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1574 Commits

Author SHA1 Message Date
Andrew Lenharth
c9903eb2cc I really didn't think this was necessary. But, Legalize wasn't running again 
and legalizing the extload.  Strange.  Should fix most alpha regressions.

llvm-svn: 22329
 2005-07-02 20:58:53 +00:00
Andrew Lenharth
b8c48ce74e oops 
llvm-svn: 22320
 2005-06-30 19:32:57 +00:00
Andrew Lenharth
04aa18bd2a FP EXTLOAD is not support on all archs, expand to LOAD and FP_EXTEND 
llvm-svn: 22319
 2005-06-30 19:22:37 +00:00
Andrew Lenharth
898efb338a restore old srcValueNode behavior and try to to work around it 
llvm-svn: 22315
 2005-06-29 18:54:02 +00:00
Andrew Lenharth
edccb834bb tracking the instructions causing loads and stores provides more information than just the pointer being loaded or stored 
llvm-svn: 22311
 2005-06-29 15:57:19 +00:00
Andrew Lenharth
d534c5cb2a Adapt the code for handling uint -> fp conversion for the 32 bit case to 
handling it in the 64 bit case.  The two code paths should probably be merged.

llvm-svn: 22302
 2005-06-27 23:28:32 +00:00
Chris Lattner
8be1980730 iniital checkin of ELFWriter implementation 
For now, the elf writer is only capable of emitting an empty elf file, with
a section table and a section table string table.  This will be enhanced
in the future :)

llvm-svn: 22291
 2005-06-27 06:29:00 +00:00
Andrew Lenharth
4fd2bde906 If we support structs as va_list, we must pass pointers to them to va_copy 
See last commit for LangRef, this implements it on all targets.

llvm-svn: 22273
 2005-06-22 21:04:42 +00:00
Andrew Lenharth
a9214fec08 core changes for varargs 
llvm-svn: 22254
 2005-06-18 18:34:52 +00:00
Nate Begeman
ed49a51836 Fix bug 537 test 2, which checks to make sure that we fold A+(B-A) -> B for 
integer types.  Add a couple checks to not perform these kinds of transform
on floating point values.

llvm-svn: 22228
 2005-06-16 07:06:03 +00:00
Duraid Madina
f4ca48c89e aCC and STLport complained about this, because they're like that 
llvm-svn: 22053
 2005-05-15 13:05:48 +00:00
Chris Lattner
811dc49f55 Add some simplifications for MULH[SU]. This allows us to compile this: 
long %bar(long %X) {
  %Y = mul long %X, 4294967297
  ret long %Y
}

to this:

l1_bar:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %EDX, %EAX
        add %EDX, DWORD PTR [%ESP + 8]
        ret

instead of:

l1_bar:
        mov %ECX, DWORD PTR [%ESP + 4]
        mov %EDX, 1
        mov %EAX, %ECX
        mul %EDX
        add %EDX, %ECX
        add %EDX, DWORD PTR [%ESP + 8]
        mov %EAX, %ECX
        ret

llvm-svn: 22044
 2005-05-15 05:39:08 +00:00
Chris Lattner
54bf1cc313 When inserting callee-save register reloads, make sure to skip over any 
terminator instructions before the 'ret' in case the target has a
multi-instruction return sequence.

llvm-svn: 22041
 2005-05-15 03:09:58 +00:00
Chris Lattner
46de5c99bd Fix construction of ioport intrinsics, fixing X86/io.llx and io-port.llx 
llvm-svn: 22026
 2005-05-14 13:56:55 +00:00
Chris Lattner
052759b78c allow token chain at start or end of node 
llvm-svn: 22020
 2005-05-14 08:34:53 +00:00
Chris Lattner
d9e36f94bb remove special case hacks for readport/readio from the binary operator 
codepath

llvm-svn: 22019
 2005-05-14 07:45:46 +00:00
Chris Lattner
d1d8fbee2d Implement fixme's by memoizing nodes. 
llvm-svn: 22018
 2005-05-14 07:42:29 +00:00
Chris Lattner
ac7d55f114 Turn this into a wrapper for a simpler version of getNode. 
llvm-svn: 22016
 2005-05-14 07:32:14 +00:00
Chris Lattner
a035798c4b Eliminate special purpose hacks for dynamic_stack_alloc. 
llvm-svn: 22015
 2005-05-14 07:29:57 +00:00
Chris Lattner
b94e243d14 Use the general mechanism for creating multi-value nodes instead of using 
special case hacks.

llvm-svn: 22014
 2005-05-14 07:25:05 +00:00
Chris Lattner
ad411081fb Wrap long line, actually add node to the graph. 
llvm-svn: 22011
 2005-05-14 06:42:57 +00:00
Chris Lattner
6f7b63c7d7 legalize target-specific operations 
llvm-svn: 22010
 2005-05-14 06:34:48 +00:00
Chris Lattner
1afb5ae575 add a getNode() version that allows construction of any node type. 
llvm-svn: 22009
 2005-05-14 06:20:26 +00:00
Chris Lattner
6e81a4090f LowerOperation takes a dag 
llvm-svn: 22004
 2005-05-14 05:50:48 +00:00
Chris Lattner
369427683d Print the symbolic register name in a register allocator debug dump. 
llvm-svn: 22002
 2005-05-14 05:34:15 +00:00
Chris Lattner
1202c26d6e Allow targets to have a custom int64->fp expander if desired 
llvm-svn: 22001
 2005-05-14 05:33:54 +00:00
Chris Lattner
2163eeaa67 Align doubles on 8-byte boundaries if possible. 
llvm-svn: 21993
 2005-05-13 23:14:17 +00:00
Chris Lattner
d9dd5bb798 print stack object alignment in -print-machineinstr dumps 
llvm-svn: 21992
 2005-05-13 22:54:44 +00:00
Chris Lattner
a3e57bd844 Tolerate instrs with extra args 
llvm-svn: 21982
 2005-05-13 21:07:15 +00:00
Chris Lattner
9d788e93a6 Add an isTailCall flag to LowerCallTo 
llvm-svn: 21958
 2005-05-13 18:50:42 +00:00
Chris Lattner
3a76f85d43 Handle TAILCALL node 
llvm-svn: 21957
 2005-05-13 18:43:43 +00:00
Chris Lattner
01eba53a10 Emit function entry code after lowering hte arguments. 
llvm-svn: 21931
 2005-05-13 07:33:32 +00:00
Chris Lattner
fdc4816996 Allow targets to emit code into the entry block of each function 
llvm-svn: 21930
 2005-05-13 07:23:21 +00:00
Chris Lattner
5cd760d12d allow a virtual register to be associated with live-in values. 
llvm-svn: 21927
 2005-05-13 07:08:07 +00:00
Chris Lattner
670c7f516c Fix a problem that nate reduced for me. 
llvm-svn: 21923
 2005-05-13 05:17:00 +00:00
Chris Lattner
59bb0edb45 rename variables and functions to match renamed DAG nodes. Bonus feature: 
I can actually remember which one is which now!

llvm-svn: 21922
 2005-05-13 05:09:11 +00:00
Chris Lattner
c7013ec3a9 do not call expandop on the same value more than once. This fixes 
X86/2004-02-22-Casts.llx

llvm-svn: 21919
 2005-05-13 04:45:13 +00:00
Chris Lattner
51de10e0c6 fix a bad typeo 
llvm-svn: 21917
 2005-05-12 23:51:40 +00:00
Chris Lattner
00d2fb482f update comment 
llvm-svn: 21916
 2005-05-12 23:24:44 +00:00
Chris Lattner
094bbfcebb rename the ADJCALLSTACKDOWN/ADJCALLSTACKUP nodes to be CALLSEQ_START/BEGIN. 
llvm-svn: 21915
 2005-05-12 23:24:06 +00:00
Chris Lattner
dd2700de99 Pass calling convention to use into lower call to 
llvm-svn: 21900
 2005-05-12 19:56:57 +00:00
Chris Lattner
ad48ef0a7d fix expansion of ct[lt]z nodes 
llvm-svn: 21896
 2005-05-12 19:27:51 +00:00
Chris Lattner
6b5bacbc0b Expand 64-bit ctlz/cttz nodes for 32-bit targets 
llvm-svn: 21895
 2005-05-12 19:05:01 +00:00
Chris Lattner
3677432d39 Fix uint->fp casts on PPC, allowing UnitTests/2005-05-12-Int64ToFP to 
work on it.

llvm-svn: 21894
 2005-05-12 18:52:34 +00:00
Chris Lattner
dbcdac1ebf Allow something to be legalized multiple times. This can be used to reduce 
legalization iteration

llvm-svn: 21892
 2005-05-12 16:53:42 +00:00
Chris Lattner
a9a41e8856 Oops, don't do this after we figure out where to insert the call chains. 
llvm-svn: 21890
 2005-05-12 07:00:44 +00:00
Chris Lattner
b58308e6d4 Make sure to expand all nodes, avoiding unintentional node duplication. 
llvm-svn: 21889
 2005-05-12 06:54:21 +00:00
Chris Lattner
9f40cfa0a1 handle a common case generated by the uint64 -> FP code path better 
llvm-svn: 21888
 2005-05-12 06:27:02 +00:00
Chris Lattner
1c248e7462 add fixme 
llvm-svn: 21887
 2005-05-12 06:04:14 +00:00
Chris Lattner
1196356365 Fix a problem where early legalization can cause token chain problems. 
llvm-svn: 21885
 2005-05-12 04:49:08 +00:00