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Author SHA1 Message Date
Chris Lattner
8c2730e347 Annotate functions with edge counts as well, if they are available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12233 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 20:04:32 +00:00
Chris Lattner
dbbbfef165 If we have edge counts, we can produce block counts. I've verified that 
using an edge profile to produce block counts gives the exact same numbers
as using a block count directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12232 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 20:03:52 +00:00
Chris Lattner
9f717ef279 Adjust to new interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12231 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 18:51:45 +00:00
Chris Lattner
0b6af79e62 Add the ability to put an annotation at the end of a basic block as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12230 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 18:51:05 +00:00
Chris Lattner
01945c1739 Add initial support for reading edge counts. This will be improved to enable 
translation of edge counts into block/function counts when possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12229 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 18:20:18 +00:00
Chris Lattner
fd755f7c7c Add support for representing edge counts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12228 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 18:19:37 +00:00
Chris Lattner
127cab2cc7 Add edge profiling support to the runtime library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12227 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 18:04:31 +00:00
Misha Brukman
d6cf0d4d4f Fix link to license: point to current version in CVS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12226 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 17:59:31 +00:00
Chris Lattner
b2f12a2c38 Initial support for edge profiling 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12225 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 17:54:34 +00:00
Chris Lattner
467dd2ec61 Split utility functions out of BlockProfiling.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12224 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 17:06:13 +00:00
Chris Lattner
9ee5d2296b Remove the comment "Constants must always have an initial value.", which 
is incorrect.  Fix some formatting nastiness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12223 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 16:49:10 +00:00
Chris Lattner
c51733c7b5 finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12221 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 16:45:53 +00:00
Chris Lattner
63a225050f Insert functions into the module promptly, not lazily. This fixes a bug 
I introduced last night.  Note to self: test the *correct* tree...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12220 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 16:14:19 +00:00
Chris Lattner
802b5ab844 Implement test/Regression/Assembler/2004-03-07-FunctionAddressAlignment.llx 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12218 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:17:35 +00:00
Chris Lattner
3c6d4b4f81 New testcase for folding in some important situations. The first two 
come up a lot in the code generated by the C++ front-end for pointers
to member functions.  See PR166.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12217 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:17:15 +00:00
Chris Lattner
2c56b55cf0 Remove Module::mutateConstantPointerRef, which is now thankfully dead! 
This is one small step towards the complete obliteration of
ConstantPointerRef's entirely!! Woot!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12216 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:16:10 +00:00
Chris Lattner
807a7be38b Remove Module::mutateConstantPointerRef, which is now thankfully dead! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12215 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:15:33 +00:00
Chris Lattner
2296ec0ce9 Eliminate nightmarish API 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12214 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:11:10 +00:00
Chris Lattner
e45a76c85b remove *THANKFULLY* dead method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12213 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:10:32 +00:00
Chris Lattner
bc2075977c Eliminate a REALLY HORRIBLE API: mutateReferences, which is gross gross gross. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12212 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 06:09:57 +00:00
Chris Lattner
4cfeac8f57 New testcase for PR269 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12211 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 05:35:12 +00:00
Chris Lattner
eacf92759d Bug fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12210 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 04:55:45 +00:00
Chris Lattner
342c9185af Testcase that crashes the C front-end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12209 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 04:41:32 +00:00
Chris Lattner
d84d3501c6 Fix a bug handling globals that are constants, but are still external 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12208 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 03:52:24 +00:00
Chris Lattner
9b3c702614 Avoid allocating special registers a bit more robustly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12207 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 03:48:07 +00:00
Chris Lattner
e0fa368f22 New code-quality testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12205 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 02:12:36 +00:00
Chris Lattner
7dee5daf85 Implement folding explicit load instructions into binary operations. For a 
testcase like this:

int %test(int* %P, int %A) {
        %Pv = load int* %P
        %B = add int %A, %Pv
        ret int %B
}

We now generate:
test:
        mov %ECX, DWORD PTR [%ESP + 4]
        mov %EAX, DWORD PTR [%ESP + 8]
        add %EAX, DWORD PTR [%ECX]
        ret

Instead of:
test:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %ECX, DWORD PTR [%ESP + 8]
        mov %EAX, DWORD PTR [%EAX]
        add %EAX, %ECX
        ret

... saving one instruction, and often a register.  Note that there are a lot
of other instructions that could use this, but they aren't handled.  I'm not
really interested in adding them, but mul/div and all of the FP instructions
could be supported as well if someone wanted to add them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12204 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 01:58:35 +00:00
Chris Lattner
721d2d4a6e Rearrange and refactor some code. No functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12203 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 01:18:36 +00:00
Chris Lattner
9440db8866 Implement ArgumentPromotion/aggregate-promote.ll 
This allows pointers to aggregate objects, whose elements are only read, to
be promoted and passed in by element instead of by reference.  This can
enable a LOT of subsequent optimizations in the caller function.

It's worth pointing out that this stuff happens a LOT of C++ programs, because
objects in templates are generally passed around by reference.  When these
templates are instantiated on small aggregate or scalar types, however, it is
more efficient to pass them in by value than by reference.

This transformation triggers most on C++ codes (e.g. 334 times on eon), but
does happen on C codes as well.  For example, on mesa it triggers 72 times,
and on gcc it triggers 35 times.  this is amazingly good considering that
we are using 'basicaa' so far.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12202 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 01:04:36 +00:00
Chris Lattner
95481b1d06 New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12201 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-08 00:58:19 +00:00
Chris Lattner
86a734bd40 Implement: ArgumentPromotion/chained.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12200 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 22:52:53 +00:00
Chris Lattner
afa38575aa New testcase for missed case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12199 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 22:52:41 +00:00
Chris Lattner
7db5a6df78 Fix another minor bug, exposed by perlbmk 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12198 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 22:43:27 +00:00
Chris Lattner
c76d80342e Since 'load null' is undefined, we can make it do whatever we want. Returning 
a zero value is the most likely way to cause further simplification, so we do it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12197 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 22:16:24 +00:00
Chris Lattner
f8338c4375 Run the new pass in gccld now that it passes all tests 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12196 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 22:12:40 +00:00
Chris Lattner
7e6f5090af Fix a minor bug and turn debug output into, well, debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12195 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 21:54:50 +00:00
Chris Lattner
f0b6070272 Add prototype 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12194 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 21:30:08 +00:00
Chris Lattner
ed570a7dca New LLVM pass: argument promotion. This version only handles simple scalar 
variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12193 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 21:29:54 +00:00
Chris Lattner
b9f266a609 New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12192 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 21:28:54 +00:00
Alkis Evlogimenos
13d362f310 Add memory operand version of conditional move. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12190 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-07 03:19:11 +00:00
Alkis Evlogimenos
5ae00066c6 As I wrote in the docs, simple is the default spiller :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12189 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
499b2bad27 Add simple spiller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12188 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 22:38:29 +00:00
Alkis Evlogimenos
4e644dd2c2 The default register allocator is local not simple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12187 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 22:27:41 +00:00
Brian Gaeke
08f64c3321 Support return values of basic integer types. 
Emit RETL instruction to return instead of funny JMPL.
Fix indentation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12186 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:32:28 +00:00
Brian Gaeke
a8056fabeb Sort stanzas into Sparc V8 book page number order. 
Add RET, RETL.  Rename SAVE, RESTORE & JMPL for consistency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12185 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:32:13 +00:00
Brian Gaeke
bda4a3c61a Hack it so we do not try to allocate values to G0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12184 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:31:32 +00:00
Brian Gaeke
d69b3c58d3 Make prolog align stack properly. Make epilog not touch any registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12183 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:31:21 +00:00
Brian Gaeke
a8b00cafc4 Emit register names in lowercase, as required by the assembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12182 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 05:30:21 +00:00
Brian Gaeke
a98e051417 Teach getRegClassForType where to find FP registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12180 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-06 03:54:13 +00:00
Chris Lattner
deb8712b49 Fix a minor bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12169 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-03-05 22:04:07 +00:00