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b19069959d
Commit Graph

382 Commits

Author SHA1 Message Date
Chris Lattner
b19069959d switch TargetLowering::getConstraintType to take the entire constraint, 
not just the first letter.  No functionality change.

llvm-svn: 35322
 2007-03-25 02:14:49 +00:00
Dale Johannesen
44c0a5d545 repair x86 performance, dejagnu problems from previous change 
llvm-svn: 35245
 2007-03-21 21:51:52 +00:00
Evan Cheng
fb9c4c2edc Updated. 
llvm-svn: 35229
 2007-03-20 22:32:39 +00:00
Dale Johannesen
3e422e3b49 do not share old induction variables when this would result in invalid 
instructions (that would have to be split later)

llvm-svn: 35227
 2007-03-20 21:54:54 +00:00
Lauro Ramos Venancio
11d7d3fcaf bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted: 
mov lr, pc
    bx lr
So, the function was not called.

llvm-svn: 35218
 2007-03-20 17:57:23 +00:00
Evan Cheng
4fec9d7228 Make two piece constant generation as a single instruction. It's re-materialized as a load from constantpool. 
llvm-svn: 35207
 2007-03-20 08:11:30 +00:00
Evan Cheng
11976abd1e New entry. 
llvm-svn: 35206
 2007-03-20 08:10:17 +00:00
Evan Cheng
41f4f032ee Added MRegisterInfo hook to re-materialize an instruction. 
llvm-svn: 35205
 2007-03-20 08:09:38 +00:00
Chris Lattner
1ed603c0d9 fix indentation 
llvm-svn: 35202
 2007-03-20 02:25:53 +00:00
Dale Johannesen
c526b970ce fix obvious comment bug 
llvm-svn: 35196
 2007-03-20 00:30:56 +00:00
Evan Cheng
8d374caead Fix naming inconsistencies. 
llvm-svn: 35163
 2007-03-19 07:48:02 +00:00
Evan Cheng
7cbf4c4582 Special LDR instructions to load from non-pc-relative constantpools. These are 
rematerializable. Only used for constant generation for now.

llvm-svn: 35162
 2007-03-19 07:20:03 +00:00
Evan Cheng
389cf8e719 Constant generation instructions are re-materializable. 
llvm-svn: 35161
 2007-03-19 07:09:02 +00:00
Lauro Ramos Venancio
f756184c5e Only ARMv6 has BSWAP. 
Fix MultiSource/Applications/aha test.

llvm-svn: 35128
 2007-03-16 22:54:16 +00:00
Evan Cheng
4858c6f781 Added isLegalAddressExpression(). Only allows X +/- C for now. 
llvm-svn: 35122
 2007-03-16 08:43:56 +00:00
Evan Cheng
7cbde8351a AM2 can match 2^n +/- 1. e.g. ldr r3, [r2, r2, lsl #2] 
llvm-svn: 35088
 2007-03-13 21:05:54 +00:00
Evan Cheng
7b24b3e474 Zero is always a legal AM immediate. 
llvm-svn: 35087
 2007-03-13 20:37:59 +00:00
Evan Cheng
92712d4884 Implement getTargetLowering() or else LSR won't be using ARM specific hooks. 
llvm-svn: 35077
 2007-03-13 01:20:42 +00:00
Evan Cheng
7767159f08 Updated TargetLowering LSR addressing mode hooks for ARM and Thumb. 
llvm-svn: 35075
 2007-03-12 23:30:29 +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
Evan Cheng
7ef8db2fb5 Implement inline asm modifier c. 
llvm-svn: 35035
 2007-03-08 22:42:46 +00:00
Evan Cheng
6445ce2423 Fix a typo. 
llvm-svn: 35030
 2007-03-08 21:59:30 +00:00
Evan Cheng
7d528d089c Putting more constants which do not contain relocations into .literal{4|8|16} 
llvm-svn: 35026
 2007-03-08 08:31:54 +00:00
Evan Cheng
393fd04eb4 Change register allocation order to Dale's suggestion. 
llvm-svn: 35021
 2007-03-08 02:56:40 +00:00
Evan Cheng
2c3e4ab3a6 Bug fix. Not advancing the register scavenger iterator correctly. 
llvm-svn: 35020
 2007-03-08 02:55:08 +00:00
Evan Cheng
c79408b032 For Darwin, put constant data into .const, .const_data, .literal{4|8|16} 
sections.

llvm-svn: 35017
 2007-03-08 01:25:25 +00:00
Evan Cheng
51c3e53eb7 Only safe to use a call-clobbered or spilled callee-saved register as scratch register. 
llvm-svn: 35010
 2007-03-07 20:30:36 +00:00
Anton Korobeynikov
85d6c1ebad Refactoring of formal parameter flags. Enable properly use of 
zext/sext/aext stuff.

llvm-svn: 35008
 2007-03-07 16:25:09 +00:00
Evan Cheng
493960579f ARM always use register scavenger. No longer reserves R12. 
llvm-svn: 34999
 2007-03-07 02:46:23 +00:00
Evan Cheng
4e01b11512 Fix some brittle code. Watch out for cases where register scavenger is pointing to deleted instructions. 
llvm-svn: 34998
 2007-03-07 02:38:05 +00:00
Evan Cheng
9839628fd1 Fix one more Thumb eliminateFrameIndex bug. 
llvm-svn: 34990
 2007-03-07 00:12:18 +00:00
Evan Cheng
63ffd3e17f Register scavenging is now on by default for ARM. 
llvm-svn: 34987
 2007-03-06 22:02:53 +00:00
Evan Cheng
6453ad00d2 Make load / store optimizer use register scavenger. 
llvm-svn: 34986
 2007-03-06 21:59:20 +00:00
Evan Cheng
228403bfcb Code clean up. Prepare to use register scavenger. 
llvm-svn: 34976
 2007-03-06 18:02:41 +00:00
Evan Cheng
7c90fb2d67 Scavenge a register using the register scavenger when needed. 
llvm-svn: 34966
 2007-03-06 10:03:56 +00:00
Anton Korobeynikov
6da6c8c48b Use new SDIselParamAttr enumeration. This removes "magick" constants 
from formal attributes' flags processing.

llvm-svn: 34963
 2007-03-06 08:12:33 +00:00
Lauro Ramos Venancio
3f855f6a54 Use init_array/fini_array sections for static contructors/destructors when the ABI is AAPCS. 
Fix SingleSource/Regression/C/ConstructorDestructorAttributes test on arm-linux-gnueabi.

llvm-svn: 34931
 2007-03-05 17:59:58 +00:00
Dale Johannesen
a6003a9eb6 eliminate unnecessary reset of SP in epilog on darwin 
llvm-svn: 34824
 2007-03-02 01:17:17 +00:00
Evan Cheng
07dcde8ba2 Use a spilled free callee-saved register as scratch register. 
llvm-svn: 34785
 2007-03-01 08:57:52 +00:00
Evan Cheng
8d3d4155e5 - Track which callee-saved registers are spilled. 
- Some code clean up.

llvm-svn: 34783
 2007-03-01 08:26:31 +00:00
Evan Cheng
f771a323c2 Switch from std::vector<bool> to BitVector. 
llvm-svn: 34781
 2007-03-01 07:52:44 +00:00
Bill Wendling
2aabf75e82 Get rid of verboten <iostream> include. 
llvm-svn: 34777
 2007-03-01 06:05:39 +00:00
Dale Johannesen
f38e3d7085 Changes requested in review of last pass. Also pulled isThumb into a 
member, instead of resetting in every function that uses it.

llvm-svn: 34764
 2007-02-28 23:20:38 +00:00
Evan Cheng
5dc0ece7cb Doh. ARM::PC is obvious a reserved register. 
llvm-svn: 34763
 2007-02-28 23:12:34 +00:00
Dale Johannesen
5ec68034ee Add intelligence about where to break large blocks. 
llvm-svn: 34755
 2007-02-28 18:41:23 +00:00
Evan Cheng
db591ecaa8 Make requiresRegisterScavenging determination on a per MachineFunction basis. 
llvm-svn: 34711
 2007-02-28 00:59:19 +00:00