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48 commits

Author SHA1 Message Date
David Nadlinger
c02b38fe9a Removed LLVM 3.0 compatibility code. 
There might be still some pieces left here and there, and
there is certainly code that could be rewritten in a nicer
way with the 3.0 requirement out of the picture.
 2013-05-31 20:48:38 +02:00
David Nadlinger
0a376b9c71 Avoid unnecessary memset when allocating array literals. 
This completes the merge of pull request #294. Thanks a lot to
Chris Holdsworth who originally wrote the patch!

GitHub: Fixes #294.
GitHub: Fixes #141.
 2013-05-04 21:20:09 +02:00
kai
1e4a8fffc2 Remove DMDV1 and DMDV2. 2013-03-06 10:20:24 +01:00
kai
a11459bc31 "The Great Renaming" continues. 
More changes to match the renamed files of LLVM 3.3.
 2013-01-06 17:17:30 +01:00
kai
272e7b7a55 Follow "The Great Renaming" in LLVM 3.3 
This time VMCore was renamed to IR. Several top level include
files were moved to new subfolder IR.
 2013-01-03 08:52:23 +01:00
Evangelos Foutras
984207e348 Fix llvm/IRBuilder.h include when using LLVM 3.2 2012-12-25 04:58:25 +02:00
David Nadlinger
8880645bf6 Typo fix. 
Turns out I still had USE_METADATA=OFF in the CMake cache when
testing the previous commit.
 2012-12-24 02:22:40 +01:00
David Nadlinger
a0971b7c4b Use more portable integer log from LLVM. 2012-12-24 02:05:06 +01:00
David Nadlinger
8094e3c21b dgc2stack: Added size limit for stack promotion. 2012-12-23 21:20:55 +01:00
kai
5f37ae30cf LLVM 3.3: class Attributes is renamed to Attribute. 
Some other renamings took place in "llvm/Attributes.h" but only this causes
compile errors in LDC.
Also uses new location of "llvm/IRBuilder.h".
 2012-12-21 17:32:17 +01:00
David Nadlinger
7be9c5c5c7 dgc2stack: LLVM 3.2 compatibility. 2012-12-20 23:52:25 +01:00
David Nadlinger
8913898b5e dgc2stack: Demote LLVM "tail" calls when promoting an allocation. 
Referencing alloca'd memory in tail calls is invalid IR. This was
not caught by the verifier, but produced misoptimizations due to
wrong alias analysis results.
 2012-12-20 23:52:25 +01:00
David Nadlinger
bc541a4421 Added D2/druntime support to gc2stack. 2012-12-20 23:52:25 +01:00
David Nadlinger
ebbbfdd4ac Metadata/gc2stack compile fixes to accomodate LLVM API changes. 2012-12-20 23:52:24 +01:00
David Nadlinger
1bb14c45d2 Removed trailing whitespace. 2012-12-16 17:19:15 +01:00
David Nadlinger
9458911839 Added LLVM-style license headers to all our files. 2012-12-16 17:19:14 +01:00
Alexey Prokhin
4d7a6eda23 Different fixes for d2 2010-10-07 22:35:32 +04:00
Moritz Warning
c151d37365 fixes #434 :: add llvm 2.8 support 2010-10-23 13:38:26 +02:00
Benjamin Kramer
c220dcac05 IntegerType is now contextifed. 
Requires llvm >= 78969. resistor says this will be the last context API change :)
 2009-08-14 00:39:18 +02:00
Benjamin Kramer
0a1d467ac7 getTrue/getFalse were moved back to ConstantInt 
Requires LLVM >= r77685
 2009-07-31 19:11:07 +02:00
Tomas Lindquist Olsen
d5d3ecdb05 Added back option to disable metadata generation and users. Set USE_METADATA to OFF in ccmake. 2009-07-31 11:28:31 +02:00
Benjamin Kramer
e34f07505b use the new NamedMDNode class 
this will need a LLVM >= r77619
 2009-07-30 20:54:03 +02:00
Benjamin Kramer
66101517d7 LLVMContext changes up to r77366 2009-07-30 15:25:10 +02:00
Benjamin Kramer
3f0a0686a8 Value::getNameStart and Value::getNameLength were removed 2009-07-23 20:34:35 +02:00
Benjamin Kramer
27a9f93767 DOUT is deprecated, use DEBUG(errs()) instead 2009-07-27 11:44:01 +02:00
Benjamin Kramer
a398cd39b3 ConstantInt::get{True,False} moved to LLVMContext 
Non-breaking build fix for LLVM r76533. Also fixes a context related
bug in GarbageCollect2Stack.
 2009-07-21 13:11:39 +02:00
Benjamin Kramer
d7049de966 More factory methods moved to LLVMContext 2009-07-15 18:09:41 +02:00
Benjamin Kramer
076ef17159 Build fix for LLVM r75546 and r75559 2009-07-14 02:19:05 +02:00
Benjamin Kramer
8576788245 Get rid of USE_METADATA 2009-07-11 14:19:21 +02:00
Frits van Bommel
1f7a2a7884 Teach stack promotion to walk the CFG when a potential reuse of an allocation 
is found to see if it can actually happen instead of just assuming it will.

This allows it to catch cases like
{{{
int i;
Foo f;
while (cond(i))
    f = new Foo(i++);
return f.value;
}}}
where it previously wouldn't because a phi using the allocation would appear in
the condition block to propagate it to the use after the loop.
 2009-06-11 02:04:44 +02:00
Frits van Bommel
9ba306a42f Oops, I accidentally pushed r1486 before the last touches were committed. 2009-06-08 13:52:45 +02:00
Frits van Bommel
b999f679a7 Teach -dgc2stack to promote GC allocations in simple loops to stack 
allocations too. (A "simple" loop is one where the allocation isn't used in a
subsequent iteration)

This also means it's no longer necessary to run this pass multiple times.
Running it once after inlining should now catch all cases.
 2009-06-08 12:35:55 +02:00
Frits van Bommel
c8b10643f9 Add some missing returns. 2009-05-30 23:48:22 +02:00
Frits van Bommel
a24a2201f1 Teach -dgc2stack to preserve the call graph. This should allow for more 
efficient execution by the pass manager.
 2009-05-28 02:14:01 +02:00
Benjamin Kramer
46b200a4ed silence a gcc warning 2009-05-16 13:50:44 +02:00
Tomas Lindquist Olsen
f5d635dfc7 Adds explicit alignment information for alloca instructions in general, there's a few cases that still needs to be looked at but this should catch the majority. Fixes ticket #293 . 2009-05-14 13:26:40 +02:00
Frits van Bommel
e4e07baf87 Re-enable consistency check for fixed LLVM versions. 2009-05-11 15:48:33 +02:00
Frits van Bommel
49a2924823 Update for metadata changes in LLVM trunk. 2009-05-11 11:59:22 +02:00
Frits van Bommel
5b82f780f8 Allocate objects on the stack if they (a) don't have a destructor, and 
(b) don't override the delete operator (on top of the regular conditions for
stack allocation that also apply to arrays, structs, etc.).
The "no destructor" clause is not strictly necessary, but calling them at the
right time would be tricky to say the least; it would involve, among other
things, "manually" inserting a try-finally block around anything that might
throw exceptions not caught in the current function.

Note: objects with custom new operators are automatically ignored because they
don't use the regular allocation runtime call, so there's no need to pay special
attention to them.
 2009-05-09 00:50:15 +02:00
Frits van Bommel
adf1fd4d44 Work around an LLVM bug by not referring to globals from metadata. This was 
only used for consistency checking anyway.
For the LLVM bug, see http://llvm.org/PR4180 / http://llvm.org/PR4046
 2009-05-08 16:00:44 +02:00
Frits van Bommel
52c22c6c27 Stack-allocate zero-initialized arrays. 2009-05-06 20:27:48 +02:00
Frits van Bommel
ec573df5b2 Some refactoring 2009-05-06 15:58:15 +02:00
Frits van Bommel
c6b6d1874a Postpone (expensive) escape analysis until we're sure it's needed. 2009-05-06 14:11:37 +02:00
Frits van Bommel
f7e54dce10 Don't forget to update the control flow when deleting an invoke. 
Fixes #284.
 2009-05-04 12:08:30 +02:00
Frits van Bommel
fa79329102 Stack promotion for _d_newarrayvT. Array literals, concatenations (a ~ b) and 
such are eligible for stack-allocation now.
 2009-05-03 18:01:45 +02:00
Frits van Bommel
67fc0aca20 Remove some overly verbose debug output 2009-05-03 20:19:49 +02:00
Frits van Bommel
c831367b24 Factor out some constants into the header so producers and consumers of 
metadata stay in sync (and are more readable).
 2009-05-02 20:42:58 +02:00
Frits van Bommel
cff0f1f446 Implement another D-specific pass: -dgc2stack 
This one promotes GC allocations to stack memory when it can determine it's safe
to do so.
Not all GC calls are recognized yet (in fact only one *is* recognized for now).
Needs metadata, so disabled for LLVM versions that don't support it.
 2009-05-02 11:58:50 +02:00