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217515996f
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6149 Commits

Author SHA1 Message Date
Brian Gaeke
217515996f Add functions that return instances of these printer passes 
llvm-svn: 13175
 2004-04-26 16:27:08 +00:00
Chris Lattner
430a61e786 If an object is not in the scalar map then it must be a global from another 
graph.

llvm-svn: 13173
 2004-04-26 14:44:08 +00:00
Chris Lattner
5bad19bde7 Instcombine X/-1 --> 0-X 
llvm-svn: 13172
 2004-04-26 14:01:59 +00:00
Brian Gaeke
1e049bdc77 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.

llvm-svn: 13148
 2004-04-25 07:04:49 +00:00
Brian Gaeke
c3857275f9 Add a getRegisterInfo() accessor just like on the X86 target. 
llvm-svn: 13147
 2004-04-25 06:32:28 +00:00
Brian Gaeke
6e21a0858c Regularize file header comment and include guard. 
Include SparcV9RegisterInfo.h.
Add a getRegisterInfo() accessor and SparcV9RegisterInfo instance, just like
on the X86 target.

llvm-svn: 13146
 2004-04-25 06:32:16 +00:00
Brian Gaeke
a36743c473 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.

llvm-svn: 13145
 2004-04-25 06:32:05 +00:00
Misha Brukman
144b5572e1 * Allow aggregating extracted function arguments (controlled by flag) 
* Commandline option (for now) controls that flag that is passed in

llvm-svn: 13141
 2004-04-23 23:54:17 +00:00
Brian Gaeke
6ed3b116bc Fix a typo. 
llvm-svn: 13136
 2004-04-23 21:45:02 +00:00
Chris Lattner
b72fa5f541 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.

llvm-svn: 13135
 2004-04-23 21:29:48 +00:00
Chris Lattner
f4eb9eb0f2 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
Brian Gaeke
7fba37bb96 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
40c7e110a5 Include SparcV9RegInfo.h instead of TargetRegInfo.h. 
llvm-svn: 13126
 2004-04-23 18:15:47 +00:00
Brian Gaeke
1b07a2282a 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
07344c1367 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
96889991bb 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
0db103b4b3 Use emitWordAt() to emit forward-branch fixups. 
llvm-svn: 13120
 2004-04-23 17:11:16 +00:00
Brian Gaeke
255d0d9b26 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
3cde72d6e2 Implement emitWordAt() for the JIT emitter. 
llvm-svn: 13118
 2004-04-23 17:11:14 +00:00
Brian Gaeke
bc25b3b28a 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
Misha Brukman
1dc8e19185 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
ddace6ecbe 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
Chris Lattner
6716bcd0cc Disable a previous patch that was causing indvars to loop infinitely :( 
llvm-svn: 13108
 2004-04-22 15:12:36 +00:00
Chris Lattner
507ba1c3c3 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
d1906e2ace 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
96752d27f4 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
a3e2004609 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
7d02bae5d8 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
Misha Brukman
7d2413f9ec I'm allergic to the word `stuff'. 
llvm-svn: 13096
 2004-04-21 18:27:56 +00:00
Brian Gaeke
51b16fc65a 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
904f4f9a21 Include cerrno (gcc-3.4 fix) 
llvm-svn: 13091
 2004-04-21 16:11:40 +00:00
Chris Lattner
ade6ddc694 Fix typeo 
llvm-svn: 13089
 2004-04-21 14:23:18 +00:00
Chris Lattner
15eb3c1f39 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
e340657a23 Pass the callgraph not the module 
llvm-svn: 13087
 2004-04-20 21:52:26 +00:00
Chris Lattner
c3714a870c Add the ability for SCC passes to initialize and finalize themselves 
llvm-svn: 13084
 2004-04-20 21:30:06 +00:00
Chris Lattner
602146eea1 Fix PR325 
llvm-svn: 13081
 2004-04-20 20:26:03 +00:00
Chris Lattner
5a1e3f099f Fix PR324 and testcase: Inline/2004-04-20-InlineLinkOnce.llx 
llvm-svn: 13080
 2004-04-20 20:20:59 +00:00
Brian Gaeke
3727c760ed Make it legal to ask for the type of a specialreg 
llvm-svn: 13078
 2004-04-20 20:12:57 +00:00
Chris Lattner
8b841e0e35 Add support for the select instruction 
llvm-svn: 13076
 2004-04-20 16:43:21 +00:00
Brian Gaeke
047739f8d8 Make it legal to request a load or store of %fsr. 
llvm-svn: 13073
 2004-04-19 19:12:12 +00:00
Brian Gaeke
3dfe9f19ea Regularize include guards and remove some excess whitespace. 
llvm-svn: 13071
 2004-04-19 18:53:44 +00:00
Brian Gaeke
d7fa9142a3 Tighten up SparcV9FloatCCRegClass::getRegName()'s assertion - if you ask it for 
the name of %fsr (as the comment in SparcV9RegClassInfo.h used to suggest)
you would walk off the end of the FloatCCRegName array.

llvm-svn: 13070
 2004-04-19 18:53:43 +00:00
Brian Gaeke
5bcbc23fc1 Regularize include guards, remove some excess whitespace and fix some comments. 
Remove the extra %fsr register from SparcV9FloatCCRegClass.

llvm-svn: 13069
 2004-04-19 18:53:42 +00:00
Chris Lattner
29f69938e7 Initial checkin of a simple loop unswitching pass. It still needs work, 
but it's a start, and seems to do it's basic job.

llvm-svn: 13068
 2004-04-19 18:07:02 +00:00
Chris Lattner
710a51d72b It's not just a printer, it's actually an analysis too 
llvm-svn: 13064
 2004-04-19 03:42:32 +00:00
Chris Lattner
69d4611250 Remove code to update loop depths 
llvm-svn: 13058
 2004-04-19 03:02:09 +00:00
Chris Lattner
1849aa8b1f Add #include 
llvm-svn: 13057
 2004-04-19 03:01:23 +00:00
Chris Lattner
ab6502f058 Move isLoopInvariant to the Loop class 
llvm-svn: 13051
 2004-04-18 22:46:08 +00:00
Chris Lattner
509116ec78 Add new method 
llvm-svn: 13050
 2004-04-18 22:45:27 +00:00
Chris Lattner
5a0ed18724 Correct rewriting of exit blocks after my last patch 
llvm-svn: 13048
 2004-04-18 22:27:10 +00:00