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Author SHA1 Message Date
Chris Lattner
8277141f09 Implement SimplifyCFG/BrUnwind.ll 
llvm-svn: 15022
 2004-07-20 01:17:38 +00:00
Chris Lattner
0a86aa9915 test that unconditional branches to unwinds are always eliminated 
llvm-svn: 15021
 2004-07-20 01:17:19 +00:00
Misha Brukman
6baf9045f6 Move handing of GlobalValues from getReg() to copyConstantToRegister(), this 
will avoid extra register-to-register copies.  Thanks to Chris for the idea.

llvm-svn: 15019
 2004-07-20 00:59:38 +00:00
Chris Lattner
d9c41a82a3 Rewrite cast->cast elimination code completely based on the information we 
actually care about.  Someday when the cast instruction is gone, we can do
better here, but this will do for now.  This implements
instcombine/cast.ll:test17/18 as well.

llvm-svn: 15018
 2004-07-20 00:59:32 +00:00
Chris Lattner
5a13111d34 Testcases missed by the instruction combiner 
llvm-svn: 15017
 2004-07-20 00:57:21 +00:00
Misha Brukman
8b9267b279 isupper() and tolower() are declared in <ctype.h> 
llvm-svn: 15016
 2004-07-20 00:52:16 +00:00
Misha Brukman
bec77933fa * Fn args passed in registers are now recorded as used by the call instruction 
`-> asm printer updated to not print out those registers with the call instr

All of Shootout tests now work.  Great thanks to Nate Begeman for the patch!

llvm-svn: 15015
 2004-07-20 00:42:19 +00:00
Misha Brukman
fdc633a29b * cFP class split into cFP32 and cFP64 
* Fn args passed in registers are now recorded as used by the call instruction
`-> asm printer updated to not print out those registers with the call instr
* Stack frame layout in prolog/epilog fixed, spills and vararg fns now work
* float/double to signed int codegen now correct
* various single precision float codegen bugs fixed
* const integer multiply codegen fixed
* select and setcc blocks inserted into the correct place in machine CFG
* load of integer constant code optimized

All of Shootout tests now work.  Great thanks to Nate Begeman for the patch!

llvm-svn: 15014
 2004-07-20 00:41:46 +00:00
Chris Lattner
e8b9b58454 While I'm at it, don't break codegen of mul by 3,5,9. 
llvm-svn: 15013
 2004-07-19 23:50:57 +00:00
Chris Lattner
f668465840 Generate better code for multiplies by negative constants like -4, -1, -9, etc. 
llvm-svn: 15012
 2004-07-19 23:47:21 +00:00
Alkis Evlogimenos
25fb592aa6 Remove dead code. 
llvm-svn: 15011
 2004-07-19 23:35:55 +00:00
Misha Brukman
f1dcfcbb96 Tabs to spaces. 
llvm-svn: 15010
 2004-07-19 21:22:02 +00:00
Misha Brukman
ab7bc6af0d Convert tabs to spaces; fix name of function in assert() description. 
llvm-svn: 15009
 2004-07-19 21:11:45 +00:00
Chris Lattner
3f60afac10 Fix broken link 
llvm-svn: 15008
 2004-07-19 19:30:40 +00:00
Chris Lattner
ee2626fd0a Just run 'make', not all-gcc 
llvm-svn: 15007
 2004-07-19 18:47:59 +00:00
John Criswell
bc9b933fb9 Added support for stdint.h. It is now automatically included by 
DataTypes.h.  So far, it doesn't seem to break Linux, Solaris, or MacOS X.
This should automatically include it for those people who need it.

llvm-svn: 15006
 2004-07-19 16:12:29 +00:00
Chris Lattner
c07b7fff45 Fix a bug that occurs when the last instruction in a range is dead 
llvm-svn: 15005
 2004-07-19 15:16:53 +00:00
Chris Lattner
bc53c119ac When joining intervals, join intervals in deeply nested loops first. This 
is a simple change, but seems to improve code a little.  For example, on
256.bzip2, we went from 75.0s -> 73.33s (2% speedup).

llvm-svn: 15004
 2004-07-19 14:40:29 +00:00
Chris Lattner
997f36e53f Split joinIntervals into two methods 
llvm-svn: 15003
 2004-07-19 14:08:10 +00:00
Chris Lattner
58a6310e16 Fix comment 
llvm-svn: 15002
 2004-07-19 13:28:39 +00:00
Reid Spencer
0bdb3605c7 bug 122: 
Simplify a conditional operator for a constant result from
GV->isNullValue()

llvm-svn: 15001
 2004-07-19 13:25:02 +00:00
Chris Lattner
7cdfccd573 Inline 4 methods 
llvm-svn: 15000
 2004-07-19 07:52:35 +00:00
Chris Lattner
773c66b02c Delete 4 methods, make clients use hte mark* methods directly 
llvm-svn: 14999
 2004-07-19 07:52:25 +00:00
Chris Lattner
22728e2f27 There is no need to store the MBB along with the MI any more, we can now 
ask instructions for their parent.

llvm-svn: 14998
 2004-07-19 07:04:55 +00:00
Chris Lattner
6c34920110 Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead) 
llvm-svn: 14997
 2004-07-19 06:55:21 +00:00
Chris Lattner
53fa752649 Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent() 
llvm-svn: 14996
 2004-07-19 06:26:50 +00:00
Chris Lattner
5ef1aa2870 Err, fix last checkin 
llvm-svn: 14995
 2004-07-19 06:03:51 +00:00
Chris Lattner
b1e00216d7 Fix bugpoint miscompilation support on OS/X 
Patch contributed by the fabulous Nate Begeman.

llvm-svn: 14994
 2004-07-19 06:00:17 +00:00
Chris Lattner
e7104f6f7b Two changes, both very significant: 
* vreg <-> vreg joining now works, enable it unconditionally when joining
  is enabled (which is the default).
* Fix a serious pessimization of spill code where we were saying that a
  spilled DEF operand was live into the subsequent instruction.  This allows
  for substantially better code when spilling starts to happen.

llvm-svn: 14993
 2004-07-19 05:55:50 +00:00
Chris Lattner
70d06b5c25 See comments. The live intervals were not coming out of the spiller in sorted 
order, causing the inactive list in the linearscan list to get unsorted, which
basically fuxored everything up severely.

These seems to fix the joiner, so with more testing I will enable it by default.

llvm-svn: 14992
 2004-07-19 05:15:10 +00:00
Chris Lattner
f5bdaf62f8 Fix assertion to not dereference end! 
llvm-svn: 14991
 2004-07-19 05:02:09 +00:00
Chris Lattner
42b44d3d1c Add some asserts that the list of intervals returned by addIntervalsForSpills 
is sorted.  This is not the case currently, which is causing no end of
problems.

llvm-svn: 14990
 2004-07-19 04:47:36 +00:00
Chris Lattner
10caeead75 remove the mbbi2mbbMap_, which was just keeping track of mbb order anyway. 
Heavily refactor handleVirtualRegisterDef, adding comments and making it more
efficient.  It is also much easier to follow and convince ones self that it is
correct :)

Add -debug output to the joine, showing the result of joining the intervals.

llvm-svn: 14989
 2004-07-19 02:15:56 +00:00
Chris Lattner
caba8651cd fill comment to 80 cols 
remove map that is not needed

llvm-svn: 14988
 2004-07-19 02:13:59 +00:00
Chris Lattner
6dbdddfa28 classof implementations are now inlined 
llvm-svn: 14987
 2004-07-19 00:59:10 +00:00
Chris Lattner
5a4eaff632 inline classof implementations, eliminate use of virtual methods. 
classof<ConstantXXX> is now MUCH faster than it used to be.

llvm-svn: 14986
 2004-07-19 00:58:47 +00:00
Chris Lattner
64444580a8 eliminate isConstantExpr, changes to isa<Constant> implementation 
llvm-svn: 14985
 2004-07-19 00:58:02 +00:00
Chris Lattner
07963adecb Add new enum entries for ConstantAggregateZeroVal/ConstantExprVal and 
rename ConstantVal to SimpleConstantVal

llvm-svn: 14984
 2004-07-19 00:57:40 +00:00
Chris Lattner
1353dd5917 Method now returns null, dtor is inlined 
llvm-svn: 14983
 2004-07-19 00:55:35 +00:00
Chris Lattner
2196acc9f2 Change method to return void. Inline dtor 
llvm-svn: 14982
 2004-07-19 00:55:19 +00:00
Chris Lattner
40107200fc Remove dead file 
llvm-svn: 14981
 2004-07-18 23:44:15 +00:00
Chris Lattner
ba8dc803cb Remove this printer 
llvm-svn: 14980
 2004-07-18 23:43:34 +00:00
Reid Spencer
5be5bc8453 A description of what this library is about, reference to the documentation 
and a list of don'ts for the library. All so future maintainers don't
break the important contract this library has with its user: LLVM.

llvm-svn: 14979
 2004-07-18 22:33:08 +00:00
Chris Lattner
f562d02a33 Add note about GCC 3.3.2 being completely broken 
llvm-svn: 14978
 2004-07-18 22:32:22 +00:00
Reid Spencer
27fc19e4fc Initiali Makefile for this library. 
llvm-svn: 14977
 2004-07-18 22:31:28 +00:00
Chris Lattner
9d3ff75eba Add a workaround for a GCC 3.3.2 bug 
llvm-svn: 14976
 2004-07-18 21:56:20 +00:00
Chris Lattner
c8d5982137 Doesn't exist 
llvm-svn: 14975
 2004-07-18 21:44:13 +00:00
Chris Lattner
ffc1df7399 Fix a performance regression from the CPR patch, simplify code 
llvm-svn: 14974
 2004-07-18 21:34:16 +00:00
Chris Lattner
9de817e13e Strip out and simplify some code. This also fixes the regression last 
night compiling cfrac.  It did not realize that code like this:

int G; int *H = &G;

takes the address of G.

llvm-svn: 14973
 2004-07-18 19:56:20 +00:00
Chris Lattner
8c4d6aa7e8 Minor cleanup, no functionality change 
llvm-svn: 14972
 2004-07-18 18:59:44 +00:00