Added implementation of "truncate" from integer type (i64/i32/i16/i8) to i1.

llvm-svn: 197482

This reverts commit r197469.

The sanitizer and dragonegg buildbots are failing, I think because of
this change.  Reverting until I figure out why.

llvm-svn: 197481

Executable files do not use a string table, so section names longer than 8
characters are not permitted. Long section names should just be truncated.

llvm-svn: 197470

The vastart_save_xmm_regs pseudo-instruction expands to a test and a
branch, so it modifies EFLAGS.  Mark it so, or else the scheduler might
place it in the middle of another test+branch.

This fixes a bug exposed by r192750, which turned on the MI Scheduler
for X86.

<rdar://problem/15627766>

llvm-svn: 197469

With llvm-config.exe --bindir --libdir --build-mode, on Visual Studio 2010,

In build tree:
  (OBJ_ROOT)/bin/MinSizeRel
  (OBJ_ROOT)/lib/MinSizeRel
  MinSizeRel

In installed tree:
  (INSTALL_PREFIX)/bin
  (INSTALL_PREFIX)/lib
  MinSizeRel

This is enhancements since r196283.

llvm-svn: 197467

llvm-svn: 197466

Allow MachineCSE to coalesce trivial subregister copies the same way that it coalesces normal copies.

Without this, MachineCSE is powerless to handle redundant operations with truncated source operands.

This required fixing the 2-addr pass to handle tied subregisters. It isn't clear what combinations of subregisters can legally be tied, but the simple case of truncated source operands is now safely handled:

     %vreg11<def> = COPY %vreg1:sub_32bit; GR32:%vreg11 GR64:%vreg1
     %vreg12<def> = COPY %vreg2:sub_32bit; GR32:%vreg12 GR64:%vreg2
     %vreg13<def,tied1> = ADD32rr %vreg11<tied0>, %vreg12<kill>, %EFLAGS<imp-def>

Test case: cse-add-with-overflow.ll.

This exposed an existing bug in
PPCInstrInfo::commuteInstruction. Thanks to Rafael for the test case:
PowerPC/crash.ll.

llvm-svn: 197465

llvm-svn: 197464

llvm-svn: 197462

llvm-svn: 197461

[CMake][Standalone] Fix llvm-tblgen's directory to use LLVM_TOOLS_BINARY_DIR instead of LLVM_BINARY_DIR.

LLVM_BINARY_DIR points OBJROOT.

FIXME: llvm-config should show *real* bindir with --bindir.
llvm-svn: 197460

Standalone scripts shall be rewritten.

llvm-svn: 197459

Re-reading the comment I updated in previous commit, it's better to make
it more explicit and avoid ambiguity more effectively.

llvm-svn: 197458

llvm-svn: 197457

Make debugging ISel a bit easier by printing out a dump of the generated
code at the end.

llvm-svn: 197456

Tidy up built-in record creation to reduce code duplication.

Continuation of r197336.

llvm-svn: 197452

llvm-svn: 197451

llvm-svn: 197450

A phi node operand or an instruction operand could be a constant expression that
can trap (division). Check that we don't vectorize such cases.

PR16729
radar://15653590

llvm-svn: 197449

conformance is inferred. // rdar://15515206

llvm-svn: 197448

DiagnosticPrinter.cpp.
These was creating a link time dependencies of IR on CodeGen and Analysis.

Part of <rdar://problem/15515174>

llvm-svn: 197447

I was testing a stale bin/llvm-lit, which now lives at bin/llvm-lit.py
on Windows.

llvm-svn: 197446

to determine if a move function is the std::move function.  This allows functions
like std::__1::move to also be treated a the move function.

llvm-svn: 197445

This missing parameter was causing bin/llvm-lit to run the unittests
from my primary build directory instead of my self-hosting build
directory because llvm-config was on my PATH.

This more closely matches what 'make check' will pass to lit.py.

llvm-svn: 197444

This completes the cleanup/refactoring of DataLayout on the clang side. Next
is figuring out the differences between the llvm and clang produced strings

llvm-svn: 197442

llvm-svn: 197441

llvm-svn: 197440

llvm-svn: 197439

The patch adds a new LLVMContext::diagnose that can be used to communicate to
the front-end, if any, that something of interest happened.
The diagnostics are supported by a new abstraction, the DiagnosticInfo class.
The base class contains the following information:
- The kind of the report: What this is about.
- The severity of the report: How bad this is.

This patch also adds 2 classes:
- DiagnosticInfoInlineAsm: For inline asm reporting. Basically, this diagnostic
will be used to switch to the new diagnostic API for LLVMContext::emitError.
- DiagnosticStackSize: For stack size reporting. Comes as a replacement of the
hard coded warning in PEI.

This patch also features dynamic diagnostic identifiers. In other words plugins
can use this infrastructure for their own diagnostics (for more details, see
getNextAvailablePluginDiagnosticKind).

This patch introduces a new DiagnosticHandlerTy and a new DiagnosticContext in
the LLVMContext that should be set by the front-end to be able to map these
diagnostics in its own system.

http://llvm-reviews.chandlerc.com/D2376
<rdar://problem/15515174>

llvm-svn: 197438

llvm-svn: 197437

of objc_bridge_related attribute; eliminate
unnecessary diagnostics which is issued elsewhere,
fixit now produces a valid AST tree per convention.
This results in some simplification in handling of
this attribute as well. // rdar://15499111

llvm-svn: 197436

I missed these in previous commits.

llvm-svn: 197435

Enable double to float shrinking optimizations for binary functions like 'fmin/fmax'. Fix radar:15283121

llvm-svn: 197434

The f80:128:128 was followed by a f80:32:32 and so never used. Looks like this
was there since r91746.

llvm-svn: 197433

Outputs branch information for unconditional branches in addition to
conditional branches. -b option must be enabled.

Also updated tests.

llvm-svn: 197432

This allows the WebKit_JS calling convention to perform partial writes on a 4
byte granularity to stack slots.

llvm-svn: 197431

llvm-svn: 197430

llvm-svn: 197429

llvm-svn: 197428

llvm-svn: 197427