f72693f36e
Remove a poor scheduling heuristic.
...
llvm-svn: 42443
2007-09-28 19:37:35 +00:00
038dcc5136
Trim some unneeded fields.
...
llvm-svn: 42442
2007-09-28 19:24:24 +00:00
789b5a505b
Fix long double -> uint64 conversion.
...
llvm-svn: 42440
2007-09-28 18:44:17 +00:00
6bf69ed3cc
minor long double related changes
...
llvm-svn: 42439
2007-09-28 18:06:58 +00:00
25d506c41b
Make the checks for DW_FORM_data4 consistent with the others, and
...
add more such code for DIEDwarfLabel::SizeOf and DIEObjectLabel::SizeOf.
llvm-svn: 42435
2007-09-28 16:50:28 +00:00
0d23d63b9e
Use 32-bit data directives for DW_FORM_data4 format data, even on
...
targets with 64-bit addresses.
llvm-svn: 42434
2007-09-28 15:43:33 +00:00
25a00a63eb
Add sqrt and powi intrinsics for long double.
...
llvm-svn: 42423
2007-09-28 01:08:20 +00:00
a1d46c7d0a
TargetAsmInfo::getAddressSize() was incorrect for x86-64 and 64-bit targets
...
other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.
llvm-svn: 42419
2007-09-27 23:12:31 +00:00
613afce430
CollectorMetadata abstractly describes stack maps for a function.
...
It includes:
- location and of each safe point in machine code (identified by a
label)
- location of each root within the stack frame (identified by an
offset), including the metadata tag provided to llvm.gcroot in
the user program
- size of the stack frame (for collectors which want to cheat on
stack crawling :)
- and eventually will include liveness
It is to be populated by back-ends during code-generation.
CollectorModuleMetadata aggregates this information across the
entire module.
llvm-svn: 42418
2007-09-27 22:18:46 +00:00
658c57eb66
My previous Registry.h header, as well as Collectors.h, which is the
...
registry for dynamically-loaded garbage collection compiler plugins.
llvm-svn: 42415
2007-09-27 19:34:27 +00:00
e6f92253f5
Avoid inserting a live register more than once.
...
llvm-svn: 42410
2007-09-27 18:46:06 +00:00
75439b3b78
Silence a compiler warning.
...
llvm-svn: 42389
2007-09-27 07:35:39 +00:00
bde499be60
Boogs.
...
llvm-svn: 42388
2007-09-27 07:29:27 +00:00
1ec79b41db
Be smarter about which node to force schedule. Reduce # of duplications + copies; Added statistics.
...
llvm-svn: 42387
2007-09-27 07:09:03 +00:00
cfd5f82890
Backtracking only when it won't create a cycle.
...
llvm-svn: 42384
2007-09-27 00:25:29 +00:00
34aa41c475
Make temporaries explicit to avoid premature
...
destruction of compiler-created ones.
llvm-svn: 42383
2007-09-26 23:20:33 +00:00
8e136a9dc4
- Move getPhysicalRegisterRegClass() from ScheduleDAG to MRegisterInfo.
...
- Added ability to emit cross class register copies to the BBRU scheduler.
- More aggressive backtracking.
llvm-svn: 42375
2007-09-26 21:36:17 +00:00
b6d56401aa
Enable codegen for long double abs, sin, cos
...
llvm-svn: 42368
2007-09-26 21:10:55 +00:00
f04d37d3a9
Fix f80 UNDEF.
...
llvm-svn: 42359
2007-09-26 17:26:49 +00:00
c1e4e3743b
Allow copyRegToReg to emit cross register classes copies.
...
Tested with "make check"!
llvm-svn: 42346
2007-09-26 06:25:56 +00:00
5e1a428344
Move the setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand) and
...
the check to see if the assembler supports .loc from X86TargetLowering
into the superclass TargetLowering.
llvm-svn: 42297
2007-09-25 15:10:49 +00:00
5924bf7d3b
Added major new capabilities to scheduler (only BURR for now) to support physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered.
...
llvm-svn: 42284
2007-09-25 01:54:36 +00:00
3165699e4b
Don't emit .debug_line header data if there aren't any lines to put in it,
...
such as will happen when .loc directives are used.
llvm-svn: 42277
2007-09-24 21:43:52 +00:00
9b00c07be5
Move the Asm->EOL() call for EmitDebugARanges outside the #ifdef for
...
consistency with the other currently empty sections.
llvm-svn: 42276
2007-09-24 21:36:21 +00:00
0baf84b2e1
Add support for emitting .file directives to set up file numbers for
...
use with .loc directives.
llvm-svn: 42275
2007-09-24 21:32:18 +00:00
bd8331da87
Add a routine for emitting .file directives, for setting up
...
file numbers to use with .loc directives.
llvm-svn: 42272
2007-09-24 20:58:13 +00:00
6002818999
Use the correct result value type instead of using getValueType(0)
...
in ExpandEXTRACT_VECTOR_ELT and SplitVectorOp. This fixes an abort
in the included testcase.
llvm-svn: 42264
2007-09-24 15:54:53 +00:00
7d98b23f1a
When emitting .set directives, make sure the EH and Debug labels can't conflict.
...
llvm-svn: 42257
2007-09-24 03:35:37 +00:00
10671ad650
initialize isstore/isload fields in ctor, fixing PR1695
...
llvm-svn: 42222
2007-09-22 07:02:12 +00:00
4230512f32
Change APFloat::convertFromInteger to take the incoming
...
bit width instead of number of words allocated, which
makes it actually work for int->APF conversions.
Adjust callers. Add const to one of the APInt constructors
to prevent surprising match when called with const
argument.
llvm-svn: 42210
2007-09-21 22:09:37 +00:00
51ce795c92
don't read Block after it is freed. This fixes PR1684
...
llvm-svn: 42204
2007-09-21 18:25:53 +00:00
b3d01d2f56
initialize SetCCResultContents, fixing PR1693
...
llvm-svn: 42193
2007-09-21 17:06:39 +00:00
7d67e547b5
More long double fixes. x86_64 should build now.
...
llvm-svn: 42155
2007-09-19 23:55:34 +00:00
b59d25fe54
Fix longdouble -> uint conversion.
...
llvm-svn: 42143
2007-09-19 17:53:26 +00:00
0effc3a6b8
Use struct SDep instead of std::pair for SUnit pred and succ lists. First step
...
in tracking physical register output dependencies.
llvm-svn: 42125
2007-09-19 01:38:40 +00:00
e2e8f2d96b
Fix a bogus splat xform:
...
shuffle <undef, undef, x, undef>, <undef, undef, undef, undef>, <2, 2, 2, 2>
!=
<undef, undef, x, undef>
llvm-svn: 42111
2007-09-18 21:54:37 +00:00
af12b57405
Prevent crash on long double.
...
llvm-svn: 42103
2007-09-18 18:36:59 +00:00
e8c885f261
Don't pass back a reference to a temporary.
...
llvm-svn: 42086
2007-09-18 09:10:16 +00:00
69833b61ac
The exception handling function info should be reset for each new
...
function. The information isn't used heavily -- it's only used at the end
of exception handling emission -- so there's no need to cache it.
llvm-svn: 42078
2007-09-18 05:03:44 +00:00
067f1d8e95
Objective-C was generating EH frame info like this:
...
"_-[NSString(local) isNullOrNil]".eh = 0
.no_dead_strip "_-[NSString(local) isNullOrNil]".eh
The ".eh" should be inside the quotes.
llvm-svn: 42074
2007-09-18 01:47:22 +00:00
00064e1bab
Do not hide APInt::dump() inside #ifndef NDEBUG.
...
llvm-svn: 42068
2007-09-17 22:24:00 +00:00
77ae4d358f
This is not ideal but unbreaks build failure.
...
APInt::dump() is inside #ifndef NDEBUG, however SelectionDAG dump() routines are not.
llvm-svn: 42047
2007-09-17 20:03:03 +00:00
0625bd6472
Merge DenseMapKeyInfo & DenseMapValueInfo into DenseMapInfo
...
Add a new DenseMapInfo::isEqual method to allow clients to redefine
the equality predicate used when probing the hash table.
llvm-svn: 42042
2007-09-17 18:34:04 +00:00
7f724e9b94
Adjust per revew comments.
...
llvm-svn: 42002
2007-09-16 16:51:49 +00:00
98d3a08d8f
Remove the assumption that FP's are either float or
...
double from some of the many places in the optimizers
it appears, and do something reasonable with x86
long double.
Make APInt::dump() public, remove newline, use it to
dump ConstantSDNode's.
Allow APFloats in FoldingSet.
Expand X86 backend handling of long doubles (conversions
to/from int, mostly).
llvm-svn: 41967
2007-09-14 22:26:36 +00:00
9da02f5ee2
Remove isReg, isImm, and isMBB, and change all their users to use
...
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.
llvm-svn: 41958
2007-09-14 20:33:02 +00:00
58c468fb09
Remove spurious consts. This fixes warnings with compilers that
...
are strict about such things.
llvm-svn: 41956
2007-09-14 20:08:19 +00:00
7955bbd9fd
Fix build problems on Cygwin (PR1652), patch by Patrick Walton.
...
llvm-svn: 41923
2007-09-13 06:09:48 +00:00
100c8d6c8f
Bug fixes.
...
llvm-svn: 41900
2007-09-13 00:06:00 +00:00
57ff158255
Remove dead code.
...
llvm-svn: 41899
2007-09-12 23:45:46 +00:00
bb6a574def
Yet another getTargetNode variant.
...
llvm-svn: 41898
2007-09-12 23:39:49 +00:00
d8317967aa
Fixed a typo that's causing a missing kill marker.
...
llvm-svn: 41893
2007-09-12 23:02:04 +00:00
028084efe5
Revise previous patch per review comments.
...
Next round of x87 long double stuff.
Getting close now, basically works.
llvm-svn: 41875
2007-09-12 03:30:33 +00:00
c16847b157
Sometimes a MI can define a register as well as defining a super-register at the
...
same time. Do not mark the "smaller" def as dead.
llvm-svn: 41871
2007-09-11 22:34:47 +00:00
245dceb06d
Add APInt interfaces to APFloat (allows directly
...
access to bits). Use them in place of float and
double interfaces where appropriate.
First bits of x86 long double constants handling
(untested, probably does not work).
llvm-svn: 41858
2007-09-11 18:32:33 +00:00
74fb0f1a1c
Add a bool to indicate if we should set the "indirect encoding" bit in the Dwarf
...
information for EH.
llvm-svn: 41852
2007-09-11 17:20:55 +00:00
86e0119822
Fold the adjust_trampoline intrinsic into
...
init_trampoline. There is now only one
trampoline intrinsic.
llvm-svn: 41841
2007-09-11 14:10:23 +00:00
2b8fc31df9
The personality function on Darwin needs a global stub. We then refer to
...
that global stub instead of doing the ".set" thingy we were doing before.
llvm-svn: 41838
2007-09-11 08:27:17 +00:00
3b9f777f47
Observation of rematerialization.
...
llvm-svn: 41809
2007-09-10 22:11:18 +00:00
58c227bd09
Emit:
...
cmpl %eax, %ecx
setae %al
movzbl %al, %eax
instead of:
cmpl %eax, %ecx
setb %al
xorb $1, %al
movzbl %al, %eax
when using logical not of a C comparison.
llvm-svn: 41807
2007-09-10 21:39:07 +00:00
33a7f51412
1. Don't call Value::getName(), which is slow.
...
2. Lower calls to fabs and friends to FABS nodes etc unless the function has
internal linkage. Before we wouldn't lower if it had a definition, which
is incorrect. This allows us to compile:
define double @fabs(double %f) {
%tmp2 = tail call double @fabs( double %f )
ret double %tmp2
}
into:
_fabs:
fabs f1, f1
blr
llvm-svn: 41805
2007-09-10 21:15:22 +00:00
29e6ac4281
Implement misaligned FP loads and stores.
...
llvm-svn: 41786
2007-09-08 19:29:23 +00:00
1de0c86717
Add support for having different alignment for objects on call frames.
...
The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.
llvm-svn: 41768
2007-09-07 14:52:14 +00:00
122bf4be7e
Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register
...
liveins and we let frontend solve type issue, not lowering code :)
llvm-svn: 41763
2007-09-07 11:39:35 +00:00
e2f23a3abf
Add lengthof and endof templates that hide a lot of sizeof computations.
...
Patch by Sterling Stein!
llvm-svn: 41758
2007-09-07 04:06:50 +00:00
517d5d8ebe
Constify to catch bugs.
...
llvm-svn: 41751
2007-09-06 19:46:46 +00:00
bed9dc423c
Next round of APFloat changes.
...
Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double. Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)
llvm-svn: 41747
2007-09-06 18:13:44 +00:00
a07765b8f4
Proper handle case, when aliasee is external weak symbol referenced only by alias itself.
...
Also, fix a case, when target doesn't have weak symbols supported.
llvm-svn: 41746
2007-09-06 17:21:48 +00:00
a6d5d2a6a0
Add instruction dump output. This helps find bugs.
...
llvm-svn: 41744
2007-09-06 16:36:39 +00:00
65d2a697dc
Pluggable coalescers inplementation.
...
llvm-svn: 41743
2007-09-06 16:18:45 +00:00
d059eed1c1
Fix a memory leak.
...
llvm-svn: 41739
2007-09-06 01:07:24 +00:00
db53aef53e
Use pool allocator for all the VNInfo's to improve memory access locality. This reduces coalescing time on siod Mac OS X PPC by 35%. Also remove the back ptr from VNInfo to LiveInterval and other tweaks.
...
llvm-svn: 41729
2007-09-05 21:46:51 +00:00
2c0a0fb725
Due to label merging, the last label for an invoke
...
may be the same as the first label for the following
invoke. Remove a micro-optimization which was wrong
in this case.
llvm-svn: 41720
2007-09-05 14:12:46 +00:00
3c1b7fc056
Fix PR1628. When exception handling is turned on,
...
labels are generated bracketing each call (not just
invokes). This is used to generate entries in
the exception table required by the C++ personality.
However it gets in the way of tail-merging. This
patch solves the problem by no longer placing labels
around ordinary calls. Instead we generate entries
in the exception table that cover every instruction
in the function that wasn't covered by an invoke
range (the range given by the labels around the invoke).
As an optimization, such entries are only generated for
parts of the function that contain a call, since for
the moment those are the only instructions that can
throw an exception [1]. As a happy consequence, we
now get a smaller exception table, since the same
region can cover many calls. While there, I also
implemented folding of invoke ranges - successive
ranges are merged when safe to do so. Finally, if
a selector contains only a cleanup, there's a special
shorthand for it - place a 0 in the call-site entry.
I implemented this while there. As a result, the
exception table output (excluding filters) is now
optimal - it cannot be made smaller [2]. The
problem with throw filters is that folding them
optimally is hard, and the benefit of folding them is
minimal.
[1] I tested that having trapping instructions (eg
divide by zero) in such a region doesn't cause trouble.
[2] It could be made smaller with the help of higher
layers, eg by having branch folding reorder basic blocks
ending in invokes with the same landing pad so they
follow each other. I don't know if this is worth doing.
llvm-svn: 41718
2007-09-05 11:27:52 +00:00
e0cb6bb8da
Fix for PR1632. EHSELECTION always produces a i32 value.
...
llvm-svn: 41712
2007-09-04 20:39:26 +00:00
35322d745c
Silence warning while compiling with gcc 4.2
...
llvm-svn: 41676
2007-09-02 22:11:14 +00:00
38ce90fd44
Emit proper "secrel" directive, where possible. This fixes invalid asm syntax of debug info on mingw32. Also, cleanup
...
some stuff.
llvm-svn: 41675
2007-09-02 22:07:21 +00:00
2089a21360
More tweaks to improve compile time.
...
llvm-svn: 41669
2007-09-01 02:03:17 +00:00
446b900192
Add mod, copysign, abs operations to APFloat.
...
Implement some constant folding in SelectionDAG and
DAGCombiner using APFloat. Remove double versions
of constructor and getValue from ConstantFPSDNode.
llvm-svn: 41664
2007-08-31 23:34:27 +00:00
7bef79a1c3
std::map -> DenseMap for slight compile time benefit.
...
llvm-svn: 41650
2007-08-31 21:23:06 +00:00
da7469f2b5
Revise per review of previous patch.
...
llvm-svn: 41645
2007-08-31 17:03:33 +00:00
91becf4ffa
Remove an unnecessary element, saving 4 bytes per LiveInterval.
...
llvm-svn: 41641
2007-08-31 08:26:44 +00:00
262596e76a
Use std::map instead of a (potentially very sparse) array to track val# defined by copy from the other live range. Minor compile time win when number of val# is large.
...
llvm-svn: 41640
2007-08-31 08:04:17 +00:00
3cf889f75e
Enhance APFloat to retain bits of NaNs (fixes oggenc).
...
Use APFloat interfaces for more references, mostly
of ConstantFPSDNode.
llvm-svn: 41632
2007-08-31 04:03:46 +00:00
32a0a995c6
Try fold re-materialized load instructions into its uses.
...
llvm-svn: 41598
2007-08-30 05:53:02 +00:00
d246b2ca5c
Change LegalFPImmediates to use APFloat.
...
Add APFloat interfaces to ConstantFP, SelectionDAG.
Fix integer bit in double->APFloat conversion.
Convert LegalizeDAG to use APFloat interface in
ConstantFPSDNode uses.
llvm-svn: 41587
2007-08-30 00:23:21 +00:00
2bdec2a5ee
Fix use of declaration inside case block
...
llvm-svn: 41584
2007-08-29 23:18:48 +00:00
1ad4a6117b
Change LiveRange so it keeps a pointer to the VNInfo rather than an index.
...
Changes related modules so VNInfo's are not copied. This decrease
copy coalescing time by 45% and overall compilation time by 10% on siod.
llvm-svn: 41579
2007-08-29 20:45:00 +00:00
830b1cb4e9
Lower FRAME_TO_ADDR_OFFSET to zero by default (if not custom lowered)
...
llvm-svn: 41578
2007-08-29 19:28:29 +00:00
81b62e1218
Add an option, -view-sunit-dags, for viewing the actual SUnit DAGs used by
...
scheduling.
llvm-svn: 41556
2007-08-28 20:32:58 +00:00
a5b10b334f
Recover most of the compile time regression due to recent live interval changes.
...
1. Eliminate the costly live interval "swapping".
2. Change ValueNumberInfo container from SmallVector to std::vector. The former
performs slowly when the vector size is very large.
llvm-svn: 41536
2007-08-28 08:28:51 +00:00
9625d812c9
Make DAGCombiner's global alias analysis query more precise in the case
...
where both pointers have non-zero offsets.
llvm-svn: 41491
2007-08-27 16:32:11 +00:00
8dc0b93151
If the source and destination pointers in an llvm.memmove are known
...
to not alias each other, it can be translated as an llvm.memcpy.
llvm-svn: 41489
2007-08-27 16:26:13 +00:00
ef5a654216
There is an impedance matching problem between LLVM and
...
gcc exception handling: if an exception unwinds through
an invoke, then execution must branch to the invoke's
unwind target. We previously tried to enforce this by
appending a cleanup action to every selector, however
this does not always work correctly due to an optimization
in the C++ unwinding runtime: if only cleanups would be
run while unwinding an exception, then the program just
terminates without actually executing the cleanups, as
invoke semantics would require. I was hoping this
wouldn't be a problem, but in fact it turns out to be the
cause of all the remaining failures in the LLVM testsuite
(these also fail with -enable-correct-eh-support, so turning
on -enable-eh didn't make things worse!). Instead we need
to append a full-blown catch-all to the end of each
selector. The correct way of doing this depends on the
personality function, i.e. it is language dependent, so
can only be done by gcc. Thus this patch which generalizes
the eh.selector intrinsic so that it can handle all possible
kinds of action table entries (before it didn't accomodate
cleanups): now 0 indicates a cleanup, and filters have to be
specified using the number of type infos plus one rather than
the number of type infos. Related gcc patches will cause
Ada to pass a cleanup (0) to force the selector to always
fire, while C++ will use a C++ catch-all (null).
llvm-svn: 41484
2007-08-27 15:47:50 +00:00
032d89828e
Add explicit keywords and remove spurious trailing semicolons.
...
llvm-svn: 41482
2007-08-27 14:50:10 +00:00
b6d2bec418
Revise per review comments.
...
llvm-svn: 41409
2007-08-26 01:18:27 +00:00
2cfcf70f82
Add APFloat interface to ConstantFPSDNode. Change
...
over uses in DAGCombiner. Fix interfaces to work
with APFloats.
llvm-svn: 41407
2007-08-25 22:10:57 +00:00
2ed652f11d
Allow target constants to be illegal types. The target should
...
know how to handle them. This fixes
test/CodeGen/Generic/asm-large-immediate.ll
llvm-svn: 41388
2007-08-25 01:00:22 +00:00
dbfc4e4b07
Teach the dag scheduler to handle inline asm nodes with multi-value immediate operands.
...
llvm-svn: 41386
2007-08-25 00:53:07 +00:00
48597b4ff8
The personality function might need to be declared as:
...
.set Lset0,___gxx_personality_v0-.
.long Lset0
on some targets. Make it so!
llvm-svn: 41385
2007-08-25 00:51:55 +00:00
d8c9cb9182
rename isOperandValidForConstraint to LowerAsmOperandForConstraint,
...
changing the interface to allow for future changes.
llvm-svn: 41384
2007-08-25 00:47:38 +00:00
bdea32d812
Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual.
...
This means backing out the preceding change to Constants.cpp, alas.
llvm-svn: 41378
2007-08-24 22:09:56 +00:00
7891d8edf0
Use APFloat internally for ConstantFPSDNode.
...
llvm-svn: 41372
2007-08-24 20:59:15 +00:00
97cdac8d19
Perform correct codegen for eh_dwarf_cfa intrinsic.
...
llvm-svn: 41316
2007-08-23 07:21:06 +00:00
beb80a9832
move this check. ppc outputs .no_dead_strip properly
...
llvm-svn: 41286
2007-08-22 19:33:11 +00:00
54a187ea8b
Minor cleanups to reduce some spurious differences between different
...
scheduler implementations.
llvm-svn: 41191
2007-08-20 19:28:38 +00:00
9c3d20d823
Partial implementation of calling functions with byval arguments:
...
*) The needed information is propagated to the DAG
*) The X86-64 backend detects it and aborts
llvm-svn: 41179
2007-08-20 15:18:24 +00:00
f5a23abf37
Fold C ? 0 : 1 to ~C or zext(~C) or trunc(~C) depending the types.
...
llvm-svn: 41163
2007-08-18 05:57:05 +00:00
cb6d65e1bf
Avoid issue on 64-bit hosts.
...
llvm-svn: 41143
2007-08-17 18:02:22 +00:00
81db5acab0
Fix GLIBCXX_DEBUG error of comparing two singular iterators
...
llvm-svn: 41139
2007-08-17 15:13:55 +00:00
631ccc6144
If dynamic_stackalloc alignment is > stack alignment, first issue an instruction to align the stack ptr before the decrement.
...
llvm-svn: 41133
2007-08-16 23:50:06 +00:00
95667c532c
- If a dynamic_stackalloc alignment requirement is <= stack alignment, then the alignment argument is ignored.
...
- *Always* round up the size of the allocation to multiples of stack
alignment to ensure the stack ptr is never left in an invalid state after a dynamic_stackalloc.
llvm-svn: 41132
2007-08-16 23:46:29 +00:00
70c2de7bf1
Fix some kill info update bugs; add hidden option -disable-rematerialization to turn off remat for debugging.
...
llvm-svn: 41118
2007-08-16 07:24:22 +00:00
a392cd2fde
Implement FPOWI ExpandOp.
...
Fix PR1287.
llvm-svn: 41112
2007-08-15 22:13:27 +00:00
958cf3d43e
If the source of a move is in spill slot, the reload may be folded to essentially a load from stack slot. It's ok to mark the stack slot value as available for reuse. But it should not be clobbered since the destination of the move is live.
...
llvm-svn: 41109
2007-08-15 20:20:34 +00:00
3f22fffe94
- If a def is dead, do not spill it.
...
- If the defs of a spilled rematerializable MI are dead after the spill store is deleted, delete
the def MI as well.
llvm-svn: 41086
2007-08-14 23:25:37 +00:00
94168a4ed0
Fix for PR1596: AdjustCopiesBackFrom() should conservatively check if any of its sub-registers may overlap with the interval of the copy that's being coalesced.
...
llvm-svn: 41084
2007-08-14 23:19:28 +00:00
6cb9fd7be5
If a MI's def is remat as well as spilled, and the store is later deemed dead, mark the def operand as isDead.
...
llvm-svn: 41083
2007-08-14 20:23:13 +00:00
234386509b
If a spilled value is being reused and the use is a kill, that means there are
...
no more uses within the MBB and the spilled value isn't live out of the MBB.
Then it's safe to delete the spill store.
llvm-svn: 41069
2007-08-14 09:11:18 +00:00
78a8806f4f
If a rematerializable def is not deleted, i.e. it is also spilled, check if the
...
spilled value is available for reuse.
llvm-svn: 41067
2007-08-14 05:42:54 +00:00
74c69f7588
Kill info update bugs.
...
llvm-svn: 41064
2007-08-14 01:56:58 +00:00
33820da1da
Re-implement trivial rematerialization. This allows def MIs whose live intervals that are coalesced to be rematerialized.
...
llvm-svn: 41060
2007-08-13 23:45:17 +00:00
5ca98c657d
Kill info update bugs.
...
llvm-svn: 41043
2007-08-13 07:12:23 +00:00
af21e9550e
No need to remove dead range from soon-to-be-dead live interval. Its val# may be out of whack.
...
llvm-svn: 41024
2007-08-12 01:26:19 +00:00
05cc486c7b
Code to maintain kill information during register coalescing.
...
llvm-svn: 41016
2007-08-11 00:59:19 +00:00
e081928f49
Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there.
...
llvm-svn: 41005
2007-08-10 21:11:55 +00:00
a17799a3bd
Fix EXTRACT_ELEMENT, EXTRACT_SUBVECTOR, and EXTRACT_VECTOR_ELT to
...
use an intptr ValueType instead of i32 for the index operand in
getCopyToParts.
llvm-svn: 40987
2007-08-10 14:59:38 +00:00
66011c17d5
propagate struct size and alignment of byval arguments to the DAG
...
llvm-svn: 40986
2007-08-10 14:44:42 +00:00
2b9fe84b07
unbreak the build
...
llvm-svn: 40976
2007-08-09 23:55:17 +00:00
1115a2b412
Bug fix. ~1U marks the val# dead.
...
llvm-svn: 40975
2007-08-09 23:14:39 +00:00
c339e45274
Update per review comments.
...
llvm-svn: 40965
2007-08-09 17:27:48 +00:00
ba1a98a4e0
long double 9 of N. This finishes up the X86-32 bits
...
(constants are still not handled). Adds ConvertActions
to control fp-to-fp conversions (these are currently
defaulted for all other targets, so no changes there).
llvm-svn: 40958
2007-08-09 01:04:01 +00:00
9d09c5ccda
If a target really needs to custom lower constants, it should be allowed
...
to do so.
llvm-svn: 40955
2007-08-08 23:23:31 +00:00
d771b793fe
Adding kill info to val#.
...
llvm-svn: 40925
2007-08-08 07:03:29 +00:00
103947125c
Clean up and bug fix.
...
llvm-svn: 40921
2007-08-08 05:56:18 +00:00
a8c2f38617
- Each val# can have multiple kills.
...
- Fix some minor bugs related to special markers on val# def. ~0U means
undefined, ~1U means dead val#.
llvm-svn: 40916
2007-08-08 03:00:28 +00:00
c236617ea0
Remove a dead assertion.
...
llvm-svn: 40914
2007-08-08 01:00:21 +00:00
0d0fee269a
- LiveInterval value#'s now have 3 components: def instruction #,
...
kill instruction #, and source register number (iff the value# is defined by a
copy).
- Now def instruction # is set for every value#, not just for copy defined ones.
- Update some outdated code related inactive live ranges.
- Kill info not yet set. That's next patch.
llvm-svn: 40913
2007-08-07 23:49:57 +00:00
99905f16f8
Add a missing forward declaration.
...
llvm-svn: 40896
2007-08-07 16:34:05 +00:00
079ebcfae5
Fix a regression compiling 2005-05-11-Popcount-ffs-fls with the CBE,
...
introduced by chandler's patch.
llvm-svn: 40864
2007-08-06 16:36:18 +00:00
2e5fb9f71e
Implement review feedback. No functionality change.
...
llvm-svn: 40863
2007-08-06 16:33:56 +00:00
446282ae3d
Fix minor doxygen nits.
...
llvm-svn: 40854
2007-08-05 20:06:04 +00:00
6299a45277
shorten this name
...
llvm-svn: 40843
2007-08-05 18:45:33 +00:00
7132e00de7
This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future.
...
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.
llvm-svn: 40807
2007-08-04 01:51:18 +00:00
5f6a9da530
More explicit keywords.
...
llvm-svn: 40757
2007-08-02 21:21:54 +00:00
3ffe7187db
don't redefine a parameter
...
llvm-svn: 40748
2007-08-02 18:08:16 +00:00
358c3d1dac
Do not emit copies for physical register output if it's not used.
...
llvm-svn: 40722
2007-08-02 05:29:38 +00:00
5b80ecbcf5
Style police: Expand the tabs to spaces!
...
llvm-svn: 40712
2007-08-02 02:22:46 +00:00
c5549fc3a0
Instead of adding copyfromreg's to handle physical definitions. Now isel can
...
simply specify them as results and let scheduledag handle them. That
is, instead of
SDOperand Flag = DAG.getTargetNode(Opc, MVT::i32, MVT::Flag, ...)
SDOperand Result = DAG.getCopyFromReg(Chain, X86::EAX, MVT::i32, Flag)
Just write:
SDOperand Result = DAG.getTargetNode(Opc, MVT::i32, MVT::i32, ...)
And let scheduledag emit the move from X86::EAX to a virtual register.
llvm-svn: 40710
2007-08-02 00:28:15 +00:00
d8ded48468
Bugs: missing partial uses and redundant partial defs.
...
llvm-svn: 40688
2007-08-01 20:18:21 +00:00
0db4418a5f
Expand unaligned loads/stores when the target doesn't support them. (PR1548)
...
llvm-svn: 40682
2007-08-01 19:34:21 +00:00
17a5dfe6f7
New CallInst interface to address GLIBCXX_DEBUG errors caused by
...
indexing an empty std::vector.
Updates to all clients.
llvm-svn: 40660
2007-08-01 03:43:44 +00:00
e02b2d7e69
simpleregistercoalescing -> regcoalescing. It's too long for me to handle.
...
llvm-svn: 40654
2007-07-31 22:37:44 +00:00
34e2d22d63
- Allow custom lowering for CTPOP, CTTZ, CTLZ.
...
- Fixed an existing unexpanded tab.
llvm-svn: 40605
2007-07-30 21:00:31 +00:00
4ff9fb14f6
Fix a bug in getCopyFromParts turned up in the testcase for PR1132.
...
llvm-svn: 40598
2007-07-30 19:09:17 +00:00
33d0ea2597
Print a space between the comment character and the basic block name,
...
for prettiness.
llvm-svn: 40593
2007-07-30 15:06:25 +00:00
644f917358
Support for trampolines, except for X86 codegen which is
...
still under discussion.
llvm-svn: 40549
2007-07-27 12:58:54 +00:00
14bbb15f07
Move subreg lowering pass to be right after regalloc, per feedback.
...
llvm-svn: 40548
2007-07-27 07:36:14 +00:00
30f060be80
Fix the alias analysis query in DAGCombiner to not add in two
...
offsets. The SrcValueOffset values are the real offsets from the
SrcValue base pointers.
llvm-svn: 40534
2007-07-26 16:14:06 +00:00
e9d738cefc
Add a MachineFunction pass, which runs post register allocation, that turns subreg insert/extract instruction into register copies. This ensures correct code gen if the coalescer isn't able to remove all subreg instructions.
...
llvm-svn: 40521
2007-07-26 08:18:32 +00:00
18603b03e1
Teach DAG scheduling how to properly emit subreg insert/extract machine instructions. PR1350
...
llvm-svn: 40520
2007-07-26 08:12:07 +00:00
a8fc0e527b
Add selection DAG nodes for subreg insert/extract. PR1350
...
llvm-svn: 40516
2007-07-26 07:34:40 +00:00
0dbc152d2e
Remove subreg index from MachineInstr's and also keep vregs as unsigned when adding operands.
...
llvm-svn: 40514
2007-07-26 07:00:46 +00:00
3fead96121
Fix infinite recursion for when extract_vector_elt is legal. Unfortunately no public targets use this code-path, so no test.
...
llvm-svn: 40510
2007-07-26 03:33:13 +00:00
86eb3fd97d
EmitAlignment() also emits optional fill value.
...
llvm-svn: 40500
2007-07-25 23:35:07 +00:00
64b64ae591
Minor cleanup:
...
- Split EH and debug infiormation
- Make DwarfWriter more verbose in some cases
llvm-svn: 40481
2007-07-25 00:06:28 +00:00
f0bb12848f
Add const to CanBeFoldedBy, CheckAndMask, and CheckOrMask.
...
llvm-svn: 40480
2007-07-24 23:00:27 +00:00
b6a8ae20c7
Fix some uses of dyn_cast to be uses of cast.
...
llvm-svn: 40443
2007-07-23 20:24:29 +00:00
147d9fa57d
Don't assume that only Uses can be kills. Defs are marked as kills initially
...
when there are no uses. This fixes a dangling-pointer bug, where pointers to
deleted instructions were not removed from kills lists. More info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-July/009749.html
llvm-svn: 40131
2007-07-20 23:17:34 +00:00
9d5df0a5f6
Added -print-emitted-asm to print out JIT generated asm to cerr.
...
llvm-svn: 40123
2007-07-20 21:56:13 +00:00
85ec2af554
As pointed out by g++-4.2, the original code didn't do
...
what it thought it was doing.
llvm-svn: 40044
2007-07-19 07:31:58 +00:00
a8d152a22a
Add comment.
...
llvm-svn: 40022
2007-07-18 23:34:48 +00:00
a7b65c30a3
It's not necessary to do rounding for alloca operations when the requested
...
alignment is equal to the stack alignment.
llvm-svn: 40004
2007-07-18 16:29:46 +00:00
f9ef70560e
Dead code.
...
llvm-svn: 39979
2007-07-17 20:01:19 +00:00
06c60b6032
Fix comments about vectors to use the current wording.
...
llvm-svn: 39921
2007-07-16 14:29:03 +00:00
d20f485866
Fix the build. Patch from Holger Schurig.
...
llvm-svn: 39856
2007-07-14 15:11:14 +00:00
383a324735
Long live the exception handling!
...
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.
In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.
After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be
thought as 'finished': I expect many small and not so small glitches
everywhere.
llvm-svn: 39855
2007-07-14 14:06:15 +00:00
ff72788863
Fix the comment for LegalizeOp to more accurately reflect what it does.
...
llvm-svn: 39827
2007-07-13 20:14:11 +00:00
80f9f077e3
Don't call SimplifyVBinOp for non-vector operations, following earlier review
...
feedback. This theoretically makes the common (scalar) case more efficient.
llvm-svn: 39823
2007-07-13 20:03:40 +00:00
4dc35dbd3e
Modify previous patch per review comments.
...
llvm-svn: 39817
2007-07-13 17:31:29 +00:00
2182f06f2d
Skeleton of post-RA scheduler; doesn't do anything yet.
...
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.
llvm-svn: 39816
2007-07-13 17:13:54 +00:00
0263dd1d7f
The type ids making up a filter are unsigned, and
...
should be output as unsigned values. Checked against
gcc.
llvm-svn: 39775
2007-07-12 13:51:39 +00:00
6b6d1f685f
Missed a couple of places where new instructions are added due to spill / restore.
...
llvm-svn: 39748
2007-07-11 19:17:18 +00:00
03b274911f
Exception handling has been implemented.
...
llvm-svn: 39732
2007-07-11 16:59:20 +00:00
d5ea194b6c
If assertions are not enabled, we should return False here.
...
llvm-svn: 38535
2007-07-11 08:47:55 +00:00
74a541024f
No longer need to track last def / use.
...
llvm-svn: 38534
2007-07-11 08:47:44 +00:00
bec7a20c5e
Fix for PR1545: Revamp code that update kill information due to register reuse.
...
llvm-svn: 38525
2007-07-11 05:28:39 +00:00
d9034f717a
Make this work with GLIBCXX_DEBUG.
...
llvm-svn: 38516
2007-07-10 22:00:30 +00:00
60d6f96da3
Change the peep for EXTRACT_VECTOR_ELT of BUILD_PAIR to look for
...
the new CONCAT_VECTORS node type instead, as that's what legalize
uses now. And add a peep for EXTRACT_VECTOR_ELT of INSERT_VECTOR_ELT.
llvm-svn: 38503
2007-07-10 18:20:44 +00:00
5e9084207f
If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def.
...
llvm-svn: 38496
2007-07-10 17:52:20 +00:00
fbc73099dc
Somehow this wasn't committed last time. M_CLOBBERS_PRED is gone.
...
llvm-svn: 38495
2007-07-10 17:50:43 +00:00
adb3d37c07
Fix a bug in the folding of binary operators to undef.
...
Thanks to Lauro for spotting this!
llvm-svn: 38491
2007-07-10 15:19:29 +00:00
fa91282dbf
Fix the folding of undef in several binary operators to recognize
...
undef in either the left or right operand.
llvm-svn: 38489
2007-07-10 14:20:37 +00:00
ff6f279adf
When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value.
...
llvm-svn: 38485
2007-07-10 07:08:32 +00:00
32aad49b24
Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h
...
llvm-svn: 38484
2007-07-10 06:59:55 +00:00
2af3063337
Preserve volatililty and alignment information when lowering or
...
simplifying loads and stores.
llvm-svn: 38473
2007-07-09 22:18:38 +00:00
f8f531bf69
Change getCopyToParts and getCopyFromParts to always use target-endian
...
register ordering, for both physical and virtual registers. Update the PPC
target lowering for calls to expect registers for the call result to
already be in target order.
llvm-svn: 38471
2007-07-09 20:59:04 +00:00
6decfbf133
Initialize the IndexedModeActions array with memset before
...
updating it with calls to setIndexedLoadAction/setIndexedStoreAction,
which only update a few bits at a time. This avoids ostensible
undefined behavior of operationg on values which may be
trap-representations, and as a practical matter fixes errors from
valgrind, which doesn't track uninitialized memory with bit
granularity.
llvm-svn: 38468
2007-07-09 20:49:44 +00:00
6caf8fdd04
Fix this warning:
...
DAGCombiner.cpp: In member function 'llvm::SDOperand<unnamed>::DAGCombiner::visitOR(llvm::SDNode*)':
DAGCombiner.cpp:1608: warning: passing negative value '-0x00000000000000001' for argument 1 to 'llvm::SDOperand llvm::SelectionDAG::getConstant(uint64_t, llvm::MVT::ValueType, bool)'
oiy.
llvm-svn: 38458
2007-07-09 16:16:34 +00:00
ef3d8362a3
fix typos
...
llvm-svn: 38453
2007-07-09 12:00:59 +00:00
Evan Cheng