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33 Commits

Author SHA1 Message Date
Evan Cheng
093adf3ff9 Implement Thumb2 ldr. 
After much back and forth, I decided to deviate from ARM design and split LDR into 4 instructions (r + imm12, r + imm8, r + r << imm12, constantpool). The advantage of this is 1) it follows the latest ARM technical manual, and 2) makes it easier to reduce the width of the instruction later. The down side is this creates more inconsistency between the two sub-targets. We should split ARM LDR instruction in a similar fashion later. I've added a README entry for this.

llvm-svn: 74420
 2009-06-29 07:51:04 +00:00
Evan Cheng
2eb1525e2a Add a note about commuting conditional move. 
llvm-svn: 74241
 2009-06-26 00:28:48 +00:00
Evan Cheng
f23c8a5c8a These are done / no longer applicable. 
llvm-svn: 74239
 2009-06-26 00:25:27 +00:00
Bob Wilson
6db76aaf10 Add support for ARM's Advanced SIMD (NEON) instruction set. 
This is still a work in progress but most of the NEON instruction set
is supported.

llvm-svn: 73919
 2009-06-22 23:27:02 +00:00
Chris Lattner
706eb604ae several entries got significantly better, though they still aren't done. 
llvm-svn: 44382
 2007-11-27 22:41:52 +00:00
Chris Lattner
d2ee2dad04 implement a trivial readme entry. 
llvm-svn: 44380
 2007-11-27 22:36:16 +00:00
Chris Lattner
57e2fa4ba0 Add an easy microoptimization I noticed. 
llvm-svn: 43164
 2007-10-19 03:29:26 +00:00
Chris Lattner
d4602cc0e7 Add some notes about better flag handling. 
llvm-svn: 41808
 2007-09-10 21:43:18 +00:00
Evan Cheng
05c784cc30 Update. 
llvm-svn: 38513
 2007-07-10 21:49:47 +00:00
Dale Johannesen
d6f582af9d Remove item: thumb padding in constant islands 
llvm-svn: 36586
 2007-04-30 00:32:06 +00:00
Chris Lattner
f7ac47b4e2 add a crazy idea 
llvm-svn: 36273
 2007-04-20 20:18:43 +00:00
Chris Lattner
af5c203dbd add a note 
llvm-svn: 36203
 2007-04-17 18:03:00 +00:00
Evan Cheng
fb9c4c2edc Updated. 
llvm-svn: 35229
 2007-03-20 22:32:39 +00:00
Evan Cheng
a4e410aa9c Minor stuff. 
llvm-svn: 35049
 2007-03-09 19:46:06 +00:00
Evan Cheng
d7201d12af Add comments about LSR / ARM. 
llvm-svn: 35048
 2007-03-09 19:35:33 +00:00
Evan Cheng
2e6f19d8c8 Unfinished work and ideas related to register scavenger. 
llvm-svn: 35047
 2007-03-09 19:34:51 +00:00
Dale Johannesen
10a05b538d apply comments from review of last patch 
llvm-svn: 35045
 2007-03-09 19:18:59 +00:00
Dale Johannesen
23c2498e23 Add some observations from CoreGraphics benchmark. Remove register 
scavenging todo item, since it is now implemented.

llvm-svn: 35044
 2007-03-09 17:58:17 +00:00
Dale Johannesen
5ec68034ee Add intelligence about where to break large blocks. 
llvm-svn: 34755
 2007-02-28 18:41:23 +00:00
Dale Johannesen
f6f34ec2e0 cosmetic changes from review of last patch. obvious 
llvm-svn: 34598
 2007-02-25 18:31:31 +00:00
Dale Johannesen
ccecc12da5 Removed WaterListOffset, inserted BBOffsets. Remove TODO item about this 
from README.
When no water available, use end of block if in range.  (More to do here.)

llvm-svn: 34563
 2007-02-25 00:47:03 +00:00
Dale Johannesen
544968d665 rewrite of constant islands 
llvm-svn: 34523
 2007-02-23 05:02:36 +00:00
Chris Lattner
63479262b4 add a note 
llvm-svn: 33778
 2007-02-02 04:36:46 +00:00
Evan Cheng
c6e1d453d3 ARM backend contribution from Apple. 
llvm-svn: 33353
 2007-01-19 07:51:42 +00:00
Rafael Espindola
e3aafd29a9 add note 
llvm-svn: 32452
 2006-12-11 23:56:10 +00:00
Rafael Espindola
31f59f5b94 add FSTD and FSTS 
llvm-svn: 30996
 2006-10-17 13:36:07 +00:00
Rafael Espindola
d255bfb09b implement LDRB, LDRSB, LDRH and LDRSH 
llvm-svn: 30976
 2006-10-16 17:17:22 +00:00
Rafael Espindola
93359fa883 implement smull and umull 
llvm-svn: 30975
 2006-10-16 16:33:29 +00:00
Rafael Espindola
fed11f040c add a note 
llvm-svn: 30828
 2006-10-09 14:18:33 +00:00
Rafael Espindola
90a24709fb implement FLDD 
llvm-svn: 30802
 2006-10-07 14:03:39 +00:00
Rafael Espindola
b77754ce4d Implement floating point constants 
llvm-svn: 30704
 2006-10-03 17:27:58 +00:00
Rafael Espindola
9cfd72a3d1 add a note 
llvm-svn: 30581
 2006-09-22 11:36:17 +00:00
Rafael Espindola
af0512fc8d add a README.txt 
llvm-svn: 29814
 2006-08-22 12:22:46 +00:00