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Author SHA1 Message Date
Nate Begeman
254ecb7886 SUBFIC produces two results, not one. 
llvm-svn: 23073
 2005-08-26 00:34:06 +00:00
Nate Begeman
0619930d74 Implement SHL_PARTS and SRL_PARTS 
llvm-svn: 23072
 2005-08-26 00:28:00 +00:00
Chris Lattner
f25ec1b7b9 Add support for targets that want to custom expand select_cc in some cases. 
llvm-svn: 23071
 2005-08-26 00:23:59 +00:00
Chris Lattner
7e68d39877 Allow LowerOperation to return a null SDOperand in case it wants to lower 
some things given to it, but not all.

llvm-svn: 23070
 2005-08-26 00:14:16 +00:00
Chris Lattner
2c3fbbab05 Fix a nasty bug from a previous patch of mine 
llvm-svn: 23069
 2005-08-26 00:13:12 +00:00
Chris Lattner
578b7f212f Emit the lo/hi parts in the right order :) 
llvm-svn: 23068
 2005-08-25 23:36:49 +00:00
Jim Laskey
236ef88c39 Added cl::bits option type (bit vectors). See "Collecting options as a set 
of flags" in the Command Line doc.

llvm-svn: 23067
 2005-08-25 23:31:45 +00:00
Chris Lattner
4433d74ea5 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.

llvm-svn: 23066
 2005-08-25 23:21:06 +00:00
Chris Lattner
e4cf3ab5d4 simplify the add/sub_parts code 
llvm-svn: 23065
 2005-08-25 23:19:58 +00:00
Jim Laskey
05ed995816 Tweak of multiple occurance paragraph. 
llvm-svn: 23064
 2005-08-25 23:01:25 +00:00
Jim Laskey
524753c9f8 Documentation updated to include upcoming support for bit vector support 
(flags.)

llvm-svn: 23063
 2005-08-25 22:52:43 +00:00
Chris Lattner
e33ad38b02 Finish implementing SDIV/UDIV by copying over the majik constant code from 
ISelPattern

llvm-svn: 23062
 2005-08-25 22:04:30 +00:00
Chris Lattner
dc8ebb9302 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

llvm-svn: 23061
 2005-08-25 22:03:50 +00:00
Chris Lattner
32600ecfeb Implement setcc correctly for G5 and non-G5 systems 
llvm-svn: 23060
 2005-08-25 21:39:42 +00:00
Chris Lattner
b9c2c40046 implement setcc on the G5. We're still missing the non-g5 specific bits, but 
they will come later.

llvm-svn: 23059
 2005-08-25 20:08:18 +00:00
Nate Begeman
54f44ad750 New fold for SELECT_CC 
llvm-svn: 23058
 2005-08-25 20:04:38 +00:00
Nate Begeman
0f60221f2e Remove option to make SetCC illegal on PowerPC after long discussion with 
Chris.  This will be accomplished through correctly modeling CR's and
subregs.

llvm-svn: 23056
 2005-08-25 20:01:10 +00:00
Chris Lattner
18572f3c67 Don't auto-cse nodes that return flags 
llvm-svn: 23055
 2005-08-25 19:12:10 +00:00
Chris Lattner
cb3910fa74 add printer support for flag operands 
llvm-svn: 23054
 2005-08-25 17:59:23 +00:00
Chris Lattner
7c7a447220 simplify the code a bit using isOperationLegal 
llvm-svn: 23053
 2005-08-25 17:54:58 +00:00
Chris Lattner
a79c58d1e4 Add support for sdiv by 2^k and -2^k. Producing code like: 
_test:
        srawi r2, r3, 2
        addze r3, r2
        blr

llvm-svn: 23052
 2005-08-25 17:50:06 +00:00
Chris Lattner
8ee8270e31 fit in 80 cols 
llvm-svn: 23051
 2005-08-25 17:49:31 +00:00
Chris Lattner
7598a14e0c Add support for flag operands 
llvm-svn: 23050
 2005-08-25 17:48:54 +00:00
Chris Lattner
70cc927742 add a method 
llvm-svn: 23049
 2005-08-25 17:24:09 +00:00
Chris Lattner
713643bc71 add an enum value 
llvm-svn: 23048
 2005-08-25 17:07:09 +00:00
Jim Laskey
1d099e4e27 Remove Support/Search.h entry 
llvm-svn: 23047
 2005-08-25 16:44:13 +00:00
Jim Laskey
4878a218a4 Recommended to use std::algorithms instead. 
llvm-svn: 23046
 2005-08-25 16:21:56 +00:00
Jim Laskey
ee04e3e897 Added Support/Search.h to project. 
llvm-svn: 23045
 2005-08-25 13:42:04 +00:00
Jim Laskey
86cc9d4550 Added support for generic linear/binary search. 
llvm-svn: 23044
 2005-08-25 13:32:25 +00:00
Chris Lattner
165fcbcd64 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.

llvm-svn: 23043
 2005-08-25 05:45:31 +00:00
Chris Lattner
77350a373e 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

llvm-svn: 23042
 2005-08-25 05:04:11 +00:00
Chris Lattner
0168c8df11 ADd support for TargetConstantPool nodes 
llvm-svn: 23041
 2005-08-25 05:03:06 +00:00
Chris Lattner
70cb011425 Add support for TargetConstantPool node 
llvm-svn: 23040
 2005-08-25 05:02:41 +00:00
Reid Spencer
3cbdac1edb 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.

llvm-svn: 23039
 2005-08-25 04:59:49 +00:00
Chris Lattner
2296582d06 Add support for FP constants, fixing UnitTests/2004-02-02-NegativeZero 
llvm-svn: 23038
 2005-08-25 04:47:18 +00:00
Reid Spencer
0e6d4616fd Don't attempt to update LLVM configured header files from a build in a 
project. Thanks to Chris for pointing out this deficiency.

llvm-svn: 23037
 2005-08-25 04:44:18 +00:00
Chris Lattner
f36622ea2e Fully implement frame index, so that we can pass the address of alloca's 
around to functions and stuff

llvm-svn: 23036
 2005-08-25 00:45:43 +00:00
Chris Lattner
813f6ddaf8 add a new TargetFrameIndex node 
llvm-svn: 23035
 2005-08-25 00:43:01 +00:00
Chris Lattner
c9cc2b0acd implement unconditional branches, fixing UnitTests/2003-05-02-DependentPHI.c 
llvm-svn: 23034
 2005-08-25 00:29:58 +00:00
Chris Lattner
36715208c4 LFS/STFS load and store FP values, not integer ones. This change allows us 
to codegen this: float foo() { return 1.245; }

into this:

_foo:
        lis r2, ha16(.CPI_foo_0)
        lfs f1, lo16(.CPI_foo_0)(r2)
        blr

instead of this:

_foo:
        lis r2, ha16(.CPI_foo_0)
        lfs r2, lo16(.CPI_foo_0)(r2)   <-- ouch
        or f1, r2, r2                  <-- ouch
        blr

with the dag isel.

llvm-svn: 23033
 2005-08-25 00:26:22 +00:00
Chris Lattner
286b85144c Fix a broken assertion 
llvm-svn: 23032
 2005-08-25 00:19:12 +00:00
Chris Lattner
fc59d17656 Fix a warning 
llvm-svn: 23031
 2005-08-25 00:05:15 +00:00
Chris Lattner
4349a69f74 fix a warning in optimized build 
llvm-svn: 23030
 2005-08-25 00:03:21 +00:00
Chris Lattner
898278d586 Fix some warnings 
llvm-svn: 23029
 2005-08-25 00:00:26 +00:00
Chris Lattner
8f595df1a6 Split IMPLICIT_DEF into IMPLICIT_DEF_GPR and IMPLICIT_DEF_FP, so that the 
instructions take a consistent reg class.  Implement ISD::UNDEF in the dag->dag
selector to generate this, fixing UnitTests/2003-07-06-IntOverflow.

llvm-svn: 23028
 2005-08-24 23:08:16 +00:00
Chris Lattner
22c6c99e5d add a method 
llvm-svn: 23027
 2005-08-24 23:00:29 +00:00
Chris Lattner
5efe9406a6 implement support for calls 
llvm-svn: 23026
 2005-08-24 22:45:17 +00:00
Chris Lattner
786ec10dfb Add ReplaceAllUsesWith that can take a vector of replacement values. 
Add some foldings to hopefully help the illegal setcc issue, and move some code around.

llvm-svn: 23025
 2005-08-24 22:44:39 +00:00
Chris Lattner
79191b194f add two new methods 
llvm-svn: 23024
 2005-08-24 22:43:53 +00:00
Chris Lattner
8824bd228b Remove some dead cases. 
Emit the indcall sequence as:

mtctr inreg
mr R12, inreg
btctr

If inreg and R12 aren't coallesced, this reduces the odds of having the mtctr
and btctr in the same dispatch group.  :)

llvm-svn: 23023
 2005-08-24 22:21:47 +00:00