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Author SHA1 Message Date
Nate Begeman
44712926a0 Fix a couple bugs in the const div stuff where we'd generate MULHS/MULHU 
for types that aren't legal, and fail a divisor is less than zero
comparison, which would cause us to drop a subtract.

llvm-svn: 23846
 2005-10-20 17:45:03 +00:00
Chris Lattner
1f9a14683a don't use llabs with apparently VC++ doesn't have 
llvm-svn: 23845
 2005-10-20 17:01:00 +00:00
Chris Lattner
3c1570debb Fix order of eval problem from when I refactored this into a function. 
llvm-svn: 23844
 2005-10-20 16:56:40 +00:00
Andrew Lenharth
81d2375468 Sounds good, finish the intop conversion. 
llvm-svn: 23843
 2005-10-20 14:42:48 +00:00
Nate Begeman
bbce8c042c Add some more patterns for i64 on ppc 
llvm-svn: 23842
 2005-10-20 07:51:08 +00:00
Chris Lattner
ad14e0db81 add a new method, play around with some code. 
Fix a *bug* in the extendIntervalEndTo method.  In particular, if adding
[2:10) to an interval containing [0:2),[10:30), we produced [0:10),[10,30).
Which is not the most smart thing to do.  Now produce [0:30).

llvm-svn: 23841
 2005-10-20 07:39:25 +00:00
Chris Lattner
ca5f516c08 add a new method 
llvm-svn: 23840
 2005-10-20 07:37:59 +00:00
Chris Lattner
13d804c465 Refactor some code, pulling it out into a function. No functionality change. 
llvm-svn: 23839
 2005-10-20 06:06:30 +00:00
Chris Lattner
3451ac7691 Do NOT touch FP ops with LSR. This fixes a testcase Nate sent me from an 
inner loop like this:

LBB_RateConvertMono8AltiVec_2:  ; no_exit
        lis r2, ha16(.CPI_RateConvertMono8AltiVec_0)
        lfs f3, lo16(.CPI_RateConvertMono8AltiVec_0)(r2)
        fmr f3, f3
        fadd f0, f2, f0
        fadd f3, f0, f3
        fcmpu cr0, f3, f1
        bge cr0, LBB_RateConvertMono8AltiVec_2  ; no_exit

to an inner loop like this:

LBB_RateConvertMono8AltiVec_1:  ; no_exit
        fsub f2, f2, f1
        fcmpu cr0, f2, f1
        fmr f0, f2
        bge cr0, LBB_RateConvertMono8AltiVec_1  ; no_exit

Doh! good catch!

llvm-svn: 23838
 2005-10-20 04:47:10 +00:00
Chris Lattner
763a62efa6 Add some pattern fragments to simplify the repetitive parts of the patterns 
for some common ops and use them for a few examples.  Andrew, if you like
this, feel free to convert the rest over, if you hate it, feel free to
revert.

llvm-svn: 23837
 2005-10-20 04:21:06 +00:00
Chris Lattner
27aacf1b55 simplify this a bit by using immediates 
llvm-svn: 23836
 2005-10-20 03:57:03 +00:00
Nate Begeman
dc1a2a1f19 Move the target constant divide optimization up into the dag combiner, so 
that the nodes can be folded with other nodes, and we can not duplicate
code in every backend.  Alpha will probably want this too.

llvm-svn: 23835
 2005-10-20 02:15:44 +00:00
Nate Begeman
2b0b27775d Enable targets to say that integer divide is expensive, which will trigger 
an upcoming optimization in the DAG Combiner.

llvm-svn: 23834
 2005-10-20 02:14:14 +00:00
Andrew Lenharth
21beb13e51 forgot this one 
llvm-svn: 23833
 2005-10-20 00:29:02 +00:00
Andrew Lenharth
a7554852b3 ret 0; works, not much else 
still lots of uglyness.
Maybe calls will come soon.
Fixing the return value of things will be necessary to make alpha work.

llvm-svn: 23832
 2005-10-20 00:28:31 +00:00
John Criswell
9ced67a0e1 This fixes PR638: 
Regression/CodeGen/Generic/2004-02-08-UnwindSupport.llx

llvm-svn: 23831
 2005-10-19 20:07:15 +00:00
Jim Laskey
514a74d946 Added InstrSchedClass to each of the PowerPC Instructions. 
Note that when adding new instructions that you should refer to the table at the
bottom of PPCSchedule.td.

llvm-svn: 23830
 2005-10-19 19:51:16 +00:00
John Criswell
ef91e2976a Moved to Regression/Codegen/Generic. 
llvm-svn: 23829
 2005-10-19 18:52:52 +00:00
John Criswell
c1547066cd This is a generic test for all code generators. It originally came from 
Regression/Codegen/X86.

llvm-svn: 23826
 2005-10-19 18:51:07 +00:00
Nate Begeman
83f0f34140 Write patterns for the various shl and srl patterns that don't involve 
doing something clever.

llvm-svn: 23824
 2005-10-19 18:42:01 +00:00
John Criswell
190ec6e8f8 Force i386 code generation for an i386 specific test. 
llvm-svn: 23821
 2005-10-19 18:30:39 +00:00
Jim Laskey
0918760dec Push processor descriptions to the top of target and add command line info. 
llvm-svn: 23820
 2005-10-19 13:34:52 +00:00
Chris Lattner
1bac5bc8a3 add support for literal immediates in patterns to match, allowing us to 
write things like this:

def : Pat<(add GPRC:$in, 12),
          (ADD12 GPRC:$in)>;

Andrew: if this isn't enough or doesn't work for you, please lemme know.
llvm-svn: 23819
 2005-10-19 04:41:05 +00:00
Chris Lattner
61ae05f5dd now that tblgen is smarter, use integers directly. This should help Andrew too 
llvm-svn: 23818
 2005-10-19 04:32:04 +00:00
Chris Lattner
1b8609b570 Add basic support for integer constants in pattern results. 
llvm-svn: 23817
 2005-10-19 04:30:56 +00:00
Chris Lattner
cac2ff4864 Fix some checking that was causing duraid to get a perplexing assertion 
instead of a happy error message

llvm-svn: 23816
 2005-10-19 04:12:14 +00:00
Chris Lattner
39538be7a5 Add support for patterns that have physical registers in them. Testcase: 
def : Pat<(trunc G8RC:$in),
          (OR8To4 G8RC:$in, X0)>;

Even though this doesn't make any sense on PPC :)

llvm-svn: 23815
 2005-10-19 02:07:26 +00:00
Chris Lattner
2a81cf4395 Asserting here is to violent 
llvm-svn: 23814
 2005-10-19 01:55:23 +00:00
Chris Lattner
800f5628d5 teach ppc backend these are copies 
llvm-svn: 23813
 2005-10-19 01:50:36 +00:00
Chris Lattner
dac26c2440 Make this work with the internalize change 
llvm-svn: 23812
 2005-10-19 01:41:47 +00:00
Chris Lattner
73379995ab Convert these cases to patterns 
llvm-svn: 23811
 2005-10-19 01:38:02 +00:00
Chris Lattner
0816495607 Nate wants to define 'Pat's which turn into instructions that don't have 
patterns.  Certainly a logical request.

llvm-svn: 23810
 2005-10-19 01:27:22 +00:00
Nate Begeman
fccb39f398 Woo, it kinda works. We now generate this atrociously bad, but correct, 
code for long long foo(long long a, long long b) { return a + b; }

_foo:
        or r2, r3, r3
        or r3, r4, r4
        or r4, r5, r5
        or r5, r6, r6
        rldicr r2, r2, 32, 31
        rldicl r3, r3, 0, 32
        rldicr r4, r4, 32, 31
        rldicl r5, r5, 0, 32
        or r2, r3, r2
        or r3, r5, r4
        add r4, r3, r2
        rldicl r2, r4, 32, 32
        or r4, r4, r4
        or r3, r2, r2
        blr

llvm-svn: 23809
 2005-10-19 01:12:32 +00:00
Chris Lattner
fb8bc57259 Testcase that crashes llvmgcc in type layout 
llvm-svn: 23806
 2005-10-19 00:52:21 +00:00
Chris Lattner
6416c5627d apply some tblgen majik to simplify the X register definitions 
llvm-svn: 23805
 2005-10-19 00:17:55 +00:00
Nate Begeman
957648f18b Teach Legalize how to do something with EXTRACT_ELEMENT when the type of 
the pair of elements is a legal type.

llvm-svn: 23804
 2005-10-19 00:06:56 +00:00
Nate Begeman
722531ea21 Make a new reg class for 64 bit regs that aliases the 32 bit regs. This 
will have to tide us over until we get real subreg support, but it prevents
the PrologEpilogInserter from spilling 8 byte GPRs on a G4 processor.

Add some initial support for TRUNCATE and ANY_EXTEND, but they don't
currently work due to issues with ScheduleDAG.  Something wll have to be
figured out.

llvm-svn: 23803
 2005-10-19 00:05:37 +00:00
Nate Begeman
ee581735d9 Add the ability to lower return instructions to TargetLowering. This 
allows us to lower legal return types to something else, to meet ABI
requirements (such as that i64 be returned in two i32 regs on Darwin/ppc).

llvm-svn: 23802
 2005-10-18 23:23:37 +00:00
Chris Lattner
016497a971 Fix Generic/2005-10-18-ZeroSizeStackObject.ll by not requesting a zero 
sized stack object if either the array size or the type size is zero.

llvm-svn: 23801
 2005-10-18 22:14:06 +00:00
Chris Lattner
1cf142a7d4 new testcase 
llvm-svn: 23798
 2005-10-18 22:13:39 +00:00
Chris Lattner
82258b6abb remove hack 
llvm-svn: 23797
 2005-10-18 22:11:42 +00:00
Chris Lattner
213cd5c12b This was never updated for the project makefile changes 
llvm-svn: 23790
 2005-10-18 18:50:26 +00:00
Chris Lattner
645b455920 This never got updated to reflect the project makefile changes 
llvm-svn: 23789
 2005-10-18 18:48:30 +00:00
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