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8644 Commits

Author SHA1 Message Date
Evan Cheng
5cf9d23e4e Canonicalize -1 - x to ~x. 
Instcombine does this but apparently there are situations where this pattern will escape the optimizer and / or created by isel. Here is a case that's seen in JavaScriptCore:
  %t1 = sub i32 0, %a
  %t2 = add i32 %t1, -1
The dag combiner pattern: ((c1-A)+c2) -> (c1+c2)-A
will fold it to -1 - %a.

llvm-svn: 93773
 2010-01-18 21:38:44 +00:00
Bill Wendling
5678a9711b - Add a comment to the callback indicating that it's *extremely* not a good 
idea, but unfortunately necessary.
- Default to using 4-bytes for the LSDA pointer encoding to agree with the
  encoded value in the CIE.

llvm-svn: 93753
 2010-01-18 19:36:27 +00:00
Chris Lattner
86287085ba remove the MAI argument to MCExpr::print and switch overthing to use << when printing them. 
llvm-svn: 93699
 2010-01-18 00:37:40 +00:00
Chris Lattner
6f360c3c91 now that MCSymbol::print doesn't use it's MAI argument, we can 
remove it and change all the code that prints MCSymbols to use 
<< instead, which is much simpler and cleaner.

llvm-svn: 93695
 2010-01-17 21:43:43 +00:00
Chris Lattner
57ac0be2b5 now that mangler is in libtarget, it can use MCAsmInfo instead of clients 
having to pass various fields from it in.  Simplify.

llvm-svn: 93686
 2010-01-17 18:22:35 +00:00
Benjamin Kramer
77e20e0bed Switch some functions to take Twines, eliminate uses of StringExtras.h. 
llvm-svn: 93680
 2010-01-17 07:46:39 +00:00
Nate Begeman
04da97bd5e Add a note for the macho streamer and remove a used of the mangler from the soon to be defunct machowriter pass. 
llvm-svn: 93670
 2010-01-17 03:49:01 +00:00
Kenneth Uildriks
d6b30baf78 When checking for sret-demotion, it needs to use legal types. When using the return value of an sret-demoted call, it needs to use possibly illegal types that match the declared Type of the callee. 
llvm-svn: 93667
 2010-01-16 23:37:33 +00:00
Chris Lattner
51e8abe640 move the mangler into libtarget from vmcore. 
llvm-svn: 93664
 2010-01-16 21:57:06 +00:00
Chris Lattner
6efe5156eb reapply the mangler gutting patch. 
llvm-svn: 93656
 2010-01-16 21:08:46 +00:00
Chris Lattner
98ddc4b8b0 unbreak the build. 
llvm-svn: 93654
 2010-01-16 20:53:11 +00:00
Rafael Espindola
d6c021a8d7 Revert 93648. 
Mangler::getMangledName is used from lto
Mangler::setUseQuotes is used in the AsmPrinter
Mangler::setSymbolsCanStartWithDigit is used in the AsmPrinter

llvm-svn: 93652
 2010-01-16 20:27:59 +00:00
Chris Lattner
16324d20f6 Mangler::getMangledName is now dead, remove it and all the other stuff in Mangler that is now transitively dead. woo. 
llvm-svn: 93648
 2010-01-16 19:08:51 +00:00
Chris Lattner
04b7c11880 Change DIEObjectLabel to take an MCSymbol instead of std::string. 
llvm-svn: 93647
 2010-01-16 18:50:28 +00:00
Chris Lattner
31aea3db21 rename GetPrivateGlobalValueSymbolStub -> GetSymbolWithGlobalValueBase, 
and add an explicit ForcePrivate argument.

Switch FunctionEHFrameInfo to be MCSymbol based instead of string based.

llvm-svn: 93646
 2010-01-16 18:37:32 +00:00
Chris Lattner
31297eb826 eliminate uses of getMangledName from AsmPrinter.cpp, last up is 
dwarf emission which is going to be more invasive.

llvm-svn: 93645
 2010-01-16 18:17:26 +00:00
Devang Patel
ab80d29640 No need to use WeakVH here. 
llvm-svn: 93631
 2010-01-16 06:17:40 +00:00
Devang Patel
3bbca51dcd Replace DebugLocTuple with DILocation. 
llvm-svn: 93630
 2010-01-16 06:09:35 +00:00
Chris Lattner
a00f220023 remove a couple of actively incorrect uses of getMangledName. 
llvm-svn: 93627
 2010-01-16 02:16:09 +00:00
Bill Wendling
d78fcdd332 Retrying r91337: 
The CIE says that the LSDA point in the FDE section is an "sdata4". That's fine,
but we need it to actually be 4-bytes in the FDE for some platforms. Allow
individual platforms to decide for themselves.

llvm-svn: 93616
 2010-01-16 01:40:55 +00:00
Chris Lattner
8813339969 fix inverted conditional 
llvm-svn: 93614
 2010-01-16 01:37:14 +00:00
Chris Lattner
61a95137c9 CurrentFnName is now dead, remove it. 
llvm-svn: 93612
 2010-01-16 01:24:10 +00:00
Chris Lattner
bb21a20f24 remove the string form of printVisibility. 
llvm-svn: 93609
 2010-01-16 01:17:26 +00:00
Bob Wilson
a7043345ee Treat indirect branches specially only during pre-regalloc tail duplication, 
not during the later post-alloc tail duplication.

llvm-svn: 93600
 2010-01-16 00:42:25 +00:00
Bob Wilson
3386047bdb Run the pre-register allocation tail duplication pass by default. Remove 
the -pre-regalloc-taildup command-line option, and add a new
-disable-early-taildup option.

llvm-svn: 93597
 2010-01-16 00:29:50 +00:00
Chris Lattner
b1b91d11db supplement CurrentFnName with CurrentFnSym, which will eventually 
replace it.  Upgrade Alpha, Blackfin, and part of CellSPU to not
use mangler anymore.  CellSPU needs more invasive surgery.

llvm-svn: 93589
 2010-01-15 23:55:16 +00:00
Chris Lattner
5f4c482b72 add a version of AsmPrinter::printVisibility that takes an MCSymbol. 
llvm-svn: 93587
 2010-01-15 23:38:51 +00:00
Chris Lattner
e293db0c8a add another helper 
llvm-svn: 93577
 2010-01-15 23:25:11 +00:00
Chris Lattner
ea4d444561 add a AsmPrinter::GetGlobalValueSymbol and GetExternalSymbolSymbol 
helper method, use it to simplify some code.

llvm-svn: 93575
 2010-01-15 23:18:17 +00:00
Ted Kremenek
0e9c12f44a Update CMake build. 
llvm-svn: 93571
 2010-01-15 22:59:46 +00:00
Devang Patel
dfde8cf532 Add FIXME. 
llvm-svn: 93562
 2010-01-15 22:08:16 +00:00
Jakob Stoklund Olesen
65bc6159f6 Don't make changes to the MBB in MachineBasicBlock::canFallThrough(). 
This fixes the regression for -pre-regalloc-taildup in
MultiSource/Applications/lambda-0.1.3.

llvm-svn: 93541
 2010-01-15 20:00:12 +00:00
Jakob Stoklund Olesen
cf4c604899 Simplify logic. Any functional change is unintended. 
llvm-svn: 93540
 2010-01-15 19:59:57 +00:00
David Greene
d8faccbeab Add some debug routines to SelectionDAG to dump full DAGs. 
print/dumpWithDepth allows one to dump a DAG up to N levels deep.
dump/printWithFullDepth prints the whole DAG, subject to a depth limit
on 100 in the default case (to prevent infinite recursion).

Have CannotYetSelect to a dumpWithFullDepth so it is clearer exactly
what the non-matching DAG looks like.

llvm-svn: 93538
 2010-01-15 19:43:23 +00:00
Victor Hernandez
c1b5223e76 Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast). 
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.
It also strips old llvm.dbg.declare intrinsics that did not pass metadata as the first argument.

llvm-svn: 93531
 2010-01-15 19:04:09 +00:00
Nate Begeman
b6c8d75f62 Hook up llc's -filetype=obj to use MCStreamer if an MCCodeEmitter is available. 
Remove most of old Mach-O Writer support, it has been replaced by MCMachOStreamer

Further refactoring to completely remove MachOWriter and drive the object file
writer with the AsmPrinter MCInst/MCSection logic is forthcoming.

llvm-svn: 93527
 2010-01-15 18:51:18 +00:00
Victor Hernandez
97d7107d5e Revert r93504 because older uses of llvm.dbg.declare intrinsics need to be auto-upgraded 
llvm-svn: 93515
 2010-01-15 17:36:47 +00:00
Bob Wilson
b9a6da20e8 Change pre-regalloc tail duplication to only duplicate indirect branch blocks. 
The pre-regalloc pass caused some regressions in both compile time and
performance of the generated code, and it did not improve performance, except
for indirect branches.  I also moved the check for single-block loops to speed
up the common case when running the taildup pass before reg allocation.

llvm-svn: 93505
 2010-01-15 06:29:17 +00:00
Victor Hernandez
aee71b4e81 Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast). 
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.

llvm-svn: 93504
 2010-01-15 03:37:48 +00:00
Devang Patel
9c7b75ebb8 Do not use AT_specification die for static variables. It confuses gdb. 
llvm-svn: 93494
 2010-01-15 01:12:22 +00:00
Jim Grosbach
7239c4c92e fix 80-column violations 
llvm-svn: 93487
 2010-01-15 00:36:15 +00:00
Jim Grosbach
ed10ddd9c1 Fix 80 column violations and clean up whitespace 
llvm-svn: 93484
 2010-01-15 00:32:47 +00:00
Devang Patel
b41a4c332a Do not emit multiple AT_container_type attributes. 
We need to find a better way to emit this info.

llvm-svn: 93481
 2010-01-15 00:26:31 +00:00
Dale Johannesen
7b7109e16e Fix a comment. 
llvm-svn: 93463
 2010-01-14 21:50:17 +00:00
Jim Grosbach
fb10749b6d Add comment explaining the necessity of r93456 
llvm-svn: 93459
 2010-01-14 21:38:31 +00:00
Jim Grosbach
d3d283dc19 Dwarf EH prepare needs to be run after SjLj prepare. Otherwise, 
catch info can get misplaced when a selector ends up more than one block
removed from the parent invoke(s). This could happen when a landing pad is
shared by multiple invokes and is also a target of a normal edge from
elsewhere.

llvm-svn: 93456
 2010-01-14 21:22:16 +00:00
Dan Gohman
7c596d2b00 Fix a codegen abort seen in 483.xalancbmk. 
llvm-svn: 93417
 2010-01-14 03:08:49 +00:00
Evan Cheng
0fa1e2d063 Commit some changes I had managed to lose last night while refactoring the code. Avoid change use of PHI instructions because it's not legal to insert any instructions before them. 
This fixes PR6027.

llvm-svn: 93335
 2010-01-13 19:16:39 +00:00
Evan Cheng
2afc417122 Re-enable extension optimization pass. 
llvm-svn: 93313
 2010-01-13 08:45:40 +00:00
Evan Cheng
f6f274ef64 Add comment; refactor; avoid pulling in DT if it's not used. 
llvm-svn: 93306
 2010-01-13 07:59:13 +00:00