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Author SHA1 Message Date
Dan Gohman
7e7f34ab55 Fix a typo in a comment. 
llvm-svn: 85120
 2009-10-26 15:55:24 +00:00
Chris Lattner
7f9ddaf7e3 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
Dan Gohman
3d0c010ee4 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
Evan Cheng
4443642def - 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
Evan Cheng
7dad155ec7 Revert 85085. It causes infinite looping during llvm-gcc build. 
llvm-svn: 85090
 2009-10-26 03:51:32 +00:00
Edward O'Callaghan
43d45b084e Fix gmake check for AuroraUX triple. 
llvm-svn: 85088
 2009-10-26 02:37:56 +00:00
Chandler Carruth
766362c707 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
Chris Lattner
192549ef70 Implement PR3266 & PR5276, folding: 
not (or (icmp, icmp)) -> and(icmp, icmp)

llvm-svn: 85085
 2009-10-26 01:06:31 +00:00
Chris Lattner
c88c01adb6 convert or.ll to filecheck and merge or2 into it. 
llvm-svn: 85083
 2009-10-25 23:47:55 +00:00
Chandler Carruth
88cbba7934 Remove stale reference to ThreadSupport.h. 
llvm-svn: 85082
 2009-10-25 23:41:56 +00:00
Chris Lattner
e3508acbef 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
Daniel Dunbar
4a18e32e25 Suppress -Asserts warning. 
llvm-svn: 85078
 2009-10-25 23:11:06 +00:00
Chris Lattner
2f00168ed8 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
Chandler Carruth
6e9cf74969 Remove unused includes. 
llvm-svn: 85074
 2009-10-25 22:38:41 +00:00
Jim Grosbach
eae0e509c0 of -> or 
llvm-svn: 85065
 2009-10-25 19:14:48 +00:00
Jim Grosbach
29b842a6c1 80-column cleanup 
llvm-svn: 85064
 2009-10-25 18:55:46 +00:00
Sanjiv Gupta
18574b11b0 Reapply 85006 with a minor fix. 
llvm-svn: 85052
 2009-10-25 08:14:11 +00:00
Evan Cheng
a308ae55a5 Add a couple of ARM cross-rc coalescing tests. 
llvm-svn: 85051
 2009-10-25 08:01:41 +00:00
Evan Cheng
1c169777ca Update tests. 
llvm-svn: 85050
 2009-10-25 07:53:48 +00:00
Evan Cheng
d748ce45ab Add ARM getMatchingSuperRegClass to handle S / D / Q cross regclass coalescing. 
llvm-svn: 85049
 2009-10-25 07:53:28 +00:00
Evan Cheng
77ecc0adc5 Don't forget subreg indices when folding load / store. 
llvm-svn: 85048
 2009-10-25 07:52:27 +00:00
Evan Cheng
859d9f3b07 Use isIdentityCopy. Fix a bozo bug (flipped condition) in InvalidateRegDef. 
llvm-svn: 85047
 2009-10-25 07:51:47 +00:00
Evan Cheng
a6242a5d04 Code clean up. 
llvm-svn: 85046
 2009-10-25 07:49:57 +00:00
Evan Cheng
92ad633488 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
Evan Cheng
2a58cf4921 Add isIdentityCopy to check for identity copy (or extract_subreg, etc.) 
llvm-svn: 85044
 2009-10-25 07:47:07 +00:00
Nick Lewycky
2b8400628d 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
Nick Lewycky
711c726c97 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
Chris Lattner
81c06b943c this is done. 
llvm-svn: 85041
 2009-10-25 06:17:51 +00:00
Chris Lattner
d8db8b6952 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
Chris Lattner
d80c1f61d2 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
Chris Lattner
f6cb8d6b90 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
Nick Lewycky
cacdc4d65a Remove ICmpInst::isSignedPredicate which was a reimplementation 
CmpInst::isSigned.

llvm-svn: 85037
 2009-10-25 05:20:17 +00:00
Nick Lewycky
a16e115bd4 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
Daniel Dunbar
499815e9f9 lit: Add --config-prefix option, to override default config file names. 
llvm-svn: 85035
 2009-10-25 03:30:55 +00:00
Nick Lewycky
242c20ffde Indent. 
llvm-svn: 85034
 2009-10-25 03:22:00 +00:00
Mikhail Glushenkov
ef7afeb176 Regenerate. 
llvm-svn: 85031
 2009-10-25 01:44:24 +00:00
Mikhail Glushenkov
5f133de5c2 Document OptionPreprocessor. 
llvm-svn: 85030
 2009-10-25 01:44:11 +00:00
Mikhail Glushenkov
98921da4dd Add a test for OptionPreprocessor. 
llvm-svn: 85029
 2009-10-25 01:43:50 +00:00
Daniel Dunbar
69b298e1c2 lit: Allow use of /dev/null in redirects on Windows (replace by a temporary 
file).

llvm-svn: 85028
 2009-10-25 01:37:26 +00:00
Jim Grosbach
7af2399458 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
Dan Gohman
06621f065a Update these tests to match what Loop::print now prints. 
llvm-svn: 85021
 2009-10-24 23:52:07 +00:00
Dan Gohman
07044648b2 MapValue doesn't needs its LLVMContext argument. 
llvm-svn: 85020
 2009-10-24 23:37:16 +00:00
Dan Gohman
1e96c6acaf 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
Dan Gohman
3c62b33053 Delete a spurious semicolon. 
llvm-svn: 85018
 2009-10-24 23:24:45 +00:00
Dan Gohman
6e2d1c608b Make these tests more interesting by using 
-verify-dom-info and -verify-loop-info, which enable additional
(expensive) consistency checks.

llvm-svn: 85017
 2009-10-24 23:23:04 +00:00
Dan Gohman
477456910a Rewrite LoopRotation's SSA updating code using SSAUpdater. 
llvm-svn: 85016
 2009-10-24 23:19:52 +00:00
Daniel Dunbar
e66bb298d4 lit: Support '>>' redirections when executing scripts internally. 
llvm-svn: 85014
 2009-10-24 20:32:49 +00:00
Daniel Dunbar
59d81da39c Update CMake dependencies. 
llvm-svn: 85013
 2009-10-24 20:32:43 +00:00
Daniel Dunbar
d98eb10494 Teach macho-dump to dump UUIDs. 
llvm-svn: 85012
 2009-10-24 20:32:36 +00:00
Dan Gohman
e970f8a450 Make DominanceFrontierBase::print's output prettier. 
llvm-svn: 85011
 2009-10-24 20:01:11 +00:00