b874bd9f41
Really, really fix PointerUnion3::is
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llvm-svn: 68079
2009-03-31 00:34:31 +00:00
adccd30533
Except in asm-verbose mode, avoid printing labels for blocks that are
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only reachable via fall-through edges. This dramatically reduces the
number of labels printed, and thus also the number of labels the
assembler must parse and remember.
llvm-svn: 68073
2009-03-30 22:55:17 +00:00
6e68bd007a
Loop Index Split can eliminate a loop if it can determin if loop body is executed only once. There was a bug in determining IV based value of the iteration for which the loop body is executed. Fix it.
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llvm-svn: 68071
2009-03-30 22:24:10 +00:00
d33a33cedb
Make PointerUnion3::get work properly
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llvm-svn: 68067
2009-03-30 21:44:13 +00:00
a84a318873
When optimzing a mul by immediate into two, the resulting mul's should get a x86 specific node to avoid dag combiner from hacking on them further.
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llvm-svn: 68066
2009-03-30 21:36:47 +00:00
09f5be8146
Turn a 2-address instruction into a 3-address one when it's profitable even if the two-address operand is killed.
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e.g.
%reg1024<def> = MOV r1
%reg1025<def> = ADD %reg1024, %reg1026
r0 = MOV %reg1025
If it's not possible / profitable to commute ADD, then turning ADD into a LEA saves a copy.
llvm-svn: 68065
2009-03-30 21:34:07 +00:00
32f4959ee4
update comment.
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llvm-svn: 68060
2009-03-30 20:44:04 +00:00
2f52e6488f
Balance out quote in debug output.
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llvm-svn: 68059
2009-03-30 20:32:22 +00:00
5f0d97c571
Fix grammar-o in comment.
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llvm-svn: 68057
2009-03-30 20:30:02 +00:00
8aa8f5bf6a
add a PointerUnion3 class and generalize PointerUnion to work with
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anything pointer-like, which may or may not actually be a pointer.
llvm-svn: 68056
2009-03-30 20:29:27 +00:00
73acaa8862
fix the PointerLikeTypeTraits specialization for PointerIntPair to
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allow the traits to be specified as well.
llvm-svn: 68055
2009-03-30 20:28:50 +00:00
ff62c62b7c
Constify arguments in isSuccessor and isLayoutSuccessor.
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llvm-svn: 68054
2009-03-30 20:06:29 +00:00
d3899dc52f
Update the polygen grammer to reflect that zext and sext are no longer
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valid argument attributes (zeroext and signext are).
llvm-svn: 68053
2009-03-30 19:59:02 +00:00
169927e7ef
docs/TestingGuide.html: correction to prev. text (objdir!=srcdir required for running test-suite), removed refs to llvm-test
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llvm-svn: 68051
2009-03-30 18:56:53 +00:00
57178e8822
Fix comment to match function name.
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llvm-svn: 68050
2009-03-30 18:49:37 +00:00
7a78f3abd3
getEntryFor() may invalidate DenseMap iterator.
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Walking an invalidated iterator is not a good idea.
llvm-svn: 68047
2009-03-30 18:34:47 +00:00
9d98cc6b93
Add ccc back for now.
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llvm-svn: 68038
2009-03-30 17:43:04 +00:00
1a7432742c
Clearify local/global relocations wording
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llvm-svn: 68037
2009-03-30 17:38:00 +00:00
56709fdffe
Fix thinko: put stuff with both global and local relocations into data.rel{.ro}, not .local
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llvm-svn: 68036
2009-03-30 17:37:43 +00:00
71278a5be8
Tweak test for recent relro stuff
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llvm-svn: 68035
2009-03-30 15:28:40 +00:00
255a3cbfb4
Fix infinite looping
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llvm-svn: 68034
2009-03-30 15:28:21 +00:00
d5e8e93a92
Properly propagate Kind.
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llvm-svn: 68033
2009-03-30 15:28:00 +00:00
7c5f3c40ca
Do not propagate ELF-specific stuff (data.rel) into other targets. This simplifies code and also ensures correctness.
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llvm-svn: 68032
2009-03-30 15:27:43 +00:00
c247fd396c
Add data.rel stuff
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llvm-svn: 68031
2009-03-30 15:27:03 +00:00
a01a563813
fix some validation problems.
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llvm-svn: 68026
2009-03-30 06:34:59 +00:00
471ed6e460
Forgot this test.
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llvm-svn: 68025
2009-03-30 06:17:34 +00:00
b92a76ff4f
Clarify section on setting up and running test-suite
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llvm-svn: 68023
2009-03-30 04:37:51 +00:00
d326656d9c
Updated the comment for isArithmeticShift() to match reality.
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llvm-svn: 68016
2009-03-29 20:41:38 +00:00
8fde3036bf
Constify check. This fixes PR3900.
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llvm-svn: 68013
2009-03-29 20:08:56 +00:00
f3cf04f900
Testcase for recent ro/relocs stuff
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llvm-svn: 68008
2009-03-29 17:14:57 +00:00
bea241a5f5
IA64 is as weird as Alpha wrt r/o relocs :)
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llvm-svn: 68007
2009-03-29 17:14:35 +00:00
014a86f216
Alpha always requires global relocations to be r/w regardless of PIC.
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llvm-svn: 68006
2009-03-29 17:14:14 +00:00
088ebede53
Honour relocation behaviour stuff for ro objects
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llvm-svn: 68005
2009-03-29 17:13:49 +00:00
7437b59caf
Extend the relocation tracker handler, so we can filter on different 'kinds' of relocations required.
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llvm-svn: 68004
2009-03-29 17:13:18 +00:00
d21581eaa1
Fix PR3899: add support for extracting floats from vectors
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when using -soft-float.
Based on a patch by Jakob Stoklund Olesen.
llvm-svn: 67996
2009-03-29 13:51:06 +00:00
6694cdf215
add missing space.
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llvm-svn: 67995
2009-03-29 13:26:05 +00:00
5b52baeeef
add some comments, add a dyn_cast method.
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llvm-svn: 67992
2009-03-29 07:03:30 +00:00
e50f47971b
When forming sentinels for empty/tombstone, make sure to respect the
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pointer's expected number of zero low-bits.
This should fix the breakage I introduced recently.
llvm-svn: 67990
2009-03-29 06:33:22 +00:00
3a6dc751ac
add helper method.
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llvm-svn: 67989
2009-03-29 06:32:46 +00:00
a9c6de15fb
Add a simple type-safe bit-mangling pointer union class. This allows
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you to do things like:
/// PointerUnion<int*, float*> P;
/// P = (int*)0;
/// printf("%d %d", P.is<int*>(), P.is<float*>()); // prints "1 0"
/// X = P.get<int*>(); // ok.
/// Y = P.get<float*>(); // runtime assertion failure.
/// Z = P.get<double*>(); // does not compile.
/// P = (float*)0;
/// Y = P.get<float*>(); // ok.
/// X = P.get<int*>(); // runtime assertion failure.
llvm-svn: 67987
2009-03-29 06:06:02 +00:00
35c0232cb0
Allow a specific PointerIntPair instance to use a specific Pointer trait:
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some pointer instances have properties that not all of a type have.
llvm-svn: 67986
2009-03-29 06:02:20 +00:00
d4ff5fce81
Add a PointerLikeTypeTraits specialization for uintptr_t
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llvm-svn: 67985
2009-03-29 06:00:21 +00:00
9bb25a192a
Value* only has 2 bits free as well.
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llvm-svn: 67984
2009-03-29 05:45:43 +00:00
eb71b17705
Replace the PointerLikeTypeTraits::getNumLowBitsAvailable
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function with a new NumLowBitsAvailable enum, which makes the
value available as an integer constant expression.
Add PointerLikeTypeTraits specializations for Instruction* and
Use** since they are only guaranteed 4-byte aligned.
Enhance PointerIntPair to know about (and enforce) the alignment
specified by PointerLikeTypeTraits. This should allow things
like PointerIntPair<PointerIntPair<void*, 1,bool>, 1, bool>
because the inner one knows that 2 low bits are free.
llvm-svn: 67979
2009-03-29 04:32:37 +00:00
a00f0d7e4c
rename PointerLikeTypeInto to PointerLikeTypeTraits, add trait for
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# low bits free, and move to its own header.
llvm-svn: 67973
2009-03-29 00:39:30 +00:00
8eda11bd9d
now that you can put a PointerIntPair in a SmallPtrSet, remove some
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hackish workarounds from memdep
llvm-svn: 67971
2009-03-29 00:24:04 +00:00
dc2999b4df
teach SmallPtrSet that PointerIntPair is "basically a pointer".
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llvm-svn: 67970
2009-03-29 00:18:42 +00:00
356d974a93
add a note
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llvm-svn: 67953
2009-03-28 19:26:55 +00:00
1f11c3c36f
Use array_lengthof
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llvm-svn: 67950
2009-03-28 19:02:18 +00:00
6ff3dabbb4
Have only one definition of X86AddrNumOperands.
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llvm-svn: 67949
2009-03-28 18:55:31 +00:00
Douglas Gregor