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4231 Commits

Author SHA1 Message Date
Bill Wendling
da6efc5268 Changed XXX to FIXME, and added comment to the README file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43359 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 19:49:32 +00:00
Bill Wendling
0713a22423 Added comment explaining why we are doing this check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43353 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 18:23:45 +00:00
Duncan Sands
2e606cfc7a Small formatting changes. Add a sanity check. 
Use NVT rather than looking it up, since we have
it to hand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43341 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 12:35:51 +00:00
Duncan Sands
cac99db7da Promote SETCC operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43340 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 12:32:31 +00:00
Duncan Sands
a3d10d808e Correctly extract the ValueType from a VTSDNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43339 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 12:30:51 +00:00
Dale Johannesen
8eadd5a6db Another expansion for i64 multiply, suitable for PPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43314 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 22:26:08 +00:00
Bill Wendling
30eeb3c6c0 Fix comment and use the "Size" variable that's already provided. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43271 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 23:36:57 +00:00
Bill Wendling
8b1c68cee4 If there's an unaligned memcpy to/from the stack, don't lower it. Just call the 
memcpy library function instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43270 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 23:32:40 +00:00
Bill Wendling
803396fce2 This broke lots. Reverting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43264 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 22:04:26 +00:00
Bill Wendling
de09040946 Lowering a memcpy to the stack is killing PPC. The ARM and X86 backends already 
have their own custom memcpy lowering code. This code needs to be factored out
into a target-independent lowering method with hooks to the backend. In the
meantime, just call memcpy if we're trying to copy onto a stack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43262 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 21:30:25 +00:00
Evan Cheng
7bb175b4d1 It's possible to commute instrctions with more than 3 operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43256 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 20:14:40 +00:00
Evan Cheng
e11fb34381 isSubRegOf() is a dup of isSubRegister. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43249 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 06:51:50 +00:00
Evan Cheng
76500d52be Add missing paratheses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43227 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 19:42:28 +00:00
Duncan Sands
fec3ad3e5f Support for expanding extending loads of integers with 
funky bit-widths.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43225 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 19:00:05 +00:00
Duncan Sands
245741d2a1 Fix up the logic for result expanding the various extension 
operations so they work right for integers with funky
bit-widths.  For example, consider extending i48 to i64
on a 32 bit machine.  The i64 result is expanded to 2 x i32.
We know that the i48 operand will be promoted to i64, then
also expanded to 2 x i32.  If we had the expanded promoted
operand to hand, then expanding the result would be trivial.
Unfortunately at this stage we can only get hold of the
promoted operand.  So instead we kind of hand-expand, doing
explicit shifting and truncating to get the top and bottom
halves of the i64 operand into 2 x i32, which are then used
to expand the result.  This is harmless, because when the
promoted operand is finally expanded all this bit fiddling
turns into trivial operations which are eliminated either
by the expansion code itself or the DAG combiner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43223 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 18:26:21 +00:00
Evan Cheng
cbfb9b27ef - Only perform the unfolding optimization when the folding in question is modref. 
- Remove a bogus assertion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43211 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 03:01:44 +00:00
Chris Lattner
d0e908e830 Add promote operand support for [su]int_to_fp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-20 22:57:56 +00:00
Chris Lattner
be5a0a4668 Add result promotion of FP_TO_*INT, fixing CodeGen/X86/trunc-to-bool.ll 
with the new legalizer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43199 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-20 04:32:38 +00:00
Chris Lattner
aaeb0c8666 simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43198 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-20 04:09:48 +00:00
Chris Lattner
d20154c762 Implement promote and expand for operands of memcpy and friends. 
This fixes CodeGen/X86/mem*.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43197 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-20 04:07:07 +00:00
Evan Cheng
b9d5e7cdc9 Added missing curly braces which renders the if clause useless in debug build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43196 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-20 04:01:47 +00:00
Dale Johannesen
e526962fc5 Fix a few places vector operations were not getting 
the operand's type from the right place.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43195 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-20 00:07:52 +00:00
Evan Cheng
66f7163545 Local spiller optimization: 
Turn a store folding instruction into a load folding instruction. e.g.
     xorl  %edi, %eax
     movl  %eax, -32(%ebp)
     movl  -36(%ebp), %eax
     orl   %eax, -32(%ebp)
=>
     xorl  %edi, %eax
     orl   -36(%ebp), %eax
     mov   %eax, -32(%ebp)
This enables the unfolding optimization for a subsequent instruction which will
also eliminate the newly introduced store instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43192 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 21:23:22 +00:00
Bill Wendling
80629c85f1 Don't branch fold inline asm statements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43191 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 21:09:55 +00:00
Duncan Sands
7f5f6851c3 Add support for a few more nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43190 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 20:29:48 +00:00
Dale Johannesen
b6210fc92b Redo "last ppc long double fix" as Chris wants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43189 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 20:29:00 +00:00
Chris Lattner
f185e67844 Fix a really nasty vector miscompilation bill recently introduced. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43181 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 16:47:35 +00:00
Chris Lattner
1c4d492b94 rename ExpandOperation to ExpandOperationResult, as suggested 
by Duncan


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43177 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 15:28:47 +00:00
Duncan Sands
c8ca2365e5 Support for expanding ADDE and SUBE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43175 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 13:06:17 +00:00
Duncan Sands
5d868b1ffe If the value types are equal then this routine 
asserts in later checks rather than producing
the ordinary load it is supposed to.  Avoid all
such hassles by directly returning an ordinary
load in this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43174 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 13:05:40 +00:00
Rafael Espindola
5c0d6ed325 Add support for byval function whose argument is not 32 bit aligned. 
To do this it is necessary to add a "always inline" argument to the
memcpy node. For completeness I have also added this node to memmove
and memset.  I have also added getMem* functions, because the extra
argument makes it cumbersome to use getNode and because I get confused
by it :-)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43172 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 10:41:11 +00:00
Chris Lattner
1f39dc42cd Implement a few new operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43171 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 04:46:45 +00:00
Chris Lattner
50f4395d86 Implement expansion of SINT_TO_FP and UINT_TO_FP operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43170 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 04:32:47 +00:00
Chris Lattner
c99df1b848 implement support for custom expansion of any node type, in one place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43169 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 04:14:36 +00:00
Chris Lattner
597ab48ca0 Make use of TLI.ExpandOperation, remove softfloat stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43167 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 03:58:25 +00:00
Chris Lattner
c224a53d7a add expand support for bit_convert result, even allowing custom expansion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43166 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 03:33:14 +00:00
Chris Lattner
f58dac3169 add a new target hook. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43165 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 03:31:45 +00:00
Bill Wendling
1851898e75 Negative indices aren't allowed here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43161 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 01:10:49 +00:00
Dale Johannesen
fabd32deb0 More ppcf128 issues (maybe the last)? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43160 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 00:59:18 +00:00
Bill Wendling
90bfc2d105 Pointer arithmetic should be done with the index the same size as the pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43120 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 08:32:37 +00:00
Duncan Sands
70ba3d4803 Support for ADDC/SUBC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43119 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 08:22:16 +00:00
Evan Cheng
4ae31a5d32 Really fix PR1734. Carefully track which register uses are sub-register uses by 
traversing inverse register coalescing map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43118 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 07:49:59 +00:00
Dan Gohman
c623096fe2 Add support for ISD::SELECT in SplitVectorOp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43072 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 14:48:28 +00:00
Duncan Sands
f411b83c8c Return Expand from getOperationAction for all extended 
types.  This is needed for SIGN_EXTEND_INREG at least.
It is not clear if this is correct for other operations.
On the other hand, for the various load/store actions
it seems to correct to return the type action, as is
currently done.
Also, it seems that SelectionDAG::getValueType can be
called for extended value types; introduce a map for
holding these, since we don't really want to extend
the vector to be 2^32 pointers long!
Generalize DAGTypeLegalizer::PromoteResult_TRUNCATE
and DAGTypeLegalizer::PromoteResult_INT_EXTEND to handle
the various funky possibilities that apints introduce,
for example that you can promote to a type that needs
to be expanded.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43071 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 13:49:58 +00:00
Evan Cheng
a5bfc97da7 Apply Chris' suggestions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43069 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 06:53:44 +00:00
Evan Cheng
95f0ab624d One more extract_subreg coalescing bug fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43065 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 05:29:37 +00:00
Evan Cheng
3c1f4a4d47 Fix MergeValueInAsValue(). It allows overlapping live ranges but should replace 
their value numbers with the specified value number.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43062 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 02:13:29 +00:00
Evan Cheng
3f4b80ec0c Clean up code that calculate MBB live-in's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43061 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 02:12:22 +00:00
Evan Cheng
4ca980e7f9 Clean up code that calculate MBB live-in's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43060 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 02:10:22 +00:00
Dale Johannesen
db44bf85d8 Disable attempts to constant fold PPC f128. 
Remove the assumption that this will happen from
various places.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43053 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-16 23:38:29 +00:00