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Author SHA1 Message Date
Misha Brukman
0fe1f5d880 Add PowerPCBranchSelector to discover which are `long' branches. 
Contributed by Nate Begeman.

llvm-svn: 15280
 2004-07-27 18:33:06 +00:00
Brian Gaeke
fefef027f4 TargetInstrInfo::getNOPOpCode() has been replaced by a reference to V9::NOP. 
llvm-svn: 15279
 2004-07-27 17:43:24 +00:00
Brian Gaeke
c9b9016d72 Convert many of the virtual TargetInstrInfo methods used as helper 
functions in SparcV9InstrSelection and SparcV9PreSelection into regular
old global functions.  As it happens, none of them really have anything
to do with TargetInstrInfo.

llvm-svn: 15278
 2004-07-27 17:43:23 +00:00
Brian Gaeke
a71776e676 As it happens, none of these TargetInstrInfo methods which are only 
used in the SparcV9 backend really have anything to do with
TargetInstrInfo, so we're converting them into regular old global
functions and moving their declarations to SparcV9InstrSelectionSupport.h.
(They're mostly used as helper functions for SparcV9InstrSelection.)

llvm-svn: 15277
 2004-07-27 17:43:22 +00:00
Brian Gaeke
45adb41f46 Make the create...() functions for some of these passes return a FunctionPass *. 
llvm-svn: 15276
 2004-07-27 17:43:21 +00:00
Misha Brukman
c22bbdd36d Fixed saving/restoring LR unconditionally, only done as necessary. 
llvm-svn: 15275
 2004-07-27 17:17:48 +00:00
Misha Brukman
adb86dba29 Save and restore LR just like any other register and ONLY if we actually modify 
it (due to calls or globals access).  We now compile `void empty(){}' to `blr'.

llvm-svn: 15274
 2004-07-27 17:17:18 +00:00
Misha Brukman
6fec7336fe LR is a 32-bit int reg 
llvm-svn: 15273
 2004-07-27 17:15:32 +00:00
Misha Brukman
93b0ea58a2 MovePCtoLR (which is `bl' in disguise) modifies LR implicitly 
llvm-svn: 15272
 2004-07-27 17:15:05 +00:00
Misha Brukman
4be6841bc0 Register LR is callee-saved 
llvm-svn: 15271
 2004-07-27 17:14:34 +00:00
Misha Brukman
a3ac216fce Add IMPLICIT_DEF of LR for branch-and-link instrs (calls and global accesses) 
llvm-svn: 15270
 2004-07-27 17:13:58 +00:00
Chris Lattner
5a6ff22b3c Ugh, the upgrade of zion brought in GCC 3.3.2, our arch nemesis. 
llvm-svn: 15269
 2004-07-27 08:29:06 +00:00
Chris Lattner
cac8edbc32 Run DSE at link-time, and turn on an IP alias analysis by default in gccld! 
The -disable-globalsmodref is temporary and will be removed eventually.

llvm-svn: 15268
 2004-07-27 08:13:15 +00:00
Chris Lattner
81f96c5a79 nuke pointless -debug output 
llvm-svn: 15267
 2004-07-27 08:03:18 +00:00
Chris Lattner
1e5a9fdf27 New functionality 
llvm-svn: 15266
 2004-07-27 07:50:07 +00:00
Chris Lattner
cab922906b Document new syntax 
llvm-svn: 15265
 2004-07-27 07:49:39 +00:00
Chris Lattner
6a1dd59421 Fix conservative assumption, which was quite broken. Also, notice that 
functions known to not access memory (like sin/cos) don't access memory! :)

llvm-svn: 15264
 2004-07-27 07:46:26 +00:00
Chris Lattner
5cfb85064e Fix hoisting of void typed values, e.g. calls 
llvm-svn: 15263
 2004-07-27 07:38:32 +00:00
Chris Lattner
687d568cf1 alloca void makes no sense 
llvm-svn: 15262
 2004-07-27 07:30:02 +00:00
Chris Lattner
e921652646 Remove a bogus assertion 
llvm-svn: 15261
 2004-07-27 07:22:21 +00:00
Chris Lattner
c76d21f55d Complete rewrite of this pass to be faster, use less memory, be easier to 
understand, and more accurate to boot!  This implements
GlobalModRef/purecse.ll over the previous impl.

llvm-svn: 15260
 2004-07-27 06:40:37 +00:00
Chris Lattner
4ea46f09bd new testcase 
llvm-svn: 15259
 2004-07-27 06:35:11 +00:00
Chris Lattner
6e66e31be8 Have some testcases 
llvm-svn: 15258
 2004-07-27 06:26:08 +00:00
Chris Lattner
de0fddf8ee Add a note 
llvm-svn: 15257
 2004-07-27 04:00:54 +00:00
Chris Lattner
7d98fd121c Fix out of date comment 
llvm-svn: 15256
 2004-07-27 03:04:30 +00:00
Chris Lattner
60e918e115 Simplify code and silence warning 
llvm-svn: 15255
 2004-07-27 02:34:49 +00:00
Chris Lattner
550242f7ec Use context-sensitive alias analysis to avoid pessimization in clients of 
AliasSetTracker (dse and licm).  This implements
DeadStoreElimination/context-sensitive.llx

llvm-svn: 15254
 2004-07-27 02:20:26 +00:00
Chris Lattner
17970df44f New testcase. DSE should delete all of the DEAD instructions. 
llvm-svn: 15253
 2004-07-27 02:19:27 +00:00
Chris Lattner
40bd881142 Make basicaa a bit more aggressive 
llvm-svn: 15252
 2004-07-27 02:18:52 +00:00
Chris Lattner
fe3fff9354 basic-aa can actually provide simple mod/ref info 
llvm-svn: 15251
 2004-07-27 02:13:55 +00:00
Chris Lattner
9cfa22fb48 This was implemented back in march 
llvm-svn: 15250
 2004-07-27 01:59:42 +00:00
Chris Lattner
33187c4026 Implement test/Regression/TableGen/ListSlices.td 
llvm-svn: 15249
 2004-07-27 01:01:21 +00:00
Chris Lattner
313fb44da9 New testcase for list slicing 
llvm-svn: 15248
 2004-07-27 01:00:56 +00:00
Chris Lattner
8dcbaf2f98 Add initial support for list slices. This currently allows you to do stuff 
like this:

def B {
  list<int> X = [10, 20, 30, 4, 1, 1231, 20] [2-4,2,2,0-6];
}

... which isn't particularly useful, but more is to come.

llvm-svn: 15247
 2004-07-26 23:21:34 +00:00
Reid Spencer
bf4651aa66 A utility to run an arbitrary program on each of the LLVM source files. 
This is like llvmgrep but instead of running grep, it runs the command
given by the first argument. For example, to find the top ten files with
the most lines in llvm, you could:

utils/llvmdo wc -l | sort -nb | tail

Or, to find any source files with the wrong permissions, you could:

utils/llvmdo ls -l | grep -v rw-r--r--

Hopefully, you get the idea.

llvm-svn: 15246
 2004-07-26 22:52:44 +00:00
Misha Brukman
6272268028 Do not store the stack pointer if the stack size is 0. 
Also, convert C-style comments to C++ and make sure code wraps at 80 cols.

llvm-svn: 15245
 2004-07-26 22:00:26 +00:00
Misha Brukman
a979e8a08a ADDI can take several forms, including: 
addi r1, r2, 0
  addi r1, <frame index #n>, 0

so we must check for the second parameter being a register for this instruction
to be considered a reg-to-reg copy.

llvm-svn: 15244
 2004-07-26 21:50:38 +00:00
Misha Brukman
a2cf775362 assert() on MachineInstr properties instead of checking them dynamically 
llvm-svn: 15243
 2004-07-26 21:35:58 +00:00
Misha Brukman
73687cfcc6 * Recognize `addi r1, r2, 0' a move instruction 
* List formats of instructions currently recognized as moves

llvm-svn: 15242
 2004-07-26 21:29:00 +00:00
Chris Lattner
87d624622f Remove dead section 
llvm-svn: 15241
 2004-07-26 21:16:55 +00:00
Misha Brukman
3e7a88e9db Fix indentation: should be 2 spaces. 
llvm-svn: 15240
 2004-07-26 18:48:58 +00:00
Misha Brukman
61ff8a374f Fix file header as it has been renamed. 
llvm-svn: 15239
 2004-07-26 18:45:48 +00:00
Misha Brukman
ccd1114518 Renamed files to have the `X86' prefix for uniqueness purposes. 
All CVS history was renamed, the *,v were copied over.  No worries.

llvm-svn: 15238
 2004-07-26 18:43:11 +00:00
Misha Brukman
288289f9a7 * Rewrote casts 
* Implemented GEP folding
* Dynamically output global address stuff once per function
* Fix casting fp<->short/byte

Patch contributed by Nate Begeman.

llvm-svn: 15237
 2004-07-26 18:13:24 +00:00
Misha Brukman
bf2ad22ff6 Increment the label number in runOnFunction() rather than while printing out 
some instruction.  Patch by Nate Begeman.

llvm-svn: 15236
 2004-07-26 16:28:33 +00:00
Misha Brukman
796cc48f99 More notes on bugs, unimplemented features, and suggested code improvements. 
Written by Nate Begeman.

llvm-svn: 15235
 2004-07-26 16:23:55 +00:00
Misha Brukman
29efda2e6b Fix subtracting values > 2^15 in the prologue/epilogue, by Nate Begeman. 
llvm-svn: 15234
 2004-07-26 16:22:52 +00:00
Reid Spencer
4cdc23b925 Added another test case for double FP constants as well. 
llvm-svn: 15233
 2004-07-26 15:04:13 +00:00
Chris Lattner
59aff88abe Implement DeadStoreElim/alloca.llx by observing that allocas are dead at the 
end of the function (either return or unwind)

llvm-svn: 15232
 2004-07-26 06:14:11 +00:00
Chris Lattner
780516c8e1 New testcase 
llvm-svn: 15231
 2004-07-26 06:11:42 +00:00