ProcessImplicitDefs would only mark one operand per instruction with <undef>.
This fixed PR6086.

llvm-svn: 95319

llvm-svn: 95318

ton of potential crashes of the same kind. The fundamental problem is
that type creation was following a dangerous pattern when using its
FoldingSets:
  1) Use FindNodeOrInsertPos to see if the type is available
  2) If not, and we aren't looking at a canonical type, build the
  canonical type
  3) Build and insert the new node into the FoldingSet

The problem here is that building the canonical type can, in very rare
circumstances, force the hash table inside the FoldingSet to
reallocate. That invalidates the insertion position we computed in
step 1, and in step 3 we end up inserting the new node into the wrong
place. BOOM!

I've audited all of ASTContext, fixing this problem everywhere I found
it. The vast majority of wrong code was C++-specific (and *ahem*
written by me), so I also audited other major folding sets in the C++
code (e.g., template specializations), but found no other instances of
this problem.

llvm-svn: 95315

With this fix, and the other fixes committed today a make check-all with a clang-built LLVM now gives:

Expected Passes    : 6933
Expected Failures  : 46
Unsupported Tests  : 40
Unexpected Failures: 27

which means that we pass 99.96% of all tests :) The resulting 27 tests are all LLVMC tests and seem to be because of differences in the clang and gcc drivers.

llvm-svn: 95313

llvm-svn: 95312

Fix a bug where we would not mark temporaries as conditional when emitting a conditional operator as an lvalue.

llvm-svn: 95311

llvm-svn: 95310

template parameter, perform array/function decay (if needed), take the
address of the argument (if needed), perform qualification conversions
(if needed), and remove any top-level cv-qualifiers from the resulting
expression. Fixes PR6226.

llvm-svn: 95309

Rename StartConditionalBranch/FinishConditionalBranch to BeginConditionalBranch/EndConditionalBranch.

llvm-svn: 95308

Fix another pointer-to-member function miscompile, this time when trying to call a virtual member function.

llvm-svn: 95307

llvm-svn: 95306

llvm-svn: 95305

llvm-svn: 95303

This allows to show the explicit files that need to be built/linked to get an
LLVM component.

llvm-svn: 95300

llvm-svn: 95299

direct bit manipulation.  This is is less error prone, and fixes a bug
in the handling of the LeadingZeroes flag as pointed out by Cristian
Draghici.

llvm-svn: 95298

llvm-svn: 95297

after r95292 

llvm-svn: 95296

llvm-svn: 95295

failure.

llvm-svn: 95294

64-bit sparc codegen.  Patch by Nathan Keynes!

llvm-svn: 95293

"Attached patch removes the extra NUL bytes from the output and changes
test/Archive/MacOSX.toc from a binary to a text file (removes
svn:mime-type=application/octet-stream and adds svn:eol-style=native).  I can't
figure out how to get SVN to include the new contents of the file in the patch
so I'm attaching it separately."

Patch by James Abbatiello!

llvm-svn: 95292

llvm-svn: 95291

llvm-svn: 95290

llvm-svn: 95287

llvm-svn: 95286

llvm-svn: 95284

Fix bugs where we would compute out of bounds as in bounds, and where
we couldn't know that the linker could override the size of an array.

Add a few new testcases, change existing testcase to use a private
global array instead of extern.

llvm-svn: 95283

It's too risky to eliminate sext / zext of call results for tail call optimization even if the caller / callee attributes completely match. The callee may have been bitcast'ed (or otherwise lied about what it's doing).

llvm-svn: 95282

than int. This will make it more convenient for LSR, which does
a lot of things with int64_t offsets.

llvm-svn: 95281

Indirect tail call has to go through a call preserved register since it's after callee register pops. X86 isel lowering is using EAX / R11 and it was somehow adding that to function live out. That prevented the real function return register from being added to the function live out list and bad things happen.
This fixes 483.xalancbmk (with tail call opt).

llvm-svn: 95280

llvm-svn: 95279

llvm-svn: 95275

disassembly library that provide access to
instruction information, and fixed ambiguous
wording in the comments for the header.

llvm-svn: 95274

float literals, and unresolved lookups (which required hand-wavey extensions).

llvm-svn: 95273

llvm-svn: 95272

again, so it more or less handles long double.
Restore \n removed in latest MC frenzy.

llvm-svn: 95271

Fix (and test) function-local metadata that occurs before the instruction that it refers to; fix is to not enumerate operands of function-local metadata until after all instructions have been enumerated

llvm-svn: 95269

a different return type.  While we don't emit any errors (yet), at
least we avoid cases where we might crash because of an assertion
failure later on (when the return type differs from what is expected).

llvm-svn: 95268

the rewriter. (Fixes radar 7607781).

llvm-svn: 95267