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37940 Commits

Author SHA1 Message Date
Evan Cheng
81f543c005 Fix codegen passes. -disable-ssc shouldn't disable postra machine licm. 
llvm-svn: 101622
 2010-04-17 06:47:47 +00:00
Evan Cheng
6442d111dd More work to allow dag combiner to promote 16-bit ops to 32-bit. 
llvm-svn: 101621
 2010-04-17 06:13:15 +00:00
Evan Cheng
aa2f3449c4 Another 80 col violation. 
llvm-svn: 101620
 2010-04-17 06:12:32 +00:00
Bob Wilson
7e53f886d2 Revise my previous change to ExpandBIT_CONVERT. I hadn't realized that this 
may be called when either the source or destination type is i64, and my
change also hadn't fixed the most obvious problem -- assuming that i64 will
only be bitconverted to f64, ignoring the various vector types.
Radar 7873160.

llvm-svn: 101615
 2010-04-17 05:30:19 +00:00
Bob Wilson
ad00f21093 Re-commit my previous SSAUpdater changes. The previous version naively tried 
to determine where to place PHIs by iteratively comparing reaching definitions
at each block.  That was just plain wrong.  This version now computes the
dominator tree within the subset of the CFG where PHIs may need to be placed,
and then places the PHIs in the iterated dominance frontier of each definition.
The rest of the patch is mostly the same, with a few more performance
improvements added in.

llvm-svn: 101612
 2010-04-17 03:08:24 +00:00
Bob Wilson
01b8b8ef7d As a temporary workaround for post-RA not handling DebugValue instructions, 
just remove them all.  Radar 7873207 (working around the root problem of
Radar 7759363).

llvm-svn: 101604
 2010-04-17 00:49:11 +00:00
Jakob Stoklund Olesen
2f0fbb4587 Revert "Use a simpler data structure to calculate the least recently used register in RegAllocLocal." 
This reverts commit 101392. It broke a buildbot.

llvm-svn: 101595
 2010-04-17 00:38:36 +00:00
Chris Lattner
36a76e4185 disable r101565: an assert is getting triggered. More lurking badness no doubt. 
llvm-svn: 101583
 2010-04-17 00:05:36 +00:00
Chris Lattner
136547652d add a note 
llvm-svn: 101581
 2010-04-16 23:52:30 +00:00
Eric Christopher
e78496e5f1 Revert 101465, it broke internal OpenGL testing. 
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.

llvm-svn: 101579
 2010-04-16 23:37:20 +00:00
Devang Patel
1929d78e71 Add support to emit dwarf ranges. 
llvm-svn: 101575
 2010-04-16 23:33:45 +00:00
Jakob Stoklund Olesen
51248b6cb4 Use a simpler data structure to calculate the least recently used register in RegAllocLocal. 
This makes the local register allocator about 20% faster.

llvm-svn: 101574
 2010-04-16 23:32:37 +00:00
Johnny Chen
8de98d4036 Cast to (uint64_t) instead of relying on the "ul" suffix. 
llvm-svn: 101573
 2010-04-16 23:30:28 +00:00
Chris Lattner
d28dcb3ffe building on the new CallGraphSCC abstraction, teach CallGraphSCCPassManager 
to keep the node entries in scc_iterator up to date instead of dangling as
the SCC mutates.

This is a really terrible problem which was causing -g to affect codegen 
because it would permute the memory image of the compiler process.

Thanks to Dale for expertly hunting it down.

llvm-svn: 101565
 2010-04-16 23:04:30 +00:00
Dan Gohman
982923742d Add skeleton target-specific SelectionDAGInfo files. 
llvm-svn: 101564
 2010-04-16 23:04:22 +00:00
Johnny Chen
2b1390e9bc Fixed logic error. Should check Builder for validity before calling SetSession 
on it.

llvm-svn: 101563
 2010-04-16 23:02:25 +00:00
Chris Lattner
a9a7c28cd2 move ReplaceNode out of line, rename scc_iterator::fini -> isAtEnd(). 
No functionality change.

llvm-svn: 101562
 2010-04-16 22:59:24 +00:00
Chris Lattner
6a038be777 introduce a new CallGraphSCC class, and pass it around 
to CallGraphSCCPass's instead of passing around a
std::vector<CallGraphNode*>.  No functionality change,
but now we have a much tidier interface.

llvm-svn: 101558
 2010-04-16 22:42:17 +00:00
Johnny Chen
44087236da Fixed a bug in DisassembleN1RegModImmFrm() where a break stmt was missing for a 
case.  Also, the 0xFF hex literal involved in the shift for ESize64 should be
suffixed "ul" to preserve the shift result.

Implemented printHex*ImmOperand() by copying from ARMAsmPrinter.cpp and added a
test case for DisassembleN1RegModImmFrm()/printHex64ImmOperand().

llvm-svn: 101557
 2010-04-16 22:40:20 +00:00
Evan Cheng
b55929892f (i32 sext_in_reg (i32 aext (i16 x)), i16) -> (i32 sext x). No known test case until -promote-16bit is enabled. 
llvm-svn: 101551
 2010-04-16 22:26:19 +00:00
Chris Lattner
5d6a95d587 move PrintCallGraphPass out of the middle of CGPassManager. 
llvm-svn: 101543
 2010-04-16 21:43:55 +00:00
Chris Lattner
4671fb68c5 add a missing break back, patch by Nico Schmidt! 
llvm-svn: 101538
 2010-04-16 21:15:15 +00:00
Dan Gohman
b3afc2a215 Create a new TargetSelectionDAGInfo class. This will eventually acquire 
SelectionDAG-specific parts of TargetLowering.

llvm-svn: 101537
 2010-04-16 21:12:11 +00:00
Dan Gohman
2912cb780f Commit this, which should have accompanied 101531. 
llvm-svn: 101532
 2010-04-16 20:22:43 +00:00
Dan Gohman
1119e6060b Eliminate an unnecessary SelectionDAG dependency in getOptimalMemOpType. 
llvm-svn: 101531
 2010-04-16 20:11:05 +00:00
Johnny Chen
7ac96eac03 In the same spirit of r101524, which removed the assert() from printAddrMode2OffsetOperand(), 
this patch removes the assert() from printAddrMode3OffsetOperand() and adds a test case.

llvm-svn: 101529
 2010-04-16 19:57:21 +00:00
Johnny Chen
3cc0200f74 Multiclass LdStCop was using pre-UAL syntax LDC<c>L for the L fragment. Changed 
to the UAL syntax of LDCL<c>, instead.

Add a test case for this change which also tests the removal of assert() from
printAddrMode2OffsetOperand().

llvm-svn: 101527
 2010-04-16 19:33:23 +00:00
Johnny Chen
3a03b36cd0 Remove the assert() from printAddrMode2OffsetOperand(). "#0 and #-0" are 
considered legal instructions.

Refs: A8.6.51 LDC, LDC2 (immediate) -- page A8-107, A8.6.58 LDR (immediate, ARM)
-- page A8-121, and A8.6.194 STR (immediate, ARM) -- page A8-395.

llvm-svn: 101524
 2010-04-16 19:10:52 +00:00
Evan Cheng
80afc6964c 80 col. 
llvm-svn: 101501
 2010-04-16 17:58:41 +00:00
Evan Cheng
e541446e11 80 col. 
llvm-svn: 101500
 2010-04-16 17:57:59 +00:00
Dan Gohman
e9683c52da Avoid creating virtual registers for unused values. 
llvm-svn: 101480
 2010-04-16 17:15:02 +00:00
Dan Gohman
30de6c2b1c Fix an assertion string. 
llvm-svn: 101478
 2010-04-16 16:55:18 +00:00
Dan Gohman
cb1d4ed9d0 Fix a comment. 
llvm-svn: 101477
 2010-04-16 16:52:37 +00:00
Dan Gohman
58add81e7d Disable inlining of recursive calls. It can complicate tailcallelim and 
dependent analyses, and increase code size, so doing it profitably would
require more complex heuristics.

llvm-svn: 101471
 2010-04-16 16:01:18 +00:00
Dan Gohman
f0457a82fa Refine the detection of seemingly infinitely recursive calls where the 
callee is expected to be expanded to something else by codegen, so that
normal infinitely recursive calls are still transformed.

llvm-svn: 101468
 2010-04-16 15:57:50 +00:00
Gabor Greif
e7d6812008 reapply r101434 
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101465
 2010-04-16 15:33:14 +00:00
Dan Gohman
f754ff8ee9 Make callIsSmall accessible as a utility function. 
llvm-svn: 101463
 2010-04-16 15:14:50 +00:00
Dan Gohman
2d575a91e0 Fix SCEVCommutativeExpr::print to be robust in the case of improper 
expression canonicalization. Its job is to print what's there, not to
make judgements about it.

llvm-svn: 101461
 2010-04-16 15:03:25 +00:00
Bill Wendling
7ede9396f4 The JIT calls TidyLandingPads to tidy up the landing pads. However, because the 
JIT doesn't use the MC back-end asm printer to emit labels that it uses, the
section for the MCSymbol is never set. And thus the MCSymbol for the EH label
isn't marked as "defined". Because of that, TidyLandingPads removes the needed
landing pads from the JIT output. This breaks EH for every JIT program.

This is a work-around for this limitation. We pass in the label locations
map. If the label has a non-zero value, then it was "emitted" by the JIT and
TidyLandingPads shouldn't remove that label.

A nicer solution would be to mark the MCSymbol as "used" by the JIT and not rely
upon the section being set to determine if it's defined or not.

llvm-svn: 101453
 2010-04-16 08:46:10 +00:00
Evan Cheng
d143bfe0a4 Adding support for dag combiner to promote operations for profit. This requires target specific queries. For example, x86 should promote i16 to i32 when it does not impact load folding. 
x86 support is off by default. It can be enabled with -promote-16bit.

Work in progress.

llvm-svn: 101448
 2010-04-16 06:14:10 +00:00
Evan Cheng
428f7f39a8 Use getAL() rather than a major constant. 
llvm-svn: 101446
 2010-04-16 05:46:06 +00:00
Dan Gohman
01d4af69bf Refine further the scope where the global DebugLoc value is active. 
llvm-svn: 101443
 2010-04-16 05:06:56 +00:00
Eric Christopher
ebbc0cfced Silence an unused variable warning. 
llvm-svn: 101438
 2010-04-16 04:02:04 +00:00
Chris Lattner
74934dcb1d fix comment noticed by Bob 
llvm-svn: 101437
 2010-04-16 02:32:17 +00:00
Gabor Greif
cd116e8c6a back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
llvm-svn: 101434
 2010-04-16 01:16:20 +00:00
Chris Lattner
f90092185c fix PR6832: we were using the alignment of a pointer when we 
wanted the alignment of the pointee.

llvm-svn: 101432
 2010-04-16 01:05:38 +00:00
Chris Lattner
5baf2c68e5 improve comments. 
llvm-svn: 101429
 2010-04-16 00:38:19 +00:00
Chris Lattner
9c8dd19de8 pull all the ConvertToScalarInfo code together into one 
place.

llvm-svn: 101427
 2010-04-16 00:24:57 +00:00
Chris Lattner
082c018658 more refactoring: suck some stuff out of SRoA into 
ConvertToScalarInfo.

llvm-svn: 101425
 2010-04-16 00:20:00 +00:00
Gabor Greif
257aae9752 shift intrinsic operand 
llvm-svn: 101423
 2010-04-16 00:06:45 +00:00