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432efd232d
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11388 Commits

Author SHA1 Message Date
Devang Patel
432efd232d Missed earlier. This is part of previous check-in. (r102661 - refactor.) 
llvm-svn: 102662
 2010-04-29 20:48:12 +00:00
Evan Cheng
f0f25bd8e6 Add DenseMapInfo for int. 
llvm-svn: 102652
 2010-04-29 18:50:35 +00:00
Dan Gohman
78c9ada867 Elaborate on a comment. 
llvm-svn: 102637
 2010-04-29 16:57:54 +00:00
Duncan Sands
c83ef78bd3 Fix comment typo. 
llvm-svn: 102612
 2010-04-29 12:32:45 +00:00
Torok Edwin
9ddbae859f Fix PR6910. 
Limit alignment in SmallVector 8, otherwise GCC assumes 16 byte alignment.
opetaror new, and malloc only return 8-byte aligned memory on 32-bit Linux,
which cause a crash if code is compiled with -O3 (or -ftree-vectorize) and some
SmallVector code is vectorized.

llvm-svn: 102604
 2010-04-29 06:43:12 +00:00
Nick Lewycky
2b713db8ed Fix typo. 
llvm-svn: 102599
 2010-04-29 05:54:29 +00:00
Mon P Wang
bfebbd889a Add support for assemblers that don't support periods in a name 
llvm-svn: 102594
 2010-04-29 04:00:56 +00:00
Evan Cheng
6764226f8c Frame index can be negative. 
llvm-svn: 102577
 2010-04-29 01:13:30 +00:00
Evan Cheng
a02c9072fc Replace r102368 with code that's less fragile. This creates DBG_VALUE instructions for function arguments early and insert them after instruction selection is done. 
llvm-svn: 102554
 2010-04-28 23:08:54 +00:00
Chris Lattner
9867c1a075 Rework global alignment computation again. Now we do round up 
alignment of globals to the preferred alignment, but only when
there is no section specified on the global (by far the common
case).

llvm-svn: 102515
 2010-04-28 19:58:07 +00:00
Devang Patel
570e9d53a7 Emit debug info for byval parameters. 
llvm-svn: 102486
 2010-04-28 01:39:28 +00:00
Chris Lattner
19715b76b7 further simplify EmitAlignment by eliminating the 
ForcedAlignBits argument, tweaking the single client of it.

llvm-svn: 102484
 2010-04-28 01:08:40 +00:00
Chris Lattner
d14f04d0f7 remove a dead argument to EmitAlignment. 
llvm-svn: 102483
 2010-04-28 01:06:02 +00:00
Chris Lattner
2ceb31a172 Fix a problem that lower invoke has with allocas (PR6694), and 
add a version of createLowerInvokePass that allows the client
to specify whether it wants "expensive" or "cheap" lowering.

Patch by Alex Mac!

llvm-svn: 102402
 2010-04-26 23:49:32 +00:00
Chris Lattner
9292bad5f5 on darwin empty functions need to codegen into something of non-zero length, 
otherwise labels get incorrectly merged.  We handled this by emitting a 
".byte 0", but this isn't correct on thumb/arm targets where the text segment
needs to be a multiple of 2/4 bytes.  Handle this by emitting a noop.  This
is more gross than it should be because arm/ppc are not fully mc'ized yet.

This fixes rdar://7908505

llvm-svn: 102400
 2010-04-26 23:37:21 +00:00
Dale Johannesen
4327f03110 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
c4d2156a7c 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
Bob Wilson
01b2bccb00 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
dc0ce1eae8 - 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
d27eedab6d 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
Dan Gohman
0fbfae5efe 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
Chris Lattner
a61306d68f 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
Dan Gohman
6680b97d89 Move FastISel's HandlePHINodesInSuccessorBlocks call down into FastISel 
itself too.

llvm-svn: 102176
 2010-04-23 15:29:50 +00:00
Chris Lattner
5d87e1be44 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
Chris Lattner
5edbd34cff 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
Dan Gohman
d819e7fc95 Move HandlePHINodesInSuccessorBlocks functions out of SelectionDAGISel 
and into SelectionDAGBuilder and FastISel.

llvm-svn: 102123
 2010-04-22 20:46:50 +00:00
Chris Lattner
6adbb41d8c fix file header. 
llvm-svn: 102049
 2010-04-22 05:33:15 +00:00
Jakob Stoklund Olesen
8cf10fe9e4 Add fast register allocator, enabled with -regalloc=fast. 
So far this is just a clone of -regalloc=local that has been lobotomized to run
25% faster. It drops the least-recently-used calculations, and is just plain
stupid when it runs out of registers.

The plan is to make this go even faster for -O0 by taking advantage of the short
live intervals in unoptimized code. It should not be necessary to calculate
liveness when most virtual registers are killed 2-3 instructions after they are
born.

llvm-svn: 102006
 2010-04-21 18:02:42 +00:00
Evan Cheng
dbfb7dc438 Implement -disable-non-leaf-fp-elim which disable frame pointer elimination 
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181

llvm-svn: 101984
 2010-04-21 03:18:23 +00:00
Dan Gohman
4ff2d817a3 Add more const qualifiers on TargetMachine and friends. 
llvm-svn: 101977
 2010-04-21 01:34:56 +00:00
Dan Gohman
1d3532d925 Move several SelectionDAG-independent utility functions out of the 
SelectionDAG directory and into a new Analysis.cpp file.

llvm-svn: 101975
 2010-04-21 01:22:34 +00:00
Evan Cheng
a0c4b2952f - Clean up some crappy code which deals with coalescing of copies which look at 
extract_subreg / insert_subreg, etc.
- Add support for more aggressive insert_subreg coalescing.

llvm-svn: 101971
 2010-04-21 00:44:22 +00:00
Dale Johannesen
510282d54b Because of the EMMS problem, right now we have to support 
user-defined operations that use MMX register types, but
the compiler shouldn't generate them on its own.  This adds
a Synthesizable abstraction to represent this, and changes
the vector widening computation so it won't produce MMX types.
(The motivation is to remove noise from the ABI compatibility
part of the gcc test suite, which has some breakage right now.)

llvm-svn: 101951
 2010-04-20 22:34:09 +00:00
Devang Patel
788913a131 There is no need to install ValueMapper.h header. 
llvm-svn: 101949
 2010-04-20 22:18:31 +00:00
Dan Gohman
f0490a0b8e Document that TargetRegisterInfo::contains does not cover virtual registers. 
llvm-svn: 101903
 2010-04-20 14:51:20 +00:00
Chris Lattner
b6b95141ec move some select simplifications out out instcombine into 
inst simplify.  No functionality change.

llvm-svn: 101873
 2010-04-20 05:32:14 +00:00
Eric Christopher
53e7e0fcfb Remove the palignr intrinsics now that we lower them to vector shuffles, 
shifts and null vectors. Autoupgrade these to what we'd lower them to.

Add a testcase to exercise this.

llvm-svn: 101851
 2010-04-20 00:59:54 +00:00
Dan Gohman
e8387b1250 Sink DebugLoc handling out of SelectionDAGISel into FastISel and 
SelectionDAGBuilder, where it doesn't have to be as complicated.

llvm-svn: 101848
 2010-04-20 00:48:35 +00:00
Chris Lattner
2f4001f3a8 make CallGraphNode dtor abort if a node is deleted when there are still 
references to it.

llvm-svn: 101847
 2010-04-20 00:47:34 +00:00
Dan Gohman
c64745ba43 Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp 
responsible for figuring out what that's supposed to be on its own.

llvm-svn: 101844
 2010-04-20 00:37:27 +00:00
Dan Gohman
1d05054dc1 Reapply the removal of SelectionDAGISel's BB, with a fix for the case 
where multiple blocks are emitted; functions which do this need to return
the new BB so that their callers can stay current.

llvm-svn: 101843
 2010-04-20 00:29:35 +00:00
Dan Gohman
744e2b34b0 Revert 101825, which is causing trouble. 
llvm-svn: 101832
 2010-04-19 23:34:15 +00:00
Dan Gohman
94383f9d34 Eliminate SelectionDAGISel's "current block" member. Just pass it as 
an argument to things that need it.

llvm-svn: 101825
 2010-04-19 22:51:14 +00:00
Dan Gohman
e52396cb52 Remove the Expr member from IVUsers. Instead of remembering the expression, 
just ask ScalarEvolution for it on demand. This helps IVUsers be more robust
in the case of expressions changing underneath it. This fixes PR6862.

llvm-svn: 101819
 2010-04-19 21:48:58 +00:00
Dan Gohman
6bcd9dabb7 Give SelectionDAG a TargetMachine too, rather than having it 
fetch one from the MachineFunction.

llvm-svn: 101807
 2010-04-19 19:22:07 +00:00
Devang Patel
06123c1012 Add DW_AT_APPLE_omit_frame_ptr to encode -fomit-frame-pointer flag. 
llvm-svn: 101805
 2010-04-19 19:14:02 +00:00
Dan Gohman
f1f21fb3c6 Code that needs a TargetMachine should have access to one directly, rather 
than just getting one through a TargetLowering.

llvm-svn: 101802
 2010-04-19 19:05:59 +00:00
Benjamin Kramer
96b4f6c003 Don't write into MemoryBuffers. 
llvm-svn: 101783
 2010-04-19 16:15:31 +00:00
Dan Gohman
5719bd77e2 Add a few more ELF bits. 
llvm-svn: 101778
 2010-04-19 15:40:15 +00:00
Dan Gohman
26719acdb7 Add a const. 
llvm-svn: 101777
 2010-04-19 15:39:27 +00:00