Commit Graph

63627 Commits

Author SHA1 Message Date
Eric Christopher 8250e2fe7e Re-re-revert this patch. It seems to be causing performance
and correctness regressions.

llvm-svn: 111527
2010-08-19 17:21:10 +00:00
Daniel Dunbar 0d7e9538db tests: Haste makes waste.
llvm-svn: 111525
2010-08-19 16:47:54 +00:00
Daniel Dunbar 471a649c6b tests: Ignore whitespace in llvm_supports_binding() and llvm_gcc_supports().
llvm-svn: 111524
2010-08-19 16:46:52 +00:00
Eric Christopher a5d60c62b1 Silence warning.
llvm-svn: 111518
2010-08-19 15:35:27 +00:00
Benjamin Kramer 448886d5df MCELF: Count the section orders properly. Patch by Roman Divacky.
llvm-svn: 111517
2010-08-19 13:44:49 +00:00
Kenneth Uildriks d4b6ab9888 Fixed and reactivated a partial specialization test
llvm-svn: 111516
2010-08-19 12:42:38 +00:00
Eli Friedman 33087a7fe4 Use std::string instead of StringRef in ClangAttrEmitter.cpp; per report on
cfe-dev, fixes an error compiling with MSVC.  Using a StringRef here doesn't
look safe in any case.

llvm-svn: 111513
2010-08-19 06:11:05 +00:00
Jim Grosbach 743d7c80e4 Update local stack block allocation to let PEI do the allocs if no additional
base registers were required. This will allow for slightly better packing
of the locals when alignment padding is necessary after callee saved registers.

llvm-svn: 111508
2010-08-19 02:47:08 +00:00
Dan Gohman f71c521fb7 Revert r111199; it breaks -debug-pass=Structure output.
llvm-svn: 111500
2010-08-19 01:29:07 +00:00
Eric Christopher a0d40e2b4c Reapply the virtual register patch from 109102. The places where we were
depending on the number of virtual registers appear to have all been handled
now.

llvm-svn: 111499
2010-08-19 01:25:50 +00:00
Chris Lattner f547740d3f fix PR7465, mishandling of lcall and ljmp: intersegment long
call and jumps.

llvm-svn: 111496
2010-08-19 01:18:43 +00:00
Dan Gohman 129a816ee6 Process the step before the start, because it's usually the simpler
of the two.

llvm-svn: 111495
2010-08-19 01:02:31 +00:00
Chris Lattner beb506eeed minor progress towards fixing PR7465
llvm-svn: 111494
2010-08-19 01:00:34 +00:00
Eric Christopher 0d274a0258 Add an AddOptionalDefs method and use it.
llvm-svn: 111489
2010-08-19 00:37:05 +00:00
Daniel Dunbar 27b91a7410 lit/GoogleTest: Add .exe to the suffix when looking for tests.
llvm-svn: 111487
2010-08-19 00:22:45 +00:00
Alexis Hunt db5382093d Add include missing for VC build.
llvm-svn: 111484
2010-08-19 00:19:03 +00:00
Dale Johannesen 8d5f0208f2 Testcase for llvm-gcc checkin 111482.
llvm-svn: 111483
2010-08-19 00:09:07 +00:00
Bill Wendling 768d3b510c Add the "isCompare" attribute to the defm instead of each individual instr.
llvm-svn: 111481
2010-08-19 00:05:48 +00:00
Alexis Hunt fa9fd03e2d Remove three spurious semicolons
llvm-svn: 111480
2010-08-19 00:03:05 +00:00
Jakob Stoklund Olesen 92d57cee61 Don't call Predicate_* in Mips.
llvm-svn: 111468
2010-08-18 23:56:46 +00:00
Eric Christopher 8a70781cac Remove extra header.
llvm-svn: 111456
2010-08-18 23:38:16 +00:00
Alexis Hunt 1d2b159882 Finish full attribute class emission for clang.
For more information, see the accompanying clang patch.

llvm-svn: 111454
2010-08-18 23:23:09 +00:00
Jim Grosbach 3ac059369b Add a newline to debug output
llvm-svn: 111453
2010-08-18 23:14:02 +00:00
Chris Lattner 3decde9305 refix PR1143 by making basicaa analyze zexts of indices aggresively,
which I broke with a recent patch.

llvm-svn: 111452
2010-08-18 23:09:49 +00:00
Evan Cheng 25b6068b8f If any def of a machine-sink candidate has local uses, it's obviously not safe to sink it to a successor block. This bug has been hidden because a later check for critical-edge disable these illegal optimizations. This patch should significantly reduce the amount of time spent on checking dominator information for obviously unsafe sinking.
llvm-svn: 111450
2010-08-18 23:09:25 +00:00
Chris Lattner 26403acef7 GetLinearExpression is only called when TD is non-null, pass as
a reference instead of pointer.

llvm-svn: 111445
2010-08-18 22:52:09 +00:00
Chris Lattner 1b9c38796e rework GEP decomposition to make a new VariableGEPIndex struct instead of
using a pair.  This tidies up the code a bit.  While setting things up, add
a (currently unused) field to keep track of how the value is extended.

llvm-svn: 111444
2010-08-18 22:47:56 +00:00
Jim Grosbach dbfc2ce95d Enable ARM base register reuse to local stack slot allocation. Whenever a new
frame index reference to an object in the local block is seen, check if
it's near enough to any previously allocaated base register to re-use.

rdar://8277890

llvm-svn: 111443
2010-08-18 22:44:49 +00:00
Dan Gohman 492c2ea31e Add a testcase to verify that commands don't crash when they hit
errors on stderr.

llvm-svn: 111440
2010-08-18 22:35:56 +00:00
Dan Gohman c825ceefb4 Make raw_fd_ostream consider itself the owner of STDOUT_FILENO when
constructed with an output filename of "-". In particular, allow the
file descriptor to be closed, and close the file descriptor in the
destructor if it hasn't been explicitly closed already, to ensure
that any write errors are detected.

llvm-svn: 111436
2010-08-18 22:26:19 +00:00
Dan Gohman 82656fb0e1 When sending stats output to stdout for grepping, don't emit normal
output to standard output also.

llvm-svn: 111435
2010-08-18 22:22:44 +00:00
Chris Lattner 9f7500f57b move gep decomposition out of ValueTracking into BasicAA. The form of
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

Now with less tree breakingness.

llvm-svn: 111433
2010-08-18 22:07:29 +00:00
Dan Gohman 3490ff4002 Tidy.
llvm-svn: 111432
2010-08-18 22:04:43 +00:00
Bill Wendling ad2aa57774 Minor simplification. Gets rid of a needless temporary.
llvm-svn: 111430
2010-08-18 21:32:07 +00:00
Owen Anderson 80d19f0905 Use ConstantRange to propagate information through value definitions.
llvm-svn: 111425
2010-08-18 21:11:37 +00:00
Dan Gohman 2470818942 When sending stats output to stdout for grepping, don't emit normal
output to standard output also.

llvm-svn: 111401
2010-08-18 20:32:46 +00:00
Jakob Stoklund Olesen e98030ad58 Thinking about it, we don't need MachineDominatorTree after all. The DomValue
map discovers the iterated dominance frontier for free.

llvm-svn: 111400
2010-08-18 20:29:53 +00:00
Dan Gohman 50377a366f Introduce a ScopedFatalErrorHandler class to make it easy to register
fatal error handlers which automatically get unregistered at the end
of a scope.

llvm-svn: 111398
2010-08-18 20:16:39 +00:00
Jakob Stoklund Olesen f4088b022a Revert r111394. It was too aggressive.
We must complete the DFS, otherwise we might miss needed phi-defs, and
prematurely color live ranges with a non-dominating value.

This is not a big deal since we get to color more of the CFG and the next
mapValue call will be faster.

llvm-svn: 111397
2010-08-18 20:06:05 +00:00
Jakob Stoklund Olesen 5b4cb08471 Aggressively prune the DFS when inserting phi-defs.
llvm-svn: 111394
2010-08-18 19:00:11 +00:00
Jakob Stoklund Olesen ce6f055b4d Add the LiveIntervalMap class. Don't hook it up yet.
LiveIntervalMap maps values from a parent LiveInterval to a child interval that
is a strict subset. It will create phi-def values as needed to preserve the
VNInfo SSA form in the child interval.

This leads to an algorithm very similar to the one in SSAUpdaterImpl.h, but with
enough differences that the code can't be reused:

- We don't need to manipulate PHI instructions.
- LiveIntervals have kills.
- We have MachineDominatorTree.
- We can use df_iterator.

llvm-svn: 111393
2010-08-18 19:00:08 +00:00
Jakob Stoklund Olesen 2ba69d2313 Add df_iterator::getPathLength and getPath as a way of getting a path from the
entry node to the current node.

llvm-svn: 111392
2010-08-18 19:00:05 +00:00
Daniel Dunbar fbeeb130d8 Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The
form of", it doesn't pass tests.

llvm-svn: 111385
2010-08-18 18:43:08 +00:00
Bill Wendling 0d323aef46 Improve whitespace.
llvm-svn: 111384
2010-08-18 18:41:13 +00:00
Bill Wendling 817e857b13 Marked with ATTRIBUTE_USED so that clang doesn't complain.
llvm-svn: 111383
2010-08-18 18:40:57 +00:00
Owen Anderson 208636fa33 Inform LazyValueInfo whenever a block is deleted, to avoid dangling pointer issues.
llvm-svn: 111382
2010-08-18 18:39:01 +00:00
Daniel Dunbar 8e92d9b68d MC/ELF: Allow null values in virtual sections, ELF doesn't use special
directives for putting contents in .bss, for example.

llvm-svn: 111376
2010-08-18 18:22:37 +00:00
Chris Lattner 54fe883203 move gep decomposition out of ValueTracking into BasicAA. The form of
decomposition that it is doing is very basicaa specific and is only used
by basicaa.

llvm-svn: 111375
2010-08-18 18:22:17 +00:00
Jim Grosbach e0e9b3013f Add hook for re-using virtual base registers for local stack slot access.
Nothing fancy, just ask the target if any currently available base reg
is in range for the instruction under consideration and use the first one
that is. Placeholder ARM implementation simply returns false for now.

ongoing saga of rdar://8277890

llvm-svn: 111374
2010-08-18 17:57:37 +00:00
Dan Gohman 7ba6f22b47 Eliminate some redundancy by relying on raw_fd_ostream to handle "-"
properly.

llvm-svn: 111373
2010-08-18 17:55:15 +00:00