a461e6d124
Disable some debug prints.
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llvm-svn: 59174
2008-11-12 21:52:46 +00:00
9a156e5c1e
Some additions to tryEvaluate I've had sitting around for a while.
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This pushes it a lot closer to being able to deal with most of the stuff
CodeGen's constant expression evaluator knows how to deal with. This
also fixes PR3003.
The test could possibly use some improvement, but this'll work for now.
Test 6 is inspired by PR3003; the other tests are mostly just designed
to exercise the new code. The reason for the funny structure of the
tests is that type fixing for arrays inside of structs is the only place
in Sema that calls tryEvaluate, at least for the moment.
llvm-svn: 59125
2008-11-12 09:44:48 +00:00
fac05aeae5
fix a crash analyzing constants in 176.gcc/expr.c with my next patch. It was
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crashing because we errors are ignored in subexpressions that are not evaluated,
but we still evaluate the result of parents. This would cause an assertion
because the erroneous subexpr didn't have its result value set to the right type.
llvm-svn: 59110
2008-11-12 07:43:42 +00:00
aa3f951efc
Teach the aggressive constant folder to fold X && 0 -> 0 and X || 1 -> 1
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llvm-svn: 59105
2008-11-12 07:04:29 +00:00
6f28289aca
Introduce a single AST node SizeOfAlignOfExpr for all sizeof and alignof expressions, both of values and types.
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llvm-svn: 59057
2008-11-11 17:56:53 +00:00
d7be95d60a
PR2919: __builtin_types_compatible_p strips CRV qualifiers.
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llvm-svn: 58079
2008-10-24 08:07:57 +00:00
c3d79cf6b3
Teach tryEvaluate that fabs, copysign, and unary +/- are constants for
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floats.
- With testcase, which also has some other things GCC folds but we
don't commented out in it.
llvm-svn: 57624
2008-10-16 03:51:50 +00:00
1be9f88a2f
Fix test suite regression, getFloatTypeSemantics shouldn't be called
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on non-float types.
llvm-svn: 57477
2008-10-14 05:41:12 +00:00
c48814bc98
Adjust calls to APFloat conversion for new interface.
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llvm-svn: 57332
2008-10-09 23:02:32 +00:00
2c091b1ead
ExprConstant should not abort when it sees a pointer constant that isn't.
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llvm-svn: 57162
2008-10-06 07:20:11 +00:00
cb13691a62
Add a Expr::isEvaluatable method, eliminate isBuiltinConstantExpr
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which is checking for something that can be inconsistent with
what we can constant fold.
llvm-svn: 57159
2008-10-06 06:49:02 +00:00
86ee286b09
Move folding of __builtin_classify_type out of the CallExpr
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interface into the constant folding interface.
llvm-svn: 57158
2008-10-06 06:40:35 +00:00
0b7282eafc
Move handling of __builtin_nan("") out of CGBuiltin.cpp into ExprConstant.cpp
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llvm-svn: 57157
2008-10-06 06:31:58 +00:00
37346e081c
Teach FloatExprEvaluator to evaluate __builtin_huge_val and inf.
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llvm-svn: 57154
2008-10-06 05:53:16 +00:00
4deaa4ea24
Add a comment that describes tryEvaluate. Make tryEvaluate fold
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__builtin_constant_p properly, and add some scaffolding for
FloatExprEvaluator to eventually handle huge_val and inf.
llvm-svn: 57152
2008-10-06 05:28:25 +00:00
24c0154b77
Initial implementation of floats in Expr::tryEvaluate; this doesn't
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implement some things, like unary operators and casts, but it's enough
to fix PR2703 as filed.
llvm-svn: 55155
2008-08-22 00:06:13 +00:00
3bab3d21f9
Add ExplicitCastExpr to replace the current CastExpr, and have ImplicitCastExpr and ExplicitCastExpr derive from a common base class (CastExpr):
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Expr
-> CastExpr
-> ExplicitCastExpr
-> ImplicitCastExpr
llvm-svn: 54955
2008-08-18 23:01:59 +00:00
56fdb6ae69
More #include cleaning
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- Kill unnecessary #includes in .cpp files. This is an automatic
sweep so some things removed are actually used, but happen to be
included by a previous header. I tried to get rid of the obvious
examples and this was the easiest way to trim the #includes in one
fell swoop.
- We now return to regularly scheduled development.
llvm-svn: 54632
2008-08-11 06:23:49 +00:00
d361a7df78
Remove the old evaluator code.
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llvm-svn: 54615
2008-08-10 17:03:01 +00:00
5cf85cc977
Turn on the new constant expression evaluator; it isn't
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anywhere near complete, but I don't know of any issues, and it can
handle enough to allow removing the I-C-E pointer cast hack.
llvm-svn: 54597
2008-08-09 22:21:56 +00:00
bd84059cdb
Minor tweak plus a couple of FIXMEs.
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llvm-svn: 54119
2008-07-27 05:46:18 +00:00
477c4be1e9
expand casts to handle what isIntegerConstantExpr handles.
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Casts from pointers remain a problem. :)
llvm-svn: 53501
2008-07-12 01:15:53 +00:00
7174bf3722
Add support for __builtin_type_compatible_p, enums, etc.
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llvm-svn: 53500
2008-07-12 00:38:25 +00:00
9941570ce9
start remembering diagnostics for various cases, add some missing
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code. Switch to Eli's getIntWidth method.
llvm-svn: 53499
2008-07-12 00:14:42 +00:00
cdf34e7668
Provide a structure for passing down 'is evaluated' and passing up
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diagnosic+loc info for i-c-e evaluation.
llvm-svn: 53490
2008-07-11 22:52:41 +00:00
f09ad16cfc
simplify some code a bit.
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llvm-svn: 53477
2008-07-11 22:15:16 +00:00
f8d7f72956
share code between sizeof(expr) and sizeof(type)
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llvm-svn: 53475
2008-07-11 21:24:13 +00:00
b062dcc17b
implement support for __extension__, make sure the result of a
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comparison has the right width.
llvm-svn: 53469
2008-07-11 19:29:32 +00:00
ae8cc15977
add a new getIntTypeSizeInBits method.
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llvm-svn: 53468
2008-07-11 19:24:49 +00:00
2bd2e028ca
rename "SInt" methods to "Int" in APValue.
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llvm-svn: 53467
2008-07-11 19:19:21 +00:00
e13042c04f
make the new evaluator avoid conversions APValue<->APSInt in some cases.
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Add some accessors to APValue.
llvm-svn: 53465
2008-07-11 19:10:17 +00:00
05706e8859
rearrange some code, no functionality changes.
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llvm-svn: 53463
2008-07-11 18:11:29 +00:00
0166481455
Fix small bug. The evaluator now works well enough to pass all tests
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llvm-svn: 53238
2008-07-08 16:49:00 +00:00
4a3585b7c0
More constant expression work.
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llvm-svn: 53235
2008-07-08 15:34:11 +00:00
9c18165448
Move out some methods.
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llvm-svn: 53234
2008-07-08 14:35:21 +00:00
b5ad021cd7
More work.
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llvm-svn: 53233
2008-07-08 14:30:00 +00:00
1904f44757
Compilation fix
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llvm-svn: 53222
2008-07-08 07:23:12 +00:00
374b93df76
Port more of Eli's evaluator over. This makes the int evaluator handle binary and unary operators.
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llvm-svn: 53221
2008-07-08 05:49:43 +00:00
0a1707c6ba
Commit beginnings of int evaluator. Currently not used.
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llvm-svn: 53219
2008-07-08 05:13:58 +00:00
7a241baf2f
Shuffle things around in preparation for integrating Eli's constant evaluator.
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llvm-svn: 53074
2008-07-03 04:20:39 +00:00
Daniel Dunbar