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Author SHA1 Message Date
Chris Lattner
fe5f01cca6 V8 -> Sparc 
llvm-svn: 25993
 2006-02-05 06:39:36 +00:00
Chris Lattner
1d15bef6ac Remove the SparcV8 backend. It has been renamed to be the Sparc backend. 
llvm-svn: 25992
 2006-02-05 06:33:29 +00:00
Chris Lattner
1e16099e9f remove V8 reference 
llvm-svn: 25991
 2006-02-05 06:32:59 +00:00
Evan Cheng
d46a7fc65a * Added SDNode::isOnlyUse(). 
* Fix hasNUsesOfValue(), it should be const.

llvm-svn: 25990
 2006-02-05 06:29:23 +00:00
Chris Lattner
ec37ba5968 SparcV8 -> Sparc 
llvm-svn: 25989
 2006-02-05 06:26:43 +00:00
Chris Lattner
f6080adc01 SparcV8 -> Sparc 
llvm-svn: 25988
 2006-02-05 05:56:51 +00:00
Chris Lattner
e4556b0928 These were moved to ../SPARC 
llvm-svn: 25987
 2006-02-05 05:53:48 +00:00
Chris Lattner
7048217c85 move V8 testcases here 
llvm-svn: 25986
 2006-02-05 05:52:55 +00:00
Chris Lattner
834685ef3a Rename SPARC V8 target to be the LLVM SPARC target. 
llvm-svn: 25985
 2006-02-05 05:50:24 +00:00
Chris Lattner
59378e7675 add a note 
llvm-svn: 25984
 2006-02-05 05:27:35 +00:00
Evan Cheng
c23d3cd6c3 Re-commit the last bit of change that was backed out. 
llvm-svn: 25983
 2006-02-05 05:25:07 +00:00
Evan Cheng
d5d3d7ad9e Re-committing the last bit of change. It shouldn't break PPC this time. 
llvm-svn: 25982
 2006-02-05 05:22:18 +00:00
Chris Lattner
4efafdb7f4 make sure that global doubles are aligned to 8 bytes 
llvm-svn: 25981
 2006-02-05 01:46:49 +00:00
Chris Lattner
74fd4905bc Use getPreferredAlignmentLog. 
llvm-svn: 25980
 2006-02-05 01:45:04 +00:00
Chris Lattner
085a324bfc Use the asmprinter to find out what the preferred alignment of a global is. 
This patch speeds up 172.mgrid from 31.81s to 11.39s on darwin/ppc.
Many many thanks to Nate for tracking down the root cause of the issue.

llvm-svn: 25979
 2006-02-05 01:30:45 +00:00
Chris Lattner
d2c4e9151e Implement the AsmPrinter::getPreferredAlignmentLog method. 
llvm-svn: 25978
 2006-02-05 01:29:18 +00:00
Chris Lattner
682b5a2626 add a new method, getPreferredAlignmentLog. 
llvm-svn: 25977
 2006-02-05 01:24:06 +00:00
Andrew Lenharth
b28db2290a linkage fix for weak functions 
llvm-svn: 25976
 2006-02-04 19:13:09 +00:00
Jeff Cohen
4f433dafa5 Fix VC++ warning. 
llvm-svn: 25975
 2006-02-04 16:20:31 +00:00
Chris Lattner
e4dc660cbb Use SCEVExpander::InsertCastOfTo instead of our own code. This reduces 
#LLVM LOC, and auto-cse's cast instructions.

llvm-svn: 25974
 2006-02-04 09:52:43 +00:00
Chris Lattner
151eb931ec Pull the InsertCastOfTo out of the header, implement CSE'ing of arguments. 
llvm-svn: 25973
 2006-02-04 09:51:53 +00:00
Chris Lattner
d92225434a Refactor a bunch of code into a non-inlined method 
llvm-svn: 25972
 2006-02-04 09:51:33 +00:00
Chris Lattner
15ab5c6d0c Temporarily revert this patch, which probably breaks with the 
tblgen patch reverted.

llvm-svn: 25971
 2006-02-04 09:24:16 +00:00
Chris Lattner
951217976d Temporarily revert the last change, which breaks PPC and other targets that 
DO select things.

llvm-svn: 25970
 2006-02-04 09:23:06 +00:00
Chris Lattner
964e9b66f8 Value# select instructions, allowing -gcse to remove duplicates 
llvm-svn: 25969
 2006-02-04 09:15:29 +00:00
Evan Cheng
6a366c5eda Complex pattern's custom matcher should not call Select() on any operands. 
Select them afterwards if it returns true.

llvm-svn: 25968
 2006-02-04 08:50:49 +00:00
Chris Lattner
0ddab3fc99 Custom lower VAARG for the case when we are doing vaarg(double). In this 
case, the double being loaded may not be 8-byte aligned, so we have to use
our standard bit_convert game.

llvm-svn: 25967
 2006-02-04 08:31:30 +00:00
Chris Lattner
6466bb23bc Fix a nasty typo that broke functions with big stack frames. 
llvm-svn: 25966
 2006-02-04 08:04:21 +00:00
Chris Lattner
bb656b4730 fix a bug in my last checkin 
llvm-svn: 25965
 2006-02-04 07:48:46 +00:00
Chris Lattner
8741126ea7 Fix two significant bugs in LSR: 
1. When rewriting code in outer loops, sometimes we would insert code into
   inner loops that is invariant in that loop.
2. Notice that 4*(2+x) is 8+4*x and use that to simplify expressions.

This is a performance neutral change.

llvm-svn: 25964
 2006-02-04 07:36:50 +00:00
Nate Begeman
ba19f3f93c Remove some stuff that now works 
llvm-svn: 25963
 2006-02-04 07:29:35 +00:00
Chris Lattner
921ddbae1f add a note 
llvm-svn: 25962
 2006-02-04 07:07:31 +00:00
Chris Lattner
3b39e70a72 Two changes: 
1. Treat FMOVD as a copy instruction, to help with coallescing in V9 mode
2. When in V9 mode, insert FMOVD instead of FpMOVD instructions, as we don't
   ever rewrite FpMOVD instructions into FMOVS instructions, thus we just end
   up with commented out copies!
This should fix a bunch of failures in V9 mode on sparc.

llvm-svn: 25961
 2006-02-04 06:58:46 +00:00
Evan Cheng
062ac6e46b Get rid of some memory leaks identified by Valgrind 
llvm-svn: 25960
 2006-02-04 06:49:00 +00:00
Chris Lattner
43978e529e add a method 
llvm-svn: 25959
 2006-02-04 05:49:01 +00:00
Chris Lattner
d8d71c2b6a Let bugpoint work on sparc with v9 instructions enabled. 
llvm-svn: 25958
 2006-02-04 05:02:27 +00:00
Jeff Cohen
291586095d Fix VC++ warning. 
llvm-svn: 25957
 2006-02-04 03:27:39 +00:00
Jeff Cohen
965da754a0 Keep Visual Studio informed. 
llvm-svn: 25956
 2006-02-04 03:27:04 +00:00
Chris Lattner
013f5fc2fa Add initial support for immediates. This allows us to compile this: 
int %rlwnm(int %A, int %B) {
  %C = call int asm "rlwnm $0, $1, $2, $3, $4", "=r,r,r,n,n"(int %A, int %B, int 4, int 17)
  ret int %C
}

into:

_rlwnm:
        or r2, r3, r3
        or r3, r4, r4
        rlwnm r2, r2, r3, 4, 17    ;; note the immediates :)
        or r3, r2, r2
        blr

llvm-svn: 25955
 2006-02-04 02:26:14 +00:00
Evan Cheng
8fd9fd7866 Remove an unnecessary predicate. 
llvm-svn: 25954
 2006-02-04 02:23:01 +00:00
Evan Cheng
078962656b Separate FILD and FILD_FLAG, the later is only used for SSE2. It produces a 
flag so it can be flagged to a FST.

llvm-svn: 25953
 2006-02-04 02:20:30 +00:00
Chris Lattner
13f609dfe2 Initial early support for non-register operands, like immediates 
llvm-svn: 25952
 2006-02-04 02:16:44 +00:00
Chris Lattner
785771db97 implementation of some methods for inlineasm 
llvm-svn: 25951
 2006-02-04 02:13:02 +00:00
Chris Lattner
2395722dbd Add some methods for inline asm support. 
llvm-svn: 25950
 2006-02-04 02:12:09 +00:00
Chris Lattner
08dba8d9f8 Handle another case exposed on X86. 
llvm-svn: 25949
 2006-02-03 23:50:46 +00:00
Chris Lattner
f0ef4b4391 Fix a nasty problem on two-address machines in the following situation: 
store EAX -> [ss#0]
[ss#0] += 1
...
use(EAX)

In this case, it is not valid to rewrite this as:


store EAX -> [ss#0]
EAX += 1
store EAX -> [ss#0]  ;;; this would also delete the store above
...
use(EAX)

... because EAX is not a dead at that point.  Keep track of which registers
we are allowed to clobber, and which ones we aren't, and don't clobber the
ones we're not supposed to.  :)

This should resolve the issues on X86 last night.

llvm-svn: 25948
 2006-02-03 23:28:46 +00:00
Chris Lattner
03b42d7724 significantly simplify the VirtRegMap code by pulling the SpillSlotsAvailable 
and PhysRegsAvailable maps out into a new AvailableSpills struct.  No
functionality change.

This paves the way for a bugfix, coming up next.

llvm-svn: 25947
 2006-02-03 23:13:58 +00:00
Nate Begeman
5a58572b9b Implement some feedback from sabre 
llvm-svn: 25946
 2006-02-03 22:38:07 +00:00
Nate Begeman
2d9838ec9b Add a framework for eliminating instructions that produces undemanded bits. 
llvm-svn: 25945
 2006-02-03 22:24:05 +00:00
Chris Lattner
393e9d10dd add a note 
llvm-svn: 25944
 2006-02-03 22:06:45 +00:00