is itself a DIScope so the common prefix
of all DIScopes cannot be a DIFile - instead it's the raw filename/directory
name pair.

llvm-svn: 177239

llvm-svn: 176983

up putback to clang for mips16.

llvm-svn: 176968

This is the next step towards making the metadata for DIScopes have a common
prefix rather than having to delegate based on their tag type.

llvm-svn: 176913

llvm-svn: 176910

This could be 'null' or the empty string, DIDescriptor::getStringField
coalesces the two cases anyway so it's just a matter of legible/efficient
representation.

The change in behavior of the DICompileUnit::get* functions could be
subsumed by the full verification check - but ideally that should just be an
assertion if we could front-load the actual debug info metadata failure paths.

llvm-svn: 176907