llvm-svn: 181618

MCJIT on Windows requires an explicit target triple with "-elf" appended to generate objects in ELF format.  The common test framework was setting up this triple, but it wasn't passed to the C API in the test.

llvm-svn: 181614

Summary:
This patch allows using \n inside long help strings for command-line
options, so that all lines are equally indented. This is not a perfect solution,
as we don't (and probably don't want to) know about terminal width, but it
allows to format long help strings somehow readable without manually padding
them with spaces. A motivating example is -help output from clang-format (source
code in tools/clang-format/ClangFormat.cpp, see cl options offset, length,
style, and dump-config).

Reviewers: atrick, alexfh

Reviewed By: alexfh

CC: llvm-commits, rafael

Differential Revision: http://llvm-reviews.chandlerc.com/D779

llvm-svn: 181608

llvm-svn: 181606

The shift amount may be larger than the type leading to undefined behavior.
Limit the transform to constant shift amounts. While there update the bits to
clear in the result which may enable additional optimizations.

PR15959.

llvm-svn: 181604

This commit implements the AsmParser for fnstart, fnend,
cantunwind, personality, handlerdata, pad, setfp, save, and
vsave directives.

This commit fixes some minor issue in the ARMELFStreamer:

* The switch back to corresponding section after the .fnend
  directive.

* Emit the unwind opcode while processing .fnend directive
  if there is no .handlerdata directive.

* Emit the unwind opcode to .ARM.extab while processing
  .handlerdata even if .personality directive does not exist.

llvm-svn: 181603

llvm-svn: 181600

DAGCombiner: Generate a correct constant for vector types when folding (xor (and)) into (and (not)).

PR15948.

llvm-svn: 181597

PR15952.

llvm-svn: 181586

The BFE optimization was the only one we were actually using, and it was
emitting an intrinsic that we don't support.

https://bugs.freedesktop.org/show_bug.cgi?id=64201



Reviewed-by: Christian König <christian.koenig@amd.com>

NOTE: This is a candidate for the 3.3 branch.
llvm-svn: 181580

Patch by: Aaron Watry

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: Aaron Watry <awatry@gmail.com>

NOTE: This is a candidate for the 3.3 branch.
llvm-svn: 181579

Fixes piglit test for OpenCL builtin mul24, and allows mad24 to run.

Patch by: Aaron Watry

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: Aaron Watry <awatry@gmail.com>

NOTE: This is a candidate for the 3.3 branch.
llvm-svn: 181578

v2: Add v4i32 test

Patch by: Aaron Watry

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: Aaron Watry <awatry@gmail.com>

NOTE: This is a candidate for the 3.3 branch.
llvm-svn: 181577

v2: Add vselect v4i32 test

Patch by: Aaron Watry

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: Aaron Watry <awatry@gmail.com>

NOTE: This is a candidate for the 3.3 branch.
llvm-svn: 181576

rdar://13854369 and PR15944

llvm-svn: 181564

Teach SelectionDAG to constant fold all-constant FMA nodes the same way that it constant folds FADD, FMUL, etc.

llvm-svn: 181555

llvm-svn: 181551

llvm-svn: 181549

BitstreamWriter asserts that when blob data is written from the record
element vector, each element fits in a byte. However, if the record
elements are specified as a SmallVector of 'char', this causes a warning
from -Wtautological-constant-out-of-range-compare. Fix this by using
llvm::isUInt<8> instead of a plain comparison against 256.

llvm-svn: 181545

We generate a `push' of a random register (%rax) if the stack needs to be
aligned by the size of that register. However, this could mess up compact unwind
generation. In particular, we want to still generate compact unwind in the
presence of this monstrosity.

Check if the push of of the %rax/%eax register. If it is and it's marked with
the `FrameSetup' flag, then we can generate a compact unwind encoding for the
function only if the push is the last FrameSetup instruction.

llvm-svn: 181540

No functionality change.

llvm-svn: 181535

  iteration.
  
  This on step toward non-iterative GVN. My local hack suggests that getting rid
of iteration will speedup GVN by 30%+ on a medium sized input (2k LOC, C++).
I cannot explain why not 2x or more at this moment.

llvm-svn: 181532

getInvertedPredicatedOpcode() functions instead of switch cases.

llvm-svn: 181530

The compact unwind registers were defined in two different
places. It's better just to place them in the function that uses them
and specify that this is a 64-bit or 32-bit machine.

No functionality change.

llvm-svn: 181529

When we replace an internal alias with its target, be careful not to
replace the entry in llvm.used (and llvm.compiler_used).

llvm-svn: 181524

Previously we only checked if the LR required saving if the frame size was
non zero. However because the caller reserves 1 word for the callee to use
that doesn't count towards our frame size it is possible for the LR to need
saving and for the frame size to be 0.

We didn't hit when the LR needed saving because of a function calls because
the 1 word of stack we must allocate for our callee means the frame size
is always non zero in this case. However we can hit this case if the LR is
clobbered in inline asm.

llvm-svn: 181520

That's obviously wrong. Conservatively restrict it to the sign bit, which
matches the original intention of this analysis. Fixes PR15940.

llvm-svn: 181518

In most cases the relocation type implies the object word size and
endianness.

llvm-svn: 181515

llvm-svn: 181510

llvm-svn: 181509

Add one of my contributions to CREDITS.TXT.

llvm-svn: 181508

It was only implemented for ELF where it collected the Addend, so this
patch also renames it to getRelocationAddend.

llvm-svn: 181502

temporarily while investigating gdb.cp/templates.exp.

This reverts commit r181471.

llvm-svn: 181496

A computable loop exit count does not imply the presence of an induction
variable. Scalar evolution can return a value for an infinite loop.

Fixes PR15926.

llvm-svn: 181495

llvm-svn: 181478

- the temporaries "-debug.ll" files generated by DebugIR pass are considered tests, even though they are not

llvm-svn: 181476

for constructors and destructors since the original declaration given
by the AT_specification both won't and can't.

Patch by Yacine Belkadi, I've cleaned up the testcases.

llvm-svn: 181471

- simple one-function case
- function-calling case
- external function calling case
- exception throwing case
- vector case

Note: these tests are somewhat coupled to the current format of debug metadata.
llvm-svn: 181469

- requires existing debug information to be present
- fixes up file name and line number information in metadata
- emits a "<orig_filename>-debug.ll" succinct IR file (without !dbg metadata
  or debug intrinsics) that can be read by a debugger
- initialize pass in opt tool to enable the "-debug-ir" flag
- lit tests to follow

llvm-svn: 181467

- made all functions virtual so that subclasses can specialize them
- add printInstructionLine so that subclasses can choose whether or not to
  print the newline character (without having to implement printBasicBlock()
- added a second constructor to AssemblyWriter that does not require a
  SlotTracker, as required in order to keep the SlotTracker helper class outside
  AsmWriter.h and buried in the implementation.

llvm-svn: 181466