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Author SHA1 Message Date
Chris Lattner
525635b764 Add support for representing edge counts 
llvm-svn: 12228
 2004-03-08 18:19:37 +00:00
Chris Lattner
6183fae972 Add edge profiling support to the runtime library 
llvm-svn: 12227
 2004-03-08 18:04:31 +00:00
Misha Brukman
abfc80d0fa Fix link to license: point to current version in CVS. 
llvm-svn: 12226
 2004-03-08 17:59:31 +00:00
Chris Lattner
01062fb636 Initial support for edge profiling 
llvm-svn: 12225
 2004-03-08 17:54:34 +00:00
Chris Lattner
d40842737b Split utility functions out of BlockProfiling.cpp 
llvm-svn: 12224
 2004-03-08 17:06:13 +00:00
Chris Lattner
28d0798a68 Remove the comment "Constants must always have an initial value.", which 
is incorrect.  Fix some formatting nastiness.

llvm-svn: 12223
 2004-03-08 16:49:10 +00:00
Chris Lattner
41c4dc98a7 finegrainify namespacification 
llvm-svn: 12221
 2004-03-08 16:45:53 +00:00
Chris Lattner
e44cc1372e Insert functions into the module promptly, not lazily. This fixes a bug 
I introduced last night.  Note to self: test the *correct* tree...

llvm-svn: 12220
 2004-03-08 16:14:19 +00:00
Chris Lattner
38c2e1d1df Implement test/Regression/Assembler/2004-03-07-FunctionAddressAlignment.llx 
llvm-svn: 12218
 2004-03-08 06:17:35 +00:00
Chris Lattner
cf72011426 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.

llvm-svn: 12217
 2004-03-08 06:17:15 +00:00
Chris Lattner
23980d3a7c Remove Module::mutateConstantPointerRef, which is now thankfully dead! 
This is one small step towards the complete obliteration of
ConstantPointerRef's entirely!! Woot!

llvm-svn: 12216
 2004-03-08 06:16:10 +00:00
Chris Lattner
164ebd3be3 Remove Module::mutateConstantPointerRef, which is now thankfully dead! 
llvm-svn: 12215
 2004-03-08 06:15:33 +00:00
Chris Lattner
aa5d8cb72f Eliminate nightmarish API 
llvm-svn: 12214
 2004-03-08 06:11:10 +00:00
Chris Lattner
db6e86b1ed remove *THANKFULLY* dead method 
llvm-svn: 12213
 2004-03-08 06:10:32 +00:00
Chris Lattner
df5ebdc8b1 Eliminate a REALLY HORRIBLE API: mutateReferences, which is gross gross gross. 
llvm-svn: 12212
 2004-03-08 06:09:57 +00:00
Chris Lattner
1ecf76aab7 New testcase for PR269 
llvm-svn: 12211
 2004-03-08 05:35:12 +00:00
Chris Lattner
74d74316fe Bug fixed 
llvm-svn: 12210
 2004-03-08 04:55:45 +00:00
Chris Lattner
66f3cfa109 Testcase that crashes the C front-end. 
llvm-svn: 12209
 2004-03-08 04:41:32 +00:00
Chris Lattner
1ae4150e31 Fix a bug handling globals that are constants, but are still external 
llvm-svn: 12208
 2004-03-08 03:52:24 +00:00
Chris Lattner
a7180252e6 Avoid allocating special registers a bit more robustly 
llvm-svn: 12207
 2004-03-08 03:48:07 +00:00
Chris Lattner
8cd89d333c New code-quality testcase. 
llvm-svn: 12205
 2004-03-08 02:12:36 +00:00
Chris Lattner
a55628694a 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.

llvm-svn: 12204
 2004-03-08 01:58:35 +00:00
Chris Lattner
9a9b1c4822 Rearrange and refactor some code. No functionality changes. 
llvm-svn: 12203
 2004-03-08 01:18:36 +00:00
Chris Lattner
933f605592 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.

llvm-svn: 12202
 2004-03-08 01:04:36 +00:00
Chris Lattner
2340d903fa New testcase 
llvm-svn: 12201
 2004-03-08 00:58:19 +00:00
Chris Lattner
ebebe8f4a0 Implement: ArgumentPromotion/chained.ll 
llvm-svn: 12200
 2004-03-07 22:52:53 +00:00
Chris Lattner
5a2ee65f6c New testcase for missed case 
llvm-svn: 12199
 2004-03-07 22:52:41 +00:00
Chris Lattner
8494ba277f Fix another minor bug, exposed by perlbmk 
llvm-svn: 12198
 2004-03-07 22:43:27 +00:00
Chris Lattner
ca3b90f308 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.

llvm-svn: 12197
 2004-03-07 22:16:24 +00:00
Chris Lattner
0179360703 Run the new pass in gccld now that it passes all tests 
llvm-svn: 12196
 2004-03-07 22:12:40 +00:00
Chris Lattner
45cf084497 Fix a minor bug and turn debug output into, well, debug output. 
llvm-svn: 12195
 2004-03-07 21:54:50 +00:00
Chris Lattner
db27e586bf Add prototype 
llvm-svn: 12194
 2004-03-07 21:30:08 +00:00
Chris Lattner
4415950211 New LLVM pass: argument promotion. This version only handles simple scalar 
variables.

llvm-svn: 12193
 2004-03-07 21:29:54 +00:00
Chris Lattner
f4fa087828 New testcase 
llvm-svn: 12192
 2004-03-07 21:28:54 +00:00
Alkis Evlogimenos
65649a50e9 Add memory operand version of conditional move. 
llvm-svn: 12190
 2004-03-07 03:19:11 +00:00
Alkis Evlogimenos
02e8f14c6a As I wrote in the docs, simple is the default spiller :-) 
llvm-svn: 12189
 2004-03-06 23:08:44 +00:00
Alkis Evlogimenos
467364b706 Add simple spiller. 
llvm-svn: 12188
 2004-03-06 22:38:29 +00:00
Alkis Evlogimenos
224e6bdd1d The default register allocator is local not simple. 
llvm-svn: 12187
 2004-03-06 22:27:41 +00:00
Brian Gaeke
4bb4ec2388 Support return values of basic integer types. 
Emit RETL instruction to return instead of funny JMPL.
Fix indentation.

llvm-svn: 12186
 2004-03-06 05:32:28 +00:00
Brian Gaeke
855518207c Sort stanzas into Sparc V8 book page number order. 
Add RET, RETL.  Rename SAVE, RESTORE & JMPL for consistency.

llvm-svn: 12185
 2004-03-06 05:32:13 +00:00
Brian Gaeke
813f0d8512 Hack it so we do not try to allocate values to G0. 
llvm-svn: 12184
 2004-03-06 05:31:32 +00:00
Brian Gaeke
a265c3c4df Make prolog align stack properly. Make epilog not touch any registers. 
llvm-svn: 12183
 2004-03-06 05:31:21 +00:00
Brian Gaeke
b4258231ca Emit register names in lowercase, as required by the assembler. 
llvm-svn: 12182
 2004-03-06 05:30:21 +00:00
Brian Gaeke
13f3e2f254 Teach getRegClassForType where to find FP registers 
llvm-svn: 12180
 2004-03-06 03:54:13 +00:00
Chris Lattner
5a9cae47a4 Fix a minor bug 
llvm-svn: 12169
 2004-03-05 22:04:07 +00:00
Misha Brukman
75729872be Unbreak the build on Sparc. 
llvm-svn: 12161
 2004-03-05 20:04:40 +00:00
Brian Gaeke
689af03601 Asm output is looking a lot better; not correct for all operands yet though. 
llvm-svn: 12143
 2004-03-05 08:39:09 +00:00
Chris Lattner
f21e7a75d6 Fix a bug in a previous checkin that broke 175.vpr 
llvm-svn: 12128
 2004-03-04 21:36:57 +00:00
Chris Lattner
c885697daa Add support for strto* and v*printf 
llvm-svn: 12127
 2004-03-04 21:03:54 +00:00
Chris Lattner
48b0fd7101 Add non-crappy support for varargs 
llvm-svn: 12126
 2004-03-04 20:33:47 +00:00