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14134 Commits

Author SHA1 Message Date
Charles Davis
1084ac5bb1 Implement the rest of the SEH directive-parsing methods in the COFFAsmParser. 
Add a size alignment check to the .seh_stackalloc directive parser. Add a
more descriptive error message to the .seh_handler directive parser.

Add methods to the TargetAsmInfo struct in support of all this.

llvm-svn: 131992
 2011-05-24 20:06:30 +00:00
Devang Patel
0b44360610 Remove dead code. 
llvm-svn: 131974
 2011-05-24 18:27:52 +00:00
Charles Davis
3ac82d9bb2 Add a method to TargetRegisterInfo to get the register number that the Win64 EH 
scheme uses internally. Implement it for x86 (the only architecture that LLVM
supports for which this matters right now).

llvm-svn: 131969
 2011-05-24 16:57:53 +00:00
Cameron Zwarich
e425894eaf Clean up the lazy initialization of DIBuilder a bit. 
llvm-svn: 131956
 2011-05-24 06:00:08 +00:00
Jakob Stoklund Olesen
222e83f44b Work around code generation bug in Visual Studio 2010. 
See http://llvm.org/pr9976 for details.

llvm-svn: 131954
 2011-05-24 03:20:56 +00:00
Cameron Zwarich
462b5db500 Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when 
promoting allocas to SSA variables. Fixes <rdar://problem/9479036>.

llvm-svn: 131953
 2011-05-24 03:10:43 +00:00
Chris Lattner
5fd8380a35 add a helper method to get the byval alignment of an argument. 
llvm-svn: 131883
 2011-05-22 23:57:23 +00:00
Charles Davis
a4187a96c9 Add methods to parse the SEH directives to the COFFAsmParser. Implement some 
of them, particularly the ones that don't take arguments. Also implement
.seh_proc and .seh_handler.

llvm-svn: 131866
 2011-05-22 21:12:15 +00:00
Frits van Bommel
df58ece78a Add a parameter to ConstantFoldTerminator() that callers can use to ask it to also clean up the condition of any conditional terminator it folds to be unconditional, if that turns the condition into dead code. This just means it calls RecursivelyDeleteTriviallyDeadInstructions() in strategic spots. It defaults to the old behavior. 
I also changed -simplifycfg, -jump-threading and -codegenprepare to use this to produce slightly better code without any extra cleanup passes (AFAICT this was the only place in -simplifycfg where now-dead conditions of replaced terminators weren't being cleaned up). The only other user of this function is -sccp, but I didn't read that thoroughly enough to figure out whether it might be holding pointers to instructions that could be deleted by this.

llvm-svn: 131855
 2011-05-22 16:24:18 +00:00
Chris Lattner
b2b8de15d8 another typo 
llvm-svn: 131854
 2011-05-22 15:44:02 +00:00
Chris Lattner
ddafd147a2 fix comment typo 
llvm-svn: 131853
 2011-05-22 15:34:37 +00:00
Chris Lattner
1520c4f4f0 Fix some minor typos and grammar. 
llvm-svn: 131835
 2011-05-22 04:44:48 +00:00
Charles Davis
d74119d139 Implement emission of all Win64 exception tables. Make the COFF streamer emit 
these tables.

llvm-svn: 131833
 2011-05-22 04:15:07 +00:00
Charles Davis
c23700bb65 Make the COFF streamer emit unwind info when processing a .seh_handlerdata 
directive.

Implement emission of Win64 EH unwind info.

Pull in <cassert> in MCWin64EH.h so it can use the assert() macro.

llvm-svn: 131832
 2011-05-22 03:01:05 +00:00
Chris Lattner
69a52dd280 random comment cleanups. 
llvm-svn: 131829
 2011-05-22 00:50:53 +00:00
Chris Lattner
03d83a7b9b remove StandardPasses, it has been replaced with PassManagerBuilder 
llvm-svn: 131827
 2011-05-22 00:30:45 +00:00
Chris Lattner
6e81571c48 add support for LTO passes. 
llvm-svn: 131820
 2011-05-22 00:14:20 +00:00
Charles Davis
49f650f80b Include DataTypes.h from this header to get the uint*_t types. 
llvm-svn: 131817
 2011-05-22 00:05:26 +00:00
Charles Davis
53b696daee Allow access to the .pdata and .xdata sections through the TargetAsmInfo 
class.

llvm-svn: 131816
 2011-05-22 00:03:24 +00:00
Chris Lattner
03847f8199 add an extension point mechanism that allow plugins to add stuff to 
the pass manager.

llvm-svn: 131814
 2011-05-21 23:50:37 +00:00
Nick Lewycky
0539f44b9f Add CreateLifetimeStart and CreateLifetimeEnd to the IRBuilder, with plans to 
use these soon.

llvm-svn: 131812
 2011-05-21 23:14:36 +00:00
Chris Lattner
d2e2d612c0 add a new PassManagerBuilder class to replace StandardPasses.h 
llvm-svn: 131807
 2011-05-21 20:39:42 +00:00
Chris Lattner
777808dcaf add a copy ctor to TargetLibraryInfo. 
llvm-svn: 131806
 2011-05-21 20:09:13 +00:00
Eli Friedman
58beee1262 PR7952: Make isa<> use the same logic as cast<>, so that they both work 
consistently.

llvm-svn: 131803
 2011-05-21 19:13:10 +00:00
Charles Davis
7f9c007dce A handler for a function in the Win64 EH scheme can be both an unwind handler 
and an exception handler. Handle that case.

Also, add an 'Emitted' member to the MCWin64EHUnwindInfo struct. It will be
needed later.

llvm-svn: 131791
 2011-05-21 15:57:49 +00:00
Andrew Trick
9f867fd2dc Have Program::Wait return -2 for crashed and timeouts instead of embedding 
info in the error message. Per Dan's request.

llvm-svn: 131780
 2011-05-21 00:56:46 +00:00
Charles Davis
989cc73ef3 Add .pdata and .xdata sections to the COFF TLOF implementation. 
llvm-svn: 131763
 2011-05-20 22:13:55 +00:00
Argyrios Kyrtzidis
d58ffb7e7d Add asserts in StringRef to make sure we avoid undefined behavior: 
-strlen should not be called with NULL. Also guarantee that StringRef's Length is 0 if Data is NULL.
-memcmp should not be called with NULL (even if size is 0)

Patch by Matthieu Monrocq!

llvm-svn: 131747
 2011-05-20 19:24:12 +00:00
Andrew Trick
3352db291f indvars: Prototyping Sign/ZeroExtend elimination without canonical IVs. 
No functionality enabled by default. Use -disable-iv-rewrite.
Extended IVUsers to keep track of the phi that represents the users' IV.
Added the WidenIV transform to replace a narrow IV with a wide IV
by doing a one-for-one replacement of IV users instead of expanding the
SCEV expressions. [sz]exts are removed and truncs are inserted.

llvm-svn: 131744
 2011-05-20 18:25:42 +00:00
Benjamin Kramer
63248bc95b Remove noisy semicolons. 
llvm-svn: 131724
 2011-05-20 09:20:25 +00:00
Rafael Espindola
c03bb178a0 Misc code refactorings: 
* Remove unnecessary arguments now that ForceExpAbs is a method.
* Use ForceExpAbs in EmitAbsValue.

llvm-svn: 131683
 2011-05-19 21:40:34 +00:00
Charles Davis
300a470f45 Implement the EndProlog Win64 EH method on the base MCStreamer. 
llvm-svn: 131679
 2011-05-19 21:24:54 +00:00
Charles Davis
925eab3fd7 Implement the Win64 EH prolog instruction methods on the base MCStreamer. 
I had to change the API slightly to avoid overloading issues.

llvm-svn: 131666
 2011-05-19 19:35:55 +00:00
Eli Friedman
1cbb521f21 Fix up the new StandardPasses to run the same scalarrepl passes as the old one. 
llvm-svn: 131665
 2011-05-19 19:14:54 +00:00
Joerg Sonnenberger
5efd18ca60 Reapply 131644 including the missing header changes: 
Introduce -fatal-assembler-warnings for the obvious purpose

llvm-svn: 131655
 2011-05-19 18:00:13 +00:00
Charles Davis
bb99a68546 Turns out GAS does have Win64 EH directives. (It also supports WinCE EH.) Make 
ours compatible with GAS.

In retrospect, I should have emailed binutils about this earlier. Thanks to
Kai Tietz for pointing out that GAS already had SEH directives.

llvm-svn: 131652
 2011-05-19 17:46:39 +00:00
Charles Davis
e6942fd10b Implement the StartChained and EndChained Win64 EH methods on MCStreamer. 
llvm-svn: 131629
 2011-05-19 04:04:13 +00:00
Francois Pichet
8c22442446 Fix the MSVC build. 
Use a set of overloaded functions instead of template function for CreatePassFn.

It seems that template deduction for functions type that differs only by return type doesn't work with MSVC. 

llvm-svn: 131624
 2011-05-19 02:54:11 +00:00
Charles Davis
2940df3099 Implement the StartProc and EndProc Win64 EH methods on the base MCStreamer. 
Based largely on Rafael Espindola's work on CFI. Other methods soon to follow.

llvm-svn: 131623
 2011-05-19 02:49:00 +00:00
Charles Davis
ce8694c82b Fix build issues with headers, which I discovered by actually using them. 
Also, convert all the inline functions on UnwindInfo into methods.

llvm-svn: 131622
 2011-05-19 02:47:23 +00:00
Charles Davis
3322d4dee8 Add a header patterned after MCDwarf.h for supporting Win64 exception handling 
under MC.

llvm-svn: 131593
 2011-05-18 22:48:24 +00:00
David Chisnall
ef3c74e551 Some better type safety enforcement in the standard pass list, along with some small tidies and some fixes for bugs that the stricter checking found. 
llvm-svn: 131592
 2011-05-18 22:46:02 +00:00
Eli Friedman
e1ee02ff3d Third pass at allowing plugins to modify default passes. This time with a tweak so that we don't depend on an uninitialized argument. 
llvm-svn: 131581
 2011-05-18 21:40:04 +00:00
Devang Patel
f1e313af0f Set debug location while setting insertion point. 
llvm-svn: 131575
 2011-05-18 20:58:47 +00:00
Charles Davis
48ea9389dc Add some more Win64 EH directives: 
- StartChained and EndChained delimit a chained unwind area, which can contain
  additional operations to be undone if an exception occurs inside of it.
- UnwindOnly declares that this function doesn't handle any exceptions. If it
  has a handler, it's an unwind handler instead of an exception handler.
- Lsda declares the location and size of the LSDA, which in the Win64 EH
  scheme is kept inside the UNWIND_INFO struct. Windows itself ignores the
  LSDA; it's used by the Language-Specific Handler (the "Personality Function"
  from DWARF).

llvm-svn: 131572
 2011-05-18 20:54:10 +00:00
Eli Friedman
530e34b4af Revert r131556; it's breaking buildbots/clang tests. 
llvm-svn: 131567
 2011-05-18 20:39:27 +00:00
David Chisnall
b2d7afdada Second pass at allowing plugins to modify default passes. This time without bonus inter-library dependencies. 
llvm-svn: 131556
 2011-05-18 19:00:41 +00:00
Duncan Sands
d3292b9f1e Revert commit 131534 since it seems to have broken several buildbots. 
Original log entry:
Refactor getActionType and getTypeToTransformTo ; place all of the 'decision'
code in one place.

llvm-svn: 131536
 2011-05-18 14:57:56 +00:00
Nadav Rotem
b7d689c706 Refactor getActionType and getTypeToTransformTo ; place all of the 'decision' 
code in one place.

llvm-svn: 131534
 2011-05-18 12:26:38 +00:00
Charles Davis
81fa5ec5c3 While thinking about how to know where the functions' boundaries are for 
the purposes of the Win64 EH tables, I realized we had no way to tell where
the function ends. (MASM bounds functions with PROC and ENDP keywords.)
Add a directive to delimit the end of the function, and rename the 'frame'
directive to more accurately reflect its duality with the new directive.

llvm-svn: 131522
 2011-05-18 04:47:22 +00:00