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Author SHA1 Message Date
Dan Gohman
7bd5379b8c When re-using an existing cast for a user, it's still necessary to call 
rememberInstruction so that future users of that user will be inserted
in the correct position. This fixes the Darwin selfhost.

llvm-svn: 94070
 2010-01-21 10:08:42 +00:00
Nick Lewycky
938b8b195c Fix a crasher trying to fold each element in a comparison between two vectors 
if one of the vectors didn't have elements (such as undef). Fixes PR 6096.

Fix an issue in the constant folder where fcmp (<2 x %ty>, <2 x %ty>) would
have <2 x i1> type if constant folding was successful and i1 type if it wasn't.
This exposed a related issue in the bitcode reader.

llvm-svn: 94069
 2010-01-21 07:03:21 +00:00
Chris Lattner
0ce1aa4aa6 remove a couple of asserts that use RTTI. 
llvm-svn: 94068
 2010-01-21 06:11:03 +00:00
Dan Gohman
45406404b1 Run the verifier after LSR, to help catch use-before-def errors before 
they reach codegen.

llvm-svn: 94066
 2010-01-21 03:51:36 +00:00
Dan Gohman
be34c35f32 Re-implement the main strength-reduction portion of LoopStrengthReduction. 
This new version is much more aggressive about doing "full" reduction in
cases where it reduces register pressure, and also more aggressive about
rewriting induction variables to count down (or up) to zero when doing so
reduces register pressure.

It currently uses fairly simplistic algorithms for finding reuse
opportunities, but it introduces a new framework allows it to combine
multiple strategies at once to form hybrid solutions, instead of doing
all full-reduction or all base+index.

llvm-svn: 94061
 2010-01-21 02:09:26 +00:00
Chris Lattner
309cca906a eliminate dynamic_cast from the pass manager. 
llvm-svn: 94060
 2010-01-21 02:07:07 +00:00
Eric Christopher
939ad8be86 Add strcpy_chk -> strcpy support for "don't know" object size 
answers.  This will update as object size checking gets better information.

llvm-svn: 94059
 2010-01-21 01:04:38 +00:00
Evan Cheng
6133019b90 Fix a minor issue in x86 load / store folding table. movups does an unaligned load so it doesn't require 16-byte alignment. 
llvm-svn: 94058
 2010-01-21 00:55:14 +00:00
Jim Grosbach
cf6e6e1c79 Make sure that landing pad entries in the EH call site table are in the proper 
order for SjLj style exception handling.

llvm-svn: 94055
 2010-01-21 00:43:30 +00:00
Sean Callanan
e9111e7172 Moved handling of inclusion from the AsmLexer to 
the AsmParser, breaking AsmLexer's dependence on
SourceMgr.

llvm-svn: 94054
 2010-01-21 00:19:58 +00:00
Chris Lattner
5c16b9815b simplify this code. 
llvm-svn: 94048
 2010-01-20 23:30:28 +00:00
Sean Callanan
52633cb655 Changed the AsmParser to handle error messages itself 
rather than passing them off to the AsmLexer to handle.
This means the AsmLexer no longer requires a SourceMgr
to do error handling.

llvm-svn: 94047
 2010-01-20 23:19:55 +00:00
Jim Grosbach
98eae84f2e SjLj EH introduces can introduce an additional edge to a landing pad and pad 
normalization needs to take this into account.

llvm-svn: 94046
 2010-01-20 23:03:55 +00:00
Sean Callanan
3c0fb5c7bb Promoted the reference to the SourceMgr from AsmLexer 
into AsmParser, in preparation for making AsmLexer
independent of the SourceMgr

llvm-svn: 94043
 2010-01-20 22:45:23 +00:00
Sean Callanan
cddf628d31 Modified MCAsmLexer to return error information upward 
rather than printing it locally, reducing its dependence
on SourceMgr.

llvm-svn: 94041
 2010-01-20 22:18:24 +00:00
Chris Lattner
0c9b35b319 eliminate FnStubInfo, using MachineModuleInfoMachO instead. 
this makes function stub emission determinstic.

llvm-svn: 94033
 2010-01-20 21:36:48 +00:00
Dale Johannesen
e6672a5bda make findDebugLoc a class method 
llvm-svn: 94032
 2010-01-20 21:36:02 +00:00
Chris Lattner
1faedfad24 split function stub printing out to its own function, 
no functionality change.

llvm-svn: 94030
 2010-01-20 21:19:44 +00:00
Chris Lattner
e170ca84e0 eliminate the GVStubs and HiddenGVStubs maps, and use 
MachineModuleInfoMachO instead.  This eliminates two sources
of nondeterministic output in the ppc backend, but function
stubs are still bad.

llvm-svn: 94029
 2010-01-20 21:16:14 +00:00
Chris Lattner
c7a4cc225b don't forget to initialize an instance variable! 
llvm-svn: 94021
 2010-01-20 20:48:59 +00:00
David Greene
80fdc554d0 When XDEBUG is enabled, check for SelectionDAG cycles at some key 
points.  This will help us find future problems like the one
described in PR6019.

llvm-svn: 94019
 2010-01-20 20:13:31 +00:00
Chris Lattner
6e37641eca adopt getAdjustedAnalysisPointer in a few more passes. 
llvm-svn: 94018
 2010-01-20 20:09:02 +00:00
Chris Lattner
14e5ce0aa4 adopt getAdjustedAnalysisPointer in two more passes. 
llvm-svn: 94017
 2010-01-20 19:53:32 +00:00
Chris Lattner
eea6867290 adopt getAdjustedAnalysisPointer in BasicCallGraph. 
llvm-svn: 94015
 2010-01-20 19:51:46 +00:00
Chris Lattner
56e3aa006f add some new methods to adjust this pointers. Not used yet. 
llvm-svn: 94013
 2010-01-20 19:26:14 +00:00
Chris Lattner
86ab039320 add a helper method. 
llvm-svn: 94012
 2010-01-20 19:25:45 +00:00
Chris Lattner
abaff06105 don't send null pointers through the constantexpr codepath unneededly. 
llvm-svn: 94010
 2010-01-20 17:57:50 +00:00
Chris Lattner
2e8baf1561 reduce redundant are's. 
llvm-svn: 94008
 2010-01-20 17:53:51 +00:00
Jakob Stoklund Olesen
ac14f3bf31 Move per-function inline threshold calculation to a method. 
No functional change except the forgotten test for
InlineLimit.getNumOccurrences() == 0 in the CurrentThreshold2 calculation.

llvm-svn: 94007
 2010-01-20 17:51:28 +00:00
Chris Lattner
ffc364d7e2 use getGlobalDirective(), don't hardcode .globl. PR6093 
llvm-svn: 94006
 2010-01-20 17:50:30 +00:00
David Greene
8831009b02 Fix an infinite recursion problem. dbgs() should return errs() in 
release mode.

llvm-svn: 94001
 2010-01-20 15:27:19 +00:00
Chris Lattner
abdec9bcc3 eliminate some uses of AsmPrinter::EmitIntXXX 
llvm-svn: 93996
 2010-01-20 07:41:15 +00:00
Victor Hernandez
871f27928b Backout r93990 
llvm-svn: 93995
 2010-01-20 07:37:49 +00:00
Chris Lattner
b619c47740 inline and radically simplify printDataDirective. It will eventually 
go completely away.

llvm-svn: 93994
 2010-01-20 07:33:29 +00:00
Chris Lattner
e4ac42e11e emit basic block labels with mcstreamer. 
llvm-svn: 93993
 2010-01-20 07:24:05 +00:00
Chris Lattner
d69a9cc334 emit integer and fp zeros as (e.g.) .byte 0 instead of .space 1, 
for tidiness.

llvm-svn: 93992
 2010-01-20 07:19:19 +00:00
Chris Lattner
3104fa4a71 signficant cleanups to EmitGlobalConstant (including streamerization 
of int initializers), change some methods to be static functions,
use raw_ostream::write_hex instead of a smallstring dance with 
APValue::toStringUnsigned(S, 16).

llvm-svn: 93991
 2010-01-20 07:11:32 +00:00
Victor Hernandez
78168a7fa6 Fix/strengthen verification of llvm.dbg.declare 
llvm-svn: 93990
 2010-01-20 06:57:02 +00:00
Victor Hernandez
50e7dcdcc2 Switch Elts from vector to SmallVector 
llvm-svn: 93989
 2010-01-20 06:56:16 +00:00
Chris Lattner
57908ea7db switch ConstantFP emission to use MCStreamer, significantly 
simplifying the code.

llvm-svn: 93988
 2010-01-20 06:53:37 +00:00
Chris Lattner
1d3b05933f make mcasmstreamer handle expanding 8 byte integer constants to 
4-byte constants if .quad isn't supported.  Switch a bunch of
methods used by the dwarf writer to use OutStreamer.EmitIntValue.

llvm-svn: 93987
 2010-01-20 06:45:39 +00:00
Chris Lattner
6ea74a85bb give createAsmStreamer an 'isLittleEndian' argument. 
llvm-svn: 93986
 2010-01-20 06:39:07 +00:00
Chris Lattner
f25a9e1265 revert 93934, removing the MCAsmInfo endianness bit. I can't 
stomache MCAsmInfo having this, and I found a better solution to
this layering issue.

llvm-svn: 93985
 2010-01-20 06:34:14 +00:00
Victor Hernandez
78e1b5625a Fix if/else brackets; getFunctionForValue() is to be called for non-metadata values 
llvm-svn: 93984
 2010-01-20 06:22:33 +00:00
Chandler Carruth
9129b5c2b9 Fix the conditions to unambiguously show the logic they represent. This is the 
logic enforced in the test case as well, so hopefully it is correct. Please
review Victor.

llvm-svn: 93980
 2010-01-20 06:01:02 +00:00
Victor Hernandez
d79e7e0e12 Map operands of all function-local metadata, not just metadata passed to llvm.dbg.declare intrinsics 
llvm-svn: 93979
 2010-01-20 05:49:59 +00:00
Victor Hernandez
b8ad556b09 Avoid unnecessary Elts array 
llvm-svn: 93978
 2010-01-20 05:44:11 +00:00
Victor Hernandez
d8a7839c7b Refactor common parts of MDNode::getFunction() and assertLocalFunction() into getFunctionForValue() 
llvm-svn: 93977
 2010-01-20 04:45:57 +00:00
Devang Patel
56de8ddd56 If a instruction belongs to another function (and not current function) as per debug info attached with the instruction then ignore the dangling lexical scope of this instruction. Such scopes are unreachable. 
llvm-svn: 93967
 2010-01-20 02:05:23 +00:00
David Greene
1908ff46da Add some asserts to check SelectionDAG problems earlier. 
llvm-svn: 93960
 2010-01-20 00:59:23 +00:00