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Author SHA1 Message Date
Chris Lattner
9b53c7c797 Fix a major pessimization in the instcombiner. If an allocation instruction 
is only used by a cast, and the casted type is the same size as the original
allocation, it would eliminate the cast by folding it into the allocation.

Unfortunately, it was placing the new allocation instruction right before
the cast, which could pull (for example) alloca instructions into the body
of a function.  This turns statically allocatable allocas into expensive
dynamically allocated allocas, which is bad bad bad.

This fixes the problem by placing the new allocation instruction at the same
place the old one was, duh. :)

llvm-svn: 13289
 2004-04-30 04:37:52 +00:00
Brian Gaeke
af5e2f1ea5 Add machine-CFG graph traits specializations. 
llvm-svn: 13288
 2004-04-29 17:43:55 +00:00
Misha Brukman
f5e334783a Wrapped code and comments at 80 cols; doxygenified some comments. 
llvm-svn: 13264
 2004-04-29 04:05:30 +00:00
Misha Brukman
9c4c92c40c Reorder #includes as per style guide. 
llvm-svn: 13263
 2004-04-29 04:04:47 +00:00
Misha Brukman
9f6428ea0e Added `zeroinitializer' keyword. 
llvm-svn: 13253
 2004-04-28 19:36:08 +00:00
Misha Brukman
5f5f6ca775 class AssemblyWriter: 
* Make contained ostream pointer, not reference
* Allow setting of that ostream via setStream()

class CachedWriter:
* setStream() in turn calls setStream() on the AssemblyWriter

llvm-svn: 13247
 2004-04-28 19:24:28 +00:00
Misha Brukman
3673c653b5 * Make contained ostream not public. 
* Remove various print methods that called the Value* method, just have one that
  all subclasses of Value will use anyway.
* Remove template for printing constant references
* Add methods to print char* and strings
* setStream now sets the stream on the contained AssemblyWriter

llvm-svn: 13246
 2004-04-28 19:22:58 +00:00
Misha Brukman
f8b734296e Send text and numbers directly to CachedWriter's contained ostream. 
llvm-svn: 13243
 2004-04-28 18:52:43 +00:00
Misha Brukman
fad1a41fce Squelch compile-time warning (profile build). 
llvm-svn: 13228
 2004-04-28 15:32:09 +00:00
Misha Brukman
d408a510b8 * Add ability to print out type as symbolic 
* Add Module accessor to AssemblyWriter

llvm-svn: 13227
 2004-04-28 15:31:21 +00:00
Misha Brukman
dd23f36ed6 * Add ability to get and set the output stream 
* New feature: outputting a Type* as symbolic, controlled via the stream
  similarly to sending std::hex to change number format

llvm-svn: 13226
 2004-04-28 15:30:33 +00:00
Brian Gaeke
8e3668faca Add pred./succ. list size methods. 
llvm-svn: 13214
 2004-04-28 04:46:35 +00:00
Brian Gaeke
bfb4fe5109 Make RequiresFPRegKill() take a MachineBasicBlock arg. 
In InsertFPRegKills(), just check the MachineBasicBlock for successors
instead of its corresponding BasicBlock.

llvm-svn: 13213
 2004-04-28 04:45:55 +00:00
Brian Gaeke
74ed24c9de In InsertFPRegKills(), use the machine-CFG itself rather than the 
LLVM CFG when trying to find the successors of BB.

llvm-svn: 13212
 2004-04-28 04:34:16 +00:00
Brian Gaeke
6c03805717 Update the machine-CFG edges whenever we see a branch. 
llvm-svn: 13211
 2004-04-28 04:19:37 +00:00
Brian Gaeke
369fa0ed81 Move private methods to end of class decl at Chris's request 
llvm-svn: 13210
 2004-04-28 04:15:06 +00:00
Brian Gaeke
d63179c70b Fix thinkos that Chris caught for me. 
Make pred mutators private.

llvm-svn: 13209
 2004-04-28 03:59:48 +00:00
Brian Gaeke
213538a039 Add machine-code CFG support: MachineBasicBlocks may now have their own 
predecessors and successors

llvm-svn: 13208
 2004-04-28 02:16:33 +00:00
Brian Gaeke
7ce5ef244a Integrate the rest of my random sparcv9 scribblings into this file 
llvm-svn: 13204
 2004-04-27 22:04:03 +00:00
Chris Lattner
cc929742a1 Fix warning building in optimized mode 
llvm-svn: 13190
 2004-04-27 18:24:38 +00:00
Chris Lattner
adacba2678 Fix warning 
llvm-svn: 13189
 2004-04-27 18:21:56 +00:00
Chris Lattner
02c65b5395 Changes to fix up the inst_iterator to pass to boost iterator checks. This 
patch was graciously contributed by Vladimir Prus.

llvm-svn: 13185
 2004-04-27 15:13:33 +00:00
Brian Gaeke
9679a3b445 Because I like being able to instantiate the cfgprinter from external projects, 
this header file is born.

llvm-svn: 13176
 2004-04-26 16:27:53 +00:00
Brian Gaeke
217515996f Add functions that return instances of these printer passes 
llvm-svn: 13175
 2004-04-26 16:27:08 +00:00
Brian Gaeke
1aada2b128 Fix a typo in a comment. 
llvm-svn: 13174
 2004-04-26 16:26:21 +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
Chris Lattner
312eb88522 Add a new testcase for X/-1, fix bug that prevented tests from running right 
llvm-svn: 13171
 2004-04-26 14:01:47 +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
ebb3422358 Standardize header comments of top-level Makefiles. 
llvm-svn: 13143
 2004-04-24 00:10:56 +00:00
Misha Brukman
d41853bbe2 Aggregating function arguments is now an option. Default is `no', as before. 
llvm-svn: 13142
 2004-04-23 23:54:34 +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
Chris Lattner
b2e1576e72 Remove the SCEV::expandCodeFor method, add a new SCEVVisitor class. 
llvm-svn: 13133
 2004-04-23 21:28:25 +00:00
Chris Lattner
7902d8fd02 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
071e2bce64 Merged this file into the SparcV9 target. 
llvm-svn: 13128
 2004-04-23 18:17:03 +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
80db51134d 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
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