Commit Graph

79758 Commits

Author SHA1 Message Date
Evan Cheng 51063739a4 Allow more cross-rc coalescing.
llvm-svn: 98048
2010-03-09 06:38:17 +00:00
Chris Lattner ba35a67062 reapply r98035:
Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.

llvm-svn: 98047
2010-03-09 04:54:43 +00:00
Chris Lattner 54a6876821 add some extra checks. I'm not sure why, but this does unbreak a
failure remaining on mainline.

llvm-svn: 98046
2010-03-09 04:48:35 +00:00
Evan Cheng 251787686b Revert accidental commit.
llvm-svn: 98045
2010-03-09 04:04:38 +00:00
Jakob Stoklund Olesen 7c699f92cd Don't do illegal cross-class coalescing.
llvm-svn: 98044
2010-03-09 03:56:06 +00:00
Evan Cheng 19e44b4510 - Make the machine cse dumb coalescer (as opposed to the more awesome simple
coalescer) handle sub-register classes.
- Add heuristics to avoid non-profitable cse. Given the current lack of live
  range splitting, avoid cse when an expression has PHI use and the would be
  new use is in a BB where the expression wasn't already being used.

llvm-svn: 98043
2010-03-09 03:21:12 +00:00
Dan Gohman 772952f46e Don't try to fold V_SET0 and V_SETALLONES to loads in medium and
large code models.

llvm-svn: 98042
2010-03-09 03:01:40 +00:00
Bill Wendling 46ffefc66c This is part of an LLC-beta test used to test <rdar://problem/6804645>. Please
bear with the awful code. It won't last in its current state beyond tonight.

llvm-svn: 98040
2010-03-09 02:46:12 +00:00
Eric Christopher 66194fbf86 Speculatively revert r98035. It appears to have caused a set of buildbot
failures.

llvm-svn: 98039
2010-03-09 02:36:31 +00:00
Dan Gohman 52cc041ee5 Attempt to make this debug output meaningful, both in the case of
multibyte opcodes and in the case of multiple scopes.

llvm-svn: 98036
2010-03-09 02:15:05 +00:00
Chris Lattner 06c5e9060c Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.

llvm-svn: 98035
2010-03-09 02:08:02 +00:00
Chris Lattner e13c37232a change DbgScope to keep track of the start/end label as MCSymbol*
now that the dependence on ID is removed from MMI.

llvm-svn: 98034
2010-03-09 01:58:53 +00:00
Dan Gohman 93452cebda Make isLCSSA ignore uses in blocks not reachable from the entry block,
as LCSSA no longer transforms such uses.

llvm-svn: 98033
2010-03-09 01:53:33 +00:00
Chris Lattner a552246b3d remove a useless optimization: now that label replacement never
happens, the start/end of a scope can never be the same.

llvm-svn: 98032
2010-03-09 01:52:43 +00:00
Chris Lattner c3b70f636f strength reduce MMI::MappedLabel to MMI::isLabelDeleted,
and add a FIXME about how we are eventually going to zap this
lookup table once mc world domination is complete.

llvm-svn: 98031
2010-03-09 01:51:43 +00:00
Chris Lattner 5ca47a4bdc inline RemapLabel into its only caller and simplify.
llvm-svn: 98029
2010-03-09 01:29:59 +00:00
Daniel Dunbar cb01210eca MC/Mach-O: Tweak .dump() formatting.
llvm-svn: 98028
2010-03-09 01:12:23 +00:00
Daniel Dunbar 97d64717c4 MC/Mach-O: Don't adjust section sizes when aligning zero fill sections, just pad the address.
llvm-svn: 98027
2010-03-09 01:12:20 +00:00
Dale Johannesen ace75dff75 Another place where debug info affected codegen.
llvm-svn: 98026
2010-03-09 01:08:11 +00:00
Chris Lattner 9e57c676dd mcstreamerize AsmPrinter::printLabel.
llvm-svn: 98025
2010-03-09 01:02:30 +00:00
Jakob Stoklund Olesen d62c2f554c Add inlining threshold to log output.
llvm-svn: 98024
2010-03-09 00:59:53 +00:00
Jakob Stoklund Olesen 1d9eb4667d Disable physical register coalescing when the number of live ranges for the
physreg becomes ridiculously high.

std::upper_bound may be log(N), but for sufficiently large live intervals, it
becomes log(N)*cachemiss = a long long time.

This patch improves coalescer time by 4500x for a function with 20000
function calls. The generated code is different, but not significantly worse -
the allocator hints are almost as good as physreg coalescing anyway.

llvm-svn: 98023
2010-03-09 00:59:48 +00:00
Devang Patel 408dcf60aa Start using DIFile. Corresponding llvm patch is r98020.
llvm-svn: 98021
2010-03-09 00:44:50 +00:00
Devang Patel 59445dbf78 Start using DIFile. See updated SourceLevelDebugging.html for more information.
This patch updates LLVMDebugVersion to 8.
Debug info descriptors encoded using LLVMDebugVersion 7 is supported.

Corresponding llvmgcc and clang FE commits are required.

llvm-svn: 98020
2010-03-09 00:44:10 +00:00
Bill Wendling ffba5fafb6 Print blank line and clear stubs vector.
llvm-svn: 98019
2010-03-09 00:43:34 +00:00
Bill Wendling f1eae222c9 MC-ize the stub printing in ARM.
llvm-svn: 98018
2010-03-09 00:40:17 +00:00
Chris Lattner b14490d912 add a EmitSymbolValue convenience method to MCStreamer.
llvm-svn: 98017
2010-03-09 00:39:24 +00:00
Chris Lattner 085b65283c make InlineInfoLabels hold MCSymbol*'s, avoiding
recomputation of the labels.

llvm-svn: 98016
2010-03-09 00:31:02 +00:00
Chris Lattner 53d6d1e87d mc'ize the last use of PrintLabelName and eliminate PrintLabelName.
llvm-svn: 98015
2010-03-09 00:26:09 +00:00
Chris Lattner 292ec6c299 eliminate an argument from PrintRelDirective, sinking
the one special case into EmitSectionOffset.  MCize
the non-special case in EmitSectionOffset.

llvm-svn: 98014
2010-03-09 00:17:58 +00:00
Dan Gohman f6fb1e0d93 Print the correct index in the "match failed at index" message.
llvm-svn: 98013
2010-03-09 00:07:36 +00:00
Chris Lattner b242ae6dcc remove the suffix form of PrintLabelName, which was only
used for 'flavor'.

llvm-svn: 98012
2010-03-09 00:00:57 +00:00
Chris Lattner 4d728127fb now that the debug and eh emitters use a common .set counter,
we can eliminate "flavor".

llvm-svn: 98011
2010-03-09 00:00:15 +00:00
Chris Lattner 9889c1eb9e move .set generation out of DwarfPrinter into AsmPrinter and
MCize it.

llvm-svn: 98010
2010-03-08 23:58:37 +00:00
Evan Cheng c9e8621268 Don't waste time trying to CSE labels, phis, inline asm. Definitely avoid cse implicit-def for obvious performance reason.
llvm-svn: 98009
2010-03-08 23:49:12 +00:00
Ted Kremenek 8590544ea8 Add test cases for r98003 and r98006.
llvm-svn: 98008
2010-03-08 23:38:27 +00:00
Evan Cheng 6ec41ee33c Restrict machine cse to really trivial coalescing. Leave the heavy lifting to a real coalescer.
llvm-svn: 98007
2010-03-08 23:28:08 +00:00
Ted Kremenek 0a4a8326c1 Add preprocessor guards to the definitions of size_t and wchar_t, and #undef NULL before defining it.
This addresses potential issues with system headers reported in <rdar://problem/7727159>.

llvm-svn: 98006
2010-03-08 23:23:45 +00:00
Chris Lattner 27a9732450 simplify EmitSectionOffset to always use .set if it is
available, the only thing this affects is that we produce
.set in one case we didn't before, which shouldn't harm
anything.  Make EmitSectionOffset call EmitDifference
instead of duplicating it.

llvm-svn: 98005
2010-03-08 23:23:25 +00:00
Chris Lattner d802615d0c don't reset defaults.
llvm-svn: 98004
2010-03-08 23:18:21 +00:00
Ted Kremenek 4c9862ca1d Place the definition of 'va_list' within a preprocessor guard. This matches the behavior of GCC, and avoids potential conflicts with system headers (e.g., stdio.h). Fixes <rdar://problem/7727145>.
llvm-svn: 98003
2010-03-08 23:13:05 +00:00
Chris Lattner 449a9ff14b Remove a version of EmitDifference.
llvm-svn: 98002
2010-03-08 23:02:59 +00:00
Bob Wilson 0bfbd9b68c Fix a crash compiling 254.gap for Thumb2. The Thumb2 add/sub with 12-bit
immediate instructions cannot set the condition codes, so they do not have
the extra cc_out operand.  We hit an assertion during tail duplication
because the instruction being duplicated had more operands that expected.

llvm-svn: 98001
2010-03-08 22:56:15 +00:00
Evan Cheng 4f2fd2d2be Re-commit 97860 with fix. getMallocAllocatedType may return null.
llvm-svn: 98000
2010-03-08 22:54:36 +00:00
Chris Lattner ee20b5f236 eliminate a form of PrintLabelName.
llvm-svn: 97999
2010-03-08 22:52:49 +00:00
Chris Lattner 3c081995f6 remove another form of EmitReference.
llvm-svn: 97998
2010-03-08 22:50:36 +00:00
Chris Lattner b779eb6a1d eliminate the non-MCSymbol versions of EmitReference.
llvm-svn: 97997
2010-03-08 22:47:57 +00:00
Chris Lattner 722714dde2 mc'ize EmitLabel.
llvm-svn: 97996
2010-03-08 22:44:40 +00:00
Chris Lattner 8dcf41ed66 merge DIEObjectLabel and DIEDwarfLabel into DIELabel.
Yes, DIE you fiendish labels, die all of you.

llvm-svn: 97995
2010-03-08 22:31:46 +00:00
Devang Patel 2e520f6378 Introduce DIFile. This will be used to represent header files and source file(s) in debug info.
llvm-svn: 97994
2010-03-08 22:27:22 +00:00