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Author SHA1 Message Date
Chris Lattner
13794f5d01 implement the fold for: 
bool %test(int %X, int %Y) {
        %C = setne int %X, 0
        ret bool %C
}

to:

_test:
        addic r2, r3, -1
        subfe r3, r2, r3
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23089 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 18:46:49 +00:00
Chris Lattner
52987f4f65 Changes to adjust to new ReplaceAllUsesWith syntax. Change FP_EXTEND to 
just return its input, instead of emitting an explicit copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23088 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 18:37:23 +00:00
Chris Lattner
8b52f21f10 Revampt ReplaceAllUsesWith to be more efficient and easier to use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23087 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 18:36:28 +00:00
Chris Lattner
26005b1b67 Add a new version of ReplaceAllUsesWith, make the comments more useful. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23086 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 18:35:58 +00:00
Nate Begeman
60675f7562 Remove some code made dead by the fsel patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23085 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 17:45:06 +00:00
Chris Lattner
28b9be300c now that fsel is formed during legalization, this code is dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23084 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 17:40:39 +00:00
Chris Lattner
0b1e4e508b implement the other half of the select_cc -> fsel lowering, which handles 
when the RHS of the comparison is 0.0.  Turn this on by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23083 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 17:36:52 +00:00
Chris Lattner
143b675393 Fix a bug in my previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23082 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 17:18:44 +00:00
Chris Lattner
5839bf2b3b Change ConstantPoolSDNode to actually hold the Constant itself instead of 
putting it into the constant pool.  This allows the isel machinery to
create constants that it will end up deciding are not needed, without them
ending up in the resultant function constant pool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23081 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 17:15:30 +00:00
Chris Lattner
95e0682a42 Fix some warnings in an optimized build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23080 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 16:38:51 +00:00
Chris Lattner
2bb06cdf27 Fix a huge annoyance: SelectNodeTo took types before the opcode unlike 
every other SD API.  Fix it to take the opcode before the types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23079 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 16:36:26 +00:00
Jim Laskey
22b7dfa645 Changed unsigned long to unsigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23078 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 09:25:54 +00:00
Jim Laskey
a2860651e8 Change unsigned lng to unsigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23077 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 09:24:46 +00:00
Nate Begeman
6718f11feb Fix JIT encoding of conditional branches 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23076 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 04:11:42 +00:00
Chris Lattner
e4bc9ea0a5 add initial support for converting select_cc -> fsel in the legalizer 
instead of in the backend.  This currently handles fsel cases with registers,
but doesn't have the 0.0 and -0.0 optimization enabled yet.

Once this is finished, special hack for fp immediates can go away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23075 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 00:52:45 +00:00
Chris Lattner
d7050a9c50 the 5th operand is the 4th number 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23074 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 00:43:46 +00:00
Nate Begeman
bb22df31d9 SUBFIC produces two results, not one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23073 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 00:34:06 +00:00
Nate Begeman
6660cd65cf Implement SHL_PARTS and SRL_PARTS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23072 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 00:28:00 +00:00
Chris Lattner
23004e5f21 Add support for targets that want to custom expand select_cc in some cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23071 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 00:23:59 +00:00
Chris Lattner
07dffd6af6 Allow LowerOperation to return a null SDOperand in case it wants to lower 
some things given to it, but not all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23070 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 00:14:16 +00:00
Chris Lattner
f07d023dd9 Fix a nasty bug from a previous patch of mine 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23069 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-26 00:13:12 +00:00
Chris Lattner
b20c318df0 Emit the lo/hi parts in the right order :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23068 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 23:36:49 +00:00
Jim Laskey
eb0c36d173 Added cl::bits option type (bit vectors). See "Collecting options as a set 
of flags" in the Command Line doc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23067 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 23:31:45 +00:00
Chris Lattner
a9317ed361 implement support for 64-bit add/sub, fix a broken assertion for 64-bit 
return.  Allow the udiv breaker-upper to work with any non-zero constant
operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23066 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 23:21:06 +00:00
Chris Lattner
801d5f56bb simplify the add/sub_parts code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23065 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 23:19:58 +00:00
Jim Laskey
2602922735 Tweak of multiple occurance paragraph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23064 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 23:01:25 +00:00
Jim Laskey
1d8f626f66 Documentation updated to include upcoming support for bit vector support 
(flags.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23063 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 22:52:43 +00:00
Chris Lattner
047b952e29 Finish implementing SDIV/UDIV by copying over the majik constant code from 
ISelPattern


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23062 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 22:04:30 +00:00
Chris Lattner
c70b4afce2 Simplify some code. It's not clear why the UDIV expanded sequence 
doesn't work for large uint constants, but we'll keep the current behavior


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23061 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 22:03:50 +00:00
Chris Lattner
957fcfbd89 Implement setcc correctly for G5 and non-G5 systems 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23060 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 21:39:42 +00:00
Chris Lattner
64906a06b3 implement setcc on the G5. We're still missing the non-g5 specific bits, but 
they will come later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23059 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 20:08:18 +00:00
Nate Begeman
1999b4b974 New fold for SELECT_CC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23058 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 20:04:38 +00:00
Nate Begeman
c8e27db5c5 Remove option to make SetCC illegal on PowerPC after long discussion with 
Chris.  This will be accomplished through correctly modeling CR's and
subregs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23056 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 20:01:10 +00:00
Chris Lattner
43247a157b Don't auto-cse nodes that return flags 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23055 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 19:12:10 +00:00
Chris Lattner
8064e8fbf4 add printer support for flag operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23054 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:59:23 +00:00
Chris Lattner
9d338cf3a3 simplify the code a bit using isOperationLegal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23053 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:54:58 +00:00
Chris Lattner
8784a23075 Add support for sdiv by 2^k and -2^k. Producing code like: 
_test:
        srawi r2, r3, 2
        addze r3, r2
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23052 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:50:06 +00:00
Chris Lattner
ee84f11577 fit in 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23051 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:49:31 +00:00
Chris Lattner
376d54f9b6 Add support for flag operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23050 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:48:54 +00:00
Chris Lattner
3cd82619a8 add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23049 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:24:09 +00:00
Chris Lattner
a64d4cddf5 add an enum value 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23048 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 17:07:09 +00:00
Jim Laskey
45a8036df0 Remove Support/Search.h entry 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23047 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 16:44:13 +00:00
Jim Laskey
6600fa2d17 Recommended to use std::algorithms instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23046 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 16:21:56 +00:00
Jim Laskey
2d48b13eef Added Support/Search.h to project. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23045 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 13:42:04 +00:00
Jim Laskey
ab6c0a923f Added support for generic linear/binary search. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23044 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 13:32:25 +00:00
Chris Lattner
4e27d3a10c Fix a problem Duraid noticed, where we weren't removing values from the kills 
list when doing two-address and phi node lowering during register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23043 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 05:45:31 +00:00
Chris Lattner
34e17052a7 Implement support for taking the address of constant pool indices, which 
is used by the int -> FP code among other things.  This gets
2005-05-12-Int64ToFP past that failure, to dying on lack of support for add_parts


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23042 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 05:04:11 +00:00
Chris Lattner
4025a9c2cc ADd support for TargetConstantPool nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23041 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 05:03:06 +00:00
Chris Lattner
aaaaf79d4a Add support for TargetConstantPool node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23040 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 05:02:41 +00:00
Reid Spencer
ca739c685b For PR614: 
Move the implementation of the fix from Makefile.rules to Makefile. This
ensures that it is only checked on a top-level rebuild, and not in every
single subdirectory. This removes some annoying messages from the build and
numerous executions of config.status if the .in file changes but not
substantively enough to cause the .h file to be modified by config.status.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23039 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-08-25 04:59:49 +00:00