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Author SHA1 Message Date
Chris Lattner
83a2e6e4a1 Instcombine X/-1 --> 0-X 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13172 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-26 14:01:59 +00:00
Chris Lattner
db05858ba1 Add a new testcase for X/-1, fix bug that prevented tests from running right 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13171 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-26 14:01:47 +00:00
Brian Gaeke
3ca4fccac5 Fix file header comments and include guards -- many files have been moved or 
renamed since they were last spiffed up, or they just never had proper comments
in the first place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13148 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-25 07:04:49 +00:00
Brian Gaeke
27beae85a0 Add a getRegisterInfo() accessor just like on the X86 target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13147 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-25 06:32:28 +00:00
Brian Gaeke
c991586b92 Regularize file header comment and include guard. 
Include SparcV9RegisterInfo.h.
Add a getRegisterInfo() accessor and SparcV9RegisterInfo instance, just like
on the X86 target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13146 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-25 06:32:16 +00:00
Brian Gaeke
2363b4ef5b Add MRegisterInfo subclass for the SparcV9 target (containing only stub 
functions for now). This automatically turns on the printing of machine
registers using their own real names, instead of goofy things like %mreg(42),
and allows us to migrate code incrementally to the new interface as we see fit.

The register file description it uses is hand-written, so that the register
numbers will match the ones that the SparcV9 target already uses.
Perhaps someday we'll tablegen it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13145 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-25 06:32:05 +00:00
Misha Brukman
6d5ab866fc Standardize header comments of top-level Makefiles. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13143 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-24 00:10:56 +00:00
Misha Brukman
de41aab1f7 Aggregating function arguments is now an option. Default is `no', as before. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13142 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 23:54:34 +00:00
Misha Brukman
22108fac63 * Allow aggregating extracted function arguments (controlled by flag) 
* Commandline option (for now) controls that flag that is passed in


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13141 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 23:54:17 +00:00
Brian Gaeke
dd6d822fa6 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13136 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 21:45:02 +00:00
Chris Lattner
4a7553e2da Move the scev expansion code into this pass, where it belongs. There is 
still room for cleanup, but at least the code modification is out of the
analysis now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13135 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 21:29:48 +00:00
Chris Lattner
b06432c276 Eliminate all of the SCEV Expansion code which is really part of the 
IndVars pass, not part of SCEV *analysis*.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13134 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 21:29:03 +00:00
Chris Lattner
2cdf0a7a32 Remove the SCEV::expandCodeFor method, add a new SCEVVisitor class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13133 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 21:28:25 +00:00
Chris Lattner
f4789e6d04 Teach bugpoint to be a little bit smarter and avoid repeating work 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13132 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 20:36:51 +00:00
Brian Gaeke
a7e405c95d Merged this file into the SparcV9 target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13128 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 18:17:03 +00:00
Brian Gaeke
18f9f66369 Merge TargetRegInfo.h into SparcV9RegInfo.h, which is its only subclass. 
This prepares us to be able to de-virtualize and de-abstract it, and
take the register allocator bits out and move them into the register allocator
proper...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13127 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 18:15:48 +00:00
Brian Gaeke
3b2e5e619e Include SparcV9RegInfo.h instead of TargetRegInfo.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13126 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 18:15:47 +00:00
Brian Gaeke
35450d2aaa Include SparcV9RegInfo.h instead of TargetRegInfo.h. This serves as a bit of 
documentation that this module needs to be made independent of the
register file description of the current target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13125 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 18:15:46 +00:00
Brian Gaeke
4d529bc07b Get rid of the old byte-at-a-time emission code used when the Sparc JIT was 
being tested on X86, as per Chris's request.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 18:10:38 +00:00
Brian Gaeke
b440dea57b Go back to the interpreter main loop after performing intrinsic lowering, 
because 1) the first instruction might not be a call site, and
2) CS and SF.Caller were not getting set to point to the new call site
anyway (resulting in a crash on e.g. call %llvm.memset).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13122 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 18:05:28 +00:00
Brian Gaeke
6893eadc95 mmap of a zero length file returns null on some platforms, so hack around it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13121 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 17:38:17 +00:00
Brian Gaeke
b61fc83ecb Use emitWordAt() to emit forward-branch fixups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13120 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 17:11:16 +00:00
Brian Gaeke
62c6f879ae Emit SPARC machine code a word at a time instead of a byte at a time. 
Use emitWordAt() to emit forward-branch fixups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13119 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 17:11:15 +00:00
Brian Gaeke
aea1b58f1e Implement emitWordAt() for the JIT emitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13118 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 17:11:14 +00:00
Brian Gaeke
da8246bb71 Implement emitWordAt() for the debug emitter and the file printer emitter. (I 
am not so sure about the file printer emitter, but the debug emitter change
should be harmless.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13117 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 17:11:13 +00:00
Brian Gaeke
fd1bb8b974 Add emitWordAt() - a quick and dirty interface that the machine-dependent 
emitters can use to emit "relocations".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13116 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-23 17:11:12 +00:00
Misha Brukman
ca718e41cf Add command-line option to select whether to isolate or delete function from 
module. Default is `isolate' as before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13113 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 23:07:39 +00:00
Misha Brukman
7d248397a7 Clarify the logic: the flag is renamed to `deleteFn' to signify it will delete 
the function instead of isolating it. This also means the condition is reversed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13112 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 23:00:51 +00:00
Misha Brukman
79906c9825 Add a flag to choose between isolating a function or deleting the function from 
the Module. The default behavior keeps functionality as before: the chosen
function is the one that remains.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13111 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 22:52:22 +00:00
Misha Brukman
127a3e092b Add a boolean flag to delete this function from module, leaving the rest behind. 
Useful in manual debugging when bugpoint isn't quite up to snuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13110 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 22:51:37 +00:00
Misha Brukman
123f8fec94 Add a space before result for readability on the command line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13109 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 20:02:09 +00:00
Chris Lattner
b4782d13d1 Disable a previous patch that was causing indvars to loop infinitely :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13108 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 15:12:36 +00:00
Chris Lattner
7d221c53e5 Add an ugly cast 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13107 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 15:00:36 +00:00
Chris Lattner
fcb81f5f4c Fix an extremely serious thinko I made in revision 1.60 of this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13106 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 14:59:40 +00:00
Chris Lattner
e1beb8f59d Add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13105 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-22 14:56:51 +00:00
Chris Lattner
1363e85df7 Implement a todo, rewriting all possible scev expressions inside of the 
loop.  This eliminates the extra add from the previous case, but it's
not clear that this will be a performance win overall.  Tommorows test
results will tell. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13103 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 23:36:08 +00:00
Chris Lattner
4e5f03602c This code really wants to iterate over the OPERANDS of an instruction, not 
over its USES.  If it's dead it doesn't have any uses!  :)

Thanks to the fabulous and mysterious Bill Wendling for pointing this out.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13102 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 22:29:37 +00:00
Chris Lattner
5d461d20ae Implement a fixme. The helps loops that have induction variables of different 
types in them.  Instead of creating an induction variable for all types, it
creates a single induction variable and casts to the other sizes.  This generates
this code:

no_exit:                ; preds = %entry, %no_exit
        %indvar = phi uint [ %indvar.next, %no_exit ], [ 0, %entry ]            ; <uint> [#uses=4]
***     %j.0.0 = cast uint %indvar to short             ; <short> [#uses=1]
        %indvar = cast uint %indvar to int              ; <int> [#uses=1]
        %tmp.7 = getelementptr short* %P, uint %indvar          ; <short*> [#uses=1]
        store short %j.0.0, short* %tmp.7
        %inc.0 = add int %indvar, 1             ; <int> [#uses=2]
        %tmp.2 = setlt int %inc.0, %N           ; <bool> [#uses=1]
        %indvar.next = add uint %indvar, 1              ; <uint> [#uses=1]
        br bool %tmp.2, label %no_exit, label %loopexit

instead of:

no_exit:                ; preds = %entry, %no_exit
        %indvar = phi ushort [ %indvar.next, %no_exit ], [ 0, %entry ]          ; <ushort> [#uses=2]
***     %indvar = phi uint [ %indvar.next, %no_exit ], [ 0, %entry ]            ; <uint> [#uses=3]
        %indvar = cast uint %indvar to int              ; <int> [#uses=1]
        %indvar = cast ushort %indvar to short          ; <short> [#uses=1]
        %tmp.7 = getelementptr short* %P, uint %indvar          ; <short*> [#uses=1]
        store short %indvar, short* %tmp.7
        %inc.0 = add int %indvar, 1             ; <int> [#uses=2]
        %tmp.2 = setlt int %inc.0, %N           ; <bool> [#uses=1]
        %indvar.next = add uint %indvar, 1
***     %indvar.next = add ushort %indvar, 1
        br bool %tmp.2, label %no_exit, label %loopexit

This is an improvement in register pressure, but probably doesn't happen that
often.

The more important fix will be to get rid of the redundant add.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13101 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 22:22:01 +00:00
Chris Lattner
3e1358a9fa Fix an incredibly nasty iterator invalidation problem. I am too spoiled by ilists :) 
Eventually it would be nice if CallGraph maintained an ilist of CallGraphNode's instead
of a vector of pointers to them, but today is not that day.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13100 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 20:44:33 +00:00
Chris Lattner
6df29c6453 bug fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13099 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 18:52:06 +00:00
Chris Lattner
c398613a4d new testcase for PR326 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13098 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 18:49:35 +00:00
Misha Brukman
8c194eaa05 Add doxygenified comments to functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13097 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 18:36:43 +00:00
Misha Brukman
af76cfb0fb I'm allergic to the word `stuff'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13096 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 18:27:56 +00:00
Brian Gaeke
6896a7dd43 Make SparcV9RegInfo::getRegType() return the right answer for registers 
of IntCC, FloatCC, and Special types.

Make SparcV9RegInfo::getRegClassIDOfRegType() return the right answer
if you ask for the class corresponding to SpecialRegType.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13095 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 17:53:58 +00:00
Alkis Evlogimenos
09233fb86e Include cerrno (gcc-3.4 fix) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13091 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 16:11:40 +00:00
Alkis Evlogimenos
afa9235f07 Declare iterator as public since it is defined as such (gcc-3.4 fix) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13090 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 16:10:40 +00:00
Chris Lattner
107fb18d89 Fix typeo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13089 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-21 14:23:18 +00:00
Chris Lattner
68d57e7ae8 REALLY fix PR324: don't delete linkonce functions until after the SCC traversal 
is done, which avoids invalidating iterators in the SCC traversal routines


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13088 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 22:06:53 +00:00
Chris Lattner
72035995d5 Pass the callgraph not the module 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13087 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 21:52:26 +00:00
Chris Lattner
78637fe9d6 Allow getting the module from a call graph 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13086 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 21:52:12 +00:00