a91a563530
Previously, all operands to Constant were themselves constant.
...
In the new world order, BlockAddress can have a BasicBlock operand.
This doesn't permute much, because if you have a ConstantExpr (or
anything more specific than Constant) we still know the operand has
to be a Constant.
llvm-svn: 85375
2009-10-28 05:14:34 +00:00
2cb85b4020
'static const void *X = &&y' can only be put in the
...
readonly section if a reference to the containing function
is valid in the readonly section.
llvm-svn: 85370
2009-10-28 04:12:16 +00:00
cd139c0373
Rewrite SelectionDAG::isPredecessorOf to be iterative instead of
...
recursive to avoid consuming extraordinary amounts of stack space
when processing tall graphs.
llvm-svn: 85369
2009-10-28 03:44:30 +00:00
3432c62d93
full asmparser support for blockaddress. We can now do:
...
$ llvm-as foo.ll -d -disable-output
which reads and prints the .ll file. BC encoding is the
next project. Testcase will go in once that works.
llvm-svn: 85368
2009-10-28 03:39:23 +00:00
214cc709bc
asmprinter support for BlockAddress.
...
llvm-svn: 85367
2009-10-28 03:38:12 +00:00
3a39530445
when we tear down a module, we need to be careful to
...
zap BlockAddress values.
llvm-svn: 85366
2009-10-28 03:37:35 +00:00
1b44f10ff4
Teach MachineLICM to unfold loads from constant memory from
...
otherwise unhoistable instructions in order to allow the loads
to be hoisted.
llvm-svn: 85364
2009-10-28 03:21:57 +00:00
4a609f3cef
Use fconsts and fconstd to materialize small fp constants.
...
llvm-svn: 85362
2009-10-28 01:44:26 +00:00
83896a59e1
Add a second ValueType argument to isFPImmLegal.
...
llvm-svn: 85361
2009-10-28 01:43:28 +00:00
4b46cbfc23
Mark dead physregdefs dead immediately. This helps MachineSink and
...
MachineLICM and other things which run before LiveVariables is run.
llvm-svn: 85360
2009-10-28 01:13:53 +00:00
75d6a4afd2
Allow constants of different types to share constant pool entries
...
if they have compatible encodings.
llvm-svn: 85359
2009-10-28 01:12:16 +00:00
deab9dee12
Remove getIEEEFloatParts and getIEEEDoubleParts. They are not needed.
...
llvm-svn: 85358
2009-10-28 01:08:17 +00:00
9c6bc1f563
Update SystemZ to use PSW following the way x86 uses EFLAGS. Besides
...
eliminating a use of MVT::Flag, this is needed for an upcoming CodeGen
change.
This unfortunately requires SystemZ to switch to the list-burr
scheduler, in order to handle the physreg defs properly, however
that's what LLVM has available at this time.
llvm-svn: 85357
2009-10-28 00:55:57 +00:00
e4b80c9bee
Add an indirect branch pattern for ARM. Testcase will be coming soon.
...
llvm-svn: 85355
2009-10-28 00:37:03 +00:00
d04cb6d0fa
rename indbr -> indirectbr to appease the residents of #llvm.
...
llvm-svn: 85351
2009-10-28 00:19:10 +00:00
31b132c0b7
IR support for the new BlockAddress constant kind. This is
...
untested and there is no way to use it, next up: doing battle
with asmparser.
llvm-svn: 85349
2009-10-28 00:01:44 +00:00
9693f9d465
Record CodeGen optimization level in the BranchFolding pass so that we can
...
use it to control tail merging when there is a tradeoff between performance
and code size. When there is only 1 instruction in the common tail, we have
been merging. That can be good for code size but is a definite loss for
performance. Now we will avoid tail merging in that case when the
optimization level is "Aggressive", i.e., "-O3". Radar 7338114.
Since the IfConversion pass invokes BranchFolding, it too needs to know
the optimization level. Note that I removed the RegisterPass instantiation
for IfConversion because it required a default constructor. If someone
wants to keep that for some reason, we can add a default constructor with
a hard-wired optimization level.
llvm-svn: 85346
2009-10-27 23:49:38 +00:00
f6ee7bea88
Rename lib/VMCore/ConstantsContext.h:ValueMap<> to ConstantUniqueMap<> to avoid
...
colliding with llvm/ADT/ValueMap.h:ValueMap<>.
llvm-svn: 85344
2009-10-27 23:45:55 +00:00
2e5198ff09
Add new note.
...
llvm-svn: 85341
2009-10-27 23:30:07 +00:00
cd3939ef0e
Fixed a bug in the coalescer where intervals were occasionally merged despite a real interference. This fixes rdar://problem/7157961.
...
llvm-svn: 85338
2009-10-27 23:16:58 +00:00
5607d2cb54
Enable virtual register based frame index scavenging by default for ARM & T2.
...
llvm-svn: 85335
2009-10-27 22:52:29 +00:00
fd2730ee8c
Move and clarify note.
...
llvm-svn: 85334
2009-10-27 22:48:31 +00:00
c1403a0024
Infrastructure for dynamic stack realignment on ARM. For now, this is off by
...
default behind a command line option. This will enable better performance for
vectors on NEON enabled processors.
llvm-svn: 85333
2009-10-27 22:45:39 +00:00
2974f63cb5
Note corrected.
...
llvm-svn: 85332
2009-10-27 22:43:24 +00:00
cd4d148040
Modify note.
...
llvm-svn: 85331
2009-10-27 22:40:45 +00:00
a205402c16
Add a note.
...
llvm-svn: 85329
2009-10-27 22:34:43 +00:00
11cf3f4a27
Factor out redundancy from clone() implementations.
...
llvm-svn: 85327
2009-10-27 22:16:29 +00:00
a5e078b677
Update the MachineBasicBlock CFG for an indirect branch.
...
llvm-svn: 85325
2009-10-27 22:10:34 +00:00
a4374e66f0
Add CodeGen support for indirect branches.
...
llvm-svn: 85323
2009-10-27 21:56:26 +00:00
6d8b15bebc
make the build build.
...
llvm-svn: 85319
2009-10-27 21:43:39 +00:00
67c902147e
Add new APFloat methods that return sign, exp, and mantissa of ieee float and double values.
...
llvm-svn: 85318
2009-10-27 21:35:42 +00:00
c5c281ea44
Random updates to passes for indbr, I need blockaddress before I can do much more.
...
llvm-svn: 85316
2009-10-27 21:27:42 +00:00
e8628a0206
cppbackend support for indbr
...
llvm-svn: 85312
2009-10-27 21:24:48 +00:00
42c979e8d3
CBE support for indbr.
...
llvm-svn: 85311
2009-10-27 21:21:06 +00:00
cde65ec581
Similar to r85280, do not clear the "S" bit for RSBri and RSBrs.
...
llvm-svn: 85299
2009-10-27 20:51:49 +00:00
cfeaa48642
Do not held on to DenseMap slot accross map insertion. The insertion may cause the map to grow rending the slot invalid.
...
Use this opportunity to use ValueMap instead of DenseMap.
llvm-svn: 85298
2009-10-27 20:47:17 +00:00
4f36affe5f
Set condition code bits of BL and BLr9 to 0b1110 (ALways) to distinguish between
...
BL_pred and BLr9_pred.
llvm-svn: 85297
2009-10-27 20:45:15 +00:00
26076a8f10
don't use stdio
...
llvm-svn: 85296
2009-10-27 20:42:54 +00:00
4567db45b8
Change the JIT to compile eagerly by default as agreed in
...
http://llvm.org/PR5184 , and beef up the comments to describe what both options
do and the risks of lazy compilation in the presence of threads.
llvm-svn: 85295
2009-10-27 20:30:28 +00:00
f390e04a47
Rename MallocFreeHelper as MemoryBuiltins
...
llvm-svn: 85286
2009-10-27 20:05:49 +00:00
16993aa30b
Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target.
...
llvm-svn: 85281
2009-10-27 19:56:55 +00:00
b5044ce5a9
Do not clear the "S" bit for RSCri and RSCrs. They inherit from the "sI"
...
instruction format that already takes care of setting this.
llvm-svn: 85280
2009-10-27 19:52:03 +00:00
3ed871fe62
add enough support for indirect branch for the feature test to pass
...
(assembler,asmprinter, bc reader+writer) and document it. Codegen
currently aborts on it.
llvm-svn: 85274
2009-10-27 19:13:16 +00:00
df5dcdaa10
Explicitly specify 0b00, i.e, zero rotation, as the rotate filed (Inst{11-10})
...
for the r/rr fragment of the multiclass AI_unary_rrot/AI_bin_rrot.
llvm-svn: 85271
2009-10-27 18:44:24 +00:00
a789f17ffc
Remove unnecessary gotos to fall-thru successors.
...
llvm-svn: 85257
2009-10-27 17:40:24 +00:00
b678a56fef
Test commit. Added '.' to the comment line.
...
llvm-svn: 85255
2009-10-27 17:25:15 +00:00
26a7ae4fba
Type.h doesn't need to #include LLVMContext.h
...
llvm-svn: 85254
2009-10-27 17:08:31 +00:00
0997991252
pseudosourcevalue is also still using getGlobalContext(), so it isn't
...
thread safe either.
llvm-svn: 85253
2009-10-27 17:02:08 +00:00
fb22a85baf
apparently the X86 JIT isn't fully contextized, it is still using getGlobalContext() :(
...
llvm-svn: 85252
2009-10-27 17:01:03 +00:00
d90d169f9d
Correctly align double arguments in the stack.
...
llvm-svn: 85235
2009-10-27 14:09:44 +00:00
c6b3b25f94
Fix a pretty serious misfeature of the inliner: if it inlines a function
...
with multiple return values it inserts a PHI to merge them all together.
However, if the return values are all the same, it ends up with a pointless
PHI and this pointless PHI happens to really block SRoA from happening in
at least a silly C++ example written by Doug, but probably others. This
fixes rdar://7339069.
llvm-svn: 85206
2009-10-27 05:39:41 +00:00
2b0a49a682
VS build fix, patch by Marius Wachtler.
...
llvm-svn: 85197
2009-10-27 02:14:13 +00:00
e3e08e0f90
Fix OProfileJITEventListener after r85182.
...
llvm-svn: 85192
2009-10-27 01:06:51 +00:00
7a50b280c1
Add objectsize intrinsic and hook it up through codegen. Doesn't
...
do anything than return "I don't know" at the moment.
llvm-svn: 85189
2009-10-27 00:52:25 +00:00
538984c1c3
Now VFP instructions.
...
llvm-svn: 85186
2009-10-27 00:20:49 +00:00
f808106bbe
Add braces to avoid ambiguous else.
...
llvm-svn: 85185
2009-10-27 00:11:02 +00:00
b02bdb4552
Change Thumb1 and Thumb2 instructions to separate opcode from operands with a tab instead of a space.
...
llvm-svn: 85184
2009-10-27 00:08:59 +00:00
bf43f6543d
Automatically do the equivalent of freeMachineCodeForFunction(F) when F is
...
being destroyed. This allows users to run global optimizations like globaldce
even after some functions have been jitted.
This patch also removes the Function* parameter to
JITEventListener::NotifyFreeingMachineCode() since it can cause that to be
called when the Function is partially destroyed. This change will be even more
helpful later when I think we'll want to allow machine code to actually outlive
its Function.
llvm-svn: 85182
2009-10-27 00:03:05 +00:00
762195bd01
Rename MallocHelper as MallocFreeHelper, since it now also identifies calls to free()
...
llvm-svn: 85181
2009-10-26 23:58:56 +00:00
03b5de67b0
Add a straight-forward implementation of SCCVN for aggressively eliminating scalar redundancies.
...
llvm-svn: 85179
2009-10-26 23:55:47 +00:00
13edef55b6
Change ARM asm strings to separate opcode from operands with a tab instead of a space.
...
llvm-svn: 85178
2009-10-26 23:45:59 +00:00
de5ad42aa1
Remove FreeInst.
...
Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.
llvm-svn: 85176
2009-10-26 23:43:48 +00:00
a33fa47141
Try to get ahead of Johnny Chen and pro-actively add some more ARM encoding
...
bits. Johnny, please review -- I do not have a good track record of getting
these right.
llvm-svn: 85173
2009-10-26 22:59:12 +00:00
1de6a1f7d2
Fix ARM encoding typo: Opcod3 is not passed to ASuI parent class.
...
Patch by Johnny Chen.
llvm-svn: 85169
2009-10-26 22:42:13 +00:00
a6aba77e0a
Add more ARM instruction encodings for 's' bit set and "rs" register encoding
...
bits. Patch by Johnny Chen.
llvm-svn: 85167
2009-10-26 22:34:44 +00:00
e056d1077e
Allow the aggressive anti-dep breaker to process the same region multiple times. This is necessary because new anti-dependencies are exposed when "current" ones are broken.
...
llvm-svn: 85166
2009-10-26 22:31:16 +00:00
34e38afa96
Simplify this code. LoopDeletion doesn't need to explicit check that
...
the loop exiting block dominates the latch block; if ScalarEvolution
can prove that the trip-count is finite, that's sufficient.
llvm-svn: 85165
2009-10-26 22:18:58 +00:00
672927f393
Code that checks WillNotOverflowSignedAdd before creating an Add
...
can safely use the NSW bit on the Add.
llvm-svn: 85164
2009-10-26 22:14:22 +00:00
ce8f626f82
Update CMake files.
...
llvm-svn: 85161
2009-10-26 22:06:01 +00:00
3b7ba5f35b
Teach BasicAA how to analyze Select instructions, and make it more
...
aggressive on PHI instructions.
llvm-svn: 85158
2009-10-26 21:55:43 +00:00
661ea989e9
Define virtual destructor in *.cpp file.
...
llvm-svn: 85146
2009-10-26 19:41:00 +00:00
de11f36ab7
Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all.
...
llvm-svn: 85145
2009-10-26 19:32:42 +00:00
6a1d9eace9
Check in the experimental GEP splitter pass. This pass splits complex
...
GEPs (more than one non-zero index) into simple GEPs (at most one
non-zero index). In some simple experiments using this it's not
uncommon to see 3% overall code size wins, because it exposes
redundancies that can be eliminated, however it's tricky to use
because instcombine aggressively undoes the work that this pass does.
llvm-svn: 85144
2009-10-26 19:12:14 +00:00
0ae1b2961d
Revert r85134, it breaks mingw build
...
llvm-svn: 85138
2009-10-26 18:40:24 +00:00
9aba0d9988
When checking whether a def of an aliased register is dead, ask the
...
machineinstr whether the aliased register is dead, rather than the original
register is dead. This allows it to get the correct answer when examining
an instruction like this:
CALLpcrel32 <ga:foo>, %AL<imp-def>, %EAX<imp-def,dead>
where EAX is dead but a subregister of it is still live. This fixes PR5294.
llvm-svn: 85135
2009-10-26 18:26:18 +00:00
752aea6513
Make PIC16 overlay a loadable pass.
...
llvm-svn: 85134
2009-10-26 18:22:59 +00:00
d6dd2a0840
Do not use expensive sort().
...
llvm-svn: 85130
2009-10-26 17:09:00 +00:00
8370485db9
Break anti-dependence breaking out into its own class.
...
llvm-svn: 85127
2009-10-26 16:59:04 +00:00
c80b5c8707
Add support to encode type info using llvm::Constant.
...
Patch by Talin!
llvm-svn: 85126
2009-10-26 16:54:35 +00:00
6a10d5ebd3
Fix a typo in a comment.
...
llvm-svn: 85120
2009-10-26 15:55:24 +00:00
683eed3286
reapply r85085 with a bugfix to avoid infinite looping.
...
All of the 'demorgan' related xforms need to use
dyn_castNotVal, not m_Not.
llvm-svn: 85119
2009-10-26 15:40:07 +00:00
d632f89596
Make LSR's OptimizeShadowIV ignore induction variables with negative
...
strides for now, because it doesn't handle them correctly. This fixes a
miscompile of SingleSource/Benchmarks/Misc-C++/ray.
This problem was usually hidden because indvars transforms such induction
variables into negations of canonical induction variables.
llvm-svn: 85118
2009-10-26 15:32:57 +00:00
b81cb2a9a8
- Revert some changes from 85044, 85045, and 85047 that broke x86_64 tests and
...
bootstrapping. It's not safe to leave identity subreg_to_reg and insert_subreg
around.
- Relax register scavenging to allow use of partially "not-live" registers. It's
common for targets to operate on registers where the top bits are undef. e.g.
s0 =
d0 = insert_subreg d0<undef>, s0, 1
...
= d0
When the insert_subreg is eliminated by the coalescer, the scavenger used to
complain. The previous fix was to keep to insert_subreg around. But that's
brittle and it's overly conservative when we want to use the scavenger to
allocate registers. It's actually legal and desirable for other instructions
to use the "undef" part of d0. e.g.
s0 =
d0 = insert_subreg d0<undef>, s0, 1
...
s1 =
= s1
= d0
We probably need add a "partial-undef" marker on machine operand so the
machine verifier would not complain.
llvm-svn: 85091
2009-10-26 04:56:07 +00:00
8014a728b9
Revert 85085. It causes infinite looping during llvm-gcc build.
...
llvm-svn: 85090
2009-10-26 03:51:32 +00:00
56869f22c4
Move DataTypes.h to include/llvm/System, update all users. This breaks the last
...
direct inclusion edge from System to Support.
llvm-svn: 85086
2009-10-26 01:35:46 +00:00
2e6564d6ff
Implement PR3266 & PR5276, folding:
...
not (or (icmp, icmp)) -> and(icmp, icmp)
llvm-svn: 85085
2009-10-26 01:06:31 +00:00
e38317f432
fix PR5295 where the .ll parser didn't reject a function after a global
...
or global after a function with conflicting names. Update some testcases
that were accidentally depending on this behavior.
llvm-svn: 85081
2009-10-25 23:22:50 +00:00
3d913cda5f
Suppress -Asserts warning.
...
llvm-svn: 85078
2009-10-25 23:11:06 +00:00
f4c2a9f02a
fix PR5186: the JIT shouldn't try to codegen available_externally
...
functions it should just look them up like declarations.
llvm-svn: 85077
2009-10-25 23:06:42 +00:00
083524ae5c
Remove unused includes.
...
llvm-svn: 85074
2009-10-25 22:38:41 +00:00
5bde1cbd93
of -> or
...
llvm-svn: 85065
2009-10-25 19:14:48 +00:00
5a9788b979
80-column cleanup
...
llvm-svn: 85064
2009-10-25 18:55:46 +00:00
b18a46806b
Reapply 85006 with a minor fix.
...
llvm-svn: 85052
2009-10-25 08:14:11 +00:00
2e7dee5f23
Add ARM getMatchingSuperRegClass to handle S / D / Q cross regclass coalescing.
...
llvm-svn: 85049
2009-10-25 07:53:28 +00:00
5d1b849658
Don't forget subreg indices when folding load / store.
...
llvm-svn: 85048
2009-10-25 07:52:27 +00:00
4c799e65d7
Use isIdentityCopy. Fix a bozo bug (flipped condition) in InvalidateRegDef.
...
llvm-svn: 85047
2009-10-25 07:51:47 +00:00
5d2245b210
Code clean up.
...
llvm-svn: 85046
2009-10-25 07:49:57 +00:00
19348415c4
Do not delete identity insert_subreg even if dest is virtual. Let later passes delete them. This avoids register scavenger complain.
...
llvm-svn: 85045
2009-10-25 07:48:51 +00:00
974e12b2d3
Remove includes of Support/Compiler.h that are no longer needed after the
...
VISIBILITY_HIDDEN removal.
llvm-svn: 85043
2009-10-25 06:57:41 +00:00
02d5f77d26
Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
...
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.
llvm-svn: 85042
2009-10-25 06:33:48 +00:00
13b8b56dd4
this is done.
...
llvm-svn: 85041
2009-10-25 06:17:51 +00:00
d8e8fb4d64
Teach FoldBitCast to be able to handle bitcasts from (e.g.) i128 -> <4 x float>.
...
This allows us to simplify this:
union vec2d {
double e[2];
double v __attribute__((vector_size(16)));
};
typedef union vec2d vec2d;
static vec2d a={{1,2}}, b={{3,4}};
vec2d foo () {
return (vec2d){ .v = a.v + b.v * (vec2d){{5,5}}.v };
}
down to:
define %0 @foo() nounwind ssp {
entry:
%mrv5 = insertvalue %0 undef, double 1.600000e+01, 0 ; <%0> [#uses=1]
%mrv6 = insertvalue %0 %mrv5, double 2.200000e+01, 1 ; <%0> [#uses=1]
ret %0 %mrv6
}
instead of:
define %0 @foo() nounwind ssp {
entry:
%mrv5 = insertvalue %0 undef, double extractelement (<2 x double> fadd (<2 x double> fmul (<2 x double> bitcast (<1 x i128> <i128 85174437667405312423031577302488055808> to <2 x double>), <2 x double> <double 3.000000e+00, double 4.000000e+00>), <2 x double> <double 1.000000e+00, double 2.000000e+00>), i32 0), 0 ; <%0> [#uses=1]
%mrv6 = insertvalue %0 %mrv5, double extractelement (<2 x double> fadd (<2 x double> fmul (<2 x double> bitcast (<1 x i128> <i128 85174437667405312423031577302488055808> to <2 x double>), <2 x double> <double 3.000000e+00, double 4.000000e+00>), <2 x double> <double 1.000000e+00, double 2.000000e+00>), i32 1), 1 ; <%0> [#uses=1]
ret %0 %mrv6
}
llvm-svn: 85040
2009-10-25 06:15:37 +00:00
9d051246eb
move FoldBitCast earlier in the file, and use it instead of
...
ConstantExpr::getBitCast in various places.
llvm-svn: 85039
2009-10-25 06:08:26 +00:00
c5fd5ad4aa
refactor FoldBitCast to reduce nesting and to always return a constantexpr
...
instead of returning null on failure. No functionality change.
llvm-svn: 85038
2009-10-25 06:02:57 +00:00
54d7179a25
Remove ICmpInst::isSignedPredicate which was a reimplementation
...
CmpInst::isSigned.
llvm-svn: 85037
2009-10-25 05:20:17 +00:00
7494b3b1d4
Sink isTrueWhenEqual from ICmpInst to CmpInst. Add a matching isFalseWhenEqual
...
which is equal to !isTrueWhenEqual for ints but not for floats.
llvm-svn: 85036
2009-10-25 03:50:03 +00:00
5027d359e7
When the scavenger is looking for a good candidate location to restore from a
...
spill, it should avoid doing so inside the live range of a virtual register.
llvm-svn: 85026
2009-10-25 00:45:07 +00:00
ef41a1ce3c
MapValue doesn't needs its LLVMContext argument.
...
llvm-svn: 85020
2009-10-24 23:37:16 +00:00
8f4078ba39
Rename isLoopExit to isLoopExiting, for consistency with the wording
...
used elsewhere - an exit block is a block outside the loop branched to
from within the loop. An exiting block is a block inside the loop that
branches out.
llvm-svn: 85019
2009-10-24 23:34:26 +00:00
b979794e4b
Rewrite LoopRotation's SSA updating code using SSAUpdater.
...
llvm-svn: 85016
2009-10-24 23:19:52 +00:00
2cbca4e229
Make DominanceFrontierBase::print's output prettier.
...
llvm-svn: 85011
2009-10-24 20:01:11 +00:00
9e8d42f295
Revert back 85006 for now as it breaks PIC16 tests.
...
llvm-svn: 85008
2009-10-24 18:19:41 +00:00
055c3305a1
Adding support for placing global objects in shared data memory.
...
llvm-svn: 85006
2009-10-24 18:02:44 +00:00
3db7bd27c2
various cleanups suggested by Duncan
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llvm-svn: 84993
2009-10-24 05:27:19 +00:00
9e2d5b3b8e
fix PR5287, a serious regression from my previous patches. Thanks to
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Duncan for the nice tiny testcase.
llvm-svn: 84992
2009-10-24 05:22:15 +00:00
e297149e26
Auto-upgrade free instructions to calls to the builtin free function.
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Update all analysis passes and transforms to treat free calls just like FreeInst.
Remove RaiseAllocations and all its tests since FreeInst no longer needs to be raised.
llvm-svn: 84987
2009-10-24 04:23:03 +00:00
46ed1f8341
80 col violation.
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llvm-svn: 84986
2009-10-24 02:07:42 +00:00
b4a1347be2
Add some asserts to catch copyRegToReg() fails early
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llvm-svn: 84983
2009-10-24 00:27:00 +00:00
e2871d69db
Restrict Thumb1 register allocation to low registers, even for instructions that
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can access the hi regs. Our prologue and epilogue code doesn't know how to
properly handle save/restore of the hi regs, so things go badly when we alloc
them.
llvm-svn: 84982
2009-10-24 00:19:24 +00:00
d638bc310a
Identity copies should not contribute to spill weight.
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llvm-svn: 84978
2009-10-23 23:09:19 +00:00
22b2c011f9
FIXME no longer applies. R12 and R3 are available for allocation
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llvm-svn: 84977
2009-10-23 23:07:42 +00:00
d0fc8f809a
Fix http://llvm.org/PR4822 : allow module deletion after a function has been
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compiled.
When functions are compiled, they accumulate references in the JITResolver's
stub maps. This patch removes those references when the functions are
destroyed. It's illegal to destroy a Function when any thread may still try to
call its machine code.
This patch also updates r83987 to use ValueMap instead of explicit CallbackVHs
and fixes a couple "do stuff inside assert()" bugs from r84522.
llvm-svn: 84975
2009-10-23 22:37:43 +00:00
8acf2956b8
Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.
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llvm-svn: 84969
2009-10-23 21:09:37 +00:00
4ef112be62
APInt-ify the gep scaling code, so that it correctly handles the case where
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the scale overflows pointer-sized arithmetic. This fixes PR5281.
llvm-svn: 84954
2009-10-23 17:57:43 +00:00
41d00ac45b
Make LoopDeletion check the maximum backedge taken count, rather than the
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exact backedge taken count, when checking for infinite loops. This allows
it to delete loops with multiple exit conditions.
llvm-svn: 84952
2009-10-23 17:10:01 +00:00
851193b873
some stuff is done, we still have constantexpr simplification to do.
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llvm-svn: 84943
2009-10-23 07:00:55 +00:00
ccf1e84779
teach libanalysis to simplify vector loads with bitcast sources. This
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implements something out of Target/README.txt producing:
_foo: ## @foo
movl 4(%esp), %eax
movapd LCPI1_0, %xmm0
movapd %xmm0, (%eax)
ret $4
instead of:
_foo: ## @foo
movl 4(%esp), %eax
movapd _b, %xmm0
mulpd LCPI1_0, %xmm0
addpd _a, %xmm0
movapd %xmm0, (%eax)
ret $4
llvm-svn: 84942
2009-10-23 06:57:37 +00:00
59f94c01dd
enhance FoldReinterpretLoadFromConstPtr to handle loads of up to 32
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bytes (i256).
llvm-svn: 84941
2009-10-23 06:50:36 +00:00
ed00b80bf8
teach libanalysis to fold int and fp loads from almost arbitrary
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non-type-safe constant initializers. This sort of thing happens
quite a bit for 4-byte loads out of string constants, unions,
bitfields, and an interesting endianness check from sqlite, which
is something like this:
const int sqlite3one = 1;
# define SQLITE_BIGENDIAN (*(char *)(&sqlite3one)==0)
# define SQLITE_LITTLEENDIAN (*(char *)(&sqlite3one)==1)
# define SQLITE_UTF16NATIVE (SQLITE_BIGENDIAN?SQLITE_UTF16BE:SQLITE_UTF16LE)
all of these macros now constant fold away.
This implements PR3152 and is based on a patch started by Eli, but heavily
modified and extended.
llvm-svn: 84936
2009-10-23 06:23:49 +00:00
8b86efefec
X86 needs critical path anti-dependency breaking.
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llvm-svn: 84931
2009-10-23 05:57:35 +00:00
0d670b5b92
Commit fixes for half precision I noted in review, so
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they don't get lost; I don't think the originator has
write access.
llvm-svn: 84928
2009-10-23 04:02:51 +00:00
2981d1b93d
Minor code cleanup.
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llvm-svn: 84919
2009-10-23 00:59:10 +00:00
6aea1a2a5a
Neuter stack protectors by only checking character arrays. This is what GCC
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does.
llvm-svn: 84916
2009-10-23 00:01:05 +00:00
02ad4cb32e
Allow the target to select the level of anti-dependence breaking that should be performed by the post-RA scheduler. The default is none.
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llvm-svn: 84911
2009-10-22 23:19:17 +00:00
b5cd6233b1
Use 'waitpid' instead of 'wait'. Basing Program::Wait() on 'wait()' prevents it being correct within a multithreaded context.
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This address: PR 5277 (Program::Wait is unsafe to call from multiple threads).
Note: If waitpid() turns out to be non-portable, we can add more autoconf magic, or look into
another solution.
llvm-svn: 84903
2009-10-22 22:16:17 +00:00
ab304c9237
Random include cleanup.
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llvm-svn: 84898
2009-10-22 21:49:41 +00:00
86dfc11cdf
Fix OProfileJITEventListener after r84054 renamed CompileUnit to Scope.
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llvm-svn: 84895
2009-10-22 20:57:35 +00:00
4f0b8d7861
Tidying up some code and comments. No functionality change.
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llvm-svn: 84894
2009-10-22 20:48:59 +00:00
1155fdf6dc
Hide MetadataContext implementation details.
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llvm-svn: 84886
2009-10-22 19:36:54 +00:00
6da5dbf3c2
Fix getMDs() interface such that it does not expose implementation details.
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llvm-svn: 84885
2009-10-22 18:55:16 +00:00
084679e70a
Using TrackingVH instead of WeakVH or WeakMetadataVH.
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llvm-svn: 84884
2009-10-22 18:25:28 +00:00
09c319e269
Sort handler names to ensure deterministic behavior.
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llvm-svn: 84878
2009-10-22 17:40:37 +00:00
9d763cc3f8
Revert 84843. Evan, this was breaking some of the if-conversion tests.
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llvm-svn: 84868
2009-10-22 16:52:21 +00:00
7e8017cce7
Verify that the function and exception table have been allocated
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before freeing them.
llvm-svn: 84859
2009-10-22 14:35:57 +00:00
c77f8634e5
Shift art to the right to keep GCC from complaining about multi-line comments.
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llvm-svn: 84849
2009-10-22 09:28:49 +00:00
3615b9bef3
Move if-conversion before post-regalloc scheduling so the predicated instruction get scheduled properly.
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llvm-svn: 84843
2009-10-22 06:48:32 +00:00
943f4f41f2
Load / store multiple was missing opportunites when the load / store bundles are at the end of the bb. Test case is already in, the bug is exposed by subsequent commit.
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llvm-svn: 84842
2009-10-22 06:47:35 +00:00
cf7e8947e9
move another load optimization from instcombine -> libanalysis.
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llvm-svn: 84841
2009-10-22 06:44:07 +00:00
51d2f70e32
move 'loading i32 from string' optimization from instcombine
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to libanalysis. Instcombine shrinking... does this even
make sense???
llvm-svn: 84840
2009-10-22 06:38:35 +00:00
1664a4fd86
Move some constant folding logic for loads out of instcombine into
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Analysis/ConstantFolding.cpp. This doesn't change the behavior of
instcombine but makes other clients of ConstantFoldInstruction
able to handle loads. This was partially extracted from Eli's patch
in PR3152.
llvm-svn: 84836
2009-10-22 06:25:11 +00:00
Chris Lattner