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Author SHA1 Message Date
Dan Gohman
fb76fe0929 Fix various doxygen warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96779 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 04:10:52 +00:00
Dan Gohman
b4e8aabba7 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96778 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 04:09:26 +00:00
Dan Gohman
6b617a7213 Constant-fold certain comparisons with infinity and negative infinity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96777 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 04:06:03 +00:00
Dan Gohman
31a95c524c Rename a variable to avoid a -Wshadow warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96776 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 04:04:24 +00:00
Dan Gohman
8ce05daf54 Remove the logic for reasoning about NaNs from the code that forms 
SSE min and max instructions. The real thing this code needs to be
concerned about is negative zero.

Update the sse-minmax.ll test accordingly, and add tests for
-enable-unsafe-fp-math mode as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96775 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 04:03:39 +00:00
Dan Gohman
278f958c61 When emitting an instruction which depends on both a post-incremented 
induction variable value and a loop-variant value, don't force the
insert position to be at the post-increment position, because it may
not be dominated by the loop-variant value. This fixes a
use-before-def problem noticed on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96774 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 03:59:54 +00:00
Dan Gohman
2444080ca4 This cast<Instruction> is unnecessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 02:07:36 +00:00
Chris Lattner
74fd536158 enhance my hack for flags handling, this allows us to pass 
CodeGen/X86/pr2182.ll.  Down to 13 x86 failures out of ~1100


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96770 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 00:47:38 +00:00
Chris Lattner
ccfea35efb fix an incorrect VT: eflags is always i32. The bug was causing us to 
create an X86ISD::Cmp node with result type i64 on the 
CodeGen/X86/shift-i256.ll testcase and the new isel was assert on it
downstream.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96768 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-22 00:28:59 +00:00
Chris Lattner
565a6f9480 fix most of the failures in the x86 suite by handling multiple 
result nodes correctly.  Note that this includes a horrible hack
in DAGISelHeader which cannot be fixed reasonably without 
eliminating (parallel) from input patterns.  That, in turn,
can't be done until we support writing multiple result patterns
for the X86and_flag and related multiple-result nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 23:54:05 +00:00
Daniel Dunbar
12783d1c3a MC/X86: Add stub AsmBackend. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96763 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 21:54:14 +00:00
Daniel Dunbar
e7bd886cb8 MC: Sketch registry support for target specific assembler backends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96762 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 21:53:53 +00:00
Daniel Dunbar
24b5425072 Formatting tweaks (trailing whitespace, ordering, comments). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96761 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 21:53:37 +00:00
Chris Lattner
502035e541 fix an odd thinko in an assertion, all arm tests pass now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96758 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 20:57:28 +00:00
Chris Lattner
664012bb64 Always emit register class id references as i32 like 
DAGISelEmitter does.  This fixes 11 arm failures (8 
left).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 20:53:45 +00:00
Chris Lattner
728ea19ece add some no-unwinds, other minor cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96756 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 20:33:20 +00:00
Anton Korobeynikov
293d592bf9 It turned out that we failed to emit proper symbol stubs on non-x86/darwin for ages (we emitted a reference to a stub, but no stub was emitted). The code inside x86-32/macho target objfile lowering should actually be the generic one - move it there. 
This (I really, really hope) should fix EH issues on ppc/darwin
and arm/darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96755 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 20:28:15 +00:00
Chris Lattner
be94ffcf12 speculatively teach OPC_CheckValueType and OPC_EmitNode to handle 
MVT::iPTR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96753 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 20:15:25 +00:00
Chris Lattner
be92e6a0d2 teach OPC_CheckType to handle MVT::iPTR, down to 2 ppc failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96752 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 20:10:43 +00:00
Chris Lattner
1d4cb41fdd make this check a bit more generous, it may be outliving its 
utility.  Down to 6 ppc failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96751 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 20:02:15 +00:00
Chris Lattner
1e4b8bc93b Relax an assertion a bit. We allow replacing things like 
<4 x i32> with <4 x float> values if they end up the same
register class.  This gets us up to 231 passes on the ppc
tests (only 7 fails).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 19:35:07 +00:00
Chris Lattner
25e0f91d05 add a triple so that this doesn't fail due to linux/ppc register printing 
syntax.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 19:27:38 +00:00
Chris Lattner
99ce6e8aff Sort the patterns before adding them to the FA so that we get the 
least cost matches.  This gets us from 195 -> 208 passes on the ppc codegen tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96747 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 19:22:06 +00:00
Duncan Sands
bb1d451246 Remove a bunch of duplicated code, where there was one version taking a std::ostream 
and another taking a raw_ostream, but otherwise identical.  Use raw_ostream everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 19:15:19 +00:00
Chris Lattner
ad14fcc4c2 filecheckize and add nouwinds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96745 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 18:53:28 +00:00
Jakob Stoklund Olesen
b1ce7b1324 Enable assertion to detect cyclic valno references. 
This changes the stack overflow in PR6363 to an assertion failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96744 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 18:51:48 +00:00
Anton Korobeynikov
455080ff10 IT turns out that during jumpless setcc lowering eq and ne were swapped. 
This fixes PR6348

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96734 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 12:28:58 +00:00
Chris Lattner
863cc971e8 when a match fails and we have to rollback, make sure to keep 'N' in 
sync with the top of stack.  This fixes a bunch of failures on larger
testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96732 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 07:55:48 +00:00
Chris Lattner
0fb65cffa6 handle optional in flags that aren't present. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96731 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 07:19:06 +00:00
Chris Lattner
8fbad244bd emit table indexes before each row so that it is debuggable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 07:16:41 +00:00
Chris Lattner
a7399e4abf fix two bugs in OPC_EmitRegister, which makes ppc happier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 06:58:27 +00:00
Chris Lattner
bef2a515f6 fix a table size miscomputation, target opcodes are 2 bytes. 
With this, the matcher actually works reasonably well, but
crashes on larger examples in the scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 06:44:29 +00:00
Chris Lattner
984e18823e emit to the right streams, to avoid emitting the push 
body before the push.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96726 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 06:30:04 +00:00
Chris Lattner
0ab1c5f8f8 oops don't turn this on for everyone yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 06:03:56 +00:00
Chris Lattner
77f2e2724d implement the last known missing feature: updating uses of results 
of the matched pattern to use the newly created node results.  Onto
the "making it actually work" phase!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96724 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 06:03:07 +00:00
Chris Lattner
f1c6428164 fix and un-xfail X86/vec_ss_load_fold.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96720 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 04:53:34 +00:00
Johnny Chen
b92a23fcfc Undo r96654. The printing of ARM shift instructions in canonical forms can be 
handled in ARMInstPrinter.cpp.

And added PLD/PLDW/PLI (Preload Data/Instruction) for disassembly only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96719 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 04:42:01 +00:00
Charles Davis
89e124b6be Reduce size of 'StackAlignment' field from 5 to 3 bits. Seriously, who needs a 
2GB-aligned stack anyway? 256 bytes is plenty. Requested by Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96718 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 04:26:06 +00:00
Chris Lattner
7f6de7df46 temporarily disable this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96717 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 03:24:41 +00:00
Chris Lattner
8e946bea14 Lots of improvements to the new dagisel emitter. This gets it to 
the point where it is to the 95% feature complete mark, it just
needs result updating to be done (then testing, optimization 
etc).

More specificallly, this adds support for chain and flag handling
on the result nodes, support for sdnodexforms, support for variadic
nodes, memrefs, pinned physreg inputs, and probably lots of other
stuff.

In the old DAGISelEmitter, this deletes the dead code related to
OperatorMap, cleans up a variety of dead stuff handling "implicit
remapping" from things like globaladdr -> targetglobaladdr (which
is no longer used because globaladdr always needs to be legalized),
and some minor formatting fixes.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96716 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 03:22:59 +00:00
Chris Lattner
a170b5e818 rename SelectScalarSSELoad -> SelectScalarSSELoadXXX and rewrite 
it to follow the mode needed by the new isel.  Instead of returning
the input and output chains, it just returns the (currently only one,
which is a silly limitation) node that has input and output chains.

Since we want the old thing to still work, add a new 
SelectScalarSSELoad to emulate the old interface.  The XXX suffix
and the wrapper will eventually go away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96715 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 03:17:59 +00:00
Chris Lattner
beff6a3fd0 add a hook so that the new isel can run SDNodeXForms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96714 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 03:15:11 +00:00
Chris Lattner
d76fe6649c Eliminate some uses of immAllOnes, just use -1, it does 
the same thing and is more efficient for the matcher.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96713 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 03:13:10 +00:00
Chris Lattner
9f036412ac Eliminate some uses of immAllOnes, just use -1, it does 
the same thing and is more efficient for the matcher.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96712 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 03:12:16 +00:00
Tanya Lattner
0a42c5e5bf Test commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96711 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 03:01:05 +00:00
Tanya Lattner
50642b792c Test commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-21 02:59:05 +00:00
Dan Gohman
f09b71233b Rename getSDiv to getExactSDiv to reflect its behavior in cases where 
the division would have a remainder.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-19 19:35:48 +00:00
Dan Gohman
aae01f17a6 Check for overflow when scaling up an add or an addrec for 
scaled reuse.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-19 19:32:49 +00:00
Bob Wilson
1a2e8686f8 Revert 96634. It causes assertion failures for 126.gcc and 176.gcc in 
the armv6 nightly tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96691 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-19 18:59:53 +00:00
Dan Gohman
bc02853b89 Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96688 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-19 18:49:22 +00:00