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35 Commits

Author SHA1 Message Date
Chris Lattner
742b77f9af Clarify assertion. 
llvm-svn: 19597
 2005-01-16 02:23:34 +00:00
Chris Lattner
01e2ce8a4c Move some information into the TargetLowering object. 
llvm-svn: 19583
 2005-01-16 01:11:45 +00:00
Chris Lattner
0777f84d53 legalize a bunch of operations that I missed. 
llvm-svn: 19580
 2005-01-16 00:38:00 +00:00
Chris Lattner
8c4c81d6b3 Fix some serious bugs in promotion. 
llvm-svn: 19578
 2005-01-16 00:17:42 +00:00
Chris Lattner
df02c93d90 Implement promotion of a whole bunch more operators. I think that this is 
basically everything.

llvm-svn: 19576
 2005-01-15 22:16:26 +00:00
Chris Lattner
1ab9009270 Add support for legalizing FP_ROUND_INREG, SIGN_EXTEND_INREG, and 
ZERO_EXTEND_INREG for targets that don't support them.

llvm-svn: 19573
 2005-01-15 07:15:18 +00:00
Chris Lattner
fdd07b4092 Add support for promoting ADD/MUL. 
Add support for new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators.
Realize that if we do any promotions, we need to iterate SelectionDAG
construction.

llvm-svn: 19569
 2005-01-15 06:18:18 +00:00
Chris Lattner
94b8a3e50c Add intitial support for promoting some operators. 
llvm-svn: 19565
 2005-01-15 05:21:40 +00:00
Chris Lattner
2dfbc4fddd Adjust to CopyFromReg changes, implement deletion of truncating/extending 
stores/loads.

llvm-svn: 19562
 2005-01-14 22:38:01 +00:00
Chris Lattner
0974002024 Start implementing truncating stores and extending loads. 
llvm-svn: 19559
 2005-01-14 22:08:15 +00:00
Chris Lattner
7a8788c9ac Add new ImplicitDef node, rename CopyRegSDNode class to RegSDNode. 
llvm-svn: 19535
 2005-01-13 20:50:02 +00:00
Chris Lattner
37a5de6eb0 Legalize new node, add assertion. 
llvm-svn: 19527
 2005-01-13 17:59:25 +00:00
Chris Lattner
1b3b24f116 Fix sign extend to long. When coming from sbyte, we used to generate: 
movsbl 4(%esp), %eax
        movl %eax, %edx
        sarl $7, %edx

Now we generate:

        movsbl 4(%esp), %eax
        movl %eax, %edx
        sarl $31, %edx

Which is right.

llvm-svn: 19515
 2005-01-12 18:19:52 +00:00
Reid Spencer
c8c50250a1 Shut up warnings with GCC 3.4.3 about uninitialized variables. 
llvm-svn: 19512
 2005-01-12 14:53:45 +00:00
Chris Lattner
8de5a27681 Squelch optimized warning. 
llvm-svn: 19475
 2005-01-11 17:46:49 +00:00
Chris Lattner
963af6652b Teach legalize to lower MEMSET/MEMCPY/MEMMOVE operations if the target 
does not support them.

llvm-svn: 19465
 2005-01-11 05:57:22 +00:00
Chris Lattner
5433d8de29 Lower to the correct functions. This fixes FreeBench/fourinarow 
llvm-svn: 19436
 2005-01-10 21:02:37 +00:00
Chris Lattner
d674d08230 Fix a bug legalizing call instructions (make sure to remember all result 
values), and eliminate some switch statements.

llvm-svn: 19417
 2005-01-09 19:43:23 +00:00
Chris Lattner
ac23355362 Fix a minor bug legalizing dynamic_stackalloc. This allows us to compile 
std::__pad<wchar_t, std::char_traits<wchar_t> >::_S_pad(std::ios_base&, wchar_t, wchar_t*, wchar_t const*, int, int, bool)

from libstdc++

llvm-svn: 19416
 2005-01-09 19:07:54 +00:00
Chris Lattner
b3e31c6def Teach legalize to deal with DYNAMIC_STACKALLOC (aka a dynamic llvm alloca) 
llvm-svn: 19415
 2005-01-09 19:03:49 +00:00
Chris Lattner
3b52b2f6c2 Tighten up assertions. 
llvm-svn: 19397
 2005-01-08 20:35:13 +00:00
Chris Lattner
a58b3f48ef Silence VS warnings. 
llvm-svn: 19384
 2005-01-08 19:52:31 +00:00
Chris Lattner
38545e9952 Implement handling of most long operators through libcalls. 
Fix a bug legalizing "ret (Val,Val)"

llvm-svn: 19375
 2005-01-08 19:27:05 +00:00
Chris Lattner
fd84495692 Add support for FP->INT conversions and back. 
llvm-svn: 19369
 2005-01-08 08:08:56 +00:00
Chris Lattner
e759d984cf Implement the 'store FPIMM, Ptr' -> 'store INTIMM, Ptr' optimization for 
all targets.

llvm-svn: 19366
 2005-01-08 06:25:56 +00:00
Chris Lattner
6f461f406e Add support for truncating integer casts from long. 
llvm-svn: 19358
 2005-01-07 22:37:48 +00:00
Chris Lattner
79ca9cdb7e Fix a bug in load expansion legalization and ret legalization. This fixes 
CodeGen/Generic/select.ll:castconst.

llvm-svn: 19357
 2005-01-07 22:28:47 +00:00
Chris Lattner
a834e96647 Legalize unconditional branches too 
llvm-svn: 19356
 2005-01-07 22:12:08 +00:00
Chris Lattner
3f2ce91a99 Implement support for long GEP indices on 32-bit archs and support for 
int GEP indices on 64-bit archs.

llvm-svn: 19354
 2005-01-07 21:56:57 +00:00
Chris Lattner
60e3842843 implement legalization of a bunch more operators. 
llvm-svn: 19352
 2005-01-07 21:45:56 +00:00
Chris Lattner
8c6c12da86 Fix another bug legalizing calls! 
llvm-svn: 19350
 2005-01-07 21:35:32 +00:00
Chris Lattner
d671aa053c Fix a bug legalizing calls 
llvm-svn: 19348
 2005-01-07 21:34:13 +00:00
Chris Lattner
3871313761 After legalizing a DAG, delete dead nodes to save space. 
llvm-svn: 19346
 2005-01-07 21:09:37 +00:00
Chris Lattner
39baa91b9a Teach legalize how to handle condbranches 
llvm-svn: 19339
 2005-01-07 08:19:42 +00:00
Chris Lattner
fd473edcd8 Initial implementation of the DAG legalization. This still has a long way 
to go, but it does work for some non-trivial cases now.

llvm-svn: 19329
 2005-01-07 07:47:09 +00:00