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Author SHA1 Message Date
Devang Patel
14b9a01c02 Skeleton for transformations to truncate loop's iteration space. 
llvm-svn: 42054
 2007-09-17 20:39:48 +00:00
Gordon Henriksen
fa3a5915b1 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.

llvm-svn: 42051
 2007-09-17 20:30:04 +00:00
Dale Johannesen
46adce144c 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.)

llvm-svn: 42049
 2007-09-17 20:15:38 +00:00
Devang Patel
f4411aa165 Fix comment. 
llvm-svn: 42048
 2007-09-17 20:07:40 +00:00
Devang Patel
c7cfb7ebfc This is not ideal but unbreaks build failure. 
APInt::dump() is inside #ifndef NDEBUG, however SelectionDAG dump() routines are not.

llvm-svn: 42047
 2007-09-17 20:03:03 +00:00
Dale Johannesen
9ce8a9d633 Implement x86 long double in jit (not really 
complete, but common cases work)

llvm-svn: 42043
 2007-09-17 18:44:13 +00:00
Chris Lattner
cc315726f7 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.

llvm-svn: 42042
 2007-09-17 18:34:04 +00:00
Daniel Berlin
a19af373e3 That's what i get for using carbon emacs in a terminal 
llvm-svn: 42040
 2007-09-17 18:05:59 +00:00
Daniel Berlin
d26deb0a6d Fix iterator so it doesn't sometimes report bits that aren't in the bitmap 
llvm-svn: 42039
 2007-09-17 18:04:21 +00:00
Dan Gohman
81b5cda0aa Add a utility function to SDOperand for testing if a value is unused. 
llvm-svn: 42038
 2007-09-17 17:44:31 +00:00
Evan Cheng
d7742e7939 X86ISD::TEST is dead. 
llvm-svn: 42037
 2007-09-17 17:42:53 +00:00
Chris Lattner
9a1b882091 regenerate 
llvm-svn: 42036
 2007-09-17 17:40:48 +00:00
Dan Gohman
2de5779a99 Instcombine x-((x/y)*y) into a remainder operator. 
llvm-svn: 42035
 2007-09-17 17:31:57 +00:00
Gordon Henriksen
4a96367fca Adding myself to credits. 
llvm-svn: 42032
 2007-09-17 17:04:44 +00:00
Dan Gohman
b096221b3e Add 64-bit jmp instructions to the list of instructions that 
can terminate a block with no fall-through.

llvm-svn: 42029
 2007-09-17 15:19:08 +00:00
Dan Gohman
41a6dea029 Use xorl instead of xorq to enter a zero into a 64-bit register. 
llvm-svn: 42027
 2007-09-17 14:55:08 +00:00
Dan Gohman
1aeaeec570 Emit integer x<1 as x<=0, as comparisons with zero (now includeing 
64-bit) can use test instead of cmp with an immediate.

llvm-svn: 42026
 2007-09-17 14:49:27 +00:00
Dan Gohman
b9449c9118 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.

llvm-svn: 42024
 2007-09-17 14:35:24 +00:00
Duncan Sands
901cb2662d Factor the trampoline transformation into a subroutine. 
llvm-svn: 42021
 2007-09-17 10:26:40 +00:00
Dale Johannesen
0ea2cc2e51 Implement x86 long double (uses host long double, 
so only works on x86 target).

llvm-svn: 42019
 2007-09-17 00:38:27 +00:00
Daniel Berlin
d44b2016ca Fix bug in andersen's related to test_and_set. 
Add operator == and != to SparseBitVector.
Simplify code for test_and_set

llvm-svn: 42018
 2007-09-16 23:59:53 +00:00
Daniel Berlin
688e8d9b60 Fix a few bugs related to zero'ing of elements 
llvm-svn: 42017
 2007-09-16 22:31:47 +00:00
Daniel Berlin
3625ac77e4 Rewrite of andersen's to be about 100x faster, cleaner, and begin to support field sensitivity 
llvm-svn: 42016
 2007-09-16 21:45:02 +00:00
Bill Wendling
f1335f46d4 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.

llvm-svn: 42008
 2007-09-16 19:21:08 +00:00
Dale Johannesen
78628a9108 Adjust per revew comments. 
llvm-svn: 42002
 2007-09-16 16:51:49 +00:00
Bill Wendling
7932341cef 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 (_).

llvm-svn: 41999
 2007-09-16 10:36:17 +00:00
Owen Anderson
fd6ec5cf82 Be more careful when constant-folding PHI nodes. 
llvm-svn: 41998
 2007-09-16 08:04:16 +00:00
Chris Lattner
890c3898e0 remove obsolete tests. 
llvm-svn: 41984
 2007-09-15 17:38:04 +00:00
Chris Lattner
1b622ad721 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.

llvm-svn: 41983
 2007-09-15 06:51:03 +00:00
Chris Lattner
489e7aa85f New testcase for PR1662. GCC trees are horrible :( 
llvm-svn: 41979
 2007-09-15 05:46:41 +00:00
Dan Gohman
df419c2b4f Add patterns for SHLD64* and SHRD64*. 
llvm-svn: 41975
 2007-09-14 23:17:45 +00:00
Chris Lattner
bb109aed3d fix a gcc warning: comparison between signed and unsigned integer expressions 
llvm-svn: 41972
 2007-09-14 22:57:00 +00:00
Owen Anderson
a37895cfee Remove RLE from the headers, since the pass itself is gone now. 
llvm-svn: 41971
 2007-09-14 22:54:46 +00:00
Owen Anderson
fe5adad9c4 Remove RLE. It is subsumed by GVN. 
llvm-svn: 41968
 2007-09-14 22:33:52 +00:00
Dale Johannesen
575bd6070a 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).

llvm-svn: 41967
 2007-09-14 22:26:36 +00:00
Evan Cheng
13797e4a74 Add implicit def of EFLAGS on those instructions that may modify flags. 
llvm-svn: 41962
 2007-09-14 21:48:26 +00:00
Dan Gohman
1c9bf0bfb9 And an FoldingSetImpl::NodeID::AddInteger overload for int64_t, to avoid 
ambiguity.

llvm-svn: 41960
 2007-09-14 20:48:42 +00:00
Dan Gohman
27ab14af9b Add explicit triples to avoid default behavior that varies by host. 
llvm-svn: 41959
 2007-09-14 20:37:18 +00:00
Dan Gohman
fb60c0dfed Remove isReg, isImm, and isMBB, and change all their users to use 
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.

llvm-svn: 41958
 2007-09-14 20:33:02 +00:00
Dan Gohman
5f29ab68e1 Change "tmp." to "tmp" for temporaries created by ScalarEvolutionExpander 
for consistency with many other transforms.

llvm-svn: 41957
 2007-09-14 20:11:40 +00:00
Dan Gohman
53119779c2 Remove spurious consts. This fixes warnings with compilers that 
are strict about such things.

llvm-svn: 41956
 2007-09-14 20:08:19 +00:00
Rafael Espindola
5d8b225881 Add support for functions with byval arguments on x86 
llvm-svn: 41953
 2007-09-14 15:48:13 +00:00
Chris Lattner
601d09bf08 Fix a logic error in ValueIsOnlyUsedLocallyOrStoredToOneGlobal that caused 
miscompilation of 188.ammp.  Reject select and bitcast in 
ValueIsOnlyUsedLocallyOrStoredToOneGlobal because RewriteHeapSROALoadUser can't handle it.

llvm-svn: 41950
 2007-09-14 03:41:21 +00:00
Chris Lattner
9c3cd36dd0 silence a bogus gcc warning. 
llvm-svn: 41949
 2007-09-14 03:07:24 +00:00
Evan Cheng
3aafca793b Fix comments. 
llvm-svn: 41947
 2007-09-14 01:57:02 +00:00
Tanya Lattner
d189942f01 Change to 2.2svn. 
llvm-svn: 41941
 2007-09-14 01:24:13 +00:00
Bill Wendling
843ac5aebe Temporary reverting r41817 
(http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070910/053370.html). It's
causing SPASS to fail.

llvm-svn: 41938
 2007-09-14 01:13:55 +00:00
Chris Lattner
f3448236f8 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.

llvm-svn: 41933
 2007-09-13 21:31:36 +00:00
Chris Lattner
c5d83b7270 be tolerant of PHI nodes when rewriting heap SROA code. This is a step 
along the way of PR1639

llvm-svn: 41930
 2007-09-13 18:00:31 +00:00
Chris Lattner
c9f2f2dd92 refactor some code, no functionality change. On the path to PR1639 
llvm-svn: 41929
 2007-09-13 17:29:05 +00:00