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Author SHA1 Message Date
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
Chris Lattner
25942e9f5c Change it to take a callgraph, from which we can get a module 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13085 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 21:52:07 +00:00
Chris Lattner
a10df50282 Add the ability for SCC passes to initialize and finalize themselves 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13084 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 21:30:06 +00:00
Chris Lattner
c99acc3709 Fix PR325 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13081 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 20:26:03 +00:00
Chris Lattner
5ad2b1d544 Fix PR324 and testcase: Inline/2004-04-20-InlineLinkOnce.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13080 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 20:20:59 +00:00
Chris Lattner
7be1e0b478 New testcase, distilled from PR324 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13079 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 20:15:01 +00:00
Brian Gaeke
3f083d5de6 Make it legal to ask for the type of a specialreg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13078 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 20:12:57 +00:00
Brian Gaeke
21a710a52e Add some PRs which were fixed, but not previously mentioned in the rel. notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13077 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 18:18:46 +00:00
Chris Lattner
759d34ffb7 Add support for the select instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13076 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-20 16:43:21 +00:00
Brian Gaeke
0eb61037f7 Make it legal to request a load or store of %fsr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13073 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 19:12:12 +00:00
Brian Gaeke
9a459abed2 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13072 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 19:09:24 +00:00
Brian Gaeke
94178e9fca Regularize include guards and remove some excess whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13071 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 18:53:44 +00:00
Brian Gaeke
03b562aecb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13070 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 18:53:43 +00:00
Brian Gaeke
854db8a29a Regularize include guards, remove some excess whitespace and fix some comments. 
Remove the extra %fsr register from SparcV9FloatCCRegClass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13069 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 18:53:42 +00:00
Chris Lattner
18f16094c2 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13068 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 18:07:02 +00:00
Chris Lattner
74332be31e New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13067 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 18:06:34 +00:00
Chris Lattner
8277567dc6 Add accessor for a Loop Unswitching pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13066 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 06:28:37 +00:00
Chris Lattner
06ac2bef15 Eliminate a poorly conceived method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13065 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 06:26:46 +00:00
Chris Lattner
45a1cf87d4 It's not just a printer, it's actually an analysis too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13064 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 03:42:32 +00:00
Misha Brukman
de4803d0af As per Chris, greatly simplify handling of external functions by using the 
wrapper idea uniformly: we can use Value::replaceAllUsesWith() instead of
special-casing by class of user.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13063 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 03:36:47 +00:00
Misha Brukman
f6f7ec1ee2 * Remove note about "UNSUPPORTED: " feature that just became supported 
* Fix usage of <p> tag and some grammar


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13062 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-04-19 03:28:39 +00:00