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Author SHA1 Message Date
Chris Lattner
af17b1df84 Implement SimplifyCFG/BrUnwind.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15022 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 01:17:38 +00:00
Chris Lattner
c6c9db2fd7 test that unconditional branches to unwinds are always eliminated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15021 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 01:17:19 +00:00
Misha Brukman
ba1c1da36a Move handing of GlobalValues from getReg() to copyConstantToRegister(), this 
will avoid extra register-to-register copies.  Thanks to Chris for the idea.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15019 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:59:38 +00:00
Chris Lattner
bee7e7644b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15018 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:59:32 +00:00
Chris Lattner
6c08892814 Testcases missed by the instruction combiner 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15017 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:57:21 +00:00
Misha Brukman
497b52f381 isupper() and tolower() are declared in <ctype.h> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15016 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:52:16 +00:00
Misha Brukman
61114619bc * 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!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15015 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:42:19 +00:00
Misha Brukman
7e898c3e04 * 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!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15014 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-20 00:41:46 +00:00
Chris Lattner
4771288fe3 While I'm at it, don't break codegen of mul by 3,5,9. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15013 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 23:50:57 +00:00
Chris Lattner
596b97f1ab Generate better code for multiplies by negative constants like -4, -1, -9, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15012 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 23:47:21 +00:00
Alkis Evlogimenos
da77c44c2c Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15011 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 23:35:55 +00:00
Misha Brukman
a32355bb8e Tabs to spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15010 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 21:22:02 +00:00
Misha Brukman
049c48f1ad Convert tabs to spaces; fix name of function in assert() description. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15009 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 21:11:45 +00:00
Chris Lattner
cbf1edb875 Fix broken link 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15008 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 19:30:40 +00:00
Chris Lattner
9f9398e519 Just run 'make', not all-gcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15007 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 18:47:59 +00:00
John Criswell
7ed43ad3ab 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15006 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 16:12:29 +00:00
Chris Lattner
8640f4e666 Fix a bug that occurs when the last instruction in a range is dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15005 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 15:16:53 +00:00
Chris Lattner
cc0d156f7b 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15004 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 14:40:29 +00:00
Chris Lattner
1c5c0444f1 Split joinIntervals into two methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15003 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 14:08:10 +00:00
Chris Lattner
c49c872a1a Fix comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15002 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 13:28:39 +00:00
Reid Spencer
2a4cb68ea6 bug 122: 
Simplify a conditional operator for a constant result from
GV->isNullValue()


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15001 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 13:25:02 +00:00
Chris Lattner
f4fc36e738 Inline 4 methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15000 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 07:52:35 +00:00
Chris Lattner
81e26ce1da Delete 4 methods, make clients use hte mark* methods directly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14999 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 07:52:25 +00:00
Chris Lattner
74de8b1b26 There is no need to store the MBB along with the MI any more, we can now 
ask instructions for their parent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14998 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 07:04:55 +00:00
Chris Lattner
472405e0dc Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14997 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 06:55:21 +00:00
Chris Lattner
73d4adfb1e Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14996 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 06:26:50 +00:00
Chris Lattner
e312e156c3 Err, fix last checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14995 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 06:03:51 +00:00
Chris Lattner
5fbf29ce53 Fix bugpoint miscompilation support on OS/X 
Patch contributed by the fabulous Nate Begeman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14994 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 06:00:17 +00:00
Chris Lattner
8ea13c6233 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14993 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 05:55:50 +00:00
Chris Lattner
57eb15e316 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14992 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 05:15:10 +00:00
Chris Lattner
331cb7dde1 Fix assertion to not dereference end! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14991 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 05:02:09 +00:00
Chris Lattner
59073e02cc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14990 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 04:47:36 +00:00
Chris Lattner
6097d13b2a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14989 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 02:15:56 +00:00
Chris Lattner
6b92906010 fill comment to 80 cols 
remove map that is not needed


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14988 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 02:13:59 +00:00
Chris Lattner
ab4c19ec3e classof implementations are now inlined 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14987 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 00:59:10 +00:00
Chris Lattner
52eb13c58e inline classof implementations, eliminate use of virtual methods. 
classof<ConstantXXX> is now MUCH faster than it used to be.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14986 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 00:58:47 +00:00
Chris Lattner
9344063f5f eliminate isConstantExpr, changes to isa<Constant> implementation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14985 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 00:58:02 +00:00
Chris Lattner
66a434692b Add new enum entries for ConstantAggregateZeroVal/ConstantExprVal and 
rename ConstantVal to SimpleConstantVal


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14984 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 00:57:40 +00:00
Chris Lattner
f8083b7f20 Method now returns null, dtor is inlined 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14983 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 00:55:35 +00:00
Chris Lattner
f962ac798a Change method to return void. Inline dtor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14982 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-19 00:55:19 +00:00
Chris Lattner
e30ab88209 Remove dead file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14981 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 23:44:15 +00:00
Chris Lattner
269c80c6ba Remove this printer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14980 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 23:43:34 +00:00
Reid Spencer
12e7b11a63 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14979 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 22:33:08 +00:00
Chris Lattner
95e9258ba2 Add note about GCC 3.3.2 being completely broken 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14978 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 22:32:22 +00:00
Reid Spencer
98b5a34c81 Initiali Makefile for this library. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14977 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 22:31:28 +00:00
Chris Lattner
f98cfc716d Add a workaround for a GCC 3.3.2 bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14976 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 21:56:20 +00:00
Chris Lattner
f70c25f796 Doesn't exist 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14975 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 21:44:13 +00:00
Chris Lattner
8919cccc3d Fix a performance regression from the CPR patch, simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14974 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 21:34:16 +00:00
Chris Lattner
96940cb522 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14973 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 19:56:20 +00:00
Chris Lattner
9db07b9307 Minor cleanup, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14972 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-18 18:59:44 +00:00