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20279 Commits

Author SHA1 Message Date
Dale Johannesen
910993e8dc 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42210 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 22:09:37 +00:00
Devang Patel
3f65f02d25 Fix PR1692 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42209 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 21:18:19 +00:00
Chris Lattner
27725bf13f #ifdef out unsafe tracing code, which fixes PR1689 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42205 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 18:30:39 +00:00
Chris Lattner
c369bd7c50 don't read Block after it is freed. This fixes PR1684 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 18:25:53 +00:00
Chris Lattner
dfe8934258 initialize SetCCResultContents, fixing PR1693 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42193 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 17:06:39 +00:00
Rafael Espindola
a37ac9ff53 Don't add a default STACK_ALIGN (use the generic ABI alignment) 
Implement calls to functions with byval arguments on X86


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42192 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 15:50:22 +00:00
Rafael Espindola
1242d28093 small cleanup: use LowerMemArgument in LowerFastCCArguments also 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42189 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 14:55:38 +00:00
Owen Anderson
ce4d88aa64 Add partial caching of non-local memory dependence queries. This provides a modest 
speedup for GVN.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42185 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 03:53:52 +00:00
Evan Cheng
76a4023096 Honor user-defined section specification of a global, ignores whether its initializer is null. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42182 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-21 00:41:19 +00:00
Dale Johannesen
a72a5a095d Fix PR 1688. See comments there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42181 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 23:47:58 +00:00
Devang Patel
9ee49c541b Update aux. info associated with an instruction before erasing instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42180 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 23:45:50 +00:00
Devang Patel
0f0daea654 Do not override user specified section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42179 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 23:07:37 +00:00
Devang Patel
d15dd8c525 Don't increment invalid iterator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42178 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 23:01:50 +00:00
Dale Johannesen
4bf6ac5f40 Fix dumb regression in constant folding (Regression/C/casts) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42165 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 16:50:21 +00:00
Dan Gohman
a4ddacf60b Fix several more entries in the x86 reload/remat folding tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42162 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 14:17:21 +00:00
Dale Johannesen
41de436ca3 another long double buglet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42159 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 01:27:54 +00:00
Nick Lewycky
e29578afd5 Fix optimization. %x = sub %x, %y does not imply that %y is zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42157 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 00:48:36 +00:00
Evan Cheng
17207ddf38 Enable if-conversion for ARM by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42156 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-20 00:48:22 +00:00
Dale Johannesen
73328d14ac More long double fixes. x86_64 should build now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42155 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 23:55:34 +00:00
Evan Cheng
e71bff7405 Avoid referencing deleted instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42153 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 21:48:07 +00:00
Devang Patel
f2038b1d93 Avoid unsafe promotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42149 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 20:18:51 +00:00
Evan Cheng
fab7eff0fa PSHUFDmi, etc. are actually folding a load, not a store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42147 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 19:02:47 +00:00
Dale Johannesen
f4d4832724 Fix longdouble -> uint conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42143 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 17:53:26 +00:00
Chris Lattner
6693da003b reject things like "declare internal @foo" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42140 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 17:14:45 +00:00
Owen Anderson
742f9b6682 Add a flag to mark a dirty cache entry. This is not yet used, but will eventually 
help non-local memdep caching.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42137 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 16:13:57 +00:00
Dale Johannesen
ac1220551f Fix some long double issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42133 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 14:22:58 +00:00
Duncan Sands
46318cdfd0 Improve comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42132 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 10:25:38 +00:00
Duncan Sands
7801644332 Partial fix for PR1678: correct some parts of constant 
fold that were missed in the fix for PR1646.  Probably
this null/not-null logic should be factorized somewhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42131 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 10:16:17 +00:00
Duncan Sands
892c7e4a23 A global variable with external weak linkage can be null, while 
an alias could alias such a global variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42130 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 10:10:31 +00:00
Evan Cheng
713a98dee8 Use struct SDep instead of std::pair for SUnit pred and succ lists. First step 
in tracking physical register output dependencies.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42125 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 01:38:40 +00:00
Evan Cheng
dcfa73fe3c Set CCR (EFLAGS) copy cost to -1, i.e. extremely expensive to copy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42124 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 01:36:39 +00:00
Evan Cheng
a3ca3149f2 Add CopyCost to TargetRegisterClass. This specifies the cost of copying a value 
between two registers in the specific class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42123 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 01:35:01 +00:00
Devang Patel
babbe27007 Relax loop ExitCondition predicate restriction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42122 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 00:28:47 +00:00
Devang Patel
968eee2aa7 Filter loops where split condition's false branch is not empty. For example 
for (int i = 0; i < N; ++i) {
  if (i == somevalue)
    dosomething();
   else
    dosomethingelse();
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42121 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 00:15:16 +00:00
Devang Patel
84ef08bfee Bail out early, before modifying anything. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42120 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 00:11:01 +00:00
Devang Patel
4e062e520a Work is incomplete. Loop is not modified at all right now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42119 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-19 00:08:13 +00:00
Devang Patel
0f2fb60a18 ooops... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42118 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 23:58:14 +00:00
Evan Cheng
e0480d2ec2 Fix a bogus splat xform: 
shuffle <undef, undef, x, undef>, <undef, undef, undef, undef>, <2, 2, 2, 2>
!=
<undef, undef, x, undef>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42111 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 21:54:37 +00:00
Dale Johannesen
c7b21d520a Prevent crash on long double. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42103 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 18:36:59 +00:00
Gordon Henriksen
344be5fbec Tests of the ocaml (and thus C) bindings for constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42101 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 18:07:51 +00:00
Dan Gohman
869b2b2c23 Move the entries for 64-bit CMP, IMUL, and a few others into the correct 
tables so that they are eligible for reload/remat folding. And add
entries for JMP and CALL.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42094 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 14:59:14 +00:00
Gordon Henriksen
b5085212b0 Incorporating review feedback for GC verifier patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42087 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 10:14:30 +00:00
Bill Wendling
ce613280f9 Don't pass back a reference to a temporary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42086 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 09:10:16 +00:00
Bill Wendling
5f19cf5df8 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42078 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 05:03:44 +00:00
Gordon Henriksen
8b94a14a78 C bindings for libLLVMCore.a and libLLVMBitWriter.a. 
- The naming prefix is LLVM.
- All types are represented using opaque references.
- Functions are not named LLVM{Type}{Method}; the names became
  unreadable goop. Instead, they are named LLVM{ImperativeSentence}.
- Where an attribute only appears once in the class hierarchy (e.g.,
  linkage only applies to values; parameter types only apply to
  function types), the class is omitted from identifiers for
  brevity. Tastes like methods.
- Strings are C strings or string/length tuples on a case-by-case
  basis.
- APIs which give the caller ownership of an object are not mapped
  (removeFromParent, certain constructor overloads). This keeps
  keep memory management as simple as possible.

For each library with bindings:

  llvm-c/<LIB>.h       - Declares the bindings.
  lib/<LIB>/<LIB>.cpp  - Implements the bindings.

So just link with the library of your choice and use the C header
instead of the C++ one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42077 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 03:18:57 +00:00
Devang Patel
e3bfb88898 Fix PR1657 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42075 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 01:54:42 +00:00
Bill Wendling
6e19896999 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42074 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-18 01:47:22 +00:00
Bill Wendling
ecd9137758 Add support for appending a suffix to the end of a mangled name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42071 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 22:39:32 +00:00
Devang Patel
8feb1f4467 Do not hide APInt::dump() inside #ifndef NDEBUG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42068 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 22:24:00 +00:00
Devang Patel
8893ca6dab Do not eliminate loop when it is invalid to do so. For example, 
for(int i = 0; i < N; i++) {
	if ( i == XYZ) {
		A;
	else
		B;
	}
	C;
	D;
}



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42058 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 21:01:05 +00:00
Devang Patel
5279d064bc Skeleton for transformations to truncate loop's iteration space. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42054 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 20:39:48 +00:00
Gordon Henriksen
8c33da5dc4 Fix for PR1633: Verifier doesn't fully verify GC intrinsics 
LLVM now enforces the following prototypes for the write barriers:

<ty>* @llvm.gcread(<ty2>*, <ty>**)
void @llvm.gcwrite(<ty>*, <ty2>*, <ty>**)

And for @llvm.gcroot, the first stack slot is verified to be an alloca or a 
bitcast of an alloca.

Fixes test/CodeGen/Generic/GC/lower_gcroot.ll, which violated these.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42051 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 20:30:04 +00:00
Dale Johannesen
ca8035e356 Remove RSTRegClass case from loadRegFromStackSlot 
and storeRegToStackSlot.  Evan and I concluded this
should never be needed and it appears to be true.
(It if is needed, adjustment would be needed for
long double to work.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42049 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 20:15:38 +00:00
Devang Patel
161660e6d2 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42048 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 20:07:40 +00:00
Devang Patel
ffe3612af4 This is not ideal but unbreaks build failure. 
APInt::dump() is inside #ifndef NDEBUG, however SelectionDAG dump() routines are not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42047 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 20:03:03 +00:00
Dale Johannesen
1abac0d725 Implement x86 long double in jit (not really 
complete, but common cases work)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42043 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 18:44:13 +00:00
Chris Lattner
76c1b97e40 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42042 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 18:34:04 +00:00
Evan Cheng
7d6ff3a25d X86ISD::TEST is dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42037 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 17:42:53 +00:00
Dan Gohman
5d066ff7f0 Instcombine x-((x/y)*y) into a remainder operator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42035 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 17:31:57 +00:00
Dan Gohman
a0a7c1de9c Add 64-bit jmp instructions to the list of instructions that 
can terminate a block with no fall-through.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42029 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 15:19:08 +00:00
Dan Gohman
959062475d Use xorl instead of xorq to enter a zero into a 64-bit register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42027 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 14:55:08 +00:00
Dan Gohman
5f6913cecd Emit integer x<1 as x<=0, as comparisons with zero (now includeing 
64-bit) can use test instead of cmp with an immediate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42026 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 14:49:27 +00:00
Dan Gohman
11f7bfbb83 Use "test reg,reg" in place of "cmp reg,0" for 64-bit operands. This was 
previously only done for 32-bit and smaller operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42024 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 14:35:24 +00:00
Duncan Sands
cdb6d929d0 Factor the trampoline transformation into a subroutine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42021 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 10:26:40 +00:00
Dale Johannesen
53f0bc1b25 Implement x86 long double (uses host long double, 
so only works on x86 target).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42019 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-17 00:38:27 +00:00
Daniel Berlin
c6d939818b Fix bug in andersen's related to test_and_set. 
Add operator == and != to SparseBitVector.
Simplify code for test_and_set


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42018 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-16 23:59:53 +00:00
Daniel Berlin
aad158891c Rewrite of andersen's to be about 100x faster, cleaner, and begin to support field sensitivity 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42016 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-16 21:45:02 +00:00
Bill Wendling
bd626b885f Follow-up to patch r41999. Make the conditional that emits the personality stub 
match the conditional that turns on exception handling emittion in the asm
printer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42008 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-16 19:21:08 +00:00
Dale Johannesen
118cd9dbba Adjust per revew comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42002 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-16 16:51:49 +00:00
Bill Wendling
656ab16c56 Only emit the personality function as a global value if the backend actually 
supports it. This solves this error on the Darwin x86-64 platform:

$ cat testcase.ii
struct A {
  A();
};

A *bork() {
  return new A;
}
$ llvm-g++ -arch x86_64 -c testcase.ii
/var/tmp//cc3U8fd8.s:52:unknown section type: non_lazy_symbol_pointers
/var/tmp//cc3U8fd8.s:52:Rest of line ignored. 1st junk character valued 76 (L).
/var/tmp//cc3U8fd8.s:53:Unknown pseudo-op: .indirect_symbol
/var/tmp//cc3U8fd8.s:53:Rest of line ignored. 1st junk character valued 95 (_).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41999 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-16 10:36:17 +00:00
Owen Anderson
2486686689 Be more careful when constant-folding PHI nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41998 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-16 08:04:16 +00:00
Chris Lattner
5bda9e49ec Fix PR1666, SPASS with the CBE and 254.gap with the CBE. 
GCC optimizes away things like ptr < NULL  to false.  To "fix" this,
have the CBE emit casts of pointers to intptr_t when doing relational
pointer comparisons.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41983 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-15 06:51:03 +00:00
Dan Gohman
e47f1f9633 Add patterns for SHLD64* and SHRD64*. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41975 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 23:17:45 +00:00
Chris Lattner
2204906892 fix a gcc warning: comparison between signed and unsigned integer expressions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41972 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 22:57:00 +00:00
Owen Anderson
86f91e1757 Remove RLE. It is subsumed by GVN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41968 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 22:33:52 +00:00
Dale Johannesen
9e3d3abd93 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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41967 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 22:26:36 +00:00
Evan Cheng
24f2ea3971 Add implicit def of EFLAGS on those instructions that may modify flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41962 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 21:48:26 +00:00
Dan Gohman
f82e1e66ce And an FoldingSetImpl::NodeID::AddInteger overload for int64_t, to avoid 
ambiguity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41960 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 20:48:42 +00:00
Dan Gohman
92dfe2001e Remove isReg, isImm, and isMBB, and change all their users to use 
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41958 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 20:33:02 +00:00
Dan Gohman
693f541526 Change "tmp." to "tmp" for temporaries created by ScalarEvolutionExpander 
for consistency with many other transforms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41957 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 20:11:40 +00:00
Dan Gohman
cb648f90a2 Remove spurious consts. This fixes warnings with compilers that 
are strict about such things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41956 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 20:08:19 +00:00
Rafael Espindola
7effac5475 Add support for functions with byval arguments on x86 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41953 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 15:48:13 +00:00
Chris Lattner
5e6e494a97 Fix a logic error in ValueIsOnlyUsedLocallyOrStoredToOneGlobal that caused 
miscompilation of 188.ammp.  Reject select and bitcast in 
ValueIsOnlyUsedLocallyOrStoredToOneGlobal because RewriteHeapSROALoadUser can't handle it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41950 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 03:41:21 +00:00
Chris Lattner
ce4e748565 silence a bogus gcc warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41949 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 03:07:24 +00:00
Evan Cheng
fdd9f006bc Fix comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41947 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 01:57:02 +00:00
Bill Wendling
c68491069a Temporary reverting r41817 
(http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070910/053370.html). It's
causing SPASS to fail.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41938 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-14 01:13:55 +00:00
Chris Lattner
309f20fc45 Teach GlobalLoadUsesSimpleEnoughForHeapSRA and the SROA rewriter how to handle 
a limited form of PHI nodes.  This finally fixes PR1639, speeding 179.art up
from 7.84s to 3.13s on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41933 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 21:31:36 +00:00
Chris Lattner
a637a8b1e7 be tolerant of PHI nodes when rewriting heap SROA code. This is a step 
along the way of PR1639


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41930 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 18:00:31 +00:00
Chris Lattner
330245e90b refactor some code, no functionality change. On the path to PR1639 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41929 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 17:29:05 +00:00
Chris Lattner
c451f9c167 Make ValueIsOnlyUsedLocallyOrStoredToOneGlobal smart enough to see through 
bitcasts and phis.  This is a step to fixing PR1639.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41928 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 16:37:20 +00:00
Chris Lattner
816861803f Make AllUsesOfLoadedValueWillTrapIfNull strong enough to see through PHI 
nodes.  This is the first step of the fix for PR1639.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41927 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 16:30:19 +00:00
Chris Lattner
3d6992fc7b Fix build problems on Cygwin (PR1652), patch by Patrick Walton. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41923 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 06:09:48 +00:00
Evan Cheng
6600377546 Bug fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41900 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-13 00:06:00 +00:00
Evan Cheng
6900132813 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41899 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 23:45:46 +00:00
Evan Cheng
05e69c1f23 Yet another getTargetNode variant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41898 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 23:39:49 +00:00
Evan Cheng
85dbe1a1d2 Initial support for multi-result patterns: 
1.
[(set GR32:$dst, (add GR32:$src1, GR32:$src2)),
 (modify EFLAGS)]
This indicates the source pattern expects the instruction would produce 2 values. The first is the result of the addition. The second is an implicit definition in register EFLAGS.
2.
def : Pat<(parallel (addc GR32:$src1, GR32:$src2), (modify EFLAGS)), ()>
Similar to #1 except this is used for def : Pat patterns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41897 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 23:30:14 +00:00
Evan Cheng
0d8d31674f Fixed a typo that's causing a missing kill marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 23:02:04 +00:00
Chris Lattner
36597a5ddb Change llvm.gcroot to not init the root to null at runtime, this prevents 
using it for live-in values etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41879 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 17:53:10 +00:00
Dale Johannesen
ea58310496 Generated files for previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41876 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 03:31:28 +00:00
Dale Johannesen
9d5f456077 Revise previous patch per review comments. 
Next round of x87 long double stuff.
Getting close now, basically works.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41875 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 03:30:33 +00:00
Dale Johannesen
257500db04 Compensate for partCount change in Bogus definition 
(could break hash table in ConstantFP)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41874 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-12 01:22:05 +00:00
Bill Wendling
fe4afb17d3 Enable indirect encoding for the personality function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41873 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 23:55:40 +00:00
Evan Cheng
6d6d352ed9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41871 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 22:34:47 +00:00
Evan Cheng
071a279e94 Remove (somewhat confusing) Imp<> helper, use let Defs = [], Uses = [] instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41863 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 19:55:27 +00:00
Evan Cheng
3054dde813 Added status flags register: EFLAGS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41862 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 19:53:28 +00:00
Dale Johannesen
c72cd7e0cc Generated files for previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41859 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 18:33:39 +00:00
Dale Johannesen
3f6eb7419d 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).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 18:32:33 +00:00
Bill Wendling
ef4a661725 Add a bool to indicate if we should set the "indirect encoding" bit in the Dwarf 
information for EH.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41852 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 17:20:55 +00:00
Duncan Sands
d50dc73b89 Two ParamAttrsVectors which differ by a permutation 
of their elements do not yield the same ParamAttrsList,
though they should.  On the other hand, everyone seems
to pass such vectors with elements ordered by increasing
index, so rather than sorting the elements simply assert
that the elements are ordered in this way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41845 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 14:40:04 +00:00
Duncan Sands
b84abcd77d Turn calls to trampolines into calls to the underlying 
nested function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41844 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 14:35:41 +00:00
Duncan Sands
f7331b3dd7 Fold the adjust_trampoline intrinsic into 
init_trampoline.  There is now only one
trampoline intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41841 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 14:10:23 +00:00
Duncan Sands
49c23935e0 My compiler warns about the semicolon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41840 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 12:30:25 +00:00
Bill Wendling
d60da495cd 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41838 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 08:27:17 +00:00
Owen Anderson
0a890e2fb5 Fix a typo in memdep, which was causing PR1648. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41833 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 04:31:00 +00:00
Devang Patel
c3957d1983 Avoid negative logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41829 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 01:10:45 +00:00
Devang Patel
d35ed2c16d Refactor code into a separate method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41826 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 00:42:56 +00:00
Devang Patel
964be45e7c Clear split info object. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41823 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 00:23:56 +00:00
Devang Patel
4f12c5f615 Split condition does not have to be ICmpInst in all cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41822 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-11 00:12:56 +00:00
Devang Patel
ba32a5f3cc Check all terminators inside loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41821 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 23:57:58 +00:00
Chris Lattner
50d9d77643 remove some dead code, this is handled by constant folding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41819 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 23:46:29 +00:00
Chris Lattner
a0ef5ed742 Fix a buggy constant folding transformation when handling aliases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41818 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 23:42:42 +00:00
Devang Patel
0c0f7c935b Swap exit condition operands if it works. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 23:34:06 +00:00
Chris Lattner
569f7371d6 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 23:24:14 +00:00
Chris Lattner
e543424d9a Fix PR1645 by resolving forward alias references. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41815 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 23:23:53 +00:00
Evan Cheng
be36798bfe 80 col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41812 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 22:22:23 +00:00
Evan Cheng
f618e7c2a1 New entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41810 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 22:16:37 +00:00
Evan Cheng
2d9823875a Observation of rematerialization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41809 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 22:11:18 +00:00
Chris Lattner
bf8ae84a21 Add some notes about better flag handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41808 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 21:43:18 +00:00
Chris Lattner
61c5ff460b 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41807 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 21:39:07 +00:00
Chris Lattner
87b51bc2b0 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 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41805 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 21:15:22 +00:00
Chris Lattner
8d9455d4e4 Prevent tailcallelim from breaking "recursive" calls to builtins. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41804 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 20:58:55 +00:00
Evan Cheng
b0869ed44d It's not safe to rematerialize MOV32r0 etc. by simply cloning the original 
instruction. These are implemented with xor which will modify the conditional
code. They should be rematerialized as move instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41802 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 20:48:53 +00:00
Devang Patel
9c7a9f186c Filter exit conditions which are not yet handled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41800 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 18:33:42 +00:00
Devang Patel
bc533cd128 Require SCEV before LCSSA. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41798 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-10 18:08:23 +00:00
Owen Anderson
7fad7e3db8 Remove an un-needed dependence query. This improves compile time marginally on 401.bzip2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41792 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-09 21:43:49 +00:00
Dale Johannesen
907f28ce30 Implement misaligned FP loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41786 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-08 19:29:23 +00:00
Evan Cheng
7dfda9e674 Smarter Reset(). Instead of deallocating all memory regions and reallocate the 
first region, just deallocate all but the last region in the list.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41782 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-08 00:02:17 +00:00
Evan Cheng
ef61ed3507 TableGen no longer emit CopyFromReg nodes for implicit results in physical 
registers. The scheduler is now responsible for emitting them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41781 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 23:59:02 +00:00
Bill Wendling
82d25148a7 Add missing index versions of instructions to the map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41776 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 22:01:02 +00:00
Dan Gohman
1ab79897e2 Avoid storing and reloading zeros and other constants from stack slots 
by flagging the associated instructions as being trivially rematerializable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 21:32:51 +00:00
Dale Johannesen
cdd509aecd Apply feedback from previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41774 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 21:07:57 +00:00
Dale Johannesen
073d48da50 Revert previous change to IR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 18:31:50 +00:00
Rafael Espindola
588af2fb99 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41768 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 14:52:14 +00:00
Anton Korobeynikov
8806c7b1f5 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 :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 11:39:35 +00:00
Chris Lattner
a54c7eb157 Don't zap back to back volatile load/stores 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41759 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 05:33:03 +00:00
Owen Anderson
718cb665ca Add lengthof and endof templates that hide a lot of sizeof computations. 
Patch by Sterling Stein!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-07 04:06:50 +00:00
David Greene
af992f782f Constify to catch bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41751 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 19:46:46 +00:00
Dale Johannesen
43421b3dd7 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.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 18:13:44 +00:00
Anton Korobeynikov
325be7c608 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41746 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 17:21:48 +00:00
David Greene
04fa32f9aa Add instruction dump output. This helps find bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41744 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-09-06 16:36:39 +00:00