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3c19a3950c
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Author SHA1 Message Date
Scott Michel
3c19a3950c - Expand tabs to spaces. 
- select_bits.ll now fully functional now that PR1993 is closed. It was
  previously broken by refactoring in SPUInstrInfo.td and using multiclasses.
- Same for eqv.ll

llvm-svn: 47972
 2008-03-05 23:00:19 +00:00
Steve Naroff
a93ec57f15 Update vcproj file. 
llvm-svn: 47969
 2008-03-05 22:30:39 +00:00
Anton Korobeynikov
f2f352ec48 Try hard to link aliases. Checks can be too strict by now. 
llvm-svn: 47968
 2008-03-05 22:22:46 +00:00
Evan Cheng
8f5092bea8 Fix a coalescer bug wrt how dead copy interval is shortened. 
llvm-svn: 47966
 2008-03-05 22:09:42 +00:00
Devang Patel
e2c01a6c92 Handle 'ret' with multiple values. 
llvm-svn: 47965
 2008-03-05 21:50:24 +00:00
Andrew Lenharth
52436854a2 test for something more interesting than not crashing 
llvm-svn: 47962
 2008-03-05 20:24:26 +00:00
Andrew Lenharth
7ac03edf8d sync ops on ptrs, was breaking libgomp 
llvm-svn: 47960
 2008-03-05 19:48:27 +00:00
Daniel Berlin
2a8fd44b9d Add Hybrid Cycle Detection to Andersen's analysis. 
Patch by Curtis Dunham.

llvm-svn: 47959
 2008-03-05 19:31:47 +00:00
Dale Johannesen
8322b6fb70 Clarify that CALLSEQ_START..END may not be nested, 
and add some protection against creating such.

llvm-svn: 47957
 2008-03-05 19:14:03 +00:00
Scott Michel
15cc6fabaf This patch fixes a problem encountered by the CellSPU backend where variants 
were being pruned in patterns where a variable was used more than once, e.g.:

  (or (and R32C:$rA, R32C:$rC), (and R32C:$rB, (not R32C:$rC)))

In this example, $rC is used more than once and is actually significant to
instruction selection pattern matching when commuted variants are produced.
This patch scans the pattern's clauses and collects the variables, creating
a set of variables that are used more than once. TreePatternNode::isIsomorphicTo()
also understands that multiply-used variables are significant.

llvm-svn: 47950
 2008-03-05 17:49:05 +00:00
Chris Lattner
83e0b885f8 evan implemented this. 
llvm-svn: 47948
 2008-03-05 17:11:51 +00:00
Anton Korobeynikov
8302c973b4 Fix test not to emit junk into source directory 
llvm-svn: 47947
 2008-03-05 15:44:25 +00:00
Anton Korobeynikov
d78f82b480 Testcase for PR2054 
llvm-svn: 47946
 2008-03-05 15:43:58 +00:00
Anton Korobeynikov
79f6795ebb Remember the source->dest mapping when copying aliases. This fixes PR2054 
llvm-svn: 47945
 2008-03-05 15:27:21 +00:00
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