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Author SHA1 Message Date
Bob Wilson
f50e952b0d Fix PR7372: Conditional branches (at least on ARM) are treated as predicated, 
so when IfConverter::CopyAndPredicateBlock checks to see if it should ignore
an instruction because it is a branch, it should not check if the branch is
predicated.

This case (when IgnoreBr is true) is only relevant from IfConvertTriangle,
where new branches are inserted after the block has been copied and predicated.
If the original branch is not removed, we end up with multiple conditional
branches (possibly conflicting) at the end of the block.  Aside from any
immediate errors resulting from that, this confuses the AnalyzeBranch functions
so that the branches are not analyzable.  That in turn causes the IfConverter to
think that the "Simple" pattern can be applied, and things go downhill fast
because the "Simple" pattern does _not_ apply if the block can fall through.

This is pretty fragile.  If there are other degenerate cases where AnalyzeBranch
fails, but where the block may still fall through, the IfConverter should not
perform its "Simple" if-conversion.  But, I don't know how to do that with the
current AnalyzeBranch interface, so for now, the best thing seems to be to
avoid creating branches that AnalyzeBranch cannot handle.

Evan, please review!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 17:07:23 +00:00
Jakob Stoklund Olesen
0d8ba3303b Treat the ARM inline asm {cc} constraint as a physreg (%CPSR), just like X86 
does for {flags}. If we create virtual registers of the CCR class, RegAllocFast
may try to spill them, and we can't do that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106289 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 16:49:33 +00:00
Dan Gohman
4593433015 Don't bother calling releaseMemory before destroying the DominatorTreeBase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106287 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 16:09:11 +00:00
Dan Gohman
927f866105 Minor code simplifications. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106286 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 16:00:29 +00:00
Dan Gohman
03c3dc7b68 Give NamedRegionTimer an Enabled flag, allowing all its clients to 
switch from this:

  if (TimePassesIsEnabled) {
    NamedRegionTimer T(Name, GroupName);
    do_something();
  } else {
    do_something(); // duplicate the code, this time without a timer!
  }

to this:

  {
    NamedRegionTimer T(Name, GroupName, TimePassesIsEnabled);
    do_something();
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:56:31 +00:00
Dan Gohman
27445f0375 Don't replace the old Ordering object with a new one; just clear() 
the old one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106284 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:40:58 +00:00
Dan Gohman
c97df860dd Don't call clear() on DbgInfo when it's going to be deleted anyway. 
Don't replace the old DbgInfo with a new one when clear() on the
old one is sufficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106283 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:36:18 +00:00
Dan Gohman
027657db7c Change UpdateNodeOperands' operand and return value from SDValue to 
SDNode *, since it doesn't care about the ResNo value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106282 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:30:29 +00:00
Dan Gohman
07587a4500 Remove getIntegerSCEV; it's redundant with getConstant, and getConstant 
is more consistent with the ConstantInt API.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:33:50 +00:00
Dan Gohman
5ff12fc41a Delete unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:32:32 +00:00
Dan Gohman
e368b460a2 Eliminate unnecessary uses of getZExtValue(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:22:04 +00:00
Dan Gohman
7720cb3823 isValueValidForType can be a static member function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106278 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:01:07 +00:00
Eric Christopher
f627dc37bf Some assorted isTwoAddress -> Constraints cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106273 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 02:41:19 +00:00
Dan Gohman
963433115a Handle execution entrypoints with non-integer return types. 
Fix from Russel Power in PR7284.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106271 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 02:01:10 +00:00
Dan Gohman
c185a12f25 Don't write a file named "&1". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106269 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:49:17 +00:00
Dan Gohman
a52838285b Disable indvars on loops when LoopSimplify form is not available. 
This fixes PR7333.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106267 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:35:11 +00:00
Dan Gohman
e54081088e Don't maintain a set of deleted nodes; instead, use a HandleSDNode 
to track a node over CSE events. This fixes PR7368.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106266 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:24:29 +00:00
Bruno Cardoso Lopes
d7f9cc4de7 Add {mix,max}{ss,sd}{rr,rm} AVX forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106264 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:12:56 +00:00
Dan Gohman
8a7f7426ee Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass, 
which is faster, simpler, and less surprising.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:05:21 +00:00
Dan Gohman
4f46e14b8a Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 00:53:08 +00:00
Chris Lattner
f2a1224ec4 improve portability to solaris 10, PR7380, patch by Simon Billingsley! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106259 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 00:35:32 +00:00
Dan Gohman
9e86a73568 Handle ext(ext(x)) -> ext(x) immediately, since it's simple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 00:08:30 +00:00
Dan Gohman
0a13b89b24 Make this test less fragile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106255 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 00:06:03 +00:00
Dan Gohman
27ed6a41ce Simplify this code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 23:34:09 +00:00
Bruno Cardoso Lopes
597ec8ed51 Use new tablegen resources in SSE tablegen code. This will 
be done incrementally and intermixed with the adding of more
AVX instructions. This is a first step in that direction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106251 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 23:05:30 +00:00
Bruno Cardoso Lopes
93583c97f8 In case Rec is a definition and not a class, do the proper comparison! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106246 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 23:00:16 +00:00
Stuart Hastings
3bf9125933 Add a DebugLoc parameter to TargetInstrInfo::InsertBranch(). This 
addresses a longstanding deficiency noted in many FIXMEs scattered
across all the targets.

This effectively moves the problem up one level, replacing eleven
FIXMEs in the targets with eight FIXMEs in CodeGen, plus one path
through FastISel where we actually supply a DebugLoc, fixing Radar
7421831.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106243 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 22:43:56 +00:00
Dan Gohman
c22c0f37b4 Minor clarification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106234 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 19:23:50 +00:00
Jim Grosbach
59c38f31ac add missing break. inconsequential as the code shouldn't be reached, but 
for correctness' sake, it should be there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106229 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 17:58:54 +00:00
Jim Grosbach
b56ce8171e Add entries for Expanding atomic intrinsics to libcalls. Just a placeholder 
for the moment. The implementation of the libcall will follow.

Currently, the llvm-gcc knows when the intrinsics can be correctly handled by
the back end and only generates them in those cases, issuing libcalls directly
otherwise. That's too much coupling. The intrinsics should always be
generated and the back end decide how to handle them, be it with a libcall,
inline code, or whatever. This patch is a step in that direction.

rdar://8097623



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106227 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 17:50:54 +00:00
Dale Johannesen
218883aa70 Testcase for llvm-gcc 106225. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106226 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 17:43:14 +00:00
Rafael Espindola
1e81966626 Remove arm_apcscc from the test files. It is the default and doing this 
matches what llvm-gcc and clang now produce.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106221 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 15:18:27 +00:00
Douglas Gregor
ba6fc63eb2 Allow absolute paths in LLVM_TARGET_DEFINITIONS for CMake's TableGen rule 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 15:17:07 +00:00
Nate Begeman
f8c4c27d84 Modify tablegen to support generating all NEON code used by clang at once. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106207 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 04:15:13 +00:00
Jim Grosbach
7072cf62a5 Thumb1 and any pre-v6 ARM target should use the libcall expansion of 
ISD::MEMBARRIER. v7 and v7 ARM mode continue to use the custom lowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106204 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 02:02:03 +00:00
Jim Grosbach
bbfc0d22a9 ISD::MEMBARRIER should lower to a libcall (__sync_synchronize) if the target 
sets the legalize action to Expand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106203 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 02:00:53 +00:00
Bruno Cardoso Lopes
477bf62048 Fix the handling of !if result, avoiding null results for non 'int'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106201 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 01:50:39 +00:00
Jim Grosbach
c73993b678 simplify code a bit and add a more explanatory assert for cases that 
previously would result in 'cannot yet select' errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106199 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 01:37:00 +00:00
Jason Molenda
f7a503e6bb Add the entire range of DW_OP_lit[0..31], DW_OP_reg[0..31], and 
DW_OP_breg[0..31] to Dwarf.h.

Add "DW_" prefix to the llvm::dwarf::*String methods which did not
already have them in Dwarf.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106197 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 01:23:24 +00:00
Eric Christopher
e98ad83543 Hack to let the move lowering handle dynamic-no-pic absolute moves of 
TLVP:

movl _a@TLVP, %eax

Daniel: Please review if you get a chance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106194 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 00:51:48 +00:00
Eric Christopher
04b8d3cc49 Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 00:49:46 +00:00
Bruno Cardoso Lopes
eba8f1893b For a tablegen expression such as !if(a,b,c), let 'a' 
be evaluated for 'bit' operators


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106185 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 00:31:36 +00:00
Sean Hunt
e3f647360c Fix the typo in my previous one-line commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106179 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 00:10:16 +00:00
Sean Hunt
a85e1957dd Make sure CMake can build the files added by my previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106178 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 23:52:37 +00:00
Sean Hunt
16171446c6 Add preliminary clang attribute generation support. 
The attribute class generation support is still somewhat limited.
See the accompanying clang commit for more details.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106174 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 23:45:50 +00:00
Jim Grosbach
7616b646f1 format and 80-column cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106173 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 23:45:49 +00:00
Bruno Cardoso Lopes
e87de41189 let the '!eq' expression support 'int' and 'bit' types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 23:24:12 +00:00
Jim Grosbach
d0e8469ba6 remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 22:41:09 +00:00
Douglas Gregor
41f98a295a Revert r106117, which was the result of me misreading the C++98/03 
specification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106162 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 22:32:18 +00:00
Jakob Stoklund Olesen
a2846b4bee Don't attempt preserving conservative kill flags. We were doing it wrong. 
This is before LiveVariables anyway, where these kill flags are recalculated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 22:11:08 +00:00