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Author SHA1 Message Date
Anton Korobeynikov
0d90b4596b Clarify the state-of-the-art 
llvm-svn: 47944
 2008-03-05 15:11:00 +00:00
Bill Wendling
dfa3472e4e Use AC_PATH_PROG correctly: 
http://www.gnu.org/software/autoconf/manual/autoconf.html#Generic-Programs

llvm-svn: 47943
 2008-03-05 09:28:02 +00:00
Evan Cheng
a36562006a isTwoAddress = 1 -> Constraints. 
llvm-svn: 47941
 2008-03-05 08:19:16 +00:00
Evan Cheng
6c2bb7c67e PSLLWri etc. are two-address instructions. 
llvm-svn: 47940
 2008-03-05 08:11:27 +00:00
Chris Lattner
7571a88209 add a note 
llvm-svn: 47939
 2008-03-05 07:22:39 +00:00
Chris Lattner
a9fcb187af Generalize FP constant shrinking optimization to apply to any vt 
except ppc long double.  This allows us to shrink constant pool
entries for x86 long double constants, which in turn allows us to
use flds/fldl instead of fldt.

llvm-svn: 47938
 2008-03-05 06:48:13 +00:00
Chris Lattner
8e6367195e Improve comment, pass in the original VT so that we can shrink a long double constant 
all the way to float, not stopping at double.

llvm-svn: 47937
 2008-03-05 06:46:58 +00:00
Evan Cheng
d421708e35 Ignore debugging related instructions if they get this far. 
llvm-svn: 47934
 2008-03-05 02:34:36 +00:00
Evan Cheng
a2939a16de Rather than asserting. Dump out the MI that we are not able to encode and abort. 
llvm-svn: 47933
 2008-03-05 02:08:03 +00:00
Dan Gohman
4ebf6b3b53 Codegen support for i128 UINT_TO_FP. This just fixes a 
bug in r47928 (Int64Ty is the correct type for the constant
pool entry here) and removes the asserts, now that the code
is capable of handling i128.

llvm-svn: 47932
 2008-03-05 02:07:31 +00:00
Evan Cheng
e0b3c221ab Add a target lowering hook to control whether it's worthwhile to compress fp constant. 
For x86, if sse2 is available, it's not a good idea since cvtss2sd is slower than a movsd load and it prevents load folding. On x87, it's important to shrink fp constant since fldt is very expensive.

llvm-svn: 47931
 2008-03-05 01:30:59 +00:00
Andrew Lenharth
95c88272c6 64bit CAS on 32bit x86. 
llvm-svn: 47929
 2008-03-05 01:15:49 +00:00
Dan Gohman
b987fe16e4 Codegen support for i128 SINT_TO_FP. 
llvm-svn: 47928
 2008-03-05 01:08:17 +00:00
Evan Cheng
18064ddb5b Refactor code. Remove duplicated functions that basically do the same thing as 
findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.

llvm-svn: 47927
 2008-03-05 00:59:57 +00:00
Devang Patel
4ca594a2d7 Skip functions that return multiple values. 
llvm-svn: 47924
 2008-03-05 00:36:59 +00:00
Devang Patel
a97b000dcc Check struct return type first. 
llvm-svn: 47922
 2008-03-05 00:27:05 +00:00
Bill Wendling
37f5b4586a Removed spurious EnablePPCRS check. 
llvm-svn: 47918
 2008-03-04 23:27:33 +00:00
Dale Johannesen
86867d323e Move PPC lowering functions into PPCTargetLowering 
class (cosmetic).  First piece of byval implementation;
this doesn't work yet.  No functional change.

llvm-svn: 47917
 2008-03-04 23:17:14 +00:00
Bill Wendling
cf70f2c2a0 Use -enable-ppc-regscavenger flag for these checks 
llvm-svn: 47916
 2008-03-04 23:16:26 +00:00
Bill Wendling
dc9de245cb Use a command-line option to turn register scavenging on/off for PPC. 
llvm-svn: 47915
 2008-03-04 23:13:51 +00:00
Devang Patel
a33f4b4cc7 Print types for all ret operands. 
llvm-svn: 47911
 2008-03-04 22:05:14 +00:00
Devang Patel
844c248410 Use while loop. 
llvm-svn: 47909
 2008-03-04 21:59:49 +00:00
Devang Patel
26d0fac377 Revert SmallVector ctor variants. 
llvm-svn: 47908
 2008-03-04 21:54:56 +00:00
Devang Patel
84e9abbb60 Use cast instead of dyn_cast. 
Update test to use multiple return value directly, instead of relying on -sretpromotion.

llvm-svn: 47907
 2008-03-04 21:45:28 +00:00
Devang Patel
219be17d65 Filter nested structs 
llvm-svn: 47906
 2008-03-04 21:32:09 +00:00
Devang Patel
a14b91d6a3 Handle multiple return values. 
llvm-svn: 47904
 2008-03-04 21:15:15 +00:00
Andrew Lenharth
f5674915c5 x86-64 atomics 
llvm-svn: 47903
 2008-03-04 21:13:33 +00:00
Anton Korobeynikov
f9d4370f22 Properly populate lists of defined/undefined symbols in presence of aliases 
llvm-svn: 47900
 2008-03-04 20:16:11 +00:00
Anton Korobeynikov
86514cffba Add alias with non-external aliasee to the list of exported symbols of the library. 
llvm-svn: 47899
 2008-03-04 20:15:35 +00:00
Devang Patel
1e76b493c7 Use appropriate index to get the result value. 
llvm-svn: 47897
 2008-03-04 19:22:54 +00:00
Devang Patel
9eb2e291fb Skip sret attribute while preparing attribute list for 
new function and new call sites.

llvm-svn: 47896
 2008-03-04 19:12:58 +00:00
Devang Patel
27426dedc0 Add FunctionType ctor variant that takes SmallVector params. 
llvm-svn: 47895
 2008-03-04 18:57:05 +00:00
Devang Patel
a880f004e8 Increment counter that keeps track of total number of sret promoted. 
llvm-svn: 47892
 2008-03-04 17:48:11 +00:00
Devang Patel
aef77854f9 Skip declarations. 
llvm-svn: 47890
 2008-03-04 17:47:06 +00:00
Devang Patel
e33efc5c23 Process externally visible functions also. Later on code generator will do the right thing. 
llvm-svn: 47889
 2008-03-04 17:46:26 +00:00
Devang Patel
10d720e1ba Collect statistics. 
llvm-svn: 47888
 2008-03-04 17:44:37 +00:00
Gordon Henriksen
1850fc4fa2 Fix a typo noticed by Erick Tryzelaar, 
llvm-svn: 47886
 2008-03-04 14:52:05 +00:00
Roman Levenstein
6979ffe3c2 Some improvements related to the computation of heights, depths of SUnits. 
The basic idea is that all these algorithms are computing the longest paths from the root node or to the exit node. Therefore the existing implementation that uses and iterative and potentially
exponential algorithm was changed to a well-known graph algorithm based on dynamic programming. It has a linear run-time.

llvm-svn: 47884
 2008-03-04 11:19:43 +00:00
Evan Cheng
02f86c6890 Refactor ExpandConstantFP so it can optimize load from constpool of types larger than f64 into extload from smaller types. 
llvm-svn: 47883
 2008-03-04 08:05:30 +00:00
Evan Cheng
14f556a6d7 Really fix the test. 
llvm-svn: 47882
 2008-03-04 08:01:56 +00:00
Evan Cheng
7a67175fcc Fix broken test. 
llvm-svn: 47881
 2008-03-04 07:59:13 +00:00
Evan Cheng
ae414db8d2 80 column violations. 
llvm-svn: 47878
 2008-03-04 03:20:06 +00:00
Evan Cheng
acb7d77409 Fix 80 column violations. 
llvm-svn: 47877
 2008-03-04 03:19:19 +00:00
Bill Wendling
c1b2e17a2c Did I say 'e = getNumOperands()'? I meant --e, of course. 
llvm-svn: 47875
 2008-03-04 00:48:15 +00:00
Evan Cheng
3123d6ced3 Add PR1501 test case. 
llvm-svn: 47874
 2008-03-04 00:47:45 +00:00
Evan Cheng
b5b16810ac Rename isOperand() to isOperandOf() (and other similar methods). It always confuses me. 
llvm-svn: 47872
 2008-03-04 00:41:45 +00:00
Evan Cheng
139517b682 Remove -always-fold-and-in-test. 
llvm-svn: 47871
 2008-03-04 00:40:35 +00:00
Bill Wendling
aa5ca3b98d Miscellaneous clean-ups based on Evan's feedback: 
- Cleaned up how the prologue-epilogue inserter loops over the instructions.
- Instead of restarting the processing of an instruction if we remove an
  implicit kill, just update the end iterator and make sure that the iterator
  isn't incremented.

llvm-svn: 47870
 2008-03-03 23:57:28 +00:00
Dan Gohman
ef264d521d Misc. APInt-ification in the DAGCombiner. 
llvm-svn: 47869
 2008-03-03 23:51:38 +00:00
Dan Gohman
5792bdb74e More APInt-ification. 
llvm-svn: 47868
 2008-03-03 23:35:36 +00:00