323c30c5f4
Explicit template instantiations must happen in the template's immediately
...
enclosing namespace. Caught by clang++.
llvm-svn: 91480
2009-12-16 00:13:24 +00:00
2d5967d005
Helpful comment added. Some code cleanup. No functional change.
...
llvm-svn: 91479
2009-12-16 00:08:36 +00:00
3766491eee
Initialize uninitialized variables.
...
llvm-svn: 91477
2009-12-16 00:01:27 +00:00
776ef4dd32
Initialize uninitialized variables.
...
llvm-svn: 91475
2009-12-16 00:00:18 +00:00
1f4690c624
Add support to emit debug info for C++ namespaces.
...
llvm-svn: 91440
2009-12-15 19:16:48 +00:00
45d040bd85
Remove isPod() from DenseMapInfo, splitting it out to its own
...
isPodLike type trait. This is a generally useful type trait for
more than just DenseMap, and we really care about whether something
acts like a pod, not whether it really is a pod.
llvm-svn: 91421
2009-12-15 07:26:43 +00:00
852c486946
Make 91378 more conservative.
...
1. Only perform (zext (shl (zext x), y)) -> (shl (zext x), y) when y is a constant. This makes sure it remove at least one zest.
2. If the shift is a left shift, make sure the original shift cannot shift out bits.
llvm-svn: 91399
2009-12-15 03:00:32 +00:00
07beddceb7
Initial work on disabling the scheduler. This is a work in progress, and this
...
stuff isn't used just yet.
We want to model the GCC `-fno-schedule-insns' and `-fno-schedule-insns2'
flags. The hypothesis is that the people who use these flags know what they are
doing, and have hand-optimized the C code to reduce latencies and other
conflicts.
The idea behind our scheme to turn off scheduling is to create a map "on the
side" during DAG generation. It will order the nodes by how they appeared in the
code. This map is then used during scheduling to get the ordering.
llvm-svn: 91392
2009-12-15 01:54:51 +00:00
45430bbfaa
Tail duplication should zap a copy it inserted for SSA update if the copy is the only use of its source.
...
llvm-svn: 91390
2009-12-15 01:44:10 +00:00
d1521ef40c
Fold (zext (and x, cst)) -> (and (zext x), cst).
...
llvm-svn: 91380
2009-12-15 00:52:11 +00:00
ca7c690d3b
Propagate zest through logical shift.
...
llvm-svn: 91378
2009-12-15 00:41:36 +00:00
e8a525a196
Revert these. They may have been causing 483_xalancbmk to fail:
...
$ svn merge -c -91161 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91161 into '.':
U lib/CodeGen/BranchFolding.cpp
U lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91113 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91113 into '.':
G lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91101 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91101 into '.':
U include/llvm/CodeGen/MachineBasicBlock.h
G lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91092 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91092 into '.':
G include/llvm/CodeGen/MachineBasicBlock.h
G lib/CodeGen/MachineBasicBlock.cpp
llvm-svn: 91376
2009-12-15 00:39:24 +00:00
cecad35728
Fix integer cast code to handle vector types.
...
llvm-svn: 91362
2009-12-14 23:40:38 +00:00
6453a4e2ab
Fix this to properly clear the FastISel debug location. Thanks to
...
Bill for spotting this!
llvm-svn: 91355
2009-12-14 23:08:09 +00:00
1bdf5d6f75
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.
llvm-svn: 91337
2009-12-14 21:49:44 +00:00
525dda05a0
Use DW_AT_specification to point to DIE describing function declaration.
...
llvm-svn: 91278
2009-12-14 16:18:45 +00:00
c73ca2baca
Added CalcSpillWeights to CMakeLists.
...
llvm-svn: 91275
2009-12-14 07:43:25 +00:00
277381f69a
Whitespace changes, comment clarification. No functional changes.
...
llvm-svn: 91274
2009-12-14 06:51:19 +00:00
d17e296301
Moved spill weight calculation out of SimpleRegisterCoalescing and into its own pass: CalculateSpillWeights.
...
llvm-svn: 91273
2009-12-14 06:49:42 +00:00
94b6310136
Fix weird typo which leads to unallocated memory access for nodes with 4 results.
...
llvm-svn: 91233
2009-12-13 01:00:59 +00:00
619a78bd59
Delete an unnecessary line. The VTSDNode on a SIGN_EXTEND_REG is never
...
a vector type.
llvm-svn: 91181
2009-12-11 23:26:08 +00:00
b87b9925be
Don't try to move a MBB into the fall-through position if it's a landing pad or
...
branches only to a landing pad. Without this check, the compiler would go into
an infinite loop because the branch to a landing pad is an "abnormal" edge which
wasn't being taken into account.
This is the meat of that fix:
if (!PrevBB.canFallThrough() && !MBB->BranchesToLandingPad(MBB)) {
The other stuff is simplification of the "branches to a landing pad" code.
llvm-svn: 91161
2009-12-11 21:47:36 +00:00
b314bd688a
Construct CompileUnits lazily.
...
llvm-svn: 91159
2009-12-11 21:37:07 +00:00
1d459e4937
Implement vector widening, splitting, and scalarizing for SIGN_EXTEND_INREG.
...
llvm-svn: 91158
2009-12-11 21:31:27 +00:00
6d306bb32b
Fix the result type of SELECT nodes lowered from Select instructions with
...
aggregate return values. This fixes PR5754.
llvm-svn: 91145
2009-12-11 19:50:50 +00:00
fc51282cbe
Honour setHasCalls() set from isel.
...
This is used in some weird cases like general dynamic TLS model.
This fixes PR5723
llvm-svn: 91144
2009-12-11 19:39:55 +00:00
9f13fc7d63
Revert part of r91101 which was causing an infinite loop in the self-hosting
...
build bots.
llvm-svn: 91113
2009-12-11 10:43:41 +00:00
c9a41c8b03
Coalesce insert_subreg undef, x first to avoid phase ordering issue.
...
llvm-svn: 91103
2009-12-11 06:01:00 +00:00
a1bce0c42e
Address comments on last patch:
...
- Loosen the restrictions when checking of it branches to a landing pad.
- Make the loop more efficient by checking the '.insert' return value.
- Do cheaper checks first.
llvm-svn: 91101
2009-12-11 03:14:18 +00:00
a581aacdce
A machine basic block may end in an unconditional branch, however it may have
...
more than one successor. Normally, these extra successors are dead. However,
some of them may branch to exception handling landing pads. If we remove those
successors, then the landing pads could go away if all predecessors to it are
removed. Before, it was checking if the direct successor was the landing
pad. But it could be the result of jumping through multiple basic blocks to get
to it. If we were to only check for the existence of an EH_LABEL in the basic
block and not remove successors if it's in there, then it could stop actually
dead basic blocks from being removed.
llvm-svn: 91092
2009-12-11 01:49:14 +00:00
2eec32d944
If VariableDIe is not created (may be because global was optimzed away) then do not try to use the variable die.
...
llvm-svn: 91077
2009-12-10 23:25:41 +00:00
4986588ddb
It's not safe to coalesce a move where src and dst registers have different subregister indices. e.g.:
...
%reg16404:1<def> = MOV8rr %reg16412:2<kill>
llvm-svn: 91061
2009-12-10 20:59:45 +00:00
2b75ed2c3d
Refactor code that finds context for a given die.
...
Create global variable DIEs after creating subprogram DIEs. This allows function level static variable's to find their context at the time of DIE creation.
llvm-svn: 91055
2009-12-10 19:14:49 +00:00
b5b60ea4f9
Refactor.
...
llvm-svn: 91051
2009-12-10 18:05:33 +00:00
497161c40b
Also attempt trivial coalescing for live intervals that end in a copy.
...
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.
The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.
This patch is more conservative than r90502, and does not break
483.xalancbmk/i686. It still breaks the PowerPC bootstrap, so it is disabled
by default, and can be enabled with the -trivial-coalesce-ends option.
llvm-svn: 91049
2009-12-10 17:48:32 +00:00
9ccfb641d1
Reapply r90858, a cleanup patch.
...
llvm-svn: 90979
2009-12-09 18:24:21 +00:00
a45fe67667
<rdar://problem/7453528>. Track only physical registers that are valid for the target.
...
llvm-svn: 90970
2009-12-09 17:18:22 +00:00
1ab2b49e6d
Added a new "splitting" spiller.
...
When a call is placed to spill an interval this spiller will first try to
break the interval up into its component values. Single value intervals and
intervals which have already been split (or are the result of previous splits)
are spilled by the default spiller.
Splitting intervals as described above may improve the performance of generated
code in some circumstances. This work is experimental however, and it still
miscompiles many benchmarks. It's not recommended for general use yet.
llvm-svn: 90951
2009-12-09 05:39:12 +00:00
d938faff4b
Teach InferPtrAlignment to infer GV+cst alignment and use it to simplify x86 isl lowering code.
...
llvm-svn: 90925
2009-12-09 01:53:58 +00:00
f5938d5d27
Move isConsecutiveLoad to SelectionDAG. It's not target dependent and it's primary used by selectdag passes.
...
llvm-svn: 90922
2009-12-09 01:36:00 +00:00
2d412f0cb8
Infer alignment for non-fixed stack object.
...
llvm-svn: 90919
2009-12-09 01:17:24 +00:00
1750009f38
Add const qualifier.
...
llvm-svn: 90918
2009-12-09 01:10:37 +00:00
34a23ea371
Refactor InferAlignment out of DAGCombine.
...
llvm-svn: 90917
2009-12-09 01:04:59 +00:00
512001ac7d
Revert 90858 90875 and 90805 for now.
...
llvm-svn: 90898
2009-12-08 23:21:45 +00:00
24c0bb1ca1
Cleanup.
...
There is no need to supply ModuleCU to addType() as a parameter.
llvm-svn: 90858
2009-12-08 15:31:31 +00:00
7d723ec70d
Do not try to push dead variable's debug info into namespace info.
...
llvm-svn: 90857
2009-12-08 15:01:35 +00:00
fb1654d467
Watch out for duplicated PHI instructions.
...
llvm-svn: 90816
2009-12-07 23:11:03 +00:00
5c668a2259
Follow up to 90488. Turn a check into an assertion.
...
llvm-svn: 90815
2009-12-07 23:10:34 +00:00
b074d1783b
Add support to emit debug info for c++ style namespaces.
...
llvm-svn: 90805
2009-12-07 21:41:32 +00:00
d9cb324d7c
Delete code accidentally left behind.
...
llvm-svn: 90804
2009-12-07 21:19:33 +00:00
cc77062194
Pre-regalloc tale duplication. Work in progress.
...
llvm-svn: 90759
2009-12-07 10:15:19 +00:00
92c310cb79
If BB is empty, insert PHI before end() instead of front().
...
llvm-svn: 90744
2009-12-07 03:07:01 +00:00
1bcece70bd
Truncate the arguments of llvm.frameaddress / llvm.returnaddress intrinsics from i32 to platform's largest native type
...
llvm-svn: 90741
2009-12-07 02:28:26 +00:00
35f5646ef0
Remove old DBG_LABEL code.
...
llvm-svn: 90669
2009-12-05 17:56:26 +00:00
6e7073b846
Remove the unused DisableLegalizeTypes option and related code.
...
llvm-svn: 90668
2009-12-05 17:51:33 +00:00
f89986235d
Temporarily revert r90502. It was causing the llvm-gcc bootstrap on PPC to fail.
...
llvm-svn: 90653
2009-12-05 07:30:23 +00:00
0891d759b5
Don't print a space before the : between the file name and line number.
...
And separate the directory and file name with a '/'.
llvm-svn: 90641
2009-12-05 02:00:34 +00:00
3a6164e8ab
Print newlines after printing labels for debug info, so that the output
...
isn't cluttered with things like "Llabel47:Llabel48: movq (%rsi), %xmm3"
llvm-svn: 90638
2009-12-05 01:42:34 +00:00
c82272a7b6
Don't blindly set the debug location for PHI node copies.
...
llvm-svn: 90637
2009-12-05 01:29:04 +00:00
18f94469dc
Make TargetSelectInstruction protected and called from FastISel.cpp
...
instead of SelectionDAGISel.cpp.
llvm-svn: 90636
2009-12-05 01:27:58 +00:00
047a767d74
Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of
...
MachineBasicBlock::canFallThrough(), which is target-independent and more
thorough.
llvm-svn: 90634
2009-12-05 00:44:40 +00:00
0b44cb0d78
Simplify this code: don't call AnalyzeBranch before doing simpler checks.
...
llvm-svn: 90633
2009-12-05 00:32:59 +00:00
02578a3805
The debug information for an LLVM Instruction applies to that Instruction
...
and that Instruction only. Implement this by setting the "current debug position"
back to Unknown after processing each instruction.
llvm-svn: 90632
2009-12-05 00:27:08 +00:00
abc77742c8
Fix this code to use DIScope instead of DICompileUnit, as in r90181.
...
Don't print "SrcLine"; just print the filename and line number, which
is obvious enough and more informative.
llvm-svn: 90631
2009-12-05 00:23:29 +00:00
33004b6302
Don't print the debug directory; it's often long and uninteresting. Omit
...
the column number if it is not known. Handle the case of a missing filename
better.
llvm-svn: 90630
2009-12-05 00:20:51 +00:00
e6d5445dc1
Print a space between the comment character and the text.
...
llvm-svn: 90621
2009-12-04 23:19:55 +00:00
8f0460278c
In TAG_subrange_type, uppder bound is zero indexed.
...
llvm-svn: 90617
2009-12-04 23:10:24 +00:00
15f9df5f4b
Use new interfaces to print spill size.
...
llvm-svn: 90611
2009-12-04 22:46:04 +00:00
9e67255748
Handle recursive PHI's.
...
llvm-svn: 90575
2009-12-04 19:09:10 +00:00
6154dbd5ee
Add a pre-regalloc tail duplication pass.
...
llvm-svn: 90567
2009-12-04 09:42:45 +00:00
0f1cc35c65
Don't try to be cute with undef optimization here. Let ProcessImplicitDefs handle it.
...
llvm-svn: 90566
2009-12-04 09:23:37 +00:00
1602277b70
Add note about a subtle bug in this code. Does not effect the main
...
architectures that LLVM targets, because they don't use this code.
llvm-svn: 90564
2009-12-04 08:42:17 +00:00
ca9cf65455
Also attempt trivial coalescing for live intervals that end in a copy.
...
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.
The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.
This patch takes care of a few more cases that r90163 missed.
llvm-svn: 90502
2009-12-04 00:16:04 +00:00
e156f611ab
- If the reaching definition is an undef and the use is a PHI, add the implicit_def to the end of the source block.
...
- When reaching value is replaced with another, update the cache as well.
llvm-svn: 90501
2009-12-04 00:09:05 +00:00
3b666fef67
Insert composite type DIE into the map before processing type fields. This allows fields to find their context DIE from the map.
...
llvm-svn: 90498
2009-12-03 23:46:57 +00:00
b2c1529d8f
Handle undef values properly.
...
llvm-svn: 90489
2009-12-03 21:51:55 +00:00
8a19371370
Watch out for PHI instruction with no source operands.
...
llvm-svn: 90488
2009-12-03 21:50:58 +00:00
bbd6b6ddf4
Fix ExpandShiftWithUnknownAmountBit, which was completely bogus.
...
Pointed out by Javier Martinez (who also provided a patch). Since
this logic is not used on (for example) x86, I guess nobody noticed.
Tested by generating SHL, SRL, SRA on various choices of i64 for all
possible shift amounts, and comparing with gcc. Since I did this on
x86-32, I had to force the use of ExpandShiftWithUnknownAmountBit.
What I'm saying here is that I don't have a testcase I can add to the
repository.
llvm-svn: 90482
2009-12-03 21:37:32 +00:00
18c7cbd99b
Clean up some loop logic.
...
llvm-svn: 90481
2009-12-03 20:49:10 +00:00
eb57c59b66
Add support to emit debug info for virtual functions and virtual base classes.
...
llvm-svn: 90474
2009-12-03 19:11:07 +00:00
1bbe6be037
Teach tail duplication to update SSA form. Work in progress.
...
llvm-svn: 90432
2009-12-03 08:43:53 +00:00
9655f84662
Don't pull vector sext through both hands of a logical operation, since doing so prevents the fusion of vector sext and setcc into vsetcc.
...
Add a testcase for the above transformation.
Fix a bogus use of APInt noticed while tracking this down.
llvm-svn: 90423
2009-12-03 07:11:29 +00:00
32042f9475
Don't call getValueType() on a null SDValue
...
llvm-svn: 90415
2009-12-03 05:15:35 +00:00
7145382389
Fill out codegen SSA updater. It's not yet tested.
...
llvm-svn: 90395
2009-12-03 02:31:43 +00:00
8392456f1b
Don't hang on to pointers or references after vector::push_back.
...
The MO reference to a MachineOperand can be invalidated by
MachineInstr::addOperand. Don't even use it for debugging.
llvm-svn: 90381
2009-12-03 01:49:56 +00:00
236526dd18
Emit method definition DIE at module level (even for methods with inlined functino body at soure level) so that the debugger can invoke it. This fixes many test failures in gdb test suite.
...
llvm-svn: 90375
2009-12-03 01:25:38 +00:00
a48f44d9ee
improve portability to avoid conflicting with std::next in c++'0x.
...
Patch by Howard Hinnant!
llvm-svn: 90365
2009-12-03 00:50:42 +00:00
a3b825edd1
Fix CMake makefiles
...
llvm-svn: 90354
2009-12-02 22:19:31 +00:00
20e9d030c9
Skeleton for MachineInstr level SSA updater.
...
llvm-svn: 90353
2009-12-02 22:02:52 +00:00
51663f7165
Add MaxStackAlignment.cpp to CMake
...
llvm-svn: 90337
2009-12-02 19:31:07 +00:00
2c3a6c6589
Factor the stack alignment calculations out into a target independent pass.
...
No functionality change.
llvm-svn: 90336
2009-12-02 19:30:24 +00:00
fffbc0c5d9
Don't count PHI instructions toward the limit for tail duplicating a block.
...
llvm-svn: 90326
2009-12-02 17:15:24 +00:00
8c33959df2
Clarify that DIEString does not keep a copy of the string.
...
llvm-svn: 90318
2009-12-02 15:25:16 +00:00
a605b9124a
Reuse existing subprogram DIE.
...
llvm-svn: 90281
2009-12-01 23:07:59 +00:00
732351f732
Fix PR5391: support early clobber physical register def tied with a use (ewwww)
...
- A valno should be set HasRedefByEC if there is an early clobber def in the middle of its live ranges. It should not be set if the def of the valno is defined by an early clobber.
- If a physical register def is tied to an use and it's an early clobber, it just means the HasRedefByEC is set since it's still one continuous live range.
- Add a couple of missing checks for HasRedefByEC in the coalescer. In general, it should not coalesce a vr with a physical register if the physical register has a early clobber def somewhere. This is overly conservative but that's the price for using such a nasty inline asm "feature".
llvm-svn: 90269
2009-12-01 22:25:00 +00:00
b2ae02979f
Add edge source labels to SelectionDAG graphs, now that the graph printing
...
framework omits differentiated edge sources in the case where the labels
are empty strings.
llvm-svn: 90254
2009-12-01 19:20:00 +00:00
8def6e3daf
Minor cleanups.
...
llvm-svn: 90253
2009-12-01 19:16:15 +00:00
939c828604
Trim an unnecessary #include.
...
llvm-svn: 90252
2009-12-01 19:13:27 +00:00
0a2c0bcb14
Clear function specific containers while processing end of a function, even if DW_TAG_subprogram for current function is not found.
...
llvm-svn: 90247
2009-12-01 18:13:48 +00:00
defc47088a
Move PHIElimination::isLiveOut method to LiveVariables.
...
We want LiveVariables clients to use methods rather than accessing the
getVarInfo data structure directly. That way it will be possible to change the
LiveVariables representation.
llvm-svn: 90240
2009-12-01 17:13:31 +00:00
John McCall