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.
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llvm-svn: 85178
2009-10-26 23:45:59 +00:00
de5ad42aa1
Remove FreeInst.
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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
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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.
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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
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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.
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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.
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llvm-svn: 85161
2009-10-26 22:06:01 +00:00
3b7ba5f35b
Teach BasicAA how to analyze Select instructions, and make it more
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aggressive on PHI instructions.
llvm-svn: 85158
2009-10-26 21:55:43 +00:00
661ea989e9
Define virtual destructor in *.cpp file.
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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.
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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
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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
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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.
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llvm-svn: 85134
2009-10-26 18:22:59 +00:00
d6dd2a0840
Do not use expensive sort().
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llvm-svn: 85130
2009-10-26 17:09:00 +00:00
8370485db9
Break anti-dependence breaking out into its own class.
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llvm-svn: 85127
2009-10-26 16:59:04 +00:00
c80b5c8707
Add support to encode type info using llvm::Constant.
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Patch by Talin!
llvm-svn: 85126
2009-10-26 16:54:35 +00:00
6a10d5ebd3
Fix a typo in a comment.
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llvm-svn: 85120
2009-10-26 15:55:24 +00:00
683eed3286
reapply r85085 with a bugfix to avoid infinite looping.
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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
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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.
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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
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direct inclusion edge from System to Support.
llvm-svn: 85086
2009-10-26 01:35:46 +00:00
2e6564d6ff
Implement PR3266 & PR5276, folding:
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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
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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.
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llvm-svn: 85078
2009-10-25 23:11:06 +00:00
f4c2a9f02a
fix PR5186: the JIT shouldn't try to codegen available_externally
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functions it should just look them up like declarations.
llvm-svn: 85077
2009-10-25 23:06:42 +00:00
083524ae5c
Remove unused includes.
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llvm-svn: 85074
2009-10-25 22:38:41 +00:00
5bde1cbd93
of -> or
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llvm-svn: 85065
2009-10-25 19:14:48 +00:00
5a9788b979
80-column cleanup
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llvm-svn: 85064
2009-10-25 18:55:46 +00:00
b18a46806b
Reapply 85006 with a minor fix.
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llvm-svn: 85052
2009-10-25 08:14:11 +00:00
2e7dee5f23
Add ARM getMatchingSuperRegClass to handle S / D / Q cross regclass coalescing.
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llvm-svn: 85049
2009-10-25 07:53:28 +00:00
5d1b849658
Don't forget subreg indices when folding load / store.
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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.
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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.
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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
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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.
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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>.
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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
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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
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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
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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
Owen Anderson