77e0610d7c
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
65816ac54d
Revert r131556; it's breaking buildbots/clang tests.
...
llvm-svn: 131567
2011-05-18 20:39:27 +00:00
13c90786e1
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
3d9407f4eb
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
c5c27ede55
Refactor getActionType and getTypeToTransformTo ; place all of the 'decision'
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code in one place.
llvm-svn: 131534
2011-05-18 12:26:38 +00:00
384041d0dc
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
0671ba8448
Conditionalize the format of the GCOV files by target type. Darwin uses the 4.2
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format.
llvm-svn: 131503
2011-05-17 23:05:13 +00:00
4f51873f22
Frame indices are signed. Update MachineOperand methods accordingly.
...
llvm-svn: 131475
2011-05-17 18:29:21 +00:00
4edf17d91f
Teach LiveInterval::isZeroLength about null SlotIndexes.
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When instructions are deleted, they leave tombstone SlotIndex entries.
The isZeroLength method should ignore these null indexes.
This causes RABasic to sometimes spill a callee-saved register in the
abi-isel.ll test, so don't run that test with -regalloc=basic. Prioritizing
register allocation according to spill weight can cause more registers to be
used.
llvm-svn: 131436
2011-05-16 23:50:05 +00:00
d282f46c6b
Delete unused variables.
...
llvm-svn: 131430
2011-05-16 22:19:54 +00:00
2701815ed8
Add a method I forgot in the last commit. Don't worry, this one passed
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self-host :).
llvm-svn: 131421
2011-05-16 21:13:58 +00:00
a4d4a0162d
Make fast-isel work correctly s/uadd.with.overflow intrinsics.
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llvm-svn: 131420
2011-05-16 21:06:17 +00:00
9ac944774f
Basic fast-isel of extractvalue. Not too helpful on its own, given the IR clang generates for cases like this, but it should become more useful soon.
...
llvm-svn: 131417
2011-05-16 20:27:46 +00:00
e90c1cb221
sets bit 0 of the function address of thumb function in .symtab
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("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)
Patch by Koan-Sin Tan!
llvm-svn: 131406
2011-05-16 16:17:21 +00:00
56cf054a35
Remove redundant template partial specilization.
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llvm-svn: 131402
2011-05-16 12:42:22 +00:00
2050af838d
Don't do tail calls in a function that call setjmp. The stack might be
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corrupted when setjmp returns again.
llvm-svn: 131399
2011-05-16 03:05:33 +00:00
af18d07ed6
Add stub methods to MCStreamer for emitting Win64 exception-handling
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information.
llvm-svn: 131382
2011-05-15 17:20:01 +00:00
757aa983dd
Get rid of extern "C" from the Win64 EH header.
...
llvm-svn: 131381
2011-05-15 17:09:26 +00:00
215b92d24b
Add a header containing definitions used to implement Win64 exception handling.
...
llvm-svn: 131380
2011-05-15 14:42:22 +00:00
0db2654023
Declare this function here so that it doesn't get C++ mangling.
...
llvm-svn: 131379
2011-05-15 07:20:34 +00:00
8a2548f6e0
Add an operator+= for appending StringRefs onto std::strings.
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Previously this pattern would be compiled using an implicit conversion
to std::string.
llvm-svn: 131325
2011-05-13 23:58:45 +00:00
8418fdcd59
ExecutionEngine: push TargetMachine creation into clients (v2)
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In particular, into EngineBuilder. This should only impact
the private API between the EE and EB classes, not external
clients, since JITCtor and MCJITCtor are both protected members.
llvm-svn: 131317
2011-05-13 21:51:29 +00:00
1756faa472
ExecutionEngine: fix JIT/MCJIT selectTarget() duplication (v2)
...
This prepares for making JITCtor/MCJITCtor take a
TargetMachine* directly from clients like EngineBuilder.
llvm-svn: 131316
2011-05-13 21:36:16 +00:00
e53b7d1a11
Make codegen able to handle values of empty types. This is one way
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to fix PR9900. I will keep it open until sable is able to comment on it.
llvm-svn: 131294
2011-05-13 15:18:06 +00:00
7e11f9e26d
Fix a source of non determinism in FindUsedTypes, use a SetVector instead of a
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set.
rdar://9423996
llvm-svn: 131283
2011-05-13 05:20:42 +00:00
12419aee7a
Doug convinced me that DW_AT_APPLE_objc_complete_type is more appropriate name.
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s/DW_AT_APPLE_objc_class_extension/DW_AT_APPLE_objc_complete_type/g
llvm-svn: 131244
2011-05-12 21:29:42 +00:00
2409e7843b
Let Objective-C front-end identify class extension, in dwarf output, using an attribute DW_AT_APPLE_objc_class_extension.
...
llvm-svn: 131238
2011-05-12 19:06:16 +00:00
cfdf33904b
Re-commit 131172 with fix. MachineInstr identity checks should check dead
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markers. In some cases a register def is dead on one path, but not on
another.
This is passing Clang self-hosting.
llvm-svn: 131214
2011-05-12 00:56:58 +00:00
55aeb55aa3
Bugpoint support for miscompilations that result in a crash.
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This change allows bugpoint to pinpoint the "opt" pass and bitcode
segment responsible for a crash caused by miscompilation. At least it
works well for me now, without having to create any custom execution
wrappers.
llvm-svn: 131186
2011-05-11 16:31:24 +00:00
50117f8186
Give the 'eh.sjlj.dispatchsetup' intrinsic call the value coming from the setjmp
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intrinsic call. This prevents it from being reordered so that it appears
*before* the setjmp intrinsic (thus making it completely useless).
<rdar://problem/9409683>
llvm-svn: 131174
2011-05-11 01:11:55 +00:00
e2b889be65
Fix comment.
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llvm-svn: 131173
2011-05-11 01:08:39 +00:00
e09457b02b
Revert r131155 for now. It makes VMCore depend on Analysis and Transforms
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headers.
llvm-svn: 131159
2011-05-10 22:16:06 +00:00
c2fcb4df5e
Add support for plugins add passes to the default set of passes. The standard set of passes used by front ends can now be modified by LLVM plugins, without needing to modify any front ends.
...
Still to do:
- Allow replacing / removing passes (infrastructure there, just needs an infrastructure exposed)
- Defining sets of passes to be added or removed as a group
- Extending the support to allow user-defined groups of optimisations
- Allow plugins to be specified for loading automatically (e.g. from plugins.conf or some similar mechanism)
Reviewed by Nick Lewycky.
llvm-svn: 131155
2011-05-10 21:36:48 +00:00
2fe0ee1ce2
Rename DwarfRequiresRelocationForStmtList to
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DwarfRequiresRelocationForSectionOffset as this is not specific to StmtList.
llvm-svn: 131148
2011-05-10 20:35:05 +00:00
fdc3e6fab6
Use .cfi_sections to put the unwind info in .debug_frame when possible. With
...
this clang will use .debug_frame in, for example,
clang -g -c -m32 test.c
This matches gcc's behaviour. It looks like .debug_frame is a bit bigger
than .eh_frame, but has the big advantage of not being allocated.
llvm-svn: 131140
2011-05-10 18:39:09 +00:00
1ecb12fc57
Add support for producing .deubg_frame sections.
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llvm-svn: 131121
2011-05-10 03:54:12 +00:00
b6089d6cac
Factor some code into a new EmitFrames method.
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llvm-svn: 131119
2011-05-10 03:14:15 +00:00
74b101f3e3
Parsing and plumbing for .cfi_sections.
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llvm-svn: 131117
2011-05-10 01:10:18 +00:00
0daf687e1d
Change a few std::maps to DenseMaps.
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llvm-svn: 131088
2011-05-09 18:44:09 +00:00
ab39c63538
Don't force relaxation of AdvanceLoc instructions on OS X. gdb is happy with
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the smaller encoding and this cuts 270336 bytes from a release version of
clang and 1246272 bytes from a debug build.
llvm-svn: 131067
2011-05-08 14:35:21 +00:00
aa2637343c
PR9869: Add explicit destructor declarations to Operator subclasses, to allow
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compiling Operator.h with gcc 4.6 in C++0x mode.
llvm-svn: 131062
2011-05-08 01:59:22 +00:00
6dec2aa9b4
Fix comments per Duncan's review.
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llvm-svn: 131055
2011-05-07 19:23:14 +00:00
58799a35e5
Revert ExecutionEngine patches, they either failed to build or broke unit tests.
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Please ensure the build is clean and tests are passing when recommitting.
llvm-svn: 131044
2011-05-07 03:12:54 +00:00
bcabcdcedd
Switch Darwin to the generic CIE/FDE printer.
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llvm-svn: 131031
2011-05-06 22:29:04 +00:00
ab6bd20da9
ExecutionEngine: push TargetMachine creation into clients
...
In particular, into EngineBuilder. This should only impact
the private API between the EE and EB classes, not external
clients, since JITCtor and MCJITCtor are both protected members.
llvm-svn: 131026
2011-05-06 22:06:22 +00:00
fed7f0b3a0
ExecutionEngine: fix JIT/MCJIT selectTarget() duplication
...
This prepares for making JITCtor/MCJITCtor take a
TargetMachine* directly from clients like EngineBuilder.
llvm-svn: 131025
2011-05-06 22:05:43 +00:00
2518f8376d
Make the logic for determining function alignment more explicit. No functionality change.
...
llvm-svn: 131012
2011-05-06 20:34:06 +00:00
6e4fa20efb
Yet more dead code.
...
llvm-svn: 130988
2011-05-06 15:31:55 +00:00
d06c2c1b81
Update comments.
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llvm-svn: 130987
2011-05-06 15:28:56 +00:00
4bfa978ca5
More dead code elimination.
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llvm-svn: 130985
2011-05-06 15:22:26 +00:00
a716096677
Dead code elimination.
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llvm-svn: 130984
2011-05-06 14:56:22 +00:00
ec0a3a0bbf
Remove the DwarfTable enum.
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llvm-svn: 130959
2011-05-05 22:14:31 +00:00
d58fe3c55e
Fix typo. No functional change.
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llvm-svn: 130949
2011-05-05 21:27:14 +00:00
68b6b0efb0
Allow FastISel of three-register-operand instructions.
...
llvm-svn: 130934
2011-05-05 17:59:04 +00:00
cd5afc5feb
Minor change: Fix the typo in RegionPass.h and RegionPass.cpp.
...
llvm-svn: 130920
2011-05-05 13:59:38 +00:00
a48b1375df
Remove a flag that would set the ".eh" symbol as .globl. MachO was the only one
...
who used this flag, and it now emits CFI and doesn't emit this anymore. All
other targets left this flag "false".
<rdar://problem/8486371>
llvm-svn: 130918
2011-05-05 06:49:15 +00:00
fdc5d84ba3
llvmc: Make 'true' and 'false' instances of a 'Bool' class.
...
llvm-svn: 130915
2011-05-05 04:25:03 +00:00
37d44bdd92
Add explicit 'unregister' method to CrashRecoveryConextCleanupRegistrar.
...
llvm-svn: 130885
2011-05-04 23:26:59 +00:00
1fb95c996b
If builder is initialized using an instruction as insertion point, then use the instruction's debug location as current debug location.
...
llvm-svn: 130874
2011-05-04 21:57:22 +00:00
a75589171a
Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, but
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it is both inefficient and unexpected by dwarfdump. Change to
a DW_FORM_data4.
While in here, change the predicate name to reflect that the position
is not really absolute (it is an offset), just that the linker needs a
relocation.
llvm-svn: 130846
2011-05-04 17:44:06 +00:00
3d57441e56
Remove dead intrinsics.
...
llvm-svn: 130831
2011-05-04 02:40:54 +00:00
0a9c1246d7
Implement some basic simplifications involving min/max, for example
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max(a,b) >= a -> true. According to my super-optimizer, these are
by far the most common simplifications (of the -instsimplify kind)
that occur in the testsuite and aren't caught by -std-compile-opts.
llvm-svn: 130780
2011-05-03 19:53:10 +00:00
168c9005b5
Add a few ARM coprocessor intrinsics. Testcases included
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llvm-svn: 130763
2011-05-03 17:29:22 +00:00
600c8a2391
Fix a comment.
...
llvm-svn: 130761
2011-05-03 17:22:56 +00:00
6136e94897
Add an unfolded offset field to LSR's Formula record. This is used to
...
model constants which can be added to base registers via add-immediate
instructions which don't require an additional register to materialize
the immediate.
llvm-svn: 130743
2011-05-03 00:46:49 +00:00
d47ba853fc
Forgot to commit the changes to this file.
...
llvm-svn: 130695
2011-05-02 16:34:19 +00:00
5e9f05c2b8
Remove an unused variable in NDEBUG (found with -Wunused-variable).
...
llvm-svn: 130688
2011-05-02 05:49:01 +00:00
55f1e202a8
Add a SlotIndexes::insertMachineInstrInMaps to insert the instruction after any null indexes.
...
This makes a difference if a live interval is referring to a deleted
instruction. It can be important to insert an instruction before or after a
deleted instruction to avoid interference.
llvm-svn: 130686
2011-05-02 05:29:56 +00:00
23f61a09af
enhance memcpyopt to obey -fno-builtin and friends. This addresses a
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problem reported on cfe-dev.
llvm-svn: 130661
2011-05-01 18:27:11 +00:00
4471f82e91
Windows/DynamicLibrary.inc: Clean up ELM_Callback. We may check the decl instead of the versions of individual libraries.
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autoconf: Add checking ELM_Callback decl for mingw32 and mingw-w64.
cmake/config-ix.cmake: Add checking ELM_Callback decl for win32.
llvm-svn: 130657
2011-05-01 13:29:49 +00:00
750cb61553
GCC uses a different encoding of pointers in the FDE when using
...
-fno-dwarf2-cfi-asm. Implement the same behavior.
llvm-svn: 130637
2011-05-01 04:49:54 +00:00
fd05785324
Simplify the handling of pcrel relocations on ELF. Now we do the right thing
...
for all symbol differences and can drop the old EmitPCRelSymbolValue
method.
This also make getExprForFDESymbol on ELF equal to the one on MachO, and it
can be made non-virtual.
llvm-svn: 130634
2011-05-01 03:50:49 +00:00
ec9b4a6b8b
Avoid using stale entries form the sibling value map.
...
This could happen when trying to use a value that had been eliminated after dead
code elimination and folding loads.
llvm-svn: 130597
2011-04-30 06:42:21 +00:00
a3181d12c6
Add all the plumbing needed for MC to expand cfi to the old tables in
...
the final assembly. It is the same technique used when targeting
assemblers that don't support .loc.
llvm-svn: 130587
2011-04-30 03:44:37 +00:00
1d1eced025
Implement MCAsmStreamer::EmitDwarfAdvanceFrameAddr.
...
llvm-svn: 130585
2011-04-30 03:21:04 +00:00
a8e7411c74
Assing line number info to new PHIs created by SSA updater.
...
llvm-svn: 130551
2011-04-29 22:28:59 +00:00
dc3e4cc5ed
MCExpr: Add FindAssociatedSection, which attempts to mirror the 'as' semantics
...
that associate sections with expressions.
llvm-svn: 130517
2011-04-29 18:00:03 +00:00
b7a012a282
Factor some code to needsCFIMoves. Avoid printing moves when we don't have to.
...
llvm-svn: 130501
2011-04-29 14:14:06 +00:00
6d6cb40269
add a missing operator that caused us to have to use (*MIB).foo everywhere.
...
llvm-svn: 130473
2011-04-29 05:24:07 +00:00
7c7151512c
Add an alternative implementation of CIE and FDE emission that outputs them
...
in the same order as the one in CodeGen.
llvm-svn: 130471
2011-04-29 02:42:28 +00:00
6bd6a70837
Add the getExprForFDESymbol method that responsible for computing the
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expressions used in the FDE to refer to symbols.
llvm-svn: 130437
2011-04-28 21:04:39 +00:00
e203bbb47e
Add MemoryBuffer::getBufferKind() to report whether a memory buffer uses malloc'ed or mmap'ed memory. This is for performance analysis.
...
llvm-svn: 130432
2011-04-28 20:34:18 +00:00
367342e209
Remove bounded StringRef::compare() since nothing but Clang SA was using it and it is just as easy to use StringRef::substr() preceding StringRef::compare() to achieve the same thing.
...
llvm-svn: 130430
2011-04-28 20:20:12 +00:00
c5dac4df2e
Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it when
...
converting the symbol passed to .cfi_personality into bytes is the file.
llvm-svn: 130400
2011-04-28 16:09:09 +00:00
349c3298da
Mark the EH symbol global or weak if the corresponding function is.
...
llvm-svn: 130397
2011-04-28 12:50:37 +00:00
07ef11112e
Fix typos in comments.
...
llvm-svn: 130396
2011-04-28 09:12:47 +00:00
0c2bef1716
Fix more -Wnon-pod-memset warnings.
...
llvm-svn: 130392
2011-04-28 08:17:08 +00:00
827a270a2a
teach GVN to widen integer loads when they are overaligned, when doing an
...
wider load would allow elimination of subsequent loads, and when the wider
load is still a native integer type. This eliminates a ton of loads on
various benchmarks involving struct fields, though it is somewhat hobbled
by clang not being very aggressive about field alignment.
This is yet another step along the way towards resolving PR6627.
llvm-svn: 130390
2011-04-28 07:29:08 +00:00
a98cd22d96
Let the immediate leaf pattern take transforms and switch the signed
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immediate patterns in arm to using the pattern.
Handles rdar://9299434
llvm-svn: 130386
2011-04-28 05:49:04 +00:00
2901731553
Add utility method to DenseMap to return the amount of memory used for its buckets.
...
llvm-svn: 130382
2011-04-28 04:52:57 +00:00
2eeee8cfef
Add a small temporary hack for producing identical eh_frame sections on OS X.
...
This removes one of the main advantages of moving eh_frame to MC, but
makes the transition a lot easier to debug (run md5).
llvm-svn: 130379
2011-04-28 04:04:14 +00:00
96b07932a3
Forward isFunctionEHFrameSymbolPrivate. If it is false, produce the foo.eh
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symbols.
llvm-svn: 130375
2011-04-28 02:46:42 +00:00
3e021533cd
Teach dwarf writer to handle complex address expression for .debug_loc entries.
...
This fixes clang generated blocks' variables' debug info.
Radar 9279956.
llvm-svn: 130373
2011-04-28 02:22:40 +00:00
22e6c10256
silence some -Wnon-pod-memset warnings, since std::pair is not POD.
...
llvm-svn: 130364
2011-04-28 00:55:53 +00:00
ce83fc3463
Remove unnecessary argument.
...
llvm-svn: 130343
2011-04-27 23:17:57 +00:00
08704349da
Rename getPersonalityPICSymbol to getCFIPersonalitySymbol, document it, and
...
give it a bit more responsibility. Also implement it for MachO.
If hacked to use cfi, 32 bit MachO will produce
.cfi_personality 155, L___gxx_personality_v0$non_lazy_ptr
and 64 bit will produce
.cfi_presonality ___gxx_personality_v0
The general idea is that .cfi_personality gets passed the final symbol. It is
up to codegen to produce it if using indirect representation (like 32 bit
MachO), but it is up to MC to decide which relocations to create.
llvm-svn: 130341
2011-04-27 23:08:15 +00:00
406c471b69
Make the fast-isel code for literal 0.0 a bit shorter/faster, since 0.0 is common. rdar://problem/9303592 .
...
llvm-svn: 130338
2011-04-27 22:41:55 +00:00
121d27e9e4
Remove unused function.
...
llvm-svn: 130337
2011-04-27 22:21:02 +00:00
e3745fdcf3
Revert r130178. It turned out to be not the optimal path to emit complex location expressions.
...
llvm-svn: 130326
2011-04-27 20:29:27 +00:00
39b3a1ef7f
When analyzing functions known to only access argument pointees,
...
only check arguments with pointer types. Update the documentation
of IntrReadArgMem reflect this.
While here, add support for TBAA tags on intrinsic calls.
llvm-svn: 130317
2011-04-27 18:39:03 +00:00
Charles Davis