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Author SHA1 Message Date
Jim Laskey
da117aa6d3 Simple edits; remove unimplimented cases and clarify long haul SLU cases. 
llvm-svn: 23788
 2005-10-18 16:59:23 +00:00
Chris Lattner
5edea4e9cd Fix the JIT encoding of LWA, LD, STD, and STDU. 
llvm-svn: 23787
 2005-10-18 16:51:22 +00:00
Jim Laskey
610af28ca0 Checking in first round of scheduling tablegen files. Not tied in as yet. 
llvm-svn: 23786
 2005-10-18 16:23:40 +00:00
Chris Lattner
394413e59c add a case 
llvm-svn: 23785
 2005-10-18 06:30:51 +00:00
Chris Lattner
fb0fa6792e Fix PR637 
llvm-svn: 23784
 2005-10-18 06:29:43 +00:00
Chris Lattner
d21885e6c9 Add an option to this pass. If it is set, we are allowed to internalize 
all but main.  If it's not set, we can still internalize, but only if an
explicit symbol list is provided.

llvm-svn: 23783
 2005-10-18 06:29:22 +00:00
Chris Lattner
211f996c92 add an option to the internalize pass 
llvm-svn: 23782
 2005-10-18 06:28:16 +00:00
Chris Lattner
824a8efa08 Fold (select C, load A, load B) -> load (select C, A, B). This happens quite 
a lot throughout many programs.  In particular, specfp triggers it a bunch for
constant FP nodes when you have code like  cond ? 1.0 : -1.0.

If the PPC ISel exposed the loads implicit in pic references to external globals,
we would be able to eliminate a load in cases like this as well:

%X = external global int
%Y = external global int
int* %test4(bool %C) {
        %G = select bool %C, int* %X, int* %Y
        ret int* %G
}

Note that this breaks things that use SrcValue's (see the fixme), but since nothing
uses them yet, this is ok.

Also, simplify some code to use hasOneUse() on an SDOperand instead of hasNUsesOfValue directly.

llvm-svn: 23781
 2005-10-18 06:04:22 +00:00
Chris Lattner
fbf3838a61 Duraid pointed out that it is impolite to emit PPC:: into the IA64 backend 
llvm-svn: 23780
 2005-10-18 04:41:01 +00:00
Nate Begeman
5dbcab491a Do the right thing and enable 64 bit regs under the control of a subtarget 
option.  Currently the only way to enable this is to specify the
64bitregs mattr flag.  It is never enabled by default on any config yet.

llvm-svn: 23779
 2005-10-18 00:56:42 +00:00
Nate Begeman
b0e319a7c7 First bits of 64 bit PowerPC stuff, currently disabled. A lot of this is 
purely mechanical.

llvm-svn: 23778
 2005-10-18 00:28:58 +00:00
Nate Begeman
b9627ab955 Implement some feedback from Chris re: constant canonicalization 
llvm-svn: 23777
 2005-10-18 00:28:13 +00:00
Nate Begeman
f495ec2497 Legalize BUILD_PAIR appropriately for upcoming 64 bit PowerPC work. 
llvm-svn: 23776
 2005-10-18 00:27:41 +00:00
John Criswell
1ece5aa9da Use %s instead of hard coding the input filename. 
This allows the test to work when srcdir != objdir.

llvm-svn: 23775
 2005-10-17 21:54:18 +00:00
Nate Begeman
b2f472ec56 fold fmul X, +2.0 -> fadd X, X; 
llvm-svn: 23774
 2005-10-17 20:40:11 +00:00
Chris Lattner
515ce6687d Make this work for FP constantexprs 
llvm-svn: 23773
 2005-10-17 20:18:38 +00:00
Chris Lattner
09b3b3d658 Oops, X+0.0 isn't foldable, but X+-0.0 is. 
llvm-svn: 23772
 2005-10-17 17:56:38 +00:00
Chris Lattner
00f8306943 relax this a bit, as we only support the default rounding mode 
llvm-svn: 23771
 2005-10-17 17:49:32 +00:00
Chris Lattner
84f1fb55c2 Apparently, people object to floating pointers. Picky picky. 
llvm-svn: 23770
 2005-10-17 15:19:24 +00:00
Jim Laskey
47bcddb491 As requested, a blurb on sub-targets. 
llvm-svn: 23769
 2005-10-17 12:19:10 +00:00
Chris Lattner
31d368acdc fix some grammar-o's I noticed 
llvm-svn: 23768
 2005-10-17 04:18:41 +00:00
Chris Lattner
cd78af4417 Feedback from Nate. 
llvm-svn: 23767
 2005-10-17 03:09:31 +00:00
Chris Lattner
f5b250fb9c Document -view-isel-dags and -view-sched-dags 
llvm-svn: 23766
 2005-10-17 01:40:33 +00:00
Chris Lattner
96f76f5257 Add notes about MF.viewCFG() and friends. 
llvm-svn: 23765
 2005-10-17 01:36:23 +00:00
Chris Lattner
27d166c9bf add a trivial fold 
llvm-svn: 23764
 2005-10-17 01:07:11 +00:00
Chris Lattner
7a61ff2741 Add a bunch of info about the isel autogenerator. Review appreciated! 
llvm-svn: 23763
 2005-10-16 20:02:19 +00:00
Chris Lattner
35e81a9487 Fill this out some more. Add description of MBB/MF. Fix some broken links, 
turn some broken <a name> into <a href>'s.

llvm-svn: 23762
 2005-10-16 18:31:08 +00:00
Chris Lattner
d1242aeb9a Add a stub for the TargetSubtarget class. Jim, please fill a blurb in here 
when you get a chance.

llvm-svn: 23761
 2005-10-16 17:06:07 +00:00
Chris Lattner
970b6b9d13 Update this significantly, mention subtarget and isel generation support. 
llvm-svn: 23760
 2005-10-16 17:03:22 +00:00
Nate Begeman
723637974b More PPC32 -> PPC changes, as well as merging some classes that were 
redundant after the change.

llvm-svn: 23759
 2005-10-16 05:39:50 +00:00
Chris Lattner
a4dc9eda40 Make the generated code significantly more memory efficient, by using 
SelectNodeTo instead of getTargetNode when possible.

llvm-svn: 23758
 2005-10-16 01:41:58 +00:00
Chris Lattner
1f2ca991c4 update this a little bit to talk about the dag combiner and remove inaccuracies. 
This still doesn't talk about autogen much

llvm-svn: 23757
 2005-10-16 00:36:38 +00:00
Chris Lattner
d22af0377d Fix this logic. 
llvm-svn: 23756
 2005-10-15 22:35:40 +00:00
Chris Lattner
f2d781b780 Add a case we were missing that was causing us to fail CodeGen/PowerPC/rlwinm.ll:test3 
llvm-svn: 23755
 2005-10-15 22:18:08 +00:00
Nate Begeman
0eeb198d81 Remove some dead code now that the dag combiner exists. 
llvm-svn: 23754
 2005-10-15 22:08:02 +00:00
Chris Lattner
4893eb3b04 Remove some dead code: the ORI/ORIS cases are autogen'd. This makes 
SelectIntImmediateExpr dead.

llvm-svn: 23753
 2005-10-15 22:06:18 +00:00
Chris Lattner
4e08151e9b prune #includes 
llvm-svn: 23752
 2005-10-15 21:58:54 +00:00
Chris Lattner
6f97b0bb81 These instructions are now autogenerated 
llvm-svn: 23751
 2005-10-15 21:44:56 +00:00
Chris Lattner
114941504c Add a pattern for FSQRTS 
llvm-svn: 23750
 2005-10-15 21:44:15 +00:00
Chris Lattner
c9479e899a remove dead code 
llvm-svn: 23749
 2005-10-15 21:40:12 +00:00
Chris Lattner
5a4ed7e8ab Implement the last major missing piece in the DAG isel generator: when emitting 
a pattern match, make sure to emit the (minimal number of) type checks that
verify the pattern matches this specific instruction.  This allows FMA32
patterns to not match double expressions for example.

llvm-svn: 23748
 2005-10-15 21:34:21 +00:00
Chris Lattner
346dc6fed1 Use getExtLoad here instead of getNode, as extloads produce two values. This 
fixes a legalize failure on SPASS for itanium.

llvm-svn: 23747
 2005-10-15 20:24:07 +00:00
Chris Lattner
b632f70353 remove broken SRA/rlwimi case 
llvm-svn: 23746
 2005-10-15 19:04:48 +00:00
Chris Lattner
d3946bbea6 Rename PPC32*.h to PPC*.h 
This completes the grand PPC file renaming

llvm-svn: 23745
 2005-10-14 23:59:06 +00:00
Chris Lattner
e870e24352 Merge PPCJITInfo.h and PPC32JITInfo.h. Note that the PowerPCJITInfo 
and PPC32JITInfo classes should be merged.

llvm-svn: 23744
 2005-10-14 23:53:41 +00:00
Chris Lattner
0405f3388f Rename PowerPC*.h to PPC*.h 
llvm-svn: 23743
 2005-10-14 23:51:18 +00:00
Chris Lattner
7bcc93b6c1 Rename PowerPCInstrBuilder.h -> PPC* 
llvm-svn: 23742
 2005-10-14 23:45:43 +00:00
Chris Lattner
4857375695 Nuke the PowerPCTargetMachine.h header. Note that the PowerPCTargetMachine 
still should be merged into the PPC32TargetMachine class

llvm-svn: 23741
 2005-10-14 23:44:05 +00:00
Chris Lattner
11127fcf98 Rename PowerPC*.td -> PPC*.td 
llvm-svn: 23740
 2005-10-14 23:40:39 +00:00
Chris Lattner
841f66a2d3 These are dead 
llvm-svn: 23739
 2005-10-14 23:38:51 +00:00