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8268 Commits

Author SHA1 Message Date
Chris Lattner
bd38edfe23 If a global is just loaded and restored, realize that it is not changing 
value.  This allows us to turn more globals into constants and eliminate them.
This patch implements GlobalOpt/load-store-global.llx.

Note that this patch speeds up 255.vortex from:

Output/255.vortex.out-cbe.time:program 7.640000
Output/255.vortex.out-llc.time:program 9.810000

to:

Output/255.vortex.out-cbe.time:program 7.250000
Output/255.vortex.out-llc.time:program 9.490000

Which isn't bad at all!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17746 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 20:50:30 +00:00
Misha Brukman
fc256599b3 Fix build on Linux/PowerPC64 using SuSE GCC (#undef PPC) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17744 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 20:34:01 +00:00
Reid Spencer
9577667822 Moved to lib/Bytecode/Archive in preparation for re-write. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17742 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 19:59:40 +00:00
Chris Lattner
b58934484b This optimization makes MANY phi nodes that all have the same incoming value. 
If this happens, detect it early instead of relying on instcombine to notice
it later.  This can be a big speedup, because PHI nodes can have many
incoming values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17741 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 19:29:34 +00:00
Chris Lattner
bac32866a7 Implement instcombine/phi.ll:test6 - pulling operations through PHI nodes. 
This exposes subsequent optimization possiblities and reduces code size.
This triggers 1423 times in spec.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17740 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 19:13:23 +00:00
Chris Lattner
711b3402aa Transform this: 
%X = alloca ...
  %Y = alloca ...
    X == Y

into false.  This allows us to simplify some stuff in eon (and probably
many other C++ programs) where operator= was checking for self assignment.
Folding this allows us to SROA several additional structs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17735 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 07:33:16 +00:00
Chris Lattner
6739eae7ea Remove note to self 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17734 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 06:57:47 +00:00
Brian Gaeke
da9b3668c2 Fix problem with insertion point for ADJCALLSTACKDOWN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17733 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 06:32:08 +00:00
Brian Gaeke
5179e41d6e Update lists of failing unit tests. 
Exclude bigfib, so that we effectively exclude all C++ benchmarks.
Update to-do list: mention va_start.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17732 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 06:32:07 +00:00
Chris Lattner
a990d94330 If a function always returns a constant, replace all calls sites with that 
constant value.  This makes the return value dead and allows for
simplification in the caller.

This implements IPConstantProp/return-constant.ll

This triggers several dozen times throughout SPEC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17730 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 06:10:11 +00:00
Brian Gaeke
04fe7477b1 Fix NotTest - round up extraStack to the nearest doubleword, if it is 
not zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17728 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 05:19:00 +00:00
Chris Lattner
d878ecd904 Teach SROA how to promote an array index that is variable, if the dimension 
of the array is just two.  This occurs 8 times in gcc, 6 times in crafty, and
12 times in 099.go.

This implements ScalarRepl/sroa_two.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17727 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 05:00:19 +00:00
Brian Gaeke
b31a828533 Update failing Benchmarks; point out that I'm skipping Shootout-C++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17725 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 04:43:12 +00:00
Chris Lattner
f5990edc87 Rearrange some code, no functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17724 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 04:24:28 +00:00
Brian Gaeke
1c745818ff Update expected UnitTests failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17723 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 03:22:08 +00:00
Brian Gaeke
24b90c3647 Rewrite outgoing arg handling to handle more weird corner cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17722 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 03:22:07 +00:00
Brian Gaeke
54799c2a51 Support UndefValue emission. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17721 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-14 03:22:05 +00:00
Chris Lattner
4c989b6bd7 Remove debugging code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17719 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 23:32:53 +00:00
Chris Lattner
11a3d7b7dd Argument promotion transforms functions to unconditionally load their 
argument pointers.  This is only valid to do if the function already
unconditionally loaded an argument or if the pointer passed in is known
to be valid.  Make sure to do the required checks.

This fixed ArgumentPromotion/control-flow.ll and the Burg program.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17718 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 23:31:34 +00:00
Chris Lattner
4b2c09fa22 Don't print unneeded labels 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17714 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 23:27:11 +00:00
Chris Lattner
4394d51467 Hack around stupidity in GCC, fixing Burg with the CBE and 
CBackend/2004-11-13-FunctionPointerCast.llx


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17710 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 22:21:56 +00:00
Chris Lattner
ce7cafa960 shld is a very high latency operation. Instead of emitting it for shifts of 
two or three, open code the equivalent operation which is faster on athlon
and P4 (by a substantial margin).

For example, instead of compiling this:

long long X2(long long Y) { return Y << 2; }

to:

X3_2:
        movl 4(%esp), %eax
        movl 8(%esp), %edx
        shldl $2, %eax, %edx
        shll $2, %eax
        ret

Compile it to:

X2:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        movl %eax, %edx
        shrl $30, %edx
        leal (%edx,%ecx,4), %edx
        shll $2, %eax
        ret

Likewise, for << 3, compile to:

X3:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        movl %eax, %edx
        shrl $29, %edx
        leal (%edx,%ecx,8), %edx
        shll $3, %eax
        ret

This matches icc, except that icc open codes the shifts as adds on the P4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17707 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 20:48:57 +00:00
Chris Lattner
62f5a9402c Add missing check 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17706 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 20:04:38 +00:00
Chris Lattner
44205cadba Compile: 
long long X3_2(long long Y) { return Y+Y; }
int X(int Y) { return Y+Y; }

into:

X3_2:
        movl 4(%esp), %eax
        movl 8(%esp), %edx
        addl %eax, %eax
        adcl %edx, %edx
        ret
X:
        movl 4(%esp), %eax
        addl %eax, %eax
        ret

instead of:

X3_2:
        movl 4(%esp), %eax
        movl 8(%esp), %edx
        shldl $1, %eax, %edx
        shll $1, %eax
        ret

X:
        movl 4(%esp), %eax
        shll $1, %eax
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17705 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 20:03:48 +00:00
Chris Lattner
50af16a97b Simplify handling of shifts to be the same as we do for adds. Add support 
for (X * C1) + (X * C2) (where * can be mul or shl), allowing us to fold:

   Y+Y+Y+Y+Y+Y+Y+Y

into
         %tmp.8 = shl long %Y, ubyte 3           ; <long> [#uses=1]

instead of

        %tmp.4 = shl long %Y, ubyte 2           ; <long> [#uses=1]
        %tmp.12 = shl long %Y, ubyte 2          ; <long> [#uses=1]
        %tmp.8 = add long %tmp.4, %tmp.12               ; <long> [#uses=1]

This implements add.ll:test25

Also add support for (X*C1)-(X*C2) -> X*(C1-C2), implementing sub.ll:test18


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17704 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 19:50:12 +00:00
Chris Lattner
65aedc1a4e Fold: 
(X + (X << C2)) --> X * ((1 << C2) + 1)
   ((X << C2) + X) --> X * ((1 << C2) + 1)

This means that we now canonicalize "Y+Y+Y" into:

        %tmp.2 = mul long %Y, 3         ; <long> [#uses=1]

instead of:

        %tmp.10 = shl long %Y, ubyte 1          ; <long> [#uses=1]
        %tmp.6 = add long %Y, %tmp.10               ; <long> [#uses=1]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17701 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 19:31:40 +00:00
Chris Lattner
0c3b390a54 Lazily create the abort message, so only translation units that use unwind 
will actually get it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17700 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 19:07:32 +00:00
Chris Lattner
9ecc046184 Fix: CodeExtractor/2004-11-12-InvokeExtract.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17699 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-13 00:06:45 +00:00
Chris Lattner
68c311aac6 Fix a bug where the code extractor would get a bit confused handling invoke 
instructions, setting DefBlock to a block it did not have dom info for.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17697 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-12 23:50:44 +00:00
Chris Lattner
44c94b9671 Simplify handling of constant initializers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17696 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-12 22:42:57 +00:00
Reid Spencer
5c911ab6f1 Makefile for lib/Linker 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17695 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-12 20:38:45 +00:00
Reid Spencer
7f49602e5a This file originated in lib/VMCore/Linker.cpp but now lives in 
lib/Linker/LinkModules.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17694 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-12 20:37:43 +00:00
Reid Spencer
c408c45900 This file originated in tools/gccld/Linker.cpp but now lives in 
lib/Linker/LinkArchives.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17693 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-12 20:34:32 +00:00
Chris Lattner
04252fed78 Make this build in release mode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17684 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-11 22:11:17 +00:00
Chris Lattner
d79c7b43f4 Actually, leave the check in. This prevents us from counting dead arguments 
as IPCP opportunities.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17680 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-11 07:47:54 +00:00
Chris Lattner
3e062eacab Fix bug: IPConstantProp/deadarg.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17679 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-11 07:46:29 +00:00
Chris Lattner
ff1529b6cf Make IP Constant prop more aggressive about handling self recursive calls. 
This implements IPConstantProp/recursion.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17666 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-10 19:43:59 +00:00
John Criswell
546faca4ef Correct the name of stosd for the AT&T syntax: 
It's stosl (l for long == 32 bit).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17658 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-10 04:48:15 +00:00
Chris Lattner
c890bfe1da Do not let dead constant expressions hanging off of functions prevent IPCP. 
This allows to elimination of a bunch of global pool descriptor args from
programs being pool allocated (and is also generally useful!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17657 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 20:47:30 +00:00
Reid Spencer
4b82681c65 Fix isBytecodeFile to correctly recognized compressed bytecode too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17655 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 20:27:23 +00:00
Reid Spencer
9195f37c5f * Implement getStatusInfo for getting stat(2) like information 
* Implement createTemporaryFile for mkstemp(3) functionality
* Fix isBytecodeFile to accept llvc magic # (compressed) as bytecode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17654 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 20:26:31 +00:00
John Criswell
b5810282ee Recognize compressed LLVM bytecode files. 
This should fix the problem of not being able to link compressed LLVM
bytecode files from LLVM libraries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17648 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 19:37:07 +00:00
Reid Spencer
580a1164d8 Tune compression: 
bzip2: block size 9 -> 5, reduces memory by 400Kbytes, doesn't affect speed
       or compression ratio on all but the largest bytecode files (>1MB)
zip:   level 9 -> 6, this speeds up compression time by ~30% but only
       degrades the compressed size by a few bytes per megabyte. Those few
       bytes aren't worth the effort.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17647 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 17:58:09 +00:00
Chris Lattner
a8e475093a Change this back so that I get stable numbers to reflect the change from the 
nightly testers


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17646 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 08:05:23 +00:00
Chris Lattner
52f20f8308 Fix bug: 2004-11-08-FreeUseCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17642 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 05:10:56 +00:00
Misha Brukman
710d1ce4f0 * Convert tabs to spaces 
* Order #includes according to style guide
* Remove extraneous blank lines


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17639 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 04:27:19 +00:00
Misha Brukman
669b524399 Output the program name (in this case, gccld) with warning about invalid files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17638 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 04:24:59 +00:00
Nate Begeman
a591457857 Allow hbd to be bugpointable on darwin by fixing common and linkonce codegen 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17637 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-09 04:01:18 +00:00
Misha Brukman
336e56e67d Handle headers for compressed bytecode files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17634 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-08 22:03:32 +00:00
Misha Brukman
eda20f933b Don't silently ignore invalid files: tell the user! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17633 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-08 22:03:10 +00:00
Chris Lattner
ac6d4854e1 Fix a bug that was preventing povray and namd from pool allocating correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17632 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-08 21:08:46 +00:00
Chris Lattner
beacefae61 Handle assert_fail special 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17631 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-08 21:08:28 +00:00
Reid Spencer
01a42e40ed Fix a typo: isvalid -> isValid 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17621 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-08 08:27:51 +00:00
Nate Begeman
676dee6ae9 Put int the getReg cast optimization from x86 so that we generate fewer 
move instructions for the register allocator to coalesce.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17608 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-08 02:25:40 +00:00
Misha Brukman
895eddfad4 Implement ExecutionEngine::freeMachineCodeForFunction() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17601 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 23:58:46 +00:00
Chris Lattner
ae18963a70 VERY large functions that are only called from one place are not really 
exciting to inline.  Only inline medium or small sized functions with a
single call site.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17588 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 21:46:47 +00:00
Nate Begeman
075cdc655e Disable bogus cast elimination when the cast is used by a setcc instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17583 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 20:23:42 +00:00
Reid Spencer
f0c977cbac * Comments & cleanup per CL code review. 
* Accept 'llvc' as signature for compressed bytecode


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17579 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 18:20:55 +00:00
Reid Spencer
36eea80616 Add comments per CL code review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17578 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 18:19:00 +00:00
Reid Spencer
83296f5496 * Add comments and cleanup per CL code review 
* Make signature for compressed bytecode llvc instead of unreadable
* Make the CompressionContext have a constructor and destructor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17576 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 18:17:38 +00:00
Misha Brukman
fb4863ac55 Replace uses of llvm.org with llvm.cs.uiuc.edu 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17549 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 00:58:38 +00:00
Misha Brukman
d8b8912861 Consistently use llvm.cs.uiuc.edu instead of llvm.org 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17548 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 00:58:20 +00:00
Chris Lattner
26818012e3 Decompose* is V9 specific, make it internal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17547 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 00:43:24 +00:00
Chris Lattner
00a4fe48ac This is V9 specific, move it there. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17545 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 00:39:26 +00:00
Chris Lattner
64a26c7bf8 Move this file from lib/Transforms/Scalar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17544 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-07 00:39:09 +00:00
Reid Spencer
17f52c5c46 Add support for compressed bytecode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17535 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-06 23:17:23 +00:00
Reid Spencer
2bcfcbe795 Implement the GetBytecodeSymbols interface function to extract just the 
externally visible defined symbols from a bytecode file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17503 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-06 08:56:40 +00:00
Reid Spencer
cdb21a9e49 Makefile for the LLVMArchive library. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17500 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-06 08:52:36 +00:00
Reid Spencer
362cbf0d74 First kinda/sorta working version of the Archive library. Reading is not 
yet supported but writing works. Way too early to review this. More to come


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17499 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-06 08:51:45 +00:00
Reid Spencer
07adb2836b Stop propagating method names that violate the coding standard 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17498 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-05 22:15:36 +00:00
John Criswell
e5cda8e727 Fix compilation problem; make the cast and the LHS be the same type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17488 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-05 16:17:06 +00:00
Chris Lattner
53fe2beb01 Remove dead var 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17485 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-05 04:52:08 +00:00
Chris Lattner
141e3fd81d Quiet VC++ warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17484 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-05 04:50:59 +00:00
Chris Lattner
41ffe4b531 Do not make i have bigger scope that we need 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17483 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-05 04:47:37 +00:00
Chris Lattner
183f2eb860 Remove dead vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17482 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-05 04:46:22 +00:00
Chris Lattner
f158092801 Fix some warnings on VC++ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17481 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-05 04:45:43 +00:00
Nate Begeman
28dd2fc240 Thanks to sabre for pointing out that we were incorrectly codegen'ing 
int test(int x) { return 32768 - x; }

Fixed by teaching the function that checks a constant's validity to be used
as an immediate argument about subtract-from instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17476 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-04 19:43:18 +00:00
Brian Gaeke
6931fd61c0 Handle "call" operands of type long/ulong passed in registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17464 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-04 00:27:04 +00:00
Chris Lattner
82962de3b9 Don't call Constant::getNullValue when the argument could be VoidTy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17457 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-03 18:51:26 +00:00
Chris Lattner
da6122f61d Fix this function to not say that longs have 8-byte alignment on X86/PPC. 
This method is really a gross hack, but at least we can make it work on
the targets we support right now.

This bug fix stops a crash in a testcase reduced from 176.gcc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17443 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-02 22:18:18 +00:00
Tanya Lattner
80f085500f Added gross hacks such as creating my own def-use map, and picking on Instruction that I can add all my TmpInstructions to its MCFI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17441 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-02 21:04:56 +00:00
Chris Lattner
f1de30acce Graphs that are part of equivalence sets can be multi-function SCC's 
themselves.  Make sure to update DSInfo correctly.  This fixes a testcase
reduced from Prolangs-C++/objects


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17439 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-02 20:31:06 +00:00
Chris Lattner
caa35bc0b6 Correctly handle new SCC's found as a result of merging EQ graphs do to 
function pointer equivalences.  This fixes many problems, including a testcase
reduced Prolangs-C++/objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17437 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-02 19:29:59 +00:00
Chris Lattner
033a7d5389 Substantially cleanup/speedup the eq graphs pass by walking the callgraph 
a DSGraph at a time instead of a function at a time.  This is also more
correct, though it doesn't seem to fix any programs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17435 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-02 17:51:11 +00:00
Chris Lattner
a62869b064 Fix a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17431 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-02 15:27:57 +00:00
Chris Lattner
983baf472f Minor cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17428 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-02 06:38:58 +00:00
Chris Lattner
d308f8a87f * Rearrange code slightly 
* Disable broken transforms for simplifying (setcc (cast X to larger), CI)
  where CC is not != or ==


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17422 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-02 03:50:32 +00:00
Chris Lattner
4457f7ea46 Remove more dead methods 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17413 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-01 21:07:05 +00:00
Chris Lattner
fcb7d950bc Rename FoldedGraph -> DSInfo to be consistent with other passes 
delete some dead methods


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17410 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-01 21:02:23 +00:00
Chris Lattner
77408b8987 Get rid of the EquivClassGraphArgsInfo class, and the map that held it. 
We only need one instance of the vector that it contains at a time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17407 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-01 20:37:00 +00:00
Chris Lattner
7cc372bfc3 Add placeholder variable to make Win32 work, applied for Morten Ofstad 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17406 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-01 20:10:20 +00:00
Chris Lattner
68f9658fcb Eliminate the cloneGraph method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17405 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-01 19:54:06 +00:00
Chris Lattner
7e54a01ddb Speed up the tail duplication pass on the testcase below from 68.2s to 1.23s: 
#define CL0(a) case a: f(); goto c;
 #define CL1(a) CL0(a##0) CL0(a##1) CL0(a##2) CL0(a##3) CL0(a##4) CL0(a##5) \
 CL0(a##6) CL0(a##7) CL0(a##8) CL0(a##9)
 #define CL2(a) CL1(a##0) CL1(a##1) CL1(a##2) CL1(a##3) CL1(a##4) CL1(a##5) \
 CL1(a##6) CL1(a##7) CL1(a##8) CL1(a##9)
 #define CL3(a) CL2(a##0) CL2(a##1) CL2(a##2) CL2(a##3) CL2(a##4) CL2(a##5) \
 CL2(a##6) CL2(a##7) CL2(a##8) CL2(a##9)
 #define CL4(a) CL3(a##0) CL3(a##1) CL3(a##2) CL3(a##3) CL3(a##4) CL3(a##5) \
 CL3(a##6) CL3(a##7) CL3(a##8) CL3(a##9)

 void f();

 void a() {
     int b;
  c: switch (b) {
         CL4(1)
     }
 }

This comes from GCC PR 15524


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17390 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-01 07:05:07 +00:00
Chris Lattner
bfd3e52701 Do not compute the predecessor list for a block unless we need it. 
This speeds up simplifycfg on this program, from 44.87s to 0.29s (with
a profiled build):

 #define CL0(a) case a: goto c;
 #define CL1(a) CL0(a##0) CL0(a##1) CL0(a##2) CL0(a##3) CL0(a##4) CL0(a##5) \
 CL0(a##6) CL0(a##7) CL0(a##8) CL0(a##9)
 #define CL2(a) CL1(a##0) CL1(a##1) CL1(a##2) CL1(a##3) CL1(a##4) CL1(a##5) \
 CL1(a##6) CL1(a##7) CL1(a##8) CL1(a##9)
 #define CL3(a) CL2(a##0) CL2(a##1) CL2(a##2) CL2(a##3) CL2(a##4) CL2(a##5) \
 CL2(a##6) CL2(a##7) CL2(a##8) CL2(a##9)
 #define CL4(a) CL3(a##0) CL3(a##1) CL3(a##2) CL3(a##3) CL3(a##4) CL3(a##5) \
 CL3(a##6) CL3(a##7) CL3(a##8) CL3(a##9)

 void f();

 void a() {
     int b;
  c: switch (b) {
         CL4(1)
     }
 }

This testcase is contrived to expose N^2 behavior, but this patch should speedup
simplifycfg on any programs that use large switch statements.  This testcase
comes from GCC PR17895.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17389 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-11-01 06:53:58 +00:00
Chris Lattner
31d3f671be * Do not refer to ActualCallees in CBU, when we can do it locally. 
* *DO NOT* print CBU graphs when asked to print our own.  This is just
  FREAKING confusing and misleading: it's better to not print anything.
* Simplify and clean up some code
* Add some more paranoia assertion checking code that I found to track
  down this bug:
* Fix a nasty bug that was causing us to crash on Prolangs-C++/objects,
  where we were missing processing some graphs.  This hunk is the bugfix:

-    if (!I->isExternal() && !FoldedGraphsMap.count(I))
+    if (!I->isExternal() && !ValMap.count(I))

  urg!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17386 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-31 23:41:26 +00:00
Chris Lattner
4bbf3dfbe6 Simplify graph traversal, improve grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17383 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-31 23:01:34 +00:00
Chris Lattner
ab8544aa75 Do not do horrible things to the CBU graphs. In particular, we do NOT own 
the CBU graphs, copy them instead of hacking on the CBU graphs.

Also, instead of forwarding request from ECGraphs clients to the CBU graphs
clients, service them ourselves.

Finally, remove a broken "optimization"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17378 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-31 21:56:11 +00:00
Chris Lattner
3b7b81b814 Fix comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17377 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-31 21:54:51 +00:00
Chris Lattner
e84c23e0c1 Improve comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17375 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-31 19:57:43 +00:00
Chris Lattner
f498568240 Fix another bug in Prolangs-C++/objects 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17372 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-10-31 18:13:19 +00:00