Commit Graph

14218 Commits

Author SHA1 Message Date
Charles Davis
645aef1480 Treat Win64 EH as a DWARF EH scheme. For GCC-style exceptions, the layout of
the handler's data area is similar to a DWARF-format LSDA. (It is, in fact,
a 32-bit pointer to the personality routine followed by the DWARF LSDA.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132532 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-03 05:09:12 +00:00
Eric Christopher
100c833416 Have LowerOperandForConstraint handle multiple character constraints.
Part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132510 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02 23:16:42 +00:00
Jakob Stoklund Olesen
f462e3fac7 Make it possible to have unallocatable register classes.
Some register classes are only used for instruction operand constraints.
They should never be used for virtual registers. Previously, those
register classes were given an empty allocation order, but now you can
say 'let isAllocatable=0' in the register class definition.

TableGen calculates if a register is part of any allocatable register
class, and makes that information available in TargetRegisterDesc::inAllocatableClass.

The goal here is to eliminate use cases for overriding allocation_order_*
methods.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132508 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02 23:07:20 +00:00
Devang Patel
ee1f87881b Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132488 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02 21:31:00 +00:00
Rafael Espindola
cde4ce411b Don't hardcode the %reg format in the streamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132451 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-02 02:34:55 +00:00
Chad Rosier
11772e093f Typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132437 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 23:32:40 +00:00
Benjamin Kramer
0be9f5dde4 Initialize IssueWidth to zero.
Fixes valgrind errors in the CellSPU backend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132405 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 17:19:08 +00:00
Jakob Stoklund Olesen
1f9a09c614 Fix PR10059 and future variations by handling all register subclasses.
Add TargetRegisterInfo::hasSubClassEq and use it to check for compatible
register classes instead of trying to list all register classes in
X86's getLoadStoreRegOpcode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132398 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 15:32:10 +00:00
Joerg Sonnenberger
dd137903e4 Add new -d option to tblgen. It writes a make(1)-style dependency file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132395 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 13:10:15 +00:00
Nadav Rotem
b6fbec3a54 This patch is another step in the direction of adding vector select. In this
patch we add a flag to enable a new type legalization decision - to promote
integer elements in vectors. Currently, the rest of the codegen does not support
this kind of legalization.  This flag will be removed when the transition is
complete.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132394 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 12:51:46 +00:00
Stuart Hastings
4fd0dee3bf FGETSIGN support for x86, using movmskps/pd. Will be enabled with a
patch to TargetLowering.cpp.  rdar://problem/5660695


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132388 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-01 04:39:42 +00:00
Eli Friedman
69388e5a4a llvm.memcpy.* has two distinct associated address spaces; the source address space, and the destination address space. Fix up the interface on MemIntrinsic and MemTransferInst to make this clear, and fix InstructionDereferencesPointer in LazyValueInfo.cpp to use the interface properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132356 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-31 20:40:16 +00:00
Richard Osborne
a9b08aa25e Fix 80 column violations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132341 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-31 16:30:33 +00:00
Richard Osborne
9497466190 Add XCore intrinsic for crc8.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132340 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-31 16:24:49 +00:00
Richard Osborne
7736c37c14 Add XCore intrinsic for crc32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132336 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-31 14:47:36 +00:00
Argyrios Kyrtzidis
74ee8ace0c Introduce PackedVector, useful for storing a vector of values using a specific number of bits for each
value. Both signed and unsigned types can be used, e.g

   PackedVector<signed, 2> vec;

will create a vector accepting values -2, -1, 0, 1. Any other value will hit an assertion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132325 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-31 03:53:41 +00:00
Rafael Espindola
6e032942cf Use the dwarf->llvm mapping to print register names in the cfi
directives.

Fixes PR9826.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132317 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-30 20:20:15 +00:00
Rafael Espindola
7a067cc6e0 Introduce the DwarfRegAlias class for declaring that two registers have the
same dwarf number. This will be used for creating a dwarf number to register
mapping.

The only case that needs this so far is the XMM/YMM registers that unfortunately
do have the same numbers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132314 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-30 17:49:59 +00:00
John McCall
fe754ab90a ...this is not a good commit day for me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132294 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-29 19:44:55 +00:00
John McCall
832a9d1a76 On Darwin ARM, set the UNWIND_RESUME libcall to _Unwind_SjLj_Resume.
This is important for the correct lowering of unwind instructions
(which doesn't matter at all) and llvm.eh.resume calls (which does).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132291 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-29 19:39:04 +00:00
Nadav Rotem
b6aacae941 Refactor the type legalizer. Switch TargetLowering to a new enum - LegalizeTypeAction.
This patch does not change the behavior of the type legalizer. The codegen
produces the same code.
This infrastructural change is needed in order to enable complex decisions
for vector types (needed by the vector-select patch).




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132263 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28 17:57:14 +00:00
John McCall
bd0fa4c00d Change how tblgen generates attributes for intrinsics to use a single
switch.  With this newfound organization, teach tblgen how not to give
all intrinsics the 'nounwind' attribute.  Introduce a new intrinsic,
llvm.eh.resume, which does not have this attribute.  Documentation and uses
to follow.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132252 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28 06:31:34 +00:00
Charles Davis
f46337004a When generating code for Win64 EH, emit StartProc and EndProc directives.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132250 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28 04:21:04 +00:00
Bruno Cardoso Lopes
a0112d0c39 Add support for ARM ldrexd/strexd intrinsics. They both use i32 register pairs
to load/store i64 values. Since there's no current support to explicitly
declare such restrictions, implement it by using specific hardcoded register
pairs during isel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132248 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-28 04:07:29 +00:00
Charles Davis
d652b1368b Stub out support for Win64-style exceptions. Note that this is merely using
the Win64 EH mechanism to implement GCC-style exceptions. LLVM supports
hardly anything else at this point!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132234 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 23:47:32 +00:00
Rafael Espindola
5b23b7fe31 Make size computation less brittle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132222 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 22:05:41 +00:00
Charles Davis
88c816453f Add the suffix to the Win64 EH data sections' names if given. Add a test for
this. XFAIL'd, because the COFF AsmParser can't handle .section yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132220 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 21:38:47 +00:00
Nadav Rotem
2d6dcb34b7 Refactor getActionType and getTypeToTransformTo ; place all of the 'decision'
code in one place. Re-apply 131534 and fix the multi-step promotion of integers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132217 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 21:03:13 +00:00
Charles Davis
7b06b7357a Add a parameter to the Win64 EH section getters to get a section with a
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but
I'll get to it in the next patch.

Fix up all callers of the affected functions. Make them pass said suffix to
the function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132205 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 19:09:24 +00:00
Charles Davis
c4cbf9b6aa Start keeping track of where the various unwind instructions are in the prolog.
Use them to calculate the offset inside the prolog. Emit this value when
emitting the unwind codes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132177 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-27 03:25:01 +00:00
Chad Rosier
62660310d9 Renamed llvm.x86.sse42.crc32 intrinsics; crc64 doesn't exist.
crc32.[8|16|32] have been renamed to .crc32.32.[8|16|32] and
crc64.[8|16|32] have been renamed to .crc32.64.[8|64].




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132163 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26 23:13:19 +00:00
Eric Christopher
0958870a08 Comment cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132162 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26 22:54:27 +00:00
Charles Davis
329cf66e84 Fix definitions of UOP_SaveXMM128, UOP_SaveXMM128Big, and UOP_PushMachFrame
to match Microsoft's definitions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26 05:24:15 +00:00
Charles Davis
ca93138e11 Test .seh_startchained and .seh_endchained parsing.
Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with
chained unwind areas exposed by the test that were related to this.

The ChainedParent field had the wrong address, because when the chained unwind
info was added, the addresses shifted around. Now we store the pointers to the
structures, which are now allocated from the MC heap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132106 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-26 02:45:47 +00:00
Charles Davis
410ef2b263 Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with
them.

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132084 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25 21:43:45 +00:00
Rafael Espindola
52f6a4de95 Fix some issues Duncan found in the previous commit.
I kept the reference to the ABI since that is the common case. The
-fno-asynchronous-unwind-tables option is a user controlled way of breaking
the ABI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132053 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25 12:54:08 +00:00
Frits van Bommel
6cd71c6292 Fix warning in the CMake build about redefining LLVM_PATH_XDOT_PY by making sure both definitions are identical. This used to produce warnings like
In file included from .../llvm/trunk/tools/lto/LTOCodeGenerator.cpp:45:
In file included from .../llvm/trunk/include/llvm/Support/system_error.h:225:
.../include/llvm/Config/config.h:591:9: warning: 'LLVM_PATH_XDOT_PY' macro redefined
#define LLVM_PATH_XDOT_PY ".../bin/xdot.py"
        ^
.../include/llvm/Config/llvm-config.h:98:9: note: previous definition is here
#define LLVM_PATH_XDOT_PY ""
        ^
1 warning generated.

(Paths edited for clarity)

Note: This only affected people who had xdot.py installed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132050 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25 06:32:23 +00:00
Rafael Espindola
fc2bb8c444 Replace the -unwind-tables option with a per function flag. This is more
LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132033 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-25 03:44:17 +00:00
Charles Davis
3b32d0240c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131992 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 20:06:30 +00:00
Devang Patel
8ec0c1c07b Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131974 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 18:27:52 +00:00
Charles Davis
6b918b8466 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131969 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 16:57:53 +00:00
Cameron Zwarich
13a16083ab Clean up the lazy initialization of DIBuilder a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131956 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 06:00:08 +00:00
Jakob Stoklund Olesen
dfa178bc2a Work around code generation bug in Visual Studio 2010.
See http://llvm.org/pr9976 for details.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131954 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 03:20:56 +00:00
Cameron Zwarich
c827939046 Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when
promoting allocas to SSA variables. Fixes <rdar://problem/9479036>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-24 03:10:43 +00:00
Chris Lattner
ae441cc33c add a helper method to get the byval alignment of an argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131883 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 23:57:23 +00:00
Charles Davis
fbc539ff37 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131866 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 21:12:15 +00:00
Frits van Bommel
5649ba70fb 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 16:24:18 +00:00
Chris Lattner
8480aba5ec another typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 15:44:02 +00:00
Chris Lattner
947f0a8efa fix comment typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 15:34:37 +00:00
Chris Lattner
1a55c419a6 Fix some minor typos and grammar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131835 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-22 04:44:48 +00:00