9492af43c4
New testcase that instcombine should help out with.
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llvm-svn: 15023
2004-07-20 01:47:49 +00:00
5823ac1c21
Implement SimplifyCFG/BrUnwind.ll
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llvm-svn: 15022
2004-07-20 01:17:38 +00:00
d4cecb9e2f
test that unconditional branches to unwinds are always eliminated
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llvm-svn: 15021
2004-07-20 01:17:19 +00:00
5e744fa1a3
Move handing of GlobalValues from getReg() to copyConstantToRegister(), this
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will avoid extra register-to-register copies. Thanks to Chris for the idea.
llvm-svn: 15019
2004-07-20 00:59:38 +00:00
4e2dbc6b4a
Rewrite cast->cast elimination code completely based on the information we
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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
10a4194651
Testcases missed by the instruction combiner
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llvm-svn: 15017
2004-07-20 00:57:21 +00:00
d21ef91bc4
isupper() and tolower() are declared in <ctype.h>
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llvm-svn: 15016
2004-07-20 00:52:16 +00:00
22802cc6cd
* Fn args passed in registers are now recorded as used by the call instruction
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`-> 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
818a9dc317
* cFP class split into cFP32 and cFP64
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* 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
f8cf35855a
While I'm at it, don't break codegen of mul by 3,5,9.
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llvm-svn: 15013
2004-07-19 23:50:57 +00:00
7c06d44f42
Generate better code for multiplies by negative constants like -4, -1, -9, etc.
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llvm-svn: 15012
2004-07-19 23:47:21 +00:00
12a71ea03e
Remove dead code.
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llvm-svn: 15011
2004-07-19 23:35:55 +00:00
8e677e88f6
Tabs to spaces.
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llvm-svn: 15010
2004-07-19 21:22:02 +00:00
a270467ceb
Convert tabs to spaces; fix name of function in assert() description.
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llvm-svn: 15009
2004-07-19 21:11:45 +00:00
8a92e19ba1
Fix broken link
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llvm-svn: 15008
2004-07-19 19:30:40 +00:00
c88858f576
Just run 'make', not all-gcc
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llvm-svn: 15007
2004-07-19 18:47:59 +00:00
b92c7c2270
Added support for stdint.h. It is now automatically included by
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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
15dfdb4e01
Fix a bug that occurs when the last instruction in a range is dead
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llvm-svn: 15005
2004-07-19 15:16:53 +00:00
c8fb1fb5bb
When joining intervals, join intervals in deeply nested loops first. This
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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
d10d373ce9
Split joinIntervals into two methods
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llvm-svn: 15003
2004-07-19 14:08:10 +00:00
6345fbe820
Fix comment
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llvm-svn: 15002
2004-07-19 13:28:39 +00:00
82e7fe5b5b
bug 122:
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Simplify a conditional operator for a constant result from
GV->isNullValue()
llvm-svn: 15001
2004-07-19 13:25:02 +00:00
57ca7382d9
Inline 4 methods
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llvm-svn: 15000
2004-07-19 07:52:35 +00:00
056ee8a0a5
Delete 4 methods, make clients use hte mark* methods directly
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llvm-svn: 14999
2004-07-19 07:52:25 +00:00
aef6c2a350
There is no need to store the MBB along with the MI any more, we can now
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ask instructions for their parent.
llvm-svn: 14998
2004-07-19 07:04:55 +00:00
a74cf5a7d9
Simplify the interface to LiveVariables::addVirtualRegister(Killed|Dead)
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llvm-svn: 14997
2004-07-19 06:55:21 +00:00
5027de35ed
Remove the DefBlock element of VarInfo. DefBlock is always DefInst->getParent()
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llvm-svn: 14996
2004-07-19 06:26:50 +00:00
46c48a9654
Err, fix last checkin
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llvm-svn: 14995
2004-07-19 06:03:51 +00:00
874ffdd592
Fix bugpoint miscompilation support on OS/X
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Patch contributed by the fabulous Nate Begeman.
llvm-svn: 14994
2004-07-19 06:00:17 +00:00
a618e13c83
Two changes, both very significant:
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* 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
c56f90d156
See comments. The live intervals were not coming out of the spiller in sorted
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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
8c8144b958
Fix assertion to not dereference end!
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llvm-svn: 14991
2004-07-19 05:02:09 +00:00
70f8dca59b
Add some asserts that the list of intervals returned by addIntervalsForSpills
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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
4f2e2a3f80
remove the mbbi2mbbMap_, which was just keeping track of mbb order anyway.
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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
05920e7a70
fill comment to 80 cols
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remove map that is not needed
llvm-svn: 14988
2004-07-19 02:13:59 +00:00
5230e70834
classof implementations are now inlined
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llvm-svn: 14987
2004-07-19 00:59:10 +00:00
370f8871a6
inline classof implementations, eliminate use of virtual methods.
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classof<ConstantXXX> is now MUCH faster than it used to be.
llvm-svn: 14986
2004-07-19 00:58:47 +00:00
1f46ad5a2d
eliminate isConstantExpr, changes to isa<Constant> implementation
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llvm-svn: 14985
2004-07-19 00:58:02 +00:00
afde969989
Add new enum entries for ConstantAggregateZeroVal/ConstantExprVal and
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rename ConstantVal to SimpleConstantVal
llvm-svn: 14984
2004-07-19 00:57:40 +00:00
2730e6aef1
Method now returns null, dtor is inlined
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llvm-svn: 14983
2004-07-19 00:55:35 +00:00
d20f27064b
Change method to return void. Inline dtor
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llvm-svn: 14982
2004-07-19 00:55:19 +00:00
1bfcb28da4
Remove dead file
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llvm-svn: 14981
2004-07-18 23:44:15 +00:00
421cd083d6
Remove this printer
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llvm-svn: 14980
2004-07-18 23:43:34 +00:00
44a81c6bdd
A description of what this library is about, reference to the documentation
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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
e0050f06b0
Add note about GCC 3.3.2 being completely broken
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llvm-svn: 14978
2004-07-18 22:32:22 +00:00
9673fb744c
Initiali Makefile for this library.
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llvm-svn: 14977
2004-07-18 22:31:28 +00:00
13e5831bd0
Add a workaround for a GCC 3.3.2 bug
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llvm-svn: 14976
2004-07-18 21:56:20 +00:00
517f1847ba
Doesn't exist
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llvm-svn: 14975
2004-07-18 21:44:13 +00:00
e2774757fe
Fix a performance regression from the CPR patch, simplify code
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llvm-svn: 14974
2004-07-18 21:34:16 +00:00
d47504d9db
Strip out and simplify some code. This also fixes the regression last
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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