llvm-svn: 64835

The debugger sometimes lookup dynamically in the runtime to find ivar info of any Objective-C classes. It would be very helpful to debugger if the compiler encodes runtime version number in DWARF.

Add support for two additional DWARF attributes to encode Objective-C runtime version number.

llvm-svn: 64834

(Note: Eventually, commits like this will be handled via a pre-commit hook that
 does this automagically, as well as expand tabs to spaces and look for 80-col
 violations.)

llvm-svn: 64827

llvm-svn: 64815

if other hooks are missing.

llvm-svn: 64812

llvm-svn: 64811

modified in a way that may effect the trip count calculation. Change
IndVars to use this method when it rewrites pointer or floating-point
induction variables instead of using a doInitialization method to
sneak these changes in before ScalarEvolution has a chance to see
the loop. This eliminates the need for LoopPass to depend on
ScalarEvolution.

llvm-svn: 64810

eliminate all the extensions and all but the one required truncate
from the testcase, but the or/and/shift stuff still isn't zapped.

llvm-svn: 64809

llvm-svn: 64796

llvm-svn: 64791

llvm-svn: 64784

llvm-svn: 64773

llvm-svn: 64766

A couple of places where reused use operands should be marked kill. This is exposed by recent availability fallthrough changes.

llvm-svn: 64745

llvm-svn: 64719

U    include/llvm/CodeGen/DebugLoc.h
U    lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp

Enable debug location generation at -Os. This goes with the reapplication of the
r63639 patch.

llvm-svn: 64715

Testcase for rev. 64704

llvm-svn: 64705

llvm-svn: 64703

llvm-svn: 64702

llvm-svn: 64694

of an alloca or global variable.

llvm-svn: 64693

 - No functionality change.

llvm-svn: 64691

llvm-svn: 64687

llvm-svn: 64649

llvm-svn: 64626

been written for is no longer relevant with the elimination of
signed and unsigned types.

llvm-svn: 64625

the name used in the code that these tests are for.

llvm-svn: 64624

Enhance instcombine to use the preferred field of
GetOrEnforceKnownAlignment in more cases, so that regular IR operations are
optimized in the same way that the intrinsics currently are.

llvm-svn: 64623

one bit set, because the bit may be shifted off the end. Instead,
just check for a constant 1 being shifted. This is still sufficient
to handle all the cases in test/CodeGen/X86/bt.ll. This fixes PR3583.

llvm-svn: 64622

llvm-svn: 64620

by request on IRC.

llvm-svn: 64619

llvm-svn: 64617

Before this change, the program:
  int var;
  int main(void) { return 0; }
when run under 'nm -g' would show 'U var' with the gold plugin and
'B var' with gcc.

llvm-svn: 64616

when I was looking at functions used by python.

Highlights include, better largefile support (64-bit file sizes on 32-bit
systems), fputs string is nocapture, popen/pclose added (popen being noalias
return), modf and frexp and friends. Also added some missing 'break' statements
and combined identical sections.

llvm-svn: 64615

be encoded.

llvm-svn: 64600

one-definition-rule llvm-gcc changes (coming soon
to a tree near you!).

llvm-svn: 64588

llvm-svn: 64586

alias can be morphed into the target.  Implement this
transform, and fix a crash in the existing transform at
the same time.

llvm-svn: 64583

llvm-svn: 64582

Fix pr3571: If stride is a value defined by an instruction, make sure it dominates the loop preheader. When IV users are strength reduced, the stride is inserted into the preheader. It could create a use before def situation.

llvm-svn: 64579