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Author SHA1 Message Date
Chris Lattner
a33ef4816d Instead of setting up the CFG edges at selectiondag construction time, set 
them up after the code has been emitted.  This allows targets to select one
mbb as multiple mbb's as needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20937 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 01:10:47 +00:00
Chris Lattner
71df3f8cab don't depend on the cfg being set up yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20936 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 01:10:00 +00:00
Nate Begeman
23afcfb063 Fix BranchCC (it's still dumb), and implement FP select (also dumb) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20935 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 22:48:55 +00:00
Nate Begeman
74747861b9 Implement integer select and i1 sign extend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20934 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 22:24:51 +00:00
Nate Begeman
3316252034 Implement SetCC, fix ZERO_EXTEND_INREG 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20933 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 21:54:38 +00:00
Chris Lattner
175b9635cc import all of the rest of the stubs that dsa uses for direct comparison 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20932 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:36:05 +00:00
Tanya Lattner
5e9f352346 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20931 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:35:10 +00:00
Tanya Lattner
5ec3a63f6d Dependence analyzer that just determines dependences within a loop for loads and stores using alias analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20930 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:33:42 +00:00
Chris Lattner
77b505670c learn about some more functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20929 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:04:24 +00:00
Andrew Lenharth
c05138387a Fix up some types and constants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20928 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 19:24:04 +00:00
Chris Lattner
9342a939eb Fix a problem where we not marking incoming arguments to functions with 
external linkage as incomplete.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20927 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 19:16:59 +00:00
Chris Lattner
f51d3bd676 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20926 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 19:09:56 +00:00
Chris Lattner
cfba7981eb there is no point comparing against null pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20925 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 17:44:52 +00:00
Chris Lattner
76bc5ce5c4 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)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20922 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 17:21:53 +00:00
Chris Lattner
848132d671 fix a warning in the optimized build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20920 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 15:13:27 +00:00
Chris Lattner
4de57fd9e9 add some more functions, ignore setcc for constraints! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20917 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:52:20 +00:00
Chris Lattner
b1515fe522 disable this transformation in the one obscure case that really pessimizes 
pointer analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20916 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:37:47 +00:00
Chris Lattner
0b77be8f0f there is no reason to run -instcombine -instcombine! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20915 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:25:11 +00:00
Chris Lattner
8a44643d61 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20914 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:09:07 +00:00
Nate Begeman
f3d08f31b3 Implement div, rem, and frameindex 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20907 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 00:03:27 +00:00
Nate Begeman
f70b576ccc Pattern ISel: fix argument loading for i64s (thanks chris) 
Simple  ISel: fix i64 subtract


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20903 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 23:08:54 +00:00
Nate Begeman
ca12a2bd91 Remove fake instruction 'subc' (mnemonic for subfc). 
More pattern isel updates


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20902 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 22:28:37 +00:00
Chris Lattner
d4e50bb2e2 implement legalization of build_pair for nate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20901 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 22:03:13 +00:00
Andrew Lenharth
7f4ec3b2e3 First step in adding pcmarker intrinsic. Second step (soon) is adding backend support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20900 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 20:05:49 +00:00
Nate Begeman
9db505ca9d Implement proper loads and zero-extends of all types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20897 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 19:36:43 +00:00
Duraid Madina
ae8bd73634 Emit .global @function and .global @object entries so the Intel ias 
assembler may be used; identify LLVM output as such.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20892 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 15:21:43 +00:00
Chris Lattner
f392c64ec6 Teach andersens that non-escaping memory cannot be mod/ref'd by external fn calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20891 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 06:21:17 +00:00
Misha Brukman
be5e2f4f9b Fix grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20890 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 04:32:12 +00:00
Chris Lattner
c3c9fd0dd6 Make anders-aa much more precise by not being completely pessimistic about 
external functions.  Teach it about a few important ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20889 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 04:03:52 +00:00
Jeff Cohen
e60f69c054 Fix VC++ build breakage 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20888 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 02:52:28 +00:00
Alkis Evlogimenos
ab7ada3ed6 Rename createPromoteMemoryToRegister() to 
createPromoteMemoryToRegisterPass() to be consistent with other pass
creation functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20885 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 02:01:12 +00:00
Chris Lattner
493f6366cb wrap some long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20884 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 22:03:46 +00:00
Chris Lattner
93ab219244 remove ... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20883 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 21:57:09 +00:00
Chris Lattner
40ee8ce28b speed up steens by using spliceFrom, improve its precision by realizing that 
an incomplete node cannot alias a complete node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20882 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 21:56:55 +00:00
Chris Lattner
267a1b02a2 teach andersens about undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20881 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 18:58:23 +00:00
Chris Lattner
5f4c0a88ee Don't give up completely, maybe other AA can say something about this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20873 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 00:02:33 +00:00
Chris Lattner
e70492d0e2 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)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20872 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 23:56:33 +00:00
Chris Lattner
1b9a2aac98 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20871 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 23:29:03 +00:00
Chris Lattner
a7337dc2b9 Remove more long dead code: dsa doesn't provide must alias info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20870 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:54:46 +00:00
Chris Lattner
5a6a9d4f0c remove some unsafe code that has long been dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20869 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:48:42 +00:00
Chris Lattner
bc499de74f slightly improve mod/ref for DSAA by checking the globals graph for fallback 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20868 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:47:03 +00:00
Chris Lattner
b7523418b0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20867 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:43:20 +00:00
Chris Lattner
0772e78789 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20866 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 22:16:44 +00:00
Nate Begeman
7532e2f555 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20857 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 08:25:22 +00:00
Nate Begeman
f7e4338035 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20856 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 07:46:36 +00:00
Nate Begeman
f26226155e Make 64bit args and float args work correct with calls. Thanks to Chris 
for explaining EXTRACT_ELEMENT to me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20847 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 02:17:46 +00:00
Nate Begeman
5ebc3dbc1c Change LowerCallTo to take a boolean isVarArg argument. This is needed 
by the PowerPC backend, and probably others in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20843 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 01:30:30 +00:00
Nate Begeman
8e21e71b24 Change interface to LowerCallTo to take a boolean isVarArg argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20842 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 01:29:23 +00:00
Nate Begeman
307e7443b8 Next round of pattern isel changes, mostly dealing with calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20841 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 01:28:53 +00:00
Nate Begeman
c13a7f0eb3 Correct a documention link 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20840 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-26 01:28:05 +00:00