llvm-svn: 201432

llvm-svn: 201430

Recommitting r201380 (reverted in r201389)
Recommitting r201351 and r201355 (reverted in r201351 and r201355)

We weren't emitting the an empty (header only) line table when the line
table was empty - this made the DWARF invalid (the compile unit would
point to the zero-size debug_lines section where there should've been an
empty line table but there was nothing at all). Fix that, and as a
consequence this works around/addresses PR18809.

Also, we emit a non-empty line table to workaround a darwin linker bug,
so XFAILing on darwin too.

Also, mark the test as 'REQUIRES: object-emission' because it does.

llvm-svn: 201429

Summary:
This adds support for emitting DWARF path discriminator values in
the object streamer. It also changes the DWARF dumper to show
discriminator values in the line table output.

Reviewers: echristo

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2794

llvm-svn: 201427

1) Fix a specific bug when certain conversion functions are called in a program compiled as mips16 with hard float and
the program is linked as c++. There are two libraries that are reversed in the link order with gcc/g++ and clang/clang++ for
mips16 in this case and the proper stubs will then not be called. These stubs are normally handled in the Mips16HardFloat pass
but in this case we don't know at that time that we need to generate the stubs. This must all be handled later in code generation
and we have moved this functionality to MipsAsmPrinter. When linked as C (gcc or clang) the proper stubs are linked in from libc.

2) Set up the infrastructure to handle 90% of what is in the Mips16HardFloat pass in this new area of MipsAsmPrinter. This is a more
logical place to handle this and we have known for some time that we needed to move the code later and not implement it using
inline asm as we do now but it was not clear exactly where to do this and what mechanism should be used. Now it's clear to us
how to do this and this patch contains the infrastructure to move most of this to MipsAsmPrinter but the actual moving will be done
in a follow on patch. The same infrastructure is used to fix this current bug as described in #1. This change was requested by the list
during the original putback of the Mips16HardFloat pass but was not practical for us do at that time.

llvm-svn: 201426

Extracted while trying to understand http://llvm-reviews.chandlerc.com/D1764.

Patch by Matt Arsenault.

llvm-svn: 201425

Patch by Keith Walker!

llvm-svn: 201423

llvm-svn: 201395

Revert "DebugInfo: Don't include the name of the CU file in the line table file list when it's unneeded"

This reverts commit r201380 for now while we investigate.

llvm-svn: 201389

llvm-svn: 201388

llvm-svn: 201385

I added it in r201211.

llvm-svn: 201383

As v1i1 is illegal, the type legalizer tries to scalarize such node. But if the type operands of SETCC is legal, the scalarization algorithm will cause an assertion failure.

llvm-svn: 201381

Recommitting r201351 and r201355 (reverted in r201351 and r201355)

We weren't emitting the an empty (header only) line table when the line
table was empty - this made the DWARF invalid (the compile unit would
point to the zero-size debug_lines section where there should've been an
empty line table but there was nothing at all). Fix that, and as a
consequence this works around/addresses PR18809.

llvm-svn: 201380

option to enable again that will be matched with a commit to enable
in clang.

llvm-svn: 201378

A simple register copy on X86 is just 3 bytes, whereas movabsq is a 10 byte
instruction. Marking movabsq as not beeing cheap will allow LICM to move it
out of the loop and it also prevents unnecessary rematerializations if the
value is needed in more than one register.

llvm-svn: 201377

Makes addrspacecast (gep) do addrspacecast (gep) instead.

llvm-svn: 201376

llvm-svn: 201371

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
llvm-svn: 201370

llvm-svn: 201369

llvm-svn: 201368

llvm-svn: 201367

llvm-svn: 201365

It was pointing to lib\clang\3.4, but now we're on 3.5.
Make CMake insert the right version automatically.

llvm-svn: 201363

llvm-svn: 201362

llvm-svn: 201361

Summary:
There should be a space before each of these two keywords to avoid
generating invalid assembly files.

NOTE: I could not find an obvious maintainers in CODE_OWNERS.TXT, but
      this seems related to debug info.

Reviewers: echristo

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2791

llvm-svn: 201359

In theory, Clang should figure out how to parse this correctly without
typename, but since this is the last TU that Clang falls back on in the
self-host, I'm going to compromise and check for __clang__.

And now Clang can self-host on -win32 without fallback!  The 'check' and
'check-clang' targets both pass.

llvm-svn: 201358

llvm-svn: 201355

An alias is always in the section of its aliasee and has the same alignment
(since it has the same address).

llvm-svn: 201354

This patch merges MinVisitNumStack with VisitStack using a StackElement
struct.

Patch by Mehdi Amini!

llvm-svn: 201353

llvm-svn: 201352

[PR18809] Revert r201187, "DebugInfo: Don't include the name of the CU file in the line table file list when it's unneeded"

It really crashes cygwin's stage2 configure with "clang -g".

llvm-svn: 201351

This is an optimistic version of create_diretories: it tries to create the
directory first and looks at the parent only if that fails.

Running strace on "mkdir -p" shows that it is pessimistic, calling mkdir on
every element of the path. We could implement that if needed.

In any case, with both strategies there is no reason to call stat, just check
the return of mkdir.

llvm-svn: 201347

llvm-svn: 201345

No intended functionality change.

llvm-svn: 201344

llvm-svn: 201337

llvm-svn: 201336

llvm-svn: 201335

Re-commit: Demote EmitRawText call in AsmPrinter::EmitInlineAsm() and remove hasRawTextSupport() call

Summary:
AsmPrinter::EmitInlineAsm() will no longer use the EmitRawText() call for
targets with mature MC support. Such targets will always parse the inline
assembly (even when emitting assembly). Targets without mature MC support
continue to use EmitRawText() for assembly output.

The hasRawTextSupport() check in AsmPrinter::EmitInlineAsm() has been replaced
with MCAsmInfo::UseIntegratedAs which when true, causes the integrated assembler
to parse inline assembly (even when emitting assembly output). UseIntegratedAs
is set to true for targets that consider any failure to parse valid assembly
to be a bug. Target specific subclasses generally enable the integrated
assembler in their constructor. The default value can be overridden with
-no-integrated-as.

All tests that rely on inline assembly supporting invalid assembly (for example,
those that use mnemonics such as 'foo' or 'hello world') have been updated to
disable the integrated assembler.

Changes since review (and last commit attempt):
- Fixed test failures that were missed due to configuration of local build.
  (fixes crash.ll and a couple others).
- Fixed tests that happened to pass because the local build was on X86
  (should fix 2007-12-17-InvokeAsm.ll)
- mature-mc-support.ll's should no longer require all targets to be compiled.
  (should fix ARM and PPC buildbots)
- Object output (-filetype=obj and similar) now forces the integrated assembler
  to be enabled regardless of default setting or -no-integrated-as.
  (should fix SystemZ buildbots)

Reviewers: rafael

Reviewed By: rafael

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2686

llvm-svn: 201333