Andrew Trick [Tue, 14 Feb 2012 00:00:23 +0000 (00:00 +0000)]
Add simplifyLoopLatch to LoopRotate pass.
This folds a simple loop tail into a loop latch. It covers the common (in fortran) case of postincrement loops. It's a "free" way to expose this type of loop to downstream loop optimizations that bail out on non-canonical loops (getLoopLatch is a heavily used check).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150439
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Andrew Trick [Tue, 14 Feb 2012 00:00:19 +0000 (00:00 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150438
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Bill Wendling [Mon, 13 Feb 2012 23:47:16 +0000 (23:47 +0000)]
Don't reserve the R0 and R1 registers here. We don't use these registers, and
marking them as "live-in" into a BB ruins some invariants that the back-end
tries to maintain.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150437
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Bill Wendling [Mon, 13 Feb 2012 23:45:26 +0000 (23:45 +0000)]
Don't recalculate the size of the vector each time through the loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150436
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Lang Hames [Mon, 13 Feb 2012 23:37:19 +0000 (23:37 +0000)]
Make operands for VSWP read-modify-write.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150433
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Jakob Stoklund Olesen [Mon, 13 Feb 2012 23:25:24 +0000 (23:25 +0000)]
Add register mask support to ScheduleDAGRRList.
The scheduler will sometimes check the implicit-def list on instructions
to properly handle pre-colored DAG edges.
Also check any register mask operands for physreg clobbers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150428
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Devang Patel [Mon, 13 Feb 2012 23:05:18 +0000 (23:05 +0000)]
Check against umin while converting fcmp into an icmp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150425
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Dan Gohman [Mon, 13 Feb 2012 22:57:02 +0000 (22:57 +0000)]
Just like in regular escape analysis, loads and stores through
(but not of) a block pointer do not cause the block pointer to
escape. This fixes rdar://
10803830.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150424
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Kostya Serebryany [Mon, 13 Feb 2012 22:50:51 +0000 (22:50 +0000)]
ThreadSanitizer, a race detector. First LLVM commit.
Clang patch (flags) will follow shortly.
The run-time library will also follow, but not immediately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150423
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Owen Anderson [Mon, 13 Feb 2012 21:47:20 +0000 (21:47 +0000)]
v2f16 is a floating point type. Add symbolic floating point type ranges to prevent this kind of issue in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150416
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Andrew Trick [Mon, 13 Feb 2012 20:44:42 +0000 (20:44 +0000)]
LiveIntervalAnalysis does not depend on MachineLoopInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150411
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Dylan Noblesmith [Mon, 13 Feb 2012 18:48:10 +0000 (18:48 +0000)]
add LLVM_VERSION_MAJOR and _MINOR defines
This is useful for clients that want to maintain compatibility
across multiple releases of LLVM. Currently users like Klee and
Mesa all have to roll their own 'parse llvm-config --version
output and generate defines' solution.
Also reuse the new macros so that version information is less
redundant/likely to fall out of sync again in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150405
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Jakob Stoklund Olesen [Mon, 13 Feb 2012 18:17:04 +0000 (18:17 +0000)]
Check regmask interference for -join-physregs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150404
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Benjamin Kramer [Mon, 13 Feb 2012 16:40:26 +0000 (16:40 +0000)]
Remove empty directories.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150397
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Nadav Rotem [Mon, 13 Feb 2012 12:42:26 +0000 (12:42 +0000)]
Fix a bug in DAGCombine for the optimization of BUILD_VECTOR. We cant generate a shuffle node from two vectors of different types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150383
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Ahmed Charles [Mon, 13 Feb 2012 09:45:36 +0000 (09:45 +0000)]
Remove duplicate code in this header file which seemed to undergo a copy/paste fiasco.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150369
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Craig Topper [Mon, 13 Feb 2012 07:23:41 +0000 (07:23 +0000)]
Still more vector_shuffle pattern removal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150365
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Ahmed Charles [Mon, 13 Feb 2012 06:30:56 +0000 (06:30 +0000)]
Fix various issues (or do cleanups) found by enabling certain MSVC warnings.
- Use unsigned literals when the desired result is unsigned. This mostly allows unsigned/signed mismatch warnings to be less noisy even if they aren't on by default.
- Remove misplaced llvm_unreachable.
- Add static to a declaration of a function on MSVC x86 only.
- Change some instances of calling a static function through a variable to simply calling that function while removing the unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150364
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Craig Topper [Mon, 13 Feb 2012 05:48:49 +0000 (05:48 +0000)]
Remove more vector_shuffle patterns for unpack. These should be target specific nodes when they get to isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150363
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Craig Topper [Mon, 13 Feb 2012 05:10:10 +0000 (05:10 +0000)]
Recommit r150328. Previous test failures should be fixed by r150360.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150362
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Craig Topper [Mon, 13 Feb 2012 04:33:33 +0000 (04:33 +0000)]
Revert accidental commit of a pruned testcase from r150360.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150361
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Craig Topper [Mon, 13 Feb 2012 04:30:38 +0000 (04:30 +0000)]
Update CanXFormVExtractWithShuffleIntoLoad to ensure bitcasts of loads only have one use. Matches DAGCombiner and prevents vector_shuffles from reaching isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150360
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NAKAMURA Takumi [Mon, 13 Feb 2012 00:10:15 +0000 (00:10 +0000)]
Revert r150328, "Remove more vector_shuffle patterns."
It caused 3 failures on pre-penryn and non-x86(generic) hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150357
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Pete Cooper [Mon, 13 Feb 2012 00:10:03 +0000 (00:10 +0000)]
Fixed bug when custom lowering DEC64m on x86.
If the DEC node had more than one user, it was doing this lowering but
leaving the original DEC node around and so decrementing twice.
Fixes PR11964.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150356
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Nadav Rotem [Sun, 12 Feb 2012 15:05:31 +0000 (15:05 +0000)]
This patch addresses the problem of poor code generation for the zext
v8i8 -> v8i32 on AVX machines. The codegen often scalarizes ANY_EXTEND nodes.
The DAGCombiner has two optimizations that can mitigate the problem. First,
if all of the operands of a BUILD_VECTOR node are extracted from an ZEXT/ANYEXT
nodes, then it is possible to create a new simplified BUILD_VECTOR which uses
UNDEFS/ZERO values to eliminate the scalar ZEXT/ANYEXT nodes.
Second, another dag combine optimization lowers BUILD_VECTOR into a shuffle
vector instruction.
In the case of zext v8i8->v8i32 on AVX, a value in an XMM register is to be
shuffled into a wide YMM register.
This patch modifes the second optimization and allows the creation of
shuffle vectors even when the newly generated vector and the original vector
from which we extract the values are of different types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150340
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Benjamin Kramer [Sun, 12 Feb 2012 10:56:52 +0000 (10:56 +0000)]
StringSwitchify the rest of Triple.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150332
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Chandler Carruth [Sun, 12 Feb 2012 09:27:38 +0000 (09:27 +0000)]
Switch a bunch of manual if-chains to use StringSwitch. Clean them up in
the process. Some of these are still a bit gross.
Still, this cuts 80 some lines out of this ridiculous file. ;]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150331
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Craig Topper [Sun, 12 Feb 2012 08:14:35 +0000 (08:14 +0000)]
Remove more vector_shuffle patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150328
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Eli Bendersky [Sun, 12 Feb 2012 06:12:10 +0000 (06:12 +0000)]
Expose the ELFObjectFile class directly in the Object/ELF.h header, similarly
to what's done for MachO and COFF. This allows advanced uses of the class to
be implemented outside the Object library. In particular, the DyldELFObject
subclass is now moved into its logical home - ExecutionEngine/RuntimeDyld.
This patch was reviewed by Michael Spencer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150327
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Nick Lewycky [Sun, 12 Feb 2012 05:09:35 +0000 (05:09 +0000)]
Handle InvokeInst in EvaluateBlock. Don't try to support exceptions, it's just
that no optz'ns have run yet to convert invokes to calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150326
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Nick Lewycky [Sun, 12 Feb 2012 02:17:18 +0000 (02:17 +0000)]
false is totally null!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150324
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Nick Lewycky [Sun, 12 Feb 2012 02:15:20 +0000 (02:15 +0000)]
Remove redundant getAnalysis<> calls in GlobalOpt. Add a few Itanium ABI calls
to TargetLibraryInfo and use one of them in GlobalOpt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150323
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Nick Lewycky [Sun, 12 Feb 2012 01:13:18 +0000 (01:13 +0000)]
Pass TargetData and TargetLibraryInfo through to the constant folder. Fixes a
few fixme's when TLI was added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150322
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Craig Topper [Sun, 12 Feb 2012 01:07:34 +0000 (01:07 +0000)]
Remove more vector_shuffle patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150321
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Nick Lewycky [Sun, 12 Feb 2012 00:52:26 +0000 (00:52 +0000)]
Fix function name in comment to match actual name. Fix comments that are using
doxy-style on local variables to not do so. Fix one 80-col violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150320
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Nick Lewycky [Sun, 12 Feb 2012 00:47:24 +0000 (00:47 +0000)]
Don't traverse the PHI nodes twice. No functionality change!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150319
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Craig Topper [Sat, 11 Feb 2012 23:31:01 +0000 (23:31 +0000)]
Remove more vector_shuffle patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150314
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Anton Korobeynikov [Sat, 11 Feb 2012 17:26:53 +0000 (17:26 +0000)]
Add support for implicit TLS model used with MS VC runtime.
Patch by Kai Nacke!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150307
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Benjamin Kramer [Sat, 11 Feb 2012 16:01:02 +0000 (16:01 +0000)]
Don't mix declarations and code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150305
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Benjamin Kramer [Sat, 11 Feb 2012 14:51:07 +0000 (14:51 +0000)]
Make the EDis tables const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150304
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Benjamin Kramer [Sat, 11 Feb 2012 14:50:54 +0000 (14:50 +0000)]
Reuse the enum names from X86Desc in the X86Disassembler.
This requires some gymnastics to make it available for C code. Remove the names
from the disassembler tables, making them relocation free.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150303
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Bill Wendling [Sat, 11 Feb 2012 11:59:36 +0000 (11:59 +0000)]
Document the new module flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150301
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Bill Wendling [Sat, 11 Feb 2012 11:38:06 +0000 (11:38 +0000)]
[WIP] Initial code for module flags.
Module flags are key-value pairs associated with the module. They include a
'behavior' value, indicating how module flags react when mergine two
files. Normally, it's just the union of the two module flags. But if two module
flags have the same key, then the resulting flags are dictated by the behaviors.
Allowable behaviors are:
Error
Emits an error if two values disagree.
Warning
Emits a warning if two values disagree.
Require
Emits an error when the specified value is not present
or doesn't have the specified value. It is an error for
two (or more) llvm.module.flags with the same ID to have
the Require behavior but different values. There may be
multiple Require flags per ID.
Override
Uses the specified value if the two values disagree. It
is an error for two (or more) llvm.module.flags with the
same ID to have the Override behavior but different
values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150300
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Craig Topper [Sat, 11 Feb 2012 07:43:35 +0000 (07:43 +0000)]
Remove some patterns for matching vector_shuffle instructions since vector_shuffles should be custom lowered before isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150299
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Andrew Trick [Sat, 11 Feb 2012 07:11:32 +0000 (07:11 +0000)]
Add TargetPassConfig hooks for scheduling/bundling.
In case the MachineScheduling pass I'm working on doesn't work well
for another target, they can completely override it. This also adds a
hook immediately after the RegAlloc pass to cleanup immediately after
vregs go away. We may want to fold it into the postRA hook later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150298
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Andrew Trick [Sat, 11 Feb 2012 07:11:29 +0000 (07:11 +0000)]
comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150297
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Craig Topper [Sat, 11 Feb 2012 06:24:48 +0000 (06:24 +0000)]
Fix shuffle lowering code to stop creating temporary DAG nodes to do shuffle mask checks on. This seemed to be confusing things such that vector_shuffle ops to got through to iselection. This is another step towards removing the vector_shuffle handling patterns from isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150296
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Jakob Stoklund Olesen [Sat, 11 Feb 2012 00:44:19 +0000 (00:44 +0000)]
Allow Post-RA LICM to hoist reserved register reads.
When using register masks, registers like %rip are clobbered by the
register mask. LICM should still be able to hoist instructions reading
%rip from a loop containing calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150288
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Jakob Stoklund Olesen [Sat, 11 Feb 2012 00:42:18 +0000 (00:42 +0000)]
Handle register masks in local live range splitting.
Again the goal is to produce identical assembly with register mask
operands enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150287
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Jakob Stoklund Olesen [Sat, 11 Feb 2012 00:40:36 +0000 (00:40 +0000)]
Don't read PreRegAlloc before it is initialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150286
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Jim Grosbach [Fri, 10 Feb 2012 20:38:46 +0000 (20:38 +0000)]
Revert r150222, as the clang driver now handles this properly.
Now that the clang driver passes the CPU and feature information to
the backend when processing assembly files (150273), this isn't necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150274
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Jakob Stoklund Olesen [Fri, 10 Feb 2012 19:27:34 +0000 (19:27 +0000)]
Clean up comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150262
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Jakob Stoklund Olesen [Fri, 10 Feb 2012 19:23:53 +0000 (19:23 +0000)]
Add a static MachineOperand::clobbersPhysReg().
It can be necessary to detach a register mask pointer from its
MachineOperand. This method is convenient for checking clobbered
physregs on a detached bitmask pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150261
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Jakob Stoklund Olesen [Fri, 10 Feb 2012 18:58:34 +0000 (18:58 +0000)]
Add register mask support to InterferenceCache.
This makes global live range splitting behave identically with and
without register mask operands.
This is not necessarily the best way of using register masks for live
range splitting. It would be more efficient to first split global live
ranges around calls (i.e., register masks), and reserve the fine grained
per-physreg interference guidance for global live ranges that do not
cross calls.
For now the goal is to produce identical assembly when enabling register
masks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150259
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Jakob Stoklund Olesen [Fri, 10 Feb 2012 18:52:15 +0000 (18:52 +0000)]
Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150258
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Pete Cooper [Fri, 10 Feb 2012 18:13:54 +0000 (18:13 +0000)]
Added description of invariant.load metadata to LangRef. It was added to the compiler in r144100
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150257
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Jason W Kim [Fri, 10 Feb 2012 16:07:59 +0000 (16:07 +0000)]
Make valgrind happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150251
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Hal Finkel [Fri, 10 Feb 2012 15:52:40 +0000 (15:52 +0000)]
Update BBVectorize to use aliasesUnknownInst.
This allows BBVectorize to check the "unknown instruction" list in the
alias sets. This is important to prevent instruction fusing from reordering
function calls. Resolves PR11920.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150250
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Hal Finkel [Fri, 10 Feb 2012 15:52:39 +0000 (15:52 +0000)]
Have AliasSet::aliasesUnknownInst use pointer TBAA info when available
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150249
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Hal Finkel [Fri, 10 Feb 2012 15:52:37 +0000 (15:52 +0000)]
Make aliasesPointer and aliasesUnknownInst public members of AliasSet.
These query functions are safe for external use and, furthermore,
are the only way to make queries against the "unknown instructions" array.
BBVectorize will use these functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150248
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Duncan Sands [Fri, 10 Feb 2012 14:31:24 +0000 (14:31 +0000)]
Fix PR11948: the result type of an icmp may be a vector of boolean -
don't assume it is a boolean.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150247
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Duncan Sands [Fri, 10 Feb 2012 14:26:42 +0000 (14:26 +0000)]
Revert commit 149912 (lattner) and add a testcase that shows the problem (which
is that patterns no longer match for vectors of booleans, because you only get
ConstantDataVector when the vector element type is i8, i16, etc, not when it is
i1). Original commit message:
Remove some dead code and tidy things up now that vectors use ConstantDataVector
instead of always using ConstantVector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150246
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Benjamin Kramer [Fri, 10 Feb 2012 13:18:44 +0000 (13:18 +0000)]
Put instruction names into an indexed string table on the side, removing a pointer from MCInstrDesc.
Make them accessible through MCInstrInfo. They are only used for debugging purposes so this doesn't
have an impact on performance. X86MCTargetDesc.o goes from 630K to 461K on x86_64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150245
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Andrew Trick [Fri, 10 Feb 2012 07:08:25 +0000 (07:08 +0000)]
comment grammar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150233
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Jia Liu [Fri, 10 Feb 2012 04:58:24 +0000 (04:58 +0000)]
update --enable-targets list
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150229
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Andrew Trick [Fri, 10 Feb 2012 04:10:44 +0000 (04:10 +0000)]
unnecessary include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150228
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Andrew Trick [Fri, 10 Feb 2012 04:10:40 +0000 (04:10 +0000)]
PTX no longer needs to provide its own backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150227
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Andrew Trick [Fri, 10 Feb 2012 04:10:36 +0000 (04:10 +0000)]
RegAlloc superpass: includes phi elimination, coalescing, and scheduling.
Creates a configurable regalloc pipeline.
Ensure specific llc options do what they say and nothing more: -reglloc=... has no effect other than selecting the allocator pass itself. This patch introduces a new umbrella flag, "-optimize-regalloc", to enable/disable the optimizing regalloc "superpass". This allows for example testing coalscing and scheduling under -O0 or vice-versa.
When a CodeGen pass requires the MachineFunction to have a particular property, we need to explicitly define that property so it can be directly queried rather than naming a specific Pass. For example, to check for SSA, use MRI->isSSA, not addRequired<PHIElimination>.
CodeGen transformation passes are never "required" as an analysis
ProcessImplicitDefs does not require LiveVariables.
We have a plan to massively simplify some of the early passes within the regalloc superpass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150226
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Andrew Trick [Fri, 10 Feb 2012 04:10:26 +0000 (04:10 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150225
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Lang Hames [Fri, 10 Feb 2012 03:19:36 +0000 (03:19 +0000)]
Remove unused 'isAlias' parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150224
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Jim Grosbach [Fri, 10 Feb 2012 02:21:49 +0000 (02:21 +0000)]
ARM on darwin, v6 implies the presence of VFP for the assembler.
rdar://
10838899
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150222
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Jakob Stoklund Olesen [Fri, 10 Feb 2012 01:31:31 +0000 (01:31 +0000)]
Constrain the regmask search space for local live ranges.
When checking a local live range for interference, restrict the binary
search to the single block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150220
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Jakob Stoklund Olesen [Fri, 10 Feb 2012 01:26:29 +0000 (01:26 +0000)]
Cache basic block boundaries for faster RegMaskSlots access.
Provide API to get a list of register mask slots and bits in a basic
block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150219
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Jakob Stoklund Olesen [Fri, 10 Feb 2012 01:23:55 +0000 (01:23 +0000)]
Optimize LiveIntervals::intervalIsInOneMBB().
No looping and binary searches necessary.
Return a pointer to the containing block instead of just a bool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150218
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Benjamin Kramer [Fri, 10 Feb 2012 00:28:31 +0000 (00:28 +0000)]
Cache iterators. Some of these are expensive to create.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150214
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David Blaikie [Thu, 9 Feb 2012 19:24:12 +0000 (19:24 +0000)]
Change default error_code ctor to a 'named ctor' so it's more self-documenting.
Unify default construction of error_code uses on this idiom so that users don't
feel compelled to make static globals for naming convenience. (unfortunately I
couldn't make the original ctor private as some APIs don't return their result,
instead using an out parameter (that makes sense to default construct) - which
is a bit of a pity. I did, however, find/fix some cases of unnecessary default
construction of error_code before I hit the unfixable cases)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150197
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Jakob Stoklund Olesen [Thu, 9 Feb 2012 18:25:05 +0000 (18:25 +0000)]
Add register mask support to RAGreedy.
This only adds the interference checks required for correctness.
We still need to take advantage of register masks for the
interference driven live range splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150191
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Devang Patel [Thu, 9 Feb 2012 17:34:01 +0000 (17:34 +0000)]
Now subprogram descriptors are not collected by llvm.dbg.sp NamedMDNode. Update document to reflect this change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150187
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Benjamin Kramer [Thu, 9 Feb 2012 16:28:15 +0000 (16:28 +0000)]
Tweak comment readability and grammar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150183
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Sirish Pande [Thu, 9 Feb 2012 15:20:33 +0000 (15:20 +0000)]
Test for commit access.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150178
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Benjamin Kramer [Thu, 9 Feb 2012 14:26:06 +0000 (14:26 +0000)]
GlobalOpt: Be more aggressive about elminating side-effect free static dtors.
GlobalOpt runs early in the pipeline (before inlining) and complex class
hierarchies often introduce bitcasts or GEPs which weren't optimized away.
Teach it to ignore side-effect free instructions instead of depending on
other passes to remove them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150174
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Benjamin Kramer [Thu, 9 Feb 2012 12:35:37 +0000 (12:35 +0000)]
Store just the SimpleValueType in the generated VT tables for each register class, eliminating static ctors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150173
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Benjamin Kramer [Thu, 9 Feb 2012 11:25:09 +0000 (11:25 +0000)]
Move the Name field in MCInstrDesc to the end, saving 8 bytes of padding per entry on x86_64.
No change on i386.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150170
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James Molloy [Thu, 9 Feb 2012 10:56:31 +0000 (10:56 +0000)]
Teach the MC and disassembler about SoftFail, and hook it up to UNPREDICTABLE on ARM. Wire this to tBLX in order to provide test coverage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150169
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Craig Topper [Thu, 9 Feb 2012 08:58:07 +0000 (08:58 +0000)]
More tweaks to get the size of the X86 disassembler tables down.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150167
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Craig Topper [Thu, 9 Feb 2012 07:45:30 +0000 (07:45 +0000)]
Flatten some of the arrays in the X86 disassembler tables to reduce space needed to store pointers on 64-bit hosts and reduce relocations needed at startup. Part of PR11953.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150161
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Lang Hames [Thu, 9 Feb 2012 05:59:36 +0000 (05:59 +0000)]
Preserve physreg kills in MachineBasicBlock::SplitCriticalEdge.
Failure to preserve kills was causing LiveIntervals to miss some EFLAGS live
ranges. Unfortunately I've been unable to reduce a good test case yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150152
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NAKAMURA Takumi [Thu, 9 Feb 2012 05:12:58 +0000 (05:12 +0000)]
test/CodeGen/X86/atom-lea-sp.ll: Add explicit -mtriple=i686-linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150151
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Lang Hames [Thu, 9 Feb 2012 04:45:38 +0000 (04:45 +0000)]
Fix kill flags when moving instructions using LiveIntervals::moveInstr(...).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150150
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Lang Hames [Thu, 9 Feb 2012 04:39:48 +0000 (04:39 +0000)]
Remove assertion. Not all use operands are reads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150149
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Andrew Trick [Thu, 9 Feb 2012 00:40:55 +0000 (00:40 +0000)]
Improve TargetPassConfig. No intended functionality.
Split CodeGen into stages.
Distinguish between optimization and correctness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150122
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Andrew Trick [Thu, 9 Feb 2012 00:40:52 +0000 (00:40 +0000)]
comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150121
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David Blaikie [Thu, 9 Feb 2012 00:29:19 +0000 (00:29 +0000)]
Remove static initializer from DataStream.cpp
If someone would prefer a clear name for the 'success' error_value we could
come up with one - potentially just a 'named constructor' style
'error_value::success()' to make this expression more self-documenting. If
I see this come up in other cases I'll certainly consider it.
One step along the way to resolving PR11944.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150120
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Jakob Stoklund Olesen [Thu, 9 Feb 2012 00:19:08 +0000 (00:19 +0000)]
Erase dead copies that are clobbered by a call.
This does make a difference, at least when using RABasic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150118
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Jakob Stoklund Olesen [Thu, 9 Feb 2012 00:17:22 +0000 (00:17 +0000)]
Handle register masks when searching for EFLAGS clobbers.
Calls clobber the flags, but when using register masks there is no
EFLAGS<imp-def> operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150117
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Jakob Stoklund Olesen [Thu, 9 Feb 2012 00:15:39 +0000 (00:15 +0000)]
Never delete instructions that define reserved registers.
I think this was already the intention, but DeadMachineInstructionElim
was accidentally tracking the liveness of reserved registers. Now,
instructions with reserved defs are never deleted.
This prevents the call stack adjustment instructions from getting
deleted when enabling register masks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150116
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Jakob Stoklund Olesen [Wed, 8 Feb 2012 22:37:35 +0000 (22:37 +0000)]
Handle register masks in MachineCopyPropagation.
For simplicity, treat calls with register masks as basic block
boundaries. This means we can't copy propagate callee-saved registers
across calls, but I don't think that is a big deal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150108
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Evan Cheng [Wed, 8 Feb 2012 22:33:17 +0000 (22:33 +0000)]
Commit Andy Zhang's test for the lea patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150107
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Chris Lattner [Wed, 8 Feb 2012 22:20:00 +0000 (22:20 +0000)]
fix broken link
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150105
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Kostya Serebryany [Wed, 8 Feb 2012 21:36:17 +0000 (21:36 +0000)]
[asan] unpoison the stack before every noreturn call. Fixes asan issue 37. llvm part
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150102
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