Commit Graph

38115 Commits

Author SHA1 Message Date
Bob Wilson 25f85947a3 Handle register-to-register copies within the tGPR class.
Radar 7896289

llvm-svn: 102396
2010-04-26 23:20:08 +00:00
Bob Wilson a1e343095f Avoid adding a null MD node operand, which crashes with "-debug" when trying
to print the operand.

llvm-svn: 102395
2010-04-26 22:56:56 +00:00
Devang Patel bd798ce8dd Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This simplifies debug range entries.
llvm-svn: 102394
2010-04-26 22:54:28 +00:00
Dan Gohman 58b0470592 When checking whether the special handling for an addrec increment which
doesn't dominate the header is needed, don't check whether the increment
expression has computable loop evolution. While the operands of an
addrec are required to be loop-invariant, they're not required to 
dominate any part of the loop. This fixes PR6914.

llvm-svn: 102389
2010-04-26 21:46:36 +00:00
Dale Johannesen 59a438560c Remove crufty comments.
llvm-svn: 102380
2010-04-26 20:48:54 +00:00
Dale Johannesen 91358585d7 Handle target-specific form of DBG_VALUE in AsmPrinter.
llvm-svn: 102373
2010-04-26 20:07:31 +00:00
Dale Johannesen e098352ed1 Add DBG_VALUE handling for byval parameters; this
produces a comment on targets that support it, but
the Dwarf writer is not hooked up yet.

llvm-svn: 102372
2010-04-26 20:06:49 +00:00
Dale Johannesen bc41cfa78f Add PPC AsmPrinter handling for target-specific form of
DBG_VALUE, and a cautionary comment.

llvm-svn: 102371
2010-04-26 20:05:01 +00:00
Evan Cheng 0e6fc61f21 Insert dbg_value instructions for function entry block liveins (i.e. function arguments).
llvm-svn: 102368
2010-04-26 19:16:00 +00:00
Evan Cheng 6e45f1d1ff Promoting 16-bit cmp / test aren't free. Don't do it.
llvm-svn: 102366
2010-04-26 19:06:11 +00:00
Chris Lattner f740a8ceeb fix PR6921 a different way. Intead of increasing the
alignment of globals with a specified alignment, we fix
common variables to obey their alignment.  Add a comment
explaining why this behavior is important.

llvm-svn: 102365
2010-04-26 18:46:46 +00:00
Evan Cheng c72d8a7dad Re-enable 102323 with fix: do not update dbg_value's with incorrect frame indices when the live interval are being re-materialized.
llvm-svn: 102361
2010-04-26 18:37:21 +00:00
Chris Lattner e80442aa6d Revert r102300/102301, which serious broke objc apps.
llvm-svn: 102359
2010-04-26 18:30:45 +00:00
Chris Lattner 87aa2243e2 fix PR6940: sitofp(undef) folds to 0.0, not undef.
llvm-svn: 102358
2010-04-26 18:21:23 +00:00
Bob Wilson d561daf520 Update MachineSSAUpdater with the same changes I made for the IR-level
SSAUpdater.  I'm going to try to refactor this to share most of the code
between them.

llvm-svn: 102353
2010-04-26 17:40:49 +00:00
Evan Cheng 5ad3cc1d5e Temporary disable spiller modifying dbg_value. It's breaking build.
llvm-svn: 102327
2010-04-26 08:24:07 +00:00
Evan Cheng 1ff9d1b63e Remove a redundant comment.
llvm-svn: 102326
2010-04-26 08:16:57 +00:00
Evan Cheng f19bd4ebba Add PPC specific emitFrameIndexDebugValue.
llvm-svn: 102325
2010-04-26 07:39:36 +00:00
Evan Cheng bcb99ecc18 Add ARM specific emitFrameIndexDebugValue.
llvm-svn: 102324
2010-04-26 07:39:25 +00:00
Evan Cheng ed69b382ea - Move TargetLowering::EmitTargetCodeForFrameDebugValue to TargetInstrInfo and rename it to emitFrameIndexDebugValue.
- Teach spiller to modify DBG_VALUE instructions to reference spill slots.

llvm-svn: 102323
2010-04-26 07:38:55 +00:00
Dale Johannesen 582565e991 Stop abusing EmitInstrWithCustomInserter for target-dependent
form of DEBUG_VALUE, as it doesn't have reasonable default
behavior for unsupported targets.  Add a new hook instead.
No functional change.

llvm-svn: 102320
2010-04-25 21:33:54 +00:00
Dale Johannesen 1fc01985a3 Add comment re byval args. Doesn't actually work this way yet.
xs

llvm-svn: 102316
2010-04-25 21:03:54 +00:00
Chris Lattner 386a220f70 Fix PR6921: globals were not getting correctly rounded up to their
preferred alignment unless they were common or some other special
case.

llvm-svn: 102300
2010-04-25 05:30:43 +00:00
Chris Lattner 9deb87a996 silence a warning, patch by "mike".
llvm-svn: 102297
2010-04-25 04:44:26 +00:00
Chris Lattner b34ffe36ae remove #if 1's.
llvm-svn: 102296
2010-04-25 04:43:02 +00:00
Evan Cheng a02d0e7d6b Avoid promoting a i16 node if it would eliminate a (store (op (load))) opportunity.
llvm-svn: 102237
2010-04-24 04:44:57 +00:00
Evan Cheng 0abb54d631 When a load operand is promoted to an extload, replace other uses with uses of extload result truncated.
llvm-svn: 102236
2010-04-24 04:43:44 +00:00
Dan Gohman 534ba376f6 Generalize LSR's OptimizeMax to handle the new kinds of max expressions
that indvars may use, now that indvars is recognizing le and ge loops.

llvm-svn: 102235
2010-04-24 03:13:44 +00:00
Dan Gohman f33bac3afe ScalarEvolution support for <= and >= loops.
Also, generalize ScalarEvolutions's min and max recognition to handle
some new forms of min and max that this change makes more common.

llvm-svn: 102234
2010-04-24 03:09:42 +00:00
Dan Gohman 36cce7e0dd Use SimplifyICmpOperands in isKnownPredicate too.
llvm-svn: 102233
2010-04-24 01:38:36 +00:00
Dan Gohman 3673aa1a51 Update isImpliedCond to use the new SimplifyICmpOperands utility.
llvm-svn: 102232
2010-04-24 01:34:53 +00:00
Dan Gohman 48ff3cf63b Add a new utility function SimplifyICmpOperands. Much of this code is
refactored out of ScalarEvolution::isImpliedCond, which will be updated
to use this new utility routine soon.

llvm-svn: 102229
2010-04-24 01:28:42 +00:00
Dan Gohman 5544b0c588 Apply a fix for a vector setcc dagcombine from Jan Sjodin. No
testcase yet, as the testcase now fails downstream.

llvm-svn: 102228
2010-04-24 01:17:30 +00:00
Chris Lattner d3b361d1b6 enable my inliner change: add newly devirtualized call sites to
the worklist, making them inline candidates.

llvm-svn: 102213
2010-04-23 21:16:07 +00:00
Dan Gohman e1931fa676 Change TargetData's algorithm for computing defualt vector type
alignment to match what's used in clang and GCC for __alignof, rather
than trying to guess what Legalize is going to be doing.

llvm-svn: 102206
2010-04-23 19:41:15 +00:00
Evan Cheng b9ff130d47 Code refactoring.
llvm-svn: 102202
2010-04-23 19:10:30 +00:00
Stuart Hastings 24b63f1597 Add some missing x86 patterns for movdq2q. Fixes two (LLVM-)GCC DejaGNU testcases. Radar 6881029.
llvm-svn: 102199
2010-04-23 19:03:32 +00:00
Chris Lattner c691de3b4e switch InlineInfo.DevirtualizedCalls's list to be of WeakVH.
This fixes a bug where calls inlined into an invoke would get
changed into an invoke but the array would keep pointing to
the (now dead) call.  The improved inliner behavior is still
disabled for now.

llvm-svn: 102196
2010-04-23 18:37:01 +00:00
Chris Lattner 8c56254096 fix callgraph dump to not print 0x0x1234 for nodes.
Add the instruction pointer value for debuggability.  
We now get dump output that looks like this:

Call graph node for function: 'f1'<<0x1017086b0>>  #uses=1
  CS<0x1017046f8> calls external node

Call graph node for function: '_ZNSt6vectorIdSaIdEEC1EmRKdRKS0_'<<0x1017086f0>>  #uses=1
  CS<0x0> calls external node

Call graph node for function: 'f4'<<0x1017087a0>>  #uses=1
  CS<0x101708c88> calls function 'f3'

llvm-svn: 102194
2010-04-23 18:23:40 +00:00
Evan Cheng 0367559786 Fix X86ISD::CMP i16 to i32 promotion.
llvm-svn: 102192
2010-04-23 18:21:16 +00:00
Dan Gohman 6e9a8fcc28 Move FastISel's HandlePHINodesInSuccessorBlocks call down into FastISel
itself too.

llvm-svn: 102176
2010-04-23 15:29:50 +00:00
Dan Gohman 997bbc54d6 Fix LSR to tolerate cases where ScalarEvolution initially
misses an opportunity to fold add operands, but folds them
after LSR has separated them out. This fixes rdar://7886751.

llvm-svn: 102157
2010-04-23 01:55:05 +00:00
Dan Gohman ff3174e97f When it doesn't matter whether zero or sign extension is used,
use ScalarEvolutions "any" extend function.

llvm-svn: 102156
2010-04-23 01:51:29 +00:00
Dan Gohman e9135cb3fb Revert 102135, 102129, 102127, 102106, 102104, 102102, 102012, 102004,
because 102004 causes codegen to emit invalid assembly on at least
x86_64-unknown-gnu-linux.

llvm-svn: 102155
2010-04-23 01:18:53 +00:00
Chris Lattner 95b0ff445c reject invalid comma stuff with a message. We reject the case in
PR6888 with:

$ llvm-as t.ll
llvm-as: t.ll:2:29: error: expected metadata or 'align'
 store <3 x i32> %x, i32 1, i32 1>, <3 x i32>* %p
                            ^

instead of:

$ llvm-as t.ll 
llvm-as: 

llvm-svn: 102154
2010-04-23 00:50:50 +00:00
Chris Lattner d8d898dbd3 disable my previous inliner patch, it appears to be busting self-host.
llvm-svn: 102153
2010-04-23 00:41:03 +00:00
Chris Lattner 2eee5d3467 The inliner was choosing to not consider call sites
that appear in the SCC as a result of inlining as candidates
for inlining.  Change this so that it *does* consider call 
sites that change from being indirect to being direct as a
result of inlining.  This allows it to completely 
"devirtualize" the testcase.

llvm-svn: 102146
2010-04-22 23:37:35 +00:00
Jim Grosbach 825cb299cd Update ARM DAGtoDAG for matching UBFX instruction for unsigned bitfield
extraction. This fixes PR5998.

llvm-svn: 102144
2010-04-22 23:24:18 +00:00
Chris Lattner 4ba01ec869 refactor the interface to InlineFunction so that most of the in/out
arguments are handled with a new InlineFunctionInfo class.  This 
makes it easier to extend InlineFunction to return more info in the
future.

llvm-svn: 102137
2010-04-22 23:07:58 +00:00
Chris Lattner 016c00a311 when inlining something like this:
define void @f3(void (i8*)* %__f) ssp {
entry:
  call void %__f(i8* undef)
  unreachable
}

define void @f4(i8* %this) ssp align 2 {
entry:
  call void @f3(void (i8*)* @f2) ssp
  ret void
}

The inliner is turning the indirect call to %__f into a direct
call to F2.  Make the call graph more precise when this happens.

The inliner doesn't revisit call sites introduced by inlining,
so there isn't an easy way to test for this, but a more precise
callgraph is a good thing.

llvm-svn: 102131
2010-04-22 21:31:00 +00:00