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Author SHA1 Message Date
Nate Begeman
8eddad3985 Fix BranchCC (it's still dumb), and implement FP select (also dumb) 
llvm-svn: 20935
 2005-03-29 22:48:55 +00:00
Nate Begeman
43b127ca0a Implement integer select and i1 sign extend 
llvm-svn: 20934
 2005-03-29 22:24:51 +00:00
Nate Begeman
d5d90ec76b Implement SetCC, fix ZERO_EXTEND_INREG 
llvm-svn: 20933
 2005-03-29 21:54:38 +00:00
Chris Lattner
761bb09edb import all of the rest of the stubs that dsa uses for direct comparison 
llvm-svn: 20932
 2005-03-29 20:36:05 +00:00
Tanya Lattner
bc14e623e3 Compare dependence analysis with llvm instructions versus machine instrutions. the problem with using machine instructions and alias analysis is that aa does not handle tmp instructions. 
llvm-svn: 20931
 2005-03-29 20:35:10 +00:00
Tanya Lattner
7edde71619 Dependence analyzer that just determines dependences within a loop for loads and stores using alias analysis. 
llvm-svn: 20930
 2005-03-29 20:33:42 +00:00
Chris Lattner
94ea4d104c learn about some more functions. 
llvm-svn: 20929
 2005-03-29 20:04:24 +00:00
Andrew Lenharth
21c4590f96 Fix up some types and constants 
llvm-svn: 20928
 2005-03-29 19:24:04 +00:00
Chris Lattner
cc1644eb2c Fix a problem where we not marking incoming arguments to functions with 
external linkage as incomplete.

llvm-svn: 20927
 2005-03-29 19:16:59 +00:00
Chris Lattner
02a4d3bd9b Fix a bug that andrew noticed where we do not correctly sign/zero extend 
returned integer values all of the way to 64-bits (we only did it to 32-bits
leaving the top bits undefined).  This causes problems for targets like alpha
whose ABI's define the top bits too.

llvm-svn: 20926
 2005-03-29 19:09:56 +00:00
Chris Lattner
39064a8ca0 there is no point comparing against null pointer. 
llvm-svn: 20925
 2005-03-29 17:44:52 +00:00
Chris Lattner
5ceaf630ab Fix a major problem with global variable initializers. This could cause 
us to have stuff pointing to the null pointer, which makes no sense
(the null ptr is an ssa value, not the null object)

llvm-svn: 20922
 2005-03-29 17:21:53 +00:00
Chris Lattner
3759d20b0f fix a warning in the optimized build 
llvm-svn: 20920
 2005-03-29 15:13:27 +00:00
Chris Lattner
4f9c2cde55 add some more functions, ignore setcc for constraints! 
llvm-svn: 20917
 2005-03-29 06:52:20 +00:00
Chris Lattner
9b3adb88b8 disable this transformation in the one obscure case that really pessimizes 
pointer analysis.

llvm-svn: 20916
 2005-03-29 06:37:47 +00:00
Chris Lattner
003634d3ab there is no reason to run -instcombine -instcombine! 
llvm-svn: 20915
 2005-03-29 06:25:11 +00:00
Chris Lattner
813ef90a12 Handle "known" external calls context sensitively, add support for realloc 
and a couple of other functions that are important.

Handle aggregate undef values for gv initializers

llvm-svn: 20914
 2005-03-29 06:09:07 +00:00
Nate Begeman
62e458272f Implement div, rem, and frameindex 
llvm-svn: 20907
 2005-03-29 00:03:27 +00:00
Nate Begeman
734a61f057 Pattern ISel: fix argument loading for i64s (thanks chris) 
Simple  ISel: fix i64 subtract

llvm-svn: 20903
 2005-03-28 23:08:54 +00:00
Nate Begeman
32d1caae6d Remove fake instruction 'subc' (mnemonic for subfc). 
More pattern isel updates

llvm-svn: 20902
 2005-03-28 22:28:37 +00:00
Chris Lattner
185e7e2c22 implement legalization of build_pair for nate 
llvm-svn: 20901
 2005-03-28 22:03:13 +00:00
Andrew Lenharth
c287cd1e4e First step in adding pcmarker intrinsic. Second step (soon) is adding backend support. 
llvm-svn: 20900
 2005-03-28 20:05:49 +00:00
Nate Begeman
2ab66f55b6 Implement proper loads and zero-extends of all types 
llvm-svn: 20897
 2005-03-28 19:36:43 +00:00
Duraid Madina
7b5f67baf9 Emit .global @function and .global @object entries so the Intel ias 
assembler may be used; identify LLVM output as such.

llvm-svn: 20892
 2005-03-28 15:21:43 +00:00
Chris Lattner
47fcba56f8 Teach andersens that non-escaping memory cannot be mod/ref'd by external fn calls. 
llvm-svn: 20891
 2005-03-28 06:21:17 +00:00
Misha Brukman
b97b449309 Fix grammar 
llvm-svn: 20890
 2005-03-28 04:32:12 +00:00
Chris Lattner
abb512a593 Make anders-aa much more precise by not being completely pessimistic about 
external functions.  Teach it about a few important ones.

llvm-svn: 20889
 2005-03-28 04:03:52 +00:00
Jeff Cohen
1be6e1cb99 Fix VC++ build breakage 
llvm-svn: 20888
 2005-03-28 02:52:28 +00:00
Alkis Evlogimenos
e0e628a401 Rename createPromoteMemoryToRegister() to 
createPromoteMemoryToRegisterPass() to be consistent with other pass
creation functions.

llvm-svn: 20885
 2005-03-28 02:01:12 +00:00
Chris Lattner
691b1987e1 wrap some long lines 
llvm-svn: 20884
 2005-03-27 22:03:46 +00:00
Chris Lattner
6b31704450 remove ... 
llvm-svn: 20883
 2005-03-27 21:57:09 +00:00
Chris Lattner
15741f8877 speed up steens by using spliceFrom, improve its precision by realizing that 
an incomplete node cannot alias a complete node.

llvm-svn: 20882
 2005-03-27 21:56:55 +00:00
Chris Lattner
7f0903e187 teach andersens about undef 
llvm-svn: 20881
 2005-03-27 18:58:23 +00:00
Chris Lattner
de6cc372e3 Don't give up completely, maybe other AA can say something about this. 
llvm-svn: 20873
 2005-03-27 00:02:33 +00:00
Chris Lattner
3a88055932 Factor out percentage printing into its own function. Make two changes to 
the function: print more precision XX.X% instead of XX%, and cast to ULL
before scaling by 100/1000 to avoid wrap around for large numbers of queries
(such as occur for 253.perlbmk and 176.gcc)

llvm-svn: 20872
 2005-03-26 23:56:33 +00:00
Chris Lattner
b84076a278 Cache mapping information for a call site after computing it for a mod/ref 
query.  If the next mod/ref query happens to be for the same call site
(which is extremely likely), use the cache instead of recomputing the
callee/caller mapping.  This makes -aa-eval ***MUCH*** faster with
ds-aa

llvm-svn: 20871
 2005-03-26 23:29:03 +00:00
Chris Lattner
21d25dd835 Remove more long dead code: dsa doesn't provide must alias info 
llvm-svn: 20870
 2005-03-26 22:54:46 +00:00
Chris Lattner
8638fbf4d6 remove some unsafe code that has long been dead 
llvm-svn: 20869
 2005-03-26 22:48:42 +00:00
Chris Lattner
ee96215ded slightly improve mod/ref for DSAA by checking the globals graph for fallback 
llvm-svn: 20868
 2005-03-26 22:47:03 +00:00
Chris Lattner
02275101be Teach steens-aa two things about mod/ref information: 
1. If memory never escapes the program, it cannot be mod/ref'd by external
     functions.
  2. If memory is global never mod/ref'd in the program, it cannot be mod/ref'd
     by any call.

llvm-svn: 20867
 2005-03-26 22:43:20 +00:00
Chris Lattner
bbec058833 Interchange this loop so that we test all pointers against one call site 
before moving on to the next call site.  This will be a more efficient way
to compute the mod/ref set for AA implementations like DSA.

llvm-svn: 20866
 2005-03-26 22:16:44 +00:00
Nate Begeman
6b0fbf811f Fix that pesky floats in integer regs problem by assigning the f32 type to 
the correct register class.  Also remove the loading of float data into int
regs part of varargs; it will need to be implemented differently later.

llvm-svn: 20857
 2005-03-26 08:25:22 +00:00
Nate Begeman
31d175d1e5 Get closer to having varargs working. There's still something strange 
going on with copies between floating point and integer register files
being generated.  Once that is solved, varargs will be done.

llvm-svn: 20856
 2005-03-26 07:46:36 +00:00
Nate Begeman
69742e6ea1 Make 64bit args and float args work correct with calls. Thanks to Chris 
for explaining EXTRACT_ELEMENT to me.

llvm-svn: 20847
 2005-03-26 02:17:46 +00:00
Nate Begeman
e0ab2218d1 Change LowerCallTo to take a boolean isVarArg argument. This is needed 
by the PowerPC backend, and probably others in the future.

llvm-svn: 20843
 2005-03-26 01:30:30 +00:00
Nate Begeman
f821401825 Change interface to LowerCallTo to take a boolean isVarArg argument. 
llvm-svn: 20842
 2005-03-26 01:29:23 +00:00
Nate Begeman
d3b5925b38 Next round of pattern isel changes, mostly dealing with calls. 
llvm-svn: 20841
 2005-03-26 01:28:53 +00:00
Nate Begeman
4106e81966 Correct a documention link 
llvm-svn: 20840
 2005-03-26 01:28:05 +00:00
Chris Lattner
d11e075664 no really, don't double count these nodes either! 
llvm-svn: 20837
 2005-03-25 20:54:45 +00:00
Chris Lattner
81e77226bb Don't count all of the nodes in the SCC once for each function in the SCC. 
llvm-svn: 20836
 2005-03-25 20:37:32 +00:00