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37 Commits

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
578b7f212f Emit the lo/hi parts in the right order :) 
llvm-svn: 23068
 2005-08-25 23:36:49 +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
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
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
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
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
2296582d06 Add support for FP constants, fixing UnitTests/2004-02-02-NegativeZero 
llvm-svn: 23038
 2005-08-25 04:47:18 +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
c9cc2b0acd implement unconditional branches, fixing UnitTests/2003-05-02-DependentPHI.c 
llvm-svn: 23034
 2005-08-25 00:29:58 +00:00
Chris Lattner
286b85144c Fix a broken assertion 
llvm-svn: 23032
 2005-08-25 00:19:12 +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
5efe9406a6 implement support for calls 
llvm-svn: 23026
 2005-08-24 22:45:17 +00:00
Nate Begeman
8e1c08e083 Remove unused statistic 
Prefer 'neg X' to 'subfic 0, X' since neg does not set XER[CA]

llvm-svn: 23001
 2005-08-24 05:03:20 +00:00
Chris Lattner
f034da3bd4 Add callseq_begin/end support 
Call stil not supported yet

llvm-svn: 22998
 2005-08-24 00:47:15 +00:00
Chris Lattner
4c9d1715ff Implement stores. 
llvm-svn: 22963
 2005-08-22 01:27:59 +00:00
Chris Lattner
86aceaf749 Fix compilation of: 
float %test2(float* %P) {
        %Q = load float* %P
        %R = add float %Q, %Q
        ret float %R
}

By returning the right result.

llvm-svn: 22961
 2005-08-22 00:59:14 +00:00
Chris Lattner
a3f9415a81 Implement most of load support. There is still a bug though. 
llvm-svn: 22959
 2005-08-21 22:31:09 +00:00
Chris Lattner
0f148968ba Implement selection for branches. 
llvm-svn: 22951
 2005-08-21 18:50:37 +00:00
Chris Lattner
9fbbc41021 add support for global address, including PIC support. 
This REALLY should be lowered by the legalizer!

llvm-svn: 22941
 2005-08-19 22:38:53 +00:00
Chris Lattner
a8f147c1b4 Fix a typeo, no wonder all tokenfactor edges were the same! 
llvm-svn: 22935
 2005-08-19 21:33:02 +00:00
Nate Begeman
1182e06dcf ISD::OR, and it's accompanying SelectBitfieldInsert 
llvm-svn: 22889
 2005-08-19 00:38:14 +00:00
Nate Begeman
c1aeaed2b9 Add shifts. 
llvm-svn: 22884
 2005-08-18 23:38:00 +00:00
Chris Lattner
2147daa960 Move this to the emitter 
llvm-svn: 22877
 2005-08-18 20:08:53 +00:00
Chris Lattner
a094a1279a After selecting the instructions for a basic block, emit the instructions 
llvm-svn: 22869
 2005-08-18 18:46:06 +00:00
Chris Lattner
80a5ffb6c5 remove some unused stuff 
llvm-svn: 22866
 2005-08-18 18:34:00 +00:00
Nate Begeman
7726312fac Improve ISD::Constant codegen. 
Now for int foo() { return -1; } we generate:
_foo:
        li r3, -1
        blr

instead of
_foo:
        lis r2, -1
        ori r3, r2, 65535
        blr

llvm-svn: 22864
 2005-08-18 18:01:39 +00:00
Nate Begeman
67f3483a97 Add support for ISD::AND, and its various optimized forms. 
llvm-svn: 22857
 2005-08-18 07:30:46 +00:00
Nate Begeman
3681359c93 Maintain consistency in negating things 
llvm-svn: 22855
 2005-08-18 05:44:50 +00:00
Nate Begeman
b6e36decb6 Implement XOR, remove a broken sign_extend_inreg case 
llvm-svn: 22854
 2005-08-18 05:00:13 +00:00
Nate Begeman
feac5964d7 Add a bunch more simple nodes. 
llvm-svn: 22851
 2005-08-18 03:04:18 +00:00
Nate Begeman
4a875e784e Add a couple more nodes that are easy to handle 
llvm-svn: 22850
 2005-08-18 00:53:47 +00:00
Nate Begeman
276155cb07 Be fruitful and multiply! 
llvm-svn: 22849
 2005-08-18 00:21:41 +00:00
Nate Begeman
e7c038e591 Teach the DAG->DAG ISel about FNEG, and how it can be used to invert 
several of the PowerPC opcodes that come in both negated and non-negated
forms.

llvm-svn: 22845
 2005-08-17 23:46:35 +00:00
Chris Lattner
6ee7175048 initial hack at a dag->dag instruction selector. This is obviously woefully 
incomplete, but it is a start.  It handles basic argument/retval stuff, immediates,
add and sub.

llvm-svn: 22836
 2005-08-17 19:33:03 +00:00