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c608784dc8
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9145 Commits

Author SHA1 Message Date
Chris Lattner
c608784dc8 reapply r98035: 
Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98047 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 04:54:43 +00:00
Chris Lattner
6c7dfc0463 add some extra checks. I'm not sure why, but this does unbreak a 
failure remaining on mainline.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98046 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 04:48:35 +00:00
Evan Cheng
7ef1840d9e Revert accidental commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98045 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 04:04:38 +00:00
Jakob Stoklund Olesen
1552cccc76 Don't do illegal cross-class coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98044 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 03:56:06 +00:00
Evan Cheng
31f94c7c22 - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 03:21:12 +00:00
Eric Christopher
ee6414cf04 Speculatively revert r98035. It appears to have caused a set of buildbot 
failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98039 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 02:36:31 +00:00
Dan Gohman
19b3826d0f Attempt to make this debug output meaningful, both in the case of 
multibyte opcodes and in the case of multiple scopes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98036 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 02:15:05 +00:00
Chris Lattner
1e233f510c Now that setStartLabel takes an MCSymbol, we can de-ID'ize 
beginScope and RecordSourceLine.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98035 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 02:08:02 +00:00
Chris Lattner
b7db733482 change DbgScope to keep track of the start/end label as MCSymbol* 
now that the dependence on ID is removed from MMI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98034 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 01:58:53 +00:00
Chris Lattner
5b9062cb3a remove a useless optimization: now that label replacement never 
happens, the start/end of a scope can never be the same.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 01:52:43 +00:00
Chris Lattner
a34ec2290f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 01:51:43 +00:00
Chris Lattner
b2cc1a39f7 mcstreamerize AsmPrinter::printLabel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98025 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 01:02:30 +00:00
Jakob Stoklund Olesen
35071a0847 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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98023 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 00:59:48 +00:00
Chris Lattner
6cde3e6e99 add a EmitSymbolValue convenience method to MCStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98017 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 00:39:24 +00:00
Chris Lattner
6ed0f90dac make InlineInfoLabels hold MCSymbol*'s, avoiding 
recomputation of the labels.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98016 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 00:31:02 +00:00
Chris Lattner
b9dc5f7b58 mc'ize the last use of PrintLabelName and eliminate PrintLabelName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98015 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 00:26:09 +00:00
Chris Lattner
ef6b14f51c eliminate an argument from PrintRelDirective, sinking 
the one special case into EmitSectionOffset.  MCize
the non-special case in EmitSectionOffset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98014 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 00:17:58 +00:00
Dan Gohman
8f03d75161 Print the correct index in the "match failed at index" message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 00:07:36 +00:00
Chris Lattner
b67d69df65 remove the suffix form of PrintLabelName, which was only 
used for 'flavor'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98012 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 00:00:57 +00:00
Chris Lattner
c3421bb805 now that the debug and eh emitters use a common .set counter, 
we can eliminate "flavor".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98011 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-09 00:00:15 +00:00
Chris Lattner
0d50c7620d move .set generation out of DwarfPrinter into AsmPrinter and 
MCize it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98010 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 23:58:37 +00:00
Evan Cheng
5196018d9c Don't waste time trying to CSE labels, phis, inline asm. Definitely avoid cse implicit-def for obvious performance reason. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 23:49:12 +00:00
Evan Cheng
6c3b8ac6c9 Restrict machine cse to really trivial coalescing. Leave the heavy lifting to a real coalescer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98007 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 23:28:08 +00:00
Chris Lattner
57578766aa 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98005 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 23:23:25 +00:00
Chris Lattner
effa868d38 Remove a version of EmitDifference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98002 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 23:02:59 +00:00
Chris Lattner
dd8187a3e9 eliminate a form of PrintLabelName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97999 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 22:52:49 +00:00
Chris Lattner
326861c4c8 remove another form of EmitReference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97998 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 22:50:36 +00:00
Chris Lattner
c7249da2e9 eliminate the non-MCSymbol versions of EmitReference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97997 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 22:47:57 +00:00
Chris Lattner
f829eef8fa mc'ize EmitLabel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97996 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 22:44:40 +00:00
Chris Lattner
4faf59af82 merge DIEObjectLabel and DIEDwarfLabel into DIELabel. 
Yes, DIE you fiendish labels, die all of you.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97995 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 22:31:46 +00:00
Chris Lattner
b98b1bf432 elimiante the DWLabel class, using MCSymbol instead. Start 
switching some stuff over to passing around MCSymbol* instead
of stem+ID.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97993 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 22:23:36 +00:00
Devang Patel
77bf295dbb Derive DIType from DIScope. This simplifies getContext() where for members the context is a type. This also eliminates need of CompileUnitMaps maintained by dwarf writer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 22:02:50 +00:00
Devang Patel
3c91b05d2b Avoid using DIDescriptor.isNull(). 
This is a first step towards eliminating checks in Descriptor constructors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97975 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 20:52:55 +00:00
Devang Patel
0ef3fa6aab Revert r97947. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97963 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 19:20:38 +00:00
Devang Patel
d8cc5d5256 Avoid using DIDescriptor.isNull(). 
This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97947 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 18:25:48 +00:00
Dale Johannesen
fab4a25d46 Add Order to SDDbgValue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97939 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 05:39:50 +00:00
Dale Johannesen
84839daa59 Fix dbg value handling in tail merging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97938 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 05:38:13 +00:00
Douglas Gregor
1ddcf35b68 Revert r97917, which was causing Clang Debug self-host failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97932 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-08 02:58:37 +00:00
Jeffrey Yasskin
9467f0e3bd Roll r97906 forward again, without double-deleting CompileUnit::IndexTyDie. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97917 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-07 17:10:13 +00:00
Chris Lattner
acee647b13 Use Other as a sentinel instead of iAny. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-07 07:45:08 +00:00
Jeffrey Yasskin
8c42ca9374 _2_ gcc crashes, ah, ah, ah... 
(Rolling back r97906.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97909 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-07 07:16:49 +00:00
Jeffrey Yasskin
f7399bf929 Avoid leaking CompileUnits and DbgScopes from DwarfDebug. Leaks found by Valgrind! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97906 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-07 06:55:35 +00:00
Chris Lattner
98f15d27cd tidy up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97895 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-07 04:28:09 +00:00
Evan Cheng
6cc1aeaad2 Don't update physical register def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97861 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-06 01:14:19 +00:00
Dale Johannesen
06a26637da Add some new bits of debug info handling. No 
functional change yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97855 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-06 00:03:23 +00:00
Dan Gohman
0fa9d1d901 Reapply r97778 and r97779, enabled only for unsigned i64 to f64 
conversions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-06 00:00:55 +00:00
Charles Davis
314fef6127 Don't emit global symbols into the (__TEXT,__ustring) section on Darwin. This 
is a workaround for <rdar://problem/7672401/> (which I filed).

This let's us build Wine on Darwin, and it gets the Qt build there a little bit
further (so Doug says).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97845 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 22:28:45 +00:00
Jakob Stoklund Olesen
53e000bac3 Better handling of dead super registers in LiveVariables. We used to do this: 
CALL ... %RAX<imp-def>
   ... [not using %RAX]
   %EAX = ..., %RAX<imp-use, kill>
   RET %EAX<imp-use,kill>

Now we do this:

   CALL ... %RAX<imp-def, dead>
   ... [not using %RAX]
   %EAX = ...
   RET %EAX<imp-use,kill>

By not artificially keeping %RAX alive, we lower register pressure a bit.

The correct number of instructions for 2008-08-05-SpillerBug.ll is obviously
55, anybody can see that. Sheesh.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97838 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 21:49:17 +00:00
Jakob Stoklund Olesen
a76e816844 We don't really care about correct register liveness information after the 
post-ra scheduler has run. Disable the verifier checks that late in the game.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97837 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 21:49:13 +00:00
Jakob Stoklund Olesen
580bba2b0d Avoid creating bad PHI instructions when BR is being const-folded. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97836 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 21:49:10 +00:00