8fb74c6ee2
constant fold nasty constant expressions formed by llvm-gcc,
...
wrapping up PR3351.
llvm-svn: 92410
2010-01-02 01:22:23 +00:00
e36a6b3e44
Correctly pass VTT parameters to constructors and destructors. The VTTs aren't yet used in the ctors/dtors, but that will follow.
...
llvm-svn: 92409
2010-01-02 01:01:18 +00:00
2e4be2c340
remove the instcombine transformations that are inserting nasty
...
pointer to int casts that confuse later optimizations. See PR3351
for details.
This improves but doesn't complete fix 483.xalancbmk because llvm-gcc
does this xform in GCC's "fold" routine as well. Clang++ will do
better I guess.
llvm-svn: 92408
2010-01-02 00:31:05 +00:00
909c71c96a
allow this to work on linux hosts.
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llvm-svn: 92407
2010-01-02 00:22:15 +00:00
1eea3b0ada
Teach codegen to handle:
...
(X != null) | (Y != null) --> (X|Y) != 0
(X == null) & (Y == null) --> (X|Y) == 0
so that instcombine can stop doing this for pointers. This is part of PR3351,
which is a case where instcombine doing this for pointers (inserting ptrtoint)
is pessimizing code.
llvm-svn: 92406
2010-01-02 00:00:03 +00:00
6eef072eb6
rename file.
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llvm-svn: 92405
2010-01-01 23:55:04 +00:00
24576a5cf3
whitespace cleanup
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llvm-svn: 92404
2010-01-01 23:37:34 +00:00
faf1337acb
add a simple instcombine xform, simplify another one to use hasAllZeroIndices()
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instead of hand rolling a loop.
llvm-svn: 92403
2010-01-01 23:09:08 +00:00
30c0a2833d
generalize the pointer difference optimization to handle
...
a constantexpr gep on the 'base' side of the expression.
This completes comment #4 in PR3351, which comes from
483.xalancbmk.
llvm-svn: 92402
2010-01-01 22:42:29 +00:00
4394f71752
teach instcombine to optimize pointer difference idioms involving constant
...
expressions. This is a step towards comment #4 in PR3351.
llvm-svn: 92401
2010-01-01 22:29:12 +00:00
9d4c5414bb
use 'match' to simplify some code.
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llvm-svn: 92400
2010-01-01 22:12:03 +00:00
27da15ba8e
Move a few more functions away from CGCXX and to CGClass and CGExprCXX.
...
llvm-svn: 92399
2010-01-01 20:29:01 +00:00
25c87e9cf9
implement the transform requested in PR5284
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llvm-svn: 92398
2010-01-01 18:34:40 +00:00
4f2486353a
Make sure that the search for visible declarations looks into the semantic parents of out-of-line function contexts
...
llvm-svn: 92397
2010-01-01 17:44:25 +00:00
3f8f44757f
Fix typo test RUN lines
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llvm-svn: 92396
2010-01-01 17:23:17 +00:00
5c35d2f6a4
Fix a warning on gcc 4.4.
...
SelectionDAGBuilder.cpp:4294: warning: suggest explicit braces to avoid
ambiguous ‘else’
llvm-svn: 92395
2010-01-01 04:41:36 +00:00
2abe1b70ac
Trailing whitespace, 80-col violations.
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llvm-svn: 92394
2010-01-01 04:41:22 +00:00
8a52b77523
Minor simplifactions.
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llvm-svn: 92393
2010-01-01 04:41:10 +00:00
9b0afc36a8
Typo.
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llvm-svn: 92392
2010-01-01 04:40:54 +00:00
c4f17987b6
Make CheckForSuperfluousOptions handle list form of 'switch_on' correctly.
...
llvm-svn: 92391
2010-01-01 03:51:02 +00:00
8711c8dbcf
Minor simplifications.
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llvm-svn: 92390
2010-01-01 03:50:51 +00:00
554c054777
Better error message.
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llvm-svn: 92389
2010-01-01 03:50:34 +00:00
39f18e545e
Teach codegen to lower llvm.powi to an efficient (but not optimal)
...
multiply sequence when the power is a constant integer. Before, our
codegen for std::pow(.., int) always turned into a libcall, which was
really inefficient.
This should also make many gfortran programs happier I'd imagine.
llvm-svn: 92388
2010-01-01 03:32:16 +00:00
5967840a5f
Make this more likely to generate a libcall.
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llvm-svn: 92387
2010-01-01 03:26:51 +00:00
9d44fdb397
Fix last patch, catch of reference to non-pointer.
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llvm-svn: 92386
2010-01-01 03:20:32 +00:00
5ee041873b
Fix catching a reference to a pointer.
...
llvm-svn: 92385
2010-01-01 02:51:52 +00:00
ee1f861d81
add missing line.
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llvm-svn: 92384
2010-01-01 01:54:08 +00:00
8330daf733
add a few trivial instcombines for llvm.powi.
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llvm-svn: 92383
2010-01-01 01:52:15 +00:00
71cf7c256f
update this. To take the next step, llvm.powi should be generalized to work
...
on integers as well and codegen should lower them to branch trees.
llvm-svn: 92382
2010-01-01 01:29:26 +00:00
0c59ac3f41
When factoring multiply expressions across adds, factor both
...
positive and negative forms of constants together. This
allows us to compile:
int foo(int x, int y) {
return (x-y) + (x-y) + (x-y);
}
into:
_foo: ## @foo
subl %esi, %edi
leal (%rdi,%rdi,2), %eax
ret
instead of (where the 3 and -3 were not factored):
_foo:
imull $-3, 8(%esp), %ecx
imull $3, 4(%esp), %eax
addl %ecx, %eax
ret
this started out as:
movl 12(%ebp), %ecx
imull $3, 8(%ebp), %eax
subl %ecx, %eax
subl %ecx, %eax
subl %ecx, %eax
ret
This comes from PR5359.
llvm-svn: 92381
2010-01-01 01:13:15 +00:00
2f03e64094
test case we alredy get right.
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llvm-svn: 92380
2010-01-01 00:50:00 +00:00
2536398a5d
When typo correction for an id-expression finds a type (or Objective-C
...
class), provide a suggestion for the type or class found. However,
since we can't recover properly in this case, don't provide a fix-it
hint. Example:
test/FixIt/typo.m:8:3: error: use of undeclared identifier 'NSstring';
did you
mean 'NSString'?
NSstring *str = @"A string";
...
^
1 diagnostic generated.
llvm-svn: 92379
2010-01-01 00:15:04 +00:00
504b7f8cc4
Remove old header.
...
llvm-svn: 92378
2010-01-01 00:04:49 +00:00
a552683fd4
clean up some comments.
...
llvm-svn: 92377
2010-01-01 00:04:26 +00:00
4e0299b657
Typo correction for C99 designated field initializers, e.g.,
...
test/FixIt/typo.c:19:4: error: field designator 'bunds' does not refer to any
field in type 'struct Window'; did you mean 'bounds'?
.bunds.
^~~~~
bounds
llvm-svn: 92376
2010-01-01 00:03:05 +00:00
17229a7cb8
switch from std::map to DenseMap for rank data structures.
...
llvm-svn: 92375
2010-01-01 00:01:34 +00:00
2fdca4b720
Remove derelict serialization code.
...
llvm-svn: 92374
2009-12-31 23:40:17 +00:00
fed3397654
reuse negates where possible instead of always creating them from scratch.
...
This allows us to optimize test12 into:
define i32 @test12(i32 %X) {
%factor = mul i32 %X, -3 ; <i32> [#uses=1]
%Z = add i32 %factor, 6 ; <i32> [#uses=1]
ret i32 %Z
}
instead of:
define i32 @test12(i32 %X) {
%Y = sub i32 6, %X ; <i32> [#uses=1]
%C = sub i32 %Y, %X ; <i32> [#uses=1]
%Z = sub i32 %C, %X ; <i32> [#uses=1]
ret i32 %Z
}
llvm-svn: 92373
2009-12-31 20:34:32 +00:00
60c2ca743d
we don't need a smallptrset to detect duplicates, the values are
...
sorted, so we can just do a linear scan.
llvm-svn: 92372
2009-12-31 19:49:01 +00:00
2d21394190
If the key function of a record is inline, then the RTTI data should have weak_odr linkage.
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llvm-svn: 92371
2009-12-31 19:36:25 +00:00
1d8979422a
make reassociate more careful about not leaving around dead mul's
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llvm-svn: 92370
2009-12-31 19:34:45 +00:00
ed18917665
remove debug
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llvm-svn: 92369
2009-12-31 19:25:19 +00:00
60b71b5c4d
teach reassociate to factor x+x+x -> x*3. While I'm at it,
...
fix RemoveDeadBinaryOp to actually do something.
llvm-svn: 92368
2009-12-31 19:24:52 +00:00
0c9dd8476f
It's OK for a return type to be incomplete if it's being defined.
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llvm-svn: 92367
2009-12-31 18:54:35 +00:00
38abecbad0
change reassociate to use SmallVector for its key datastructures
...
instead of std::vector.
llvm-svn: 92366
2009-12-31 18:40:32 +00:00
e60365b7b5
Make sure that an overriding return type is complete before checking if it's covariant. Fixes PR5920.
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llvm-svn: 92365
2009-12-31 18:34:24 +00:00
ac61550504
change an if to an assert, fix comment.
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llvm-svn: 92364
2009-12-31 18:18:46 +00:00
177140ad12
move the rest of the add optimization code out to OptimizeAdd,
...
improve some comments, simplify a bit of code.
llvm-svn: 92363
2009-12-31 18:17:13 +00:00
ba1f36aa99
factor statistic updating better.
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llvm-svn: 92362
2009-12-31 17:51:05 +00:00
bc7def9850
Remove rtti.cpp, it's very fragile and has been marked XFAIL for a while now. Between rtti-layout.cpp and rtti-linkage.cpp, RTTI testing should be covered.
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llvm-svn: 92361
2009-12-31 17:44:32 +00:00
Chris Lattner