llvm-svn: 185207

On OpenBSD, the stack-smash protection transform uses "__guard_local"
and "__stack_smash_handler" instead of "__stack_chk_guard" and
"__stack_chk_fail".  However, CodeGen/PowerPC/stack-protector.ll
doesn't specify a target OS, so on OpenBSD it fails.

Add -mtriple=ppc32-unknown-linux to make the test host-OS agnostic. While
there, convert to FileCheck.

Patch by Matthew Dempsky.

llvm-svn: 185206

llvm-svn: 185205

Based on GCC's output for TLS variables (OP_constNu, x@dtpoff,
OP_lo_user), this implements debug info support for TLS in ELF. Verified
that this output is correct/sufficient on Linux (using gold - if you're
using binutils-ld, you'll need something with the fix for
http://sourceware.org/bugzilla/show_bug.cgi?id=15685 in it).

Support on non-ELF is sort of "arbitrary" at the moment - if Apple folks
want to discuss (or just go ahead & implement) how this should work in
MachO, etc, I'm open.

llvm-svn: 185203

This is a precursor to adding debug info support for TLS which requires
non-default relocations applied to TLS symbols.

llvm-svn: 185202

Under certain (evidently rare) circumstances, this code used to convert OR(a,
AND(x, y)) into OR(a, x). This was incorrect.

While there, I've added a comment to the code immediately above.

llvm-svn: 185201

llvm-svn: 185200

+ description for --use-analyzer option
+ managed size of columns of the 'options' table

llvm-svn: 185199

- should unbreak Windows builds

llvm-svn: 185198

- warn users when -debug-ir is used with old JIT engine (only partial debug
  info is available) 

For example, to debug an IR file with GDB (that supports JIT registration), do:

$ gdb --args lli -use-mcjit -debug-ir testcase.ll
(gdb) break main
(gdb) run
<Process continues to lli main>
(gdb) continue
<Process continues to testcase.ll main()
(gdb) step
<Now stepping through the LLVM IR in testcase.ll>

llvm-svn: 185197

William Fisher:  A bug in __lookahead::exec causes /(?=^)b/ to match ab. When  makes a recursive call to , it passes true for the value of . This causes a beginning-of-line anchor (^) inside a lookahead assertion to match anywhere in the text.  This fixes http://llvm.org/bugs/show_bug.cgi?id=11118

llvm-svn: 185196

In order to support linking against DLL, the linker needs to create defined
atoms for jump tables and etc. Because such atoms are not read from a file,
they lack some information such as an ordinal. With this patch, COFFDefinedAtom
is split into two classes; one is the base class of all COFF defined atoms, and
another is a concrete class for atoms read from file. More classes inheriting
COFFBaseDefinedAtom will be added for jump tables and etc.

llvm-svn: 185195

- missed svn add...

llvm-svn: 185194

- Build debug metadata for 'bare' Modules using DIBuilder
- DebugIR can be constructed to generate an IR file (to be seen by a debugger)
  or not in cases where the user already has an IR file on disk.

llvm-svn: 185193

Bill Fisher:  Fix for failing to throw an exception in regex when parsing an invalid escape sequence.  This fixes http://llvm.org/bugs/show_bug.cgi?id=16023

llvm-svn: 185192

is trying to do.

llvm-svn: 185191

llvm-svn: 185190

llvm-svn: 185189

llvm-svn: 185188

llvm-svn: 185187

should expand ATOMIC_CMP_SWAP nodes the same way that it does for ATOMIC_SWAP.

Since ATOMIC_LOADs on some targets (e.g. older ARM variants) get legalized to
ATOMIC_CMP_SWAPs, the missing case had been causing i64 atomic loads to crash
during isel.

<rdar://problem/14074644>

llvm-svn: 185186

- Use static functions instead of anonymous namespace.
- Appease the Doxygen lobby.
- Use 0-based induction variable.

llvm-svn: 185185

Allow a BlockFrequency to be divided by a non-zero BranchProbability
with saturating arithmetic. This will be used to compute the frequency
of a loop header given the probability of leaving the loop.

Our long division algorithm already saturates on overflow, so that was a
freebie.

llvm-svn: 185184

Dimitry Andric:  Add const to constexpr member functions in order to cope with new C++1y language rules.  This silences -Wconstexpr-not-const warnings.

llvm-svn: 185181

llvm-svn: 185180

This makes it more consistent with the ZeroOrNegativeOneBooleanContent flag

llvm-svn: 185179

llvm-svn: 185178

Fix ABI handling for function
returning bool -- use st.param.b32 to return the value
and use ld.param.b32 in caller to load the return value.

llvm-svn: 185177

llvm-svn: 185176

[NVPTX] Clean up comparison/select/convert patterns and factor out PTX instructions from their patterns

Test case is no breakage

llvm-svn: 185175

[NVPTX] Remove i8 register class.  PTX support for i8 (.b8, .u8, .s8) is rather poor and we're better off just ignoring it and letting LLVM expand all i8 ops out to i16.

llvm-svn: 185174

llvm-svn: 185173

llvm-svn: 185172

llvm-svn: 185171

Don't check for "are there any loaded sections" before trying to resolve a breakpoint site.  We've already got a process,
and any breakpoints with section relative addresses won't resolve their load addresses so they will error out at that point.

<rdar://problem/13900130>

llvm-svn: 185170

This patch assigns paired GPRs  for inline asm with
64-bit data on ARM. It's enabled for both ARM and Thumb to support modifiers
like %H, %Q, %R.

llvm-svn: 185169

llvm-svn: 185168

Implement full support for non-pointer pointers in custom allocators for string.  This completes the custom pointer support for the entire library.

llvm-svn: 185167

sys::fs::unique_file will now loop infinitely if provided with a file name
without '%' characters and the input file already exists. As a result, bugpoint
cannot use a fixed file name for the execution output (including the reference
output).

llvm-svn: 185166

I used the class to safely reset the state of the builder's debug location.  I
think I have caught all places where we need to set the debug location to a new
one. Therefore, we can replace the class by a function that just sets the debug
location.

llvm-svn: 185165