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11689 Commits

Author SHA1 Message Date
Chris Lattner 05ef97f994 Eliminate all of the SCEV Expansion code which is really part of the 
IndVars pass, not part of SCEV *analysis*.

llvm-svn: 13134
 2004-04-23 21:29:03 +00:00
Chris Lattner 0eab307e3c Remove the SCEV::expandCodeFor method, add a new SCEVVisitor class. 
llvm-svn: 13133
 2004-04-23 21:28:25 +00:00
Chris Lattner 02cea4afd3 Teach bugpoint to be a little bit smarter and avoid repeating work 
llvm-svn: 13132
 2004-04-23 20:36:51 +00:00
Brian Gaeke 99e3e94012 Merged this file into the SparcV9 target. 
llvm-svn: 13128
 2004-04-23 18:17:03 +00:00
Brian Gaeke 0b65f8f582 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...

llvm-svn: 13127
 2004-04-23 18:15:48 +00:00
Brian Gaeke 71509a98c5 Include SparcV9RegInfo.h instead of TargetRegInfo.h. 
llvm-svn: 13126
 2004-04-23 18:15:47 +00:00
Brian Gaeke a411e07db0 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.

llvm-svn: 13125
 2004-04-23 18:15:46 +00:00
Brian Gaeke fbd43e43a7 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.

llvm-svn: 13124
 2004-04-23 18:10:38 +00:00
Brian Gaeke ad373c8576 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).

llvm-svn: 13122
 2004-04-23 18:05:28 +00:00
Brian Gaeke 11550c1deb mmap of a zero length file returns null on some platforms, so hack around it. 
llvm-svn: 13121
 2004-04-23 17:38:17 +00:00
Brian Gaeke 6e102a7edd Use emitWordAt() to emit forward-branch fixups. 
llvm-svn: 13120
 2004-04-23 17:11:16 +00:00
Brian Gaeke fe277c2809 Emit SPARC machine code a word at a time instead of a byte at a time. 
Use emitWordAt() to emit forward-branch fixups.

llvm-svn: 13119
 2004-04-23 17:11:15 +00:00
Brian Gaeke 0c4fb283f3 Implement emitWordAt() for the JIT emitter. 
llvm-svn: 13118
 2004-04-23 17:11:14 +00:00
Brian Gaeke 4aaa9c603a 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.)

llvm-svn: 13117
 2004-04-23 17:11:13 +00:00
Brian Gaeke 1ed0cdbd04 Add emitWordAt() - a quick and dirty interface that the machine-dependent 
emitters can use to emit "relocations".

llvm-svn: 13116
 2004-04-23 17:11:12 +00:00
Misha Brukman 2ccac826e4 Add command-line option to select whether to isolate or delete function from 
module. Default is `isolate' as before.

llvm-svn: 13113
 2004-04-22 23:07:39 +00:00
Misha Brukman 98aa516a9c 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.

llvm-svn: 13112
 2004-04-22 23:00:51 +00:00
Misha Brukman e0682426f0 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.

llvm-svn: 13111
 2004-04-22 22:52:22 +00:00
Misha Brukman 2de9ce4f51 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.

llvm-svn: 13110
 2004-04-22 22:51:37 +00:00
Misha Brukman 324e9e06d8 Add a space before result for readability on the command line. 
llvm-svn: 13109
 2004-04-22 20:02:09 +00:00
Chris Lattner c27302c79f Disable a previous patch that was causing indvars to loop infinitely :( 
llvm-svn: 13108
 2004-04-22 15:12:36 +00:00
Chris Lattner 8f02e9c5f7 Add an ugly cast 
llvm-svn: 13107
 2004-04-22 15:00:36 +00:00
Chris Lattner c1a682dda0 Fix an extremely serious thinko I made in revision 1.60 of this file. 
llvm-svn: 13106
 2004-04-22 14:59:40 +00:00
Chris Lattner 334bee87f4 Add a method 
llvm-svn: 13105
 2004-04-22 14:56:51 +00:00
Chris Lattner af532f27e7 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. :)

llvm-svn: 13103
 2004-04-21 23:36:08 +00:00
Chris Lattner fb9a299f68 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.  :)

llvm-svn: 13102
 2004-04-21 22:29:37 +00:00
Chris Lattner dc7cc35088 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.

llvm-svn: 13101
 2004-04-21 22:22:01 +00:00
Chris Lattner be8bb804c5 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.

llvm-svn: 13100
 2004-04-21 20:44:33 +00:00
Chris Lattner 15572abd14 bug fixed 
llvm-svn: 13099
 2004-04-21 18:52:06 +00:00
Chris Lattner ee80c45d46 new testcase for PR326 
llvm-svn: 13098
 2004-04-21 18:49:35 +00:00
Misha Brukman 0784a601c2 Add doxygenified comments to functions. 
llvm-svn: 13097
 2004-04-21 18:36:43 +00:00
Misha Brukman 3bcead7201 I'm allergic to the word `stuff'. 
llvm-svn: 13096
 2004-04-21 18:27:56 +00:00
Brian Gaeke 376ac1bed5 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.

llvm-svn: 13095
 2004-04-21 17:53:58 +00:00
Alkis Evlogimenos f68f40ea42 Include cerrno (gcc-3.4 fix) 
llvm-svn: 13091
 2004-04-21 16:11:40 +00:00
Alkis Evlogimenos 07f7574ba3 Declare iterator as public since it is defined as such (gcc-3.4 fix) 
llvm-svn: 13090
 2004-04-21 16:10:40 +00:00
Chris Lattner a9691fe70d Fix typeo 
llvm-svn: 13089
 2004-04-21 14:23:18 +00:00
Chris Lattner c87784f1fc REALLY fix PR324: don't delete linkonce functions until after the SCC traversal 
is done, which avoids invalidating iterators in the SCC traversal routines

llvm-svn: 13088
 2004-04-20 22:06:53 +00:00
Chris Lattner 99504890b7 Pass the callgraph not the module 
llvm-svn: 13087
 2004-04-20 21:52:26 +00:00
Chris Lattner a45086a45e Allow getting the module from a call graph 
llvm-svn: 13086
 2004-04-20 21:52:12 +00:00
Chris Lattner 0a985ac82c Change it to take a callgraph, from which we can get a module 
llvm-svn: 13085
 2004-04-20 21:52:07 +00:00
Chris Lattner 8d0838130c Add the ability for SCC passes to initialize and finalize themselves 
llvm-svn: 13084
 2004-04-20 21:30:06 +00:00
Chris Lattner c1aa21f5a7 Fix PR325 
llvm-svn: 13081
 2004-04-20 20:26:03 +00:00
Chris Lattner 514934051a Fix PR324 and testcase: Inline/2004-04-20-InlineLinkOnce.llx 
llvm-svn: 13080
 2004-04-20 20:20:59 +00:00
Chris Lattner 40123bff5b New testcase, distilled from PR324 
llvm-svn: 13079
 2004-04-20 20:15:01 +00:00
Brian Gaeke a2f66db6c4 Make it legal to ask for the type of a specialreg 
llvm-svn: 13078
 2004-04-20 20:12:57 +00:00
Brian Gaeke 86a6c75a7e Add some PRs which were fixed, but not previously mentioned in the rel. notes. 
llvm-svn: 13077
 2004-04-20 18:18:46 +00:00
Chris Lattner 2b2d7a99be Add support for the select instruction 
llvm-svn: 13076
 2004-04-20 16:43:21 +00:00
Brian Gaeke 6c272a93bb Make it legal to request a load or store of %fsr. 
llvm-svn: 13073
 2004-04-19 19:12:12 +00:00
Brian Gaeke 627abf14bb Fix typo. 
llvm-svn: 13072
 2004-04-19 19:09:24 +00:00
Brian Gaeke 755651df27 Regularize include guards and remove some excess whitespace. 
llvm-svn: 13071
 2004-04-19 18:53:44 +00:00