Misha Brukman
7ace0409aa
Add prototype for ExtractCodeRegion()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12069 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-02 00:20:32 +00:00
Misha Brukman
38b8fd1078
Make a note that this is usually used via bugpoint.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12068 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-02 00:19:09 +00:00
Misha Brukman
538607fe45
Doxygenify some comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12064 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 23:53:11 +00:00
Alkis Evlogimenos
7472301d7a
Fix <p> missing <p> tag
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12063 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 23:25:38 +00:00
Alkis Evlogimenos
dd420e060a
Add a spiller option to llc. A simple spiller will come soon. When we get CFG in the machine code represenation a global spiller will also be possible. Also document the linear scan register allocator but mark it as experimental for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12062 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 23:18:15 +00:00
Alkis Evlogimenos
5f37502bfb
Add the long awaited memory operand folding support for linear scan
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12058 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 20:05:10 +00:00
Misha Brukman
9d0802e7dd
* If a badref has a name, print it out for ease of debugging
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* Doxygenify (some) comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12057 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 19:48:13 +00:00
Chris Lattner
23511597fe
Add new method
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12056 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 19:36:50 +00:00
Chris Lattner
82e9d7224e
Correctly add an array marker on a node when appropriate!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12055 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 19:02:54 +00:00
Misha Brukman
58ae9c7290
Fix grammar and doxygenify comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12054 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 18:31:19 +00:00
Misha Brukman
b97fce5252
* Add implementation of ExtractBasicBlock()
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* Add comments to ExtractLoop()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12053 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 18:28:34 +00:00
Misha Brukman
a8a06367f8
Add ability to extract a single basic block into a new function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12052 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 18:27:13 +00:00
Misha Brukman
1d83e11101
* HTML 4.01 Strict compliance
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* Removed unnecessary tabs in the entire file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12051 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 18:21:04 +00:00
Misha Brukman
daa4cb0f03
HTML 4.01 Strict compliance.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12050 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 17:47:27 +00:00
Chris Lattner
ec726a1a6e
Add this back, as its absence introduces assertions, and it seems to work now
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that Instructions are annotable again
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12045 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 15:28:27 +00:00
Tanya Lattner
f048bfd97d
fix bug in previous checkin
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12044 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 15:05:17 +00:00
Brian Gaeke
05b15fb075
TargetCacheInfo has been removed; its only uses were to propagate a constant
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(16) into certain areas of the SPARC V9 back-end. I'm fairly sure the US IIIi's
dcache has 32-byte lines, so I'm not sure where the 16 came from. However, in
the interest of not breaking things any more than they already are, I'm going
to leave the constant alone.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12043 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 06:43:29 +00:00
Tanya Lattner
9b3cbdbedb
Adding new Modulo Scheduling graph files.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12031 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:50:57 +00:00
Tanya Lattner
d14b83733e
Removing old graph files with new graph files that I wrote. Updated ModuloScheduling pass, but still in progress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12030 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:50:01 +00:00
Chris Lattner
2d6a6aa137
Expand on my note-to-self
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12029 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:44:44 +00:00
Chris Lattner
21585221b6
Handle passing constant integers to functions much more efficiently. Instead
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of generating this code:
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
call Y
we now generate:
mov DWORD PTR [%ESP], 4
mov DWORD PTR [%ESP + 4], 123
call Y
Which hurts the eyes less. :)
Considering that register pressure around call sites is already high (with all
of the callee clobber registers n stuff), this may help a lot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12028 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:42:43 +00:00
Brian Gaeke
f2cab76a47
Don't look in the .libs directories that libtool makes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12027 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:41:22 +00:00
Chris Lattner
ce6096f49b
Fix a minor code-quality issue. When passing 8 and 16-bit integer constants
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to function calls, we would emit dead code, like this:
int Y(int, short, double);
int X() {
Y(4, 123, 4);
}
--- Old
X:
sub %ESP, 20
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
*** mov %AX, 123
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
fld QWORD PTR [.CPIX_0]
fstp QWORD PTR [%ESP + 8]
call Y
mov %EAX, 0
# IMPLICIT_USE %EAX %ESP
add %ESP, 20
ret
Now we emit:
X:
sub %ESP, 20
mov %EAX, 4
mov DWORD PTR [%ESP], %EAX
mov %AX, 123
movsx %EAX, %AX
mov DWORD PTR [%ESP + 4], %EAX
fld QWORD PTR [.CPIX_0]
fstp QWORD PTR [%ESP + 8]
call Y
mov %EAX, 0
# IMPLICIT_USE %EAX %ESP
add %ESP, 20
ret
Next up, eliminate the mov AX and movsx entirely!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12026 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 02:34:08 +00:00
Chris Lattner
99df257910
Fix the "partial pool allocator" on em3d and others. The problem is that
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DSNodes, unlike other GraphTraits nodes, can have null outgoing edges, and
df_iterator doesn't take this into consideration. As a workaround, the
successor iterator now handles null nodes and 'indicates' that null has
no successors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12025 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 01:42:26 +00:00
Chris Lattner
9148ad3099
Make Module annotable. Reid has a bunch of code that depends on this, and
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we really don't win that much by eliminating this (not many Modules are
allocated), so it's not worth it. When we can, we should revisit this in
the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12023 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 01:25:37 +00:00
Chris Lattner
99cca7d3aa
Disable tail duplication in a case that breaks on Olden/tsp
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12021 91177308-0d34-0410-b5e6-96231b3b80d8
2004-03-01 01:12:13 +00:00
Misha Brukman
201ff603a7
Doxygenify comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12015 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 23:55:11 +00:00
Misha Brukman
99cc88bb64
* Remove function to find "main" in a Module, there's a method for that
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* Removing extraneous empty space and empty comment lines
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12014 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 23:09:10 +00:00
Chris Lattner
cbee990a29
Fix -debug-pass=Executions, which relied on Function, Module, and BasicBlock
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being annotable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12013 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 22:37:04 +00:00
Chris Lattner
06887c9a2a
Fix bug: test/Regression/Transforms/LowerInvoke/2004-02-29-PHICrash.llx
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... which tickled the lowerinvoke pass because it used the BCE routines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12012 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 22:24:41 +00:00
Chris Lattner
2b39c91a40
Testcase for a bug that caused a whole bunch of testcases to die in the nightly
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tester last night.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12011 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 22:15:51 +00:00
Chris Lattner
92bc3bc11c
Add an assert
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12010 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 22:01:51 +00:00
Chris Lattner
c81295ab24
Add back #include I messed up
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12009 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 21:40:53 +00:00
Chris Lattner
e8d43fdced
Urg, forgot to check this in.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12007 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 21:03:08 +00:00
Chris Lattner
61f57fae7a
Module does not need to be annotatable aka annotable
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12005 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:27:55 +00:00
Chris Lattner
a523cdf1b6
Remove public header. It's been moved to lib/Target/SparcV9
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12004 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:13:20 +00:00
Chris Lattner
08d4963d49
Move the private MachineInstrAnnot.h into a private directory.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12003 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:12:51 +00:00
Chris Lattner
78827e9f8b
Remove use of an ugly header
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12002 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:04:31 +00:00
Chris Lattner
585911ee21
Move methods out of .h file
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12001 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:02:39 +00:00
Chris Lattner
e85f2348c9
Do not use explicit casts that hide the dependence on Instruction being
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annotable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12000 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 19:02:26 +00:00
Chris Lattner
9548f20ad5
Ugh, the old sparc backend attaches MachineCodeForInstruction annotations on
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LLVM instructions. Because it contains an explicit cast, we didn't catch it.
I guess instruction's will be annotable for the duration of the sparcv9's
existence.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11999 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 18:54:23 +00:00
Alkis Evlogimenos
96c9b8b496
Add instruction name description.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11998 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 18:44:03 +00:00
Alkis Evlogimenos
7f6124cfc2
Use correct template for SHLD and SHRD instructions so that the memory
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operand size is correctly specified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11997 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 09:19:40 +00:00
Alkis Evlogimenos
9c22aeb0b2
Improve allocation order:
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1) For 8-bit registers try to use first the ones that are parts of the
same register (AL then AH). This way we only alias 2 16/32-bit
registers after allocating 4 8-bit variables.
2) Move EBX as the last register to allocate. This will cause less
spills to happen since we will have 8-bit registers available up to
register excaustion (assuming we use the allocation order). It
would be nice if we could push all of the 8-bit aliased registers
towards the end but we much prefer to keep callee saved register to
the end to avoid saving them on entry and exit of the function.
For example this gives a slight reduction of spills with linear scan
on 164.gzip.
Before:
11221 asm-printer - Number of machine instrs printed
975 spiller - Number of loads added
675 spiller - Number of stores added
398 spiller - Number of register spills
After:
11182 asm-printer - Number of machine instrs printed
952 spiller - Number of loads added
652 spiller - Number of stores added
386 spiller - Number of register spills
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11996 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 09:17:01 +00:00
Alkis Evlogimenos
8295f202d9
A big X86 instruction rename. The instructions are renamed to make
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their names more decriptive. A name consists of the base name, a
default operand size followed by a character per operand with an
optional special size. For example:
ADD8rr -> add, 8-bit register, 8-bit register
IMUL16rmi -> imul, 16-bit register, 16-bit memory, 16-bit immediate
IMUL16rmi8 -> imul, 16-bit register, 16-bit memory, 8-bit immediate
MOVSX32rm16 -> movsx, 32-bit register, 16-bit memory
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11995 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 08:50:03 +00:00
Brian Gaeke
6ac5300fbc
Remove dead member variables of SparcV9SchedInfo and TargetSchedInfo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11994 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 08:40:03 +00:00
Chris Lattner
ee352852e7
Eliminate the X86-specific BMI functions, using BuildMI instead.
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Replace uses of addZImm with addImm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11992 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 07:22:16 +00:00
Chris Lattner
168aa90bf6
Fix a miscompilation of 197.parser that occurs when you have single basic
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block loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11990 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 07:10:16 +00:00
Chris Lattner
4279f3c984
Fix PR255: [tailduplication] Single basic block loops are very rare
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Note that this is a band-aid put over a band-aid. This just undisables
tail duplication in on very specific case that it seems to work in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11989 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 06:41:20 +00:00
Brian Gaeke
e9f6f2c049
Update comment at head of file. Also fix C 'typedef struct' nonsense I
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inadvertently left in here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11988 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-29 06:33:28 +00:00