]>
granicus.if.org Git - clang/log
Chandler Carruth [Tue, 29 Jun 2010 00:23:11 +0000 (00:23 +0000)]
Prefer llvm_unreachable(...) to assert(false && ...). This is important as
without it we might exit a non-void function without returning.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107106
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Chris Lattner [Tue, 29 Jun 2010 00:14:52 +0000 (00:14 +0000)]
add IR names to coerced arguments.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107105
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Chris Lattner [Tue, 29 Jun 2010 00:06:42 +0000 (00:06 +0000)]
make the argument passing stuff in the FCA case smarter still, by
avoiding making the FCA at all when the types exactly line up. For
example, before we made:
%struct.DeclGroup = type { i64, i64 }
define i64 @_Z3foo9DeclGroup(i64, i64) nounwind {
entry:
%D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=3]
%2 = insertvalue %struct.DeclGroup undef, i64 %0, 0 ; <%struct.DeclGroup> [#uses=1]
%3 = insertvalue %struct.DeclGroup %2, i64 %1, 1 ; <%struct.DeclGroup> [#uses=1]
store %struct.DeclGroup %3, %struct.DeclGroup* %D
%tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
%tmp1 = load i64* %tmp ; <i64> [#uses=1]
%tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
%tmp3 = load i64* %tmp2 ; <i64> [#uses=1]
%add = add nsw i64 %tmp1, %tmp3 ; <i64> [#uses=1]
ret i64 %add
}
... which has the pointless insertvalue, which fastisel hates, now we
make:
%struct.DeclGroup = type { i64, i64 }
define i64 @_Z3foo9DeclGroup(i64, i64) nounwind {
entry:
%D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=4]
%2 = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
store i64 %0, i64* %2
%3 = getelementptr %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
store i64 %1, i64* %3
%tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
%tmp1 = load i64* %tmp ; <i64> [#uses=1]
%tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
%tmp3 = load i64* %tmp2 ; <i64> [#uses=1]
%add = add nsw i64 %tmp1, %tmp3 ; <i64> [#uses=1]
ret i64 %add
}
This only kicks in when x86-64 abi lowering decides it likes us.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107104
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Craig Silverstein [Tue, 29 Jun 2010 00:02:17 +0000 (00:02 +0000)]
A few prettifications. Also renamed TraverseInitializer to
TraverseConstructorInitializer, to be a bit clearer.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107102
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Ted Kremenek [Mon, 28 Jun 2010 23:54:17 +0000 (23:54 +0000)]
Per Doug's suggestion, move check for invalid SourceLocation into
cxloc::translateSourceLocation() (thus causing all clients of this
function to have the same behavior).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107101
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Chris Lattner [Mon, 28 Jun 2010 23:44:11 +0000 (23:44 +0000)]
Change CGCall to handle the "coerce" case where the coerce-to type
is a FCA to pass each of the elements as individual scalars. This
produces code fast isel is less likely to reject and is easier on
the optimizers.
For example, before we would compile:
struct DeclGroup { long NumDecls; char * Y; };
char * foo(DeclGroup D) {
return D.NumDecls+D.Y;
}
to:
%struct.DeclGroup = type { i64, i64 }
define i64 @_Z3foo9DeclGroup(%struct.DeclGroup) nounwind {
entry:
%D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=3]
store %struct.DeclGroup %0, %struct.DeclGroup* %D, align 1
%tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
%tmp1 = load i64* %tmp ; <i64> [#uses=1]
%tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i64*> [#uses=1]
%tmp3 = load i64* %tmp2 ; <i64> [#uses=1]
%add = add nsw i64 %tmp1, %tmp3 ; <i64> [#uses=1]
ret i64 %add
}
Now we get:
%0 = type { i64, i64 }
%struct.DeclGroup = type { i64, i8* }
define i8* @_Z3foo9DeclGroup(i64, i64) nounwind {
entry:
%D = alloca %struct.DeclGroup, align 8 ; <%struct.DeclGroup*> [#uses=3]
%2 = insertvalue %0 undef, i64 %0, 0 ; <%0> [#uses=1]
%3 = insertvalue %0 %2, i64 %1, 1 ; <%0> [#uses=1]
%4 = bitcast %struct.DeclGroup* %D to %0* ; <%0*> [#uses=1]
store %0 %3, %0* %4, align 1
%tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i64*> [#uses=1]
%tmp1 = load i64* %tmp ; <i64> [#uses=1]
%tmp2 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 1 ; <i8**> [#uses=1]
%tmp3 = load i8** %tmp2 ; <i8*> [#uses=1]
%add.ptr = getelementptr inbounds i8* %tmp3, i64 %tmp1 ; <i8*> [#uses=1]
ret i8* %add.ptr
}
Elimination of the FCA inside the function is still-to-come.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107099
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Craig Silverstein [Mon, 28 Jun 2010 23:42:10 +0000 (23:42 +0000)]
Fix up ClassTemplateSpecializationDecl: For implicit instantiations
("set<int> x;"), we don't want to recurse at all, since the
instatiated class isn't written in the source code anywhere. (Note
the instatiated *type* -- set<int> -- is written, and will still get a
callback of TemplateSpecializationType). For explicit instantiations
("template set<int>;"), we do need a callback, since this is the only
callback that's made for this instantiation. We use
getTypeAsWritten() to distinguish.
We will still need to figure out how to handle template
specializations, which probably are still not quite correct.
Reviewed by chandlerc
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107098
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Chris Lattner [Mon, 28 Jun 2010 22:51:39 +0000 (22:51 +0000)]
make the trivial forms of CreateCoerced{Load|Store} trivial.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107091
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Argyrios Kyrtzidis [Mon, 28 Jun 2010 22:28:35 +0000 (22:28 +0000)]
Modify the way sub-statements are stored and retrieved from PCH.
Before this commit, sub-stmts were stored as encountered and when they were placed in the Stmts stack we had to know what index
each stmt operand has. This complicated supporting variable sub-stmts and sub-stmts that were contained in TypeSourceInfos, e.g.
x = sizeof(int[1]);
would crash PCH.
Now, sub-stmts are stored in reverse order, from last to first, so that when reading them, in order to get the next sub-stmt we just
need to pop the last stmt from the stack. This greatly simplified the way stmts are written and read (just use PCHWriter::AddStmt and
PCHReader::ReadStmt accordingly) and allowed variable stmt operands and TypeSourceInfo exprs.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107087
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Chris Lattner [Mon, 28 Jun 2010 21:59:07 +0000 (21:59 +0000)]
pass/return structs of char and short as i8/i16 to avoid
aweful through-memory coersion, just like we do for i32 now.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107078
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Chris Lattner [Mon, 28 Jun 2010 21:43:59 +0000 (21:43 +0000)]
more tidying up.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107076
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Ted Kremenek [Mon, 28 Jun 2010 20:44:49 +0000 (20:44 +0000)]
Remove state assertion.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107064
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Ted Kremenek [Mon, 28 Jun 2010 20:32:40 +0000 (20:32 +0000)]
Don't crash in InitializePreprocessor() when there is no valid PTHManager. Fixes <rdar://problem/
8098441 >.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107061
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Chris Lattner [Mon, 28 Jun 2010 20:05:43 +0000 (20:05 +0000)]
random acts of tidying.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107050
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Chris Lattner [Mon, 28 Jun 2010 19:56:59 +0000 (19:56 +0000)]
X86-64:
pass/return structs of float/int as float/i32 instead of double/i64
to make the code generated for ABI cleaner. Passing in the low part
of a double is the same as passing in a float.
For example, we now compile:
struct DeclGroup { float NumDecls; };
float foo(DeclGroup D);
void bar(DeclGroup *D) {
foo(*D);
}
into:
%struct.DeclGroup = type { float }
define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind {
entry:
%D.addr = alloca %struct.DeclGroup*, align 8 ; <%struct.DeclGroup**> [#uses=2]
%agg.tmp = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2]
store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
%tmp = load %struct.DeclGroup** %D.addr ; <%struct.DeclGroup*> [#uses=1]
%tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
%tmp2 = bitcast %struct.DeclGroup* %tmp to i8* ; <i8*> [#uses=1]
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
%coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <float*> [#uses=1]
%0 = load float* %coerce.dive, align 1 ; <float> [#uses=1]
%call = call float @_Z3foo9DeclGroup(float %0) ; <float> [#uses=0]
ret void
}
instead of:
%struct.DeclGroup = type { float }
define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind {
entry:
%D.addr = alloca %struct.DeclGroup*, align 8 ; <%struct.DeclGroup**> [#uses=2]
%agg.tmp = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2]
%tmp3 = alloca double ; <double*> [#uses=2]
store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
%tmp = load %struct.DeclGroup** %D.addr ; <%struct.DeclGroup*> [#uses=1]
%tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
%tmp2 = bitcast %struct.DeclGroup* %tmp to i8* ; <i8*> [#uses=1]
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
%coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <float*> [#uses=1]
%0 = bitcast double* %tmp3 to float* ; <float*> [#uses=1]
%1 = load float* %coerce.dive ; <float> [#uses=1]
store float %1, float* %0, align 1
%2 = load double* %tmp3 ; <double> [#uses=1]
%call = call float @_Z3foo9DeclGroup(double %2) ; <float> [#uses=0]
ret void
}
which is this machine code (at -O0):
__Z3barP9DeclGroup:
subq $24, %rsp
movq %rdi, 16(%rsp)
movq 16(%rsp), %rdi
leaq 8(%rsp), %rax
movl (%rdi), %ecx
movl %ecx, (%rax)
movss 8(%rsp), %xmm0
callq __Z3foo9DeclGroup
addq $24, %rsp
ret
vs this:
__Z3barP9DeclGroup:
subq $24, %rsp
movq %rdi, 16(%rsp)
movq 16(%rsp), %rdi
leaq 8(%rsp), %rax
movl (%rdi), %ecx
movl %ecx, (%rax)
movss 8(%rsp), %xmm0
movss %xmm0, (%rsp)
movsd (%rsp), %xmm0
callq __Z3foo9DeclGroup
addq $24, %rsp
ret
At -O3, it is the difference between this now:
__Z3barP9DeclGroup:
movss (%rdi), %xmm0
jmp __Z3foo9DeclGroup # TAILCALL
vs this before:
__Z3barP9DeclGroup:
movl (%rdi), %eax
movd %rax, %xmm0
jmp __Z3foo9DeclGroup # TAILCALL
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107048
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Fariborz Jahanian [Mon, 28 Jun 2010 19:42:10 +0000 (19:42 +0000)]
Minor refactorin of my last patch (radar
7860965 related).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107047
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Fariborz Jahanian [Mon, 28 Jun 2010 18:58:34 +0000 (18:58 +0000)]
Have __func__ and siblings point to block's implementation function
name. Fixes radar
7860965 .
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107044
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Chris Lattner [Mon, 28 Jun 2010 18:29:14 +0000 (18:29 +0000)]
tweak test to pass on windows
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107040
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Daniel Dunbar [Mon, 28 Jun 2010 17:43:18 +0000 (17:43 +0000)]
tests: Rewrite test to check intent instead of implementation.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107024
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Rafael Espindola [Mon, 28 Jun 2010 17:18:09 +0000 (17:18 +0000)]
Set the default arch based on the triple.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107021
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Chris Lattner [Mon, 28 Jun 2010 17:12:37 +0000 (17:12 +0000)]
Fix UnitTests/2004-02-02-NegativeZero.c, which regressed when
I broke negate of FP values.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107019
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Chris Lattner [Mon, 28 Jun 2010 17:11:58 +0000 (17:11 +0000)]
fix a silly fixme.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107018
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Dan Gohman [Mon, 28 Jun 2010 15:56:07 +0000 (15:56 +0000)]
llvm::errs() is non-buffered, so it doesn't need to be flushed.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107012
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Craig Silverstein [Mon, 28 Jun 2010 15:37:14 +0000 (15:37 +0000)]
Add support for traversing initializer lists (in constructors), which
we ignoring before. To give access to the names on the initializer,
which aren't a type or an expr or a decl, I've introduced a new
TraverseInitializer. By default, it just traverses on the expr that
the name is being initialized to.
Reviewed by chandlerc. Tested via clang's 'make test'.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107008
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Sebastian Redl [Mon, 28 Jun 2010 15:09:07 +0000 (15:09 +0000)]
Introduce Expr::Classify and Expr::ClassifyModifiable, which determine the classification of an expression under the C++0x taxology (value category). Reimplement isLvalue and isModifiableLvalue using these functions. No regressions in the test suite from this, and my rough performance check doesn't show any regressions either.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107007
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Argyrios Kyrtzidis [Mon, 28 Jun 2010 09:32:03 +0000 (09:32 +0000)]
Support CXXPseudoDestructorExpr for PCH.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106999
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Argyrios Kyrtzidis [Mon, 28 Jun 2010 09:31:56 +0000 (09:31 +0000)]
Support DependentScopeDeclRefExpr for PCH.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106998
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Argyrios Kyrtzidis [Mon, 28 Jun 2010 09:31:48 +0000 (09:31 +0000)]
Refactor PCH reading/writing of template arguments passed to expressions.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106997
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Argyrios Kyrtzidis [Mon, 28 Jun 2010 09:31:42 +0000 (09:31 +0000)]
Fix PCH emitting/reading for template arguments that contain expressions.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106996
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Argyrios Kyrtzidis [Mon, 28 Jun 2010 09:31:34 +0000 (09:31 +0000)]
Fix various bugs in recent commits for C++ PCH.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106995
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Chandler Carruth [Mon, 28 Jun 2010 08:39:25 +0000 (08:39 +0000)]
Partial fix for PR7267 based on comments by John McCall on an earlier patch.
This is more targeted, as it simply provides toggle actions for the parser to
turn access checking on and off. We then use these to suppress access checking
only while we parse the template-id (included scope specifier) of an explicit
instantiation and explicit specialization of a class template. The
specialization behavior is an extension, as it seems likely a defect that the
standard did not exempt them as it does explicit instantiations.
This allows the very common practice of specializing trait classes to work for
private, internal types. This doesn't address instantiating or specializing
function templates, although those apparently already partially work.
The naming and style for the Action layer isn't my favorite, comments and
suggestions would be appreciated there.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106993
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Jordy Rose [Mon, 28 Jun 2010 08:26:15 +0000 (08:26 +0000)]
Pointer comparisons (and pointer-pointer subtraction). Basically filling in SimpleSValuator::EvalBinOpLL().
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106992
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Chandler Carruth [Mon, 28 Jun 2010 00:30:51 +0000 (00:30 +0000)]
Suppress diagnosing access violations while looking up deallocation functions
much as we already do for allocation function lookup. Explicitly check access
for the function we actually select in one case that was previously missing,
but being caught behind the blanket diagnostics for all overload candidates.
This fixs PR7436.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106986
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Rafael Espindola [Sun, 27 Jun 2010 18:29:21 +0000 (18:29 +0000)]
Use softfp for linux gnueabi, keep the warning for everything else.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106984
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Anders Carlsson [Sun, 27 Jun 2010 17:52:15 +0000 (17:52 +0000)]
Correctly destroy reference temporaries with global storage. Remove ErrorUnsupported call when binding a global reference to a non-lvalue. Fixes PR7326.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106983
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Anders Carlsson [Sun, 27 Jun 2010 17:23:46 +0000 (17:23 +0000)]
Add a CreateReferenceTemporary that will do the right thing for variables with global storage.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106982
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Anders Carlsson [Sun, 27 Jun 2010 16:56:04 +0000 (16:56 +0000)]
Simplify CodeGenFunction::EmitReferenceBindingToExpr as a first step towards fixing PR7326.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106981
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Anders Carlsson [Sun, 27 Jun 2010 15:24:55 +0000 (15:24 +0000)]
Reduce indentation.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106980
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Chris Lattner [Sun, 27 Jun 2010 07:40:06 +0000 (07:40 +0000)]
misc tidying
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106978
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Chris Lattner [Sun, 27 Jun 2010 07:15:29 +0000 (07:15 +0000)]
finally get around to doing a significant cleanup to irgen:
have CGF create and make accessible standard int32,int64 and
intptr types. This fixes a ton of 80 column violations
introduced by LLVMContextification and cleans up stuff a lot.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106977
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Chris Lattner [Sun, 27 Jun 2010 06:32:58 +0000 (06:32 +0000)]
tidy up OrderGlobalInits
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106976
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Chris Lattner [Sun, 27 Jun 2010 06:26:04 +0000 (06:26 +0000)]
If coercing something from int or pointer type to int or pointer type
(potentially after unwrapping it from a struct) do it without going through
memory. We now compile:
struct DeclGroup {
unsigned NumDecls;
};
int foo(DeclGroup D) {
return D.NumDecls;
}
into:
%struct.DeclGroup = type { i32 }
define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
%D = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2]
%coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
%coerce.val.ii = trunc i64 %0 to i32 ; <i32> [#uses=1]
store i32 %coerce.val.ii, i32* %coerce.dive
%tmp = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
%tmp1 = load i32* %tmp ; <i32> [#uses=1]
ret i32 %tmp1
}
instead of:
%struct.DeclGroup = type { i32 }
define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
%D = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2]
%tmp = alloca i64 ; <i64*> [#uses=2]
%coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
store i64 %0, i64* %tmp
%1 = bitcast i64* %tmp to i32* ; <i32*> [#uses=1]
%2 = load i32* %1, align 1 ; <i32> [#uses=1]
store i32 %2, i32* %coerce.dive
%tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
%tmp2 = load i32* %tmp1 ; <i32> [#uses=1]
ret i32 %tmp2
}
... which is quite a bit less terrifying.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106975
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Chris Lattner [Sun, 27 Jun 2010 06:04:18 +0000 (06:04 +0000)]
Same patch as the previous on the store side. Before we compiled this:
struct DeclGroup {
unsigned NumDecls;
};
int foo(DeclGroup D) {
return D.NumDecls;
}
to:
%struct.DeclGroup = type { i32 }
define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
%D = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2]
%tmp = alloca i64 ; <i64*> [#uses=2]
store i64 %0, i64* %tmp
%1 = bitcast i64* %tmp to %struct.DeclGroup* ; <%struct.DeclGroup*> [#uses=1]
%2 = load %struct.DeclGroup* %1, align 1 ; <%struct.DeclGroup> [#uses=1]
store %struct.DeclGroup %2, %struct.DeclGroup* %D
%tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
%tmp2 = load i32* %tmp1 ; <i32> [#uses=1]
ret i32 %tmp2
}
which caused fast isel bailouts due to the FCA load/store of %2. Now
we generate this just blissful code:
%struct.DeclGroup = type { i32 }
define i32 @_Z3foo9DeclGroup(i64) nounwind ssp noredzone {
entry:
%D = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2]
%tmp = alloca i64 ; <i64*> [#uses=2]
%coerce.dive = getelementptr %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
store i64 %0, i64* %tmp
%1 = bitcast i64* %tmp to i32* ; <i32*> [#uses=1]
%2 = load i32* %1, align 1 ; <i32> [#uses=1]
store i32 %2, i32* %coerce.dive
%tmp1 = getelementptr inbounds %struct.DeclGroup* %D, i32 0, i32 0 ; <i32*> [#uses=1]
%tmp2 = load i32* %tmp1 ; <i32> [#uses=1]
ret i32 %tmp2
}
This avoids fastisel bailing out and is groundwork for future patch.
This reduces bailouts on CGStmt.ll to 911 from 935.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106974
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Chris Lattner [Sun, 27 Jun 2010 05:56:15 +0000 (05:56 +0000)]
improve CreateCoercedLoad a bit to generate slightly less awful
IR when handling X86-64 by-value struct stuff. For example, we
use to compile this:
struct DeclGroup {
unsigned NumDecls;
};
int foo(DeclGroup D);
void bar(DeclGroup *D) {
foo(*D);
}
into:
define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) ssp nounwind {
entry:
%D.addr = alloca %struct.DeclGroup*, align 8 ; <%struct.DeclGroup**> [#uses=2]
%agg.tmp = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2]
%tmp3 = alloca i64 ; <i64*> [#uses=2]
store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
%tmp = load %struct.DeclGroup** %D.addr ; <%struct.DeclGroup*> [#uses=1]
%tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
%tmp2 = bitcast %struct.DeclGroup* %tmp to i8* ; <i8*> [#uses=1]
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
%0 = bitcast i64* %tmp3 to %struct.DeclGroup* ; <%struct.DeclGroup*> [#uses=1]
%1 = load %struct.DeclGroup* %agg.tmp ; <%struct.DeclGroup> [#uses=1]
store %struct.DeclGroup %1, %struct.DeclGroup* %0, align 1
%2 = load i64* %tmp3 ; <i64> [#uses=1]
call void @_Z3foo9DeclGroup(i64 %2)
ret void
}
which would cause fastisel to bail out due to the first class aggregate load %1. With
this patch we now compile it into the (still awful):
define void @_Z3barP9DeclGroup(%struct.DeclGroup* %D) nounwind ssp noredzone {
entry:
%D.addr = alloca %struct.DeclGroup*, align 8 ; <%struct.DeclGroup**> [#uses=2]
%agg.tmp = alloca %struct.DeclGroup, align 4 ; <%struct.DeclGroup*> [#uses=2]
%tmp3 = alloca i64 ; <i64*> [#uses=2]
store %struct.DeclGroup* %D, %struct.DeclGroup** %D.addr
%tmp = load %struct.DeclGroup** %D.addr ; <%struct.DeclGroup*> [#uses=1]
%tmp1 = bitcast %struct.DeclGroup* %agg.tmp to i8* ; <i8*> [#uses=1]
%tmp2 = bitcast %struct.DeclGroup* %tmp to i8* ; <i8*> [#uses=1]
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %tmp1, i8* %tmp2, i64 4, i32 4, i1 false)
%coerce.dive = getelementptr %struct.DeclGroup* %agg.tmp, i32 0, i32 0 ; <i32*> [#uses=1]
%0 = bitcast i64* %tmp3 to i32* ; <i32*> [#uses=1]
%1 = load i32* %coerce.dive ; <i32> [#uses=1]
store i32 %1, i32* %0, align 1
%2 = load i64* %tmp3 ; <i64> [#uses=1]
%call = call i32 @_Z3foo9DeclGroup(i64 %2) noredzone ; <i32> [#uses=0]
ret void
}
which doesn't bail out. On CGStmt.ll, this reduces fastisel bail outs from 958 to 935,
and is the precursor of better things to come.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106973
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Jordy Rose [Sun, 27 Jun 2010 01:20:56 +0000 (01:20 +0000)]
Implicitly compare symbolic expressions to zero when they're being used as constraints. Part of PR7491.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106972
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Chris Lattner [Sun, 27 Jun 2010 01:08:03 +0000 (01:08 +0000)]
merge two tests.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106971
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Chris Lattner [Sun, 27 Jun 2010 01:06:27 +0000 (01:06 +0000)]
Change IR generation for return (in the simple case) to avoid doing silly
load/store nonsense in the epilog. For example, for:
int foo(int X) {
int A[100];
return A[X];
}
we used to generate:
%arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i64 %idxprom ; <i32*> [#uses=1]
%tmp1 = load i32* %arrayidx ; <i32> [#uses=1]
store i32 %tmp1, i32* %retval
%0 = load i32* %retval ; <i32> [#uses=1]
ret i32 %0
}
which codegen'd to this code:
_foo: ## @foo
## BB#0: ## %entry
subq $408, %rsp ## imm = 0x198
movl %edi, 400(%rsp)
movl 400(%rsp), %edi
movslq %edi, %rax
movl (%rsp,%rax,4), %edi
movl %edi, 404(%rsp)
movl 404(%rsp), %eax
addq $408, %rsp ## imm = 0x198
ret
Now we generate:
%arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i64 %idxprom ; <i32*> [#uses=1]
%tmp1 = load i32* %arrayidx ; <i32> [#uses=1]
ret i32 %tmp1
}
and:
_foo: ## @foo
## BB#0: ## %entry
subq $408, %rsp ## imm = 0x198
movl %edi, 404(%rsp)
movl 404(%rsp), %edi
movslq %edi, %rax
movl (%rsp,%rax,4), %eax
addq $408, %rsp ## imm = 0x198
ret
This actually does matter, cutting out 2000 lines of IR from CGStmt.ll
for example.
Another interesting effect is that altivec.h functions which are dead
now get dce'd by the inliner. Hence all the changes to
builtins-ppc-altivec.c to ensure the calls aren't dead.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106970
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Chris Lattner [Sat, 26 Jun 2010 23:13:19 +0000 (23:13 +0000)]
reduce indentation
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106967
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Chris Lattner [Sat, 26 Jun 2010 23:03:20 +0000 (23:03 +0000)]
Implement rdar://
7530813 - collapse multiple GEP instructions in IRgen
This avoids generating two gep's for common array operations. Before
we would generate something like:
%tmp = load i32* %X.addr ; <i32> [#uses=1]
%arraydecay = getelementptr inbounds [100 x i32]* %A, i32 0, i32 0 ; <i32*> [#uses=1]
%arrayidx = getelementptr inbounds i32* %arraydecay, i32 %tmp ; <i32*> [#uses=1]
%tmp1 = load i32* %arrayidx ; <i32> [#uses=1]
Now we generate:
%tmp = load i32* %X.addr ; <i32> [#uses=1]
%arrayidx = getelementptr inbounds [100 x i32]* %A, i32 0, i32 %tmp ; <i32*> [#uses=1]
%tmp1 = load i32* %arrayidx ; <i32> [#uses=1]
Less IR is better at -O0.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106966
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Ted Kremenek [Sat, 26 Jun 2010 22:40:52 +0000 (22:40 +0000)]
Allow '__extension__' to be analyzed in a lvalue context.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106964
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Chris Lattner [Sat, 26 Jun 2010 22:40:46 +0000 (22:40 +0000)]
minor cleanup: don't emit the base of an array subscript until after
we're done diddling around with the index stuff. Use a cheaper type
comparison.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106963
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Chris Lattner [Sat, 26 Jun 2010 22:18:28 +0000 (22:18 +0000)]
fix inc/dec to honor -fwrapv and -ftrapv, implementing PR7426.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106962
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Chris Lattner [Sat, 26 Jun 2010 22:09:34 +0000 (22:09 +0000)]
move scalar inc/dec codegen into ScalarExprEmitter instead
of being in CGF. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106961
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Chris Lattner [Sat, 26 Jun 2010 21:52:32 +0000 (21:52 +0000)]
use more efficient type comparison predicates.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106958
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Chris Lattner [Sat, 26 Jun 2010 21:48:21 +0000 (21:48 +0000)]
Fix unary minus to trap on overflow with -ftrapv, refactoring binop
code so we can use it from VisitUnaryMinus.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106957
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Chris Lattner [Sat, 26 Jun 2010 21:25:03 +0000 (21:25 +0000)]
Implement support for -fwrapv, rdar://
7221421
As part of this, pull together trapv handling into the same enum.
This also add support for NSW multiplies.
This also makes PCH disagreement on overflow behavior silent, since it
really doesn't matter except for warnings and codegen (no macros get
defined etc).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106956
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Chris Lattner [Sat, 26 Jun 2010 20:27:24 +0000 (20:27 +0000)]
implement rdar://
7432000 - signed negate should codegen as NSW.
While I'm in there, adjust pointer to member adjustments as well.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106955
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Chris Lattner [Sat, 26 Jun 2010 17:11:39 +0000 (17:11 +0000)]
Implement support for #pragma message, patch by Michael Spencer!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106950
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Anders Carlsson [Sat, 26 Jun 2010 16:35:32 +0000 (16:35 +0000)]
Change EmitReferenceBindingToExpr to take a decl instead of a boolean.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106949
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Anders Carlsson [Sat, 26 Jun 2010 16:09:40 +0000 (16:09 +0000)]
Add function for mangling reference temporaries.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106948
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Charles Davis [Sat, 26 Jun 2010 03:50:05 +0000 (03:50 +0000)]
Mangle pointer and (lvalue) reference types in the Microsoft C++ Mangler.
Also, fix mangling of throw specs. Turns out MSVC totally ignores throw
specs when mangling names.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106937
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Daniel Dunbar [Sat, 26 Jun 2010 00:31:14 +0000 (00:31 +0000)]
Remove cruft that I didn't intend to commit.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106932
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Bob Wilson [Sat, 26 Jun 2010 00:03:23 +0000 (00:03 +0000)]
Add a missing dependency to try to fix a buildbot failure.
It complained with:
llvm[5]: Building Clang arm_neon.h.inc with tblgen
cp: cannot create regular file `/build/buildbot-llvm/clang-x86_64-linux-selfhost-rel/llvm.obj.2/Release/lib/clang/2.0/include/arm_neon.h': No such file or directory
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106922
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Ted Kremenek [Fri, 25 Jun 2010 23:51:38 +0000 (23:51 +0000)]
Relax assertion since non-pod C++ classes are not aggregates, but still can appear in this context.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106919
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Ted Kremenek [Fri, 25 Jun 2010 23:51:34 +0000 (23:51 +0000)]
Add support for CXXRecordDecl in CFGRecStmtDeclVisitor.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106918
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Daniel Dunbar [Fri, 25 Jun 2010 23:34:47 +0000 (23:34 +0000)]
clang: Derive version name from LLVM unless specified explicitly. This means
clang is now clang 2.8.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106914
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Jordy Rose [Fri, 25 Jun 2010 23:23:04 +0000 (23:23 +0000)]
When a constant size array is casted to another type, its length should be scaled as well.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106911
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Ted Kremenek [Fri, 25 Jun 2010 22:48:52 +0000 (22:48 +0000)]
Add dead stores C++ test case that was previously asserting due to an
invalid source range for CXXNewExpr.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106904
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Ted Kremenek [Fri, 25 Jun 2010 22:48:49 +0000 (22:48 +0000)]
Use TypeSourceInfo to help determine the SourceRange of a CXXNewExpr. This fixes several
cases where we generated an invalid SourceRange for this expression. Thanks to John McCall
for helping me figure this out.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106903
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Fariborz Jahanian [Fri, 25 Jun 2010 22:32:31 +0000 (22:32 +0000)]
Try making BuildBot happy again.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106898
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Fariborz Jahanian [Fri, 25 Jun 2010 21:08:10 +0000 (21:08 +0000)]
Test case for pr7490.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106887
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Ted Kremenek [Fri, 25 Jun 2010 20:59:31 +0000 (20:59 +0000)]
Add "checker caching" to GRExprEngine::CheckerVisit to progressively build
a winowed list of checkers that actually do something for a given StmtClass.
As the number of checkers grows, this may potentially significantly reduce
the number of checkers called at any one time. My own measurements show that
for the ~20 registered Checker objects, only ~5 of them respond at any one time
to a give statement. While this isn't a net performance win right now (there
is a minor slowdown on sqlite.3) this improvement does greatly improve debugging
when stepping through the checkers used to evaluate a given statement.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106884
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Ted Kremenek [Fri, 25 Jun 2010 20:59:24 +0000 (20:59 +0000)]
Fix -analyze-display-progress (once again), this time with an additional regression test.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106883
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Fariborz Jahanian [Fri, 25 Jun 2010 20:01:13 +0000 (20:01 +0000)]
Minor change to my last patch to fix PR7490.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106875
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Eric Christopher [Fri, 25 Jun 2010 19:04:52 +0000 (19:04 +0000)]
Translate numbers properly.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106873
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Fariborz Jahanian [Fri, 25 Jun 2010 18:26:07 +0000 (18:26 +0000)]
IRGen for trivial initialization of dynamiccaly allocated
array of other done c++ objects. Fixes PR7490.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106869
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Tom Care [Fri, 25 Jun 2010 18:22:31 +0000 (18:22 +0000)]
Change RegionStoreManager::Retrieve to infer the type of a symbolic region from the context when it is not already available.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106868
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Daniel Dunbar [Fri, 25 Jun 2010 17:33:49 +0000 (17:33 +0000)]
build: Get CLANG_VERSION from Version.inc instead of depending on VER file directly.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106864
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Daniel Dunbar [Fri, 25 Jun 2010 17:33:46 +0000 (17:33 +0000)]
build: Add a generated Version.inc file instead of duplicating information.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106863
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Argyrios Kyrtzidis [Fri, 25 Jun 2010 16:25:09 +0000 (16:25 +0000)]
Support NonTypeTemplateParmDecl for PCH.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106860
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Argyrios Kyrtzidis [Fri, 25 Jun 2010 16:25:02 +0000 (16:25 +0000)]
Make PCHWriter::FlushStmts() robust. If we added null Stmts, reading them back got messed up.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106859
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Argyrios Kyrtzidis [Fri, 25 Jun 2010 16:24:58 +0000 (16:24 +0000)]
Support DependentTemplateSpecializationType and ElaboratedType for PCH.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106858
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Argyrios Kyrtzidis [Fri, 25 Jun 2010 16:24:51 +0000 (16:24 +0000)]
Add forgotten breaks in case statements.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106857
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Benjamin Kramer [Fri, 25 Jun 2010 12:48:07 +0000 (12:48 +0000)]
A bug I've introduced in STDIN handling surfaced a few broken tests, fix them.
Lexer/hexfloat.cpp is now XFAIL'd, I'd appreciate if someone could look into it.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106840
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Argyrios Kyrtzidis [Fri, 25 Jun 2010 09:03:34 +0000 (09:03 +0000)]
Support UnresolvedLookupExpr for PCH.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106832
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Argyrios Kyrtzidis [Fri, 25 Jun 2010 09:03:26 +0000 (09:03 +0000)]
Support UnresolvedMemberExpr for PCH.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106831
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Argyrios Kyrtzidis [Fri, 25 Jun 2010 09:03:12 +0000 (09:03 +0000)]
Print source location when we encounter unhandled statement during PCH writing.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106830
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Chris Lattner [Fri, 25 Jun 2010 05:00:29 +0000 (05:00 +0000)]
I don't know when I committed this, but it's probably a "bad thing".
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106821
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Chandler Carruth [Fri, 25 Jun 2010 03:22:07 +0000 (03:22 +0000)]
Implement dependent alignment attribute support. This is a bit gross given the
current attribute system, but it is enough to handle class templates which
specify parts of their alignment in terms of their template parameters.
This also replaces the attributes test in SemaTemplate with one that actually
tests working attributes instead of broken ones. I plan to add more tests here
for non-dependent attributes in a subsequent patch.
Thanks to John for walking me through some of this. =D
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106818
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Fariborz Jahanian [Fri, 25 Jun 2010 00:05:45 +0000 (00:05 +0000)]
Add comment for my last patch.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106813
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John Thompson [Fri, 25 Jun 2010 00:02:05 +0000 (00:02 +0000)]
Fixed another double-char in PPC-specific asm constraints.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106812
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John Thompson [Thu, 24 Jun 2010 22:44:13 +0000 (22:44 +0000)]
Added PPC-specific asm constraints, PS3 configuration changes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106806
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Eric Christopher [Thu, 24 Jun 2010 20:41:41 +0000 (20:41 +0000)]
Remove HAS_TLS define.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106786
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Fariborz Jahanian [Thu, 24 Jun 2010 18:50:41 +0000 (18:50 +0000)]
Fixes a regression when redeclaration of a global satic
is an extern local to a function. Radar
8125274 .
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106773
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Fariborz Jahanian [Thu, 24 Jun 2010 16:40:16 +0000 (16:40 +0000)]
Renamed selactor-expr-lvalue.mm to selector-expr-lvalue.mm.
Thanks Daniel D.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106758
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Ted Kremenek [Thu, 24 Jun 2010 16:26:12 +0000 (16:26 +0000)]
Return null pointer instead of 'false' (fixes clang warning).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106755
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Zhongxing Xu [Thu, 24 Jun 2010 13:36:41 +0000 (13:36 +0000)]
Add check for illegal whence argument of fseek.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106742
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Zhongxing Xu [Thu, 24 Jun 2010 13:09:02 +0000 (13:09 +0000)]
Should return stateNotNull.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106741
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Zhongxing Xu [Thu, 24 Jun 2010 12:52:28 +0000 (12:52 +0000)]
Let StreamChecker::CheckNullStream() return a GRState after successful check.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106738
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Benjamin Kramer [Thu, 24 Jun 2010 11:06:12 +0000 (11:06 +0000)]
Don't depend on system headers in clang -cc1 tests.
The constant was copied from clang's limits.h.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106732
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