If we're going to assume references are dereferenceable, we should also
assume they're aligned: otherwise, we can't actually dereference them.
See also D80072.
Differential Revision: https://reviews.llvm.org/D80166
This operator is intended for casting between
pointers to objects in different address spaces
and follows similar logic as const_cast in C++.
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60193
Add constexpr evaluation for ExtVectorElementExpr nodes by evaluating
the underlying vector expression. Add basic folding for the case that
Evaluate does not return an LValue.
Differential Revision: https://reviews.llvm.org/D71133
The AST for the constexpr.cl test contains address space conversion
nodes to cast through the implicit generic address space. These
caused the evaluator to reject the input as constexpr in C++ for
OpenCL mode, whereas the input was considered constexpr in plain C++
mode as the AST won't have address space cast nodes then.
Fixes PR44177.
Differential Revision: https://reviews.llvm.org/D71015
Clang was creating a DerivedToBase ImplicitCastExpr that was also
casting between address spaces as part of the second step in the
standard conversion sequence. Defer the address space conversion to
the third step in the sequence instead, such that we get a separate
ImplicitCastExpr for the address space conversion.
Differential Revision: https://reviews.llvm.org/D70605
Clang was creating an UncheckedDerivedToBase ImplicitCastExpr that was
also casting between address spaces. Insert an ImplicitCastExpr node
for doing the address space conversion.
Differential Revision: https://reviews.llvm.org/D69810
PR43145 revealed two places where Clang was attempting to create a
bitcast without considering the address space of class types during
C++ class code generation.
Differential Revision: https://reviews.llvm.org/D68403
llvm-svn: 375118
SPIR targets need to have all functions be SPIR calling convention,
however the CXXABIs were just returning CC_C in all non-'this-CC' cases.
https://reviews.llvm.org/D65294
llvm-svn: 367103
Rename lang mode flag to -cl-std=clc++/-cl-std=CLC++
or -std=clc++/-std=CLC++.
This aligns with OpenCL C conversion and removes ambiguity
with OpenCL C++.
Differential Revision: https://reviews.llvm.org/D65102
llvm-svn: 367008
Reason: this commit causes crashes in the clang compiler when building
LLVM Support with libc++, see https://bugs.llvm.org/show_bug.cgi?id=42665
for details.
llvm-svn: 366429
Summary:
This patch does mainly three things:
1. It fixes a false positive error detection in Sema that is similar to
D62156. The error happens when explicitly calling an overloaded
destructor for different address spaces.
2. It selects the correct destructor when multiple overloads for
address spaces are available.
3. It inserts the expected address space cast when invoking a
destructor, if needed, and therefore fixes a crash due to the unmet
assertion in llvm::CastInst::Create.
The following is a reproducer of the three issues:
struct MyType {
~MyType() {}
~MyType() __constant {}
};
__constant MyType myGlobal{};
kernel void foo() {
myGlobal.~MyType(); // 1 and 2.
// 1. error: cannot initialize object parameter of type
// '__generic MyType' with an expression of type '__constant MyType'
// 2. error: no matching member function for call to '~MyType'
}
kernel void bar() {
// 3. The implicit call to the destructor crashes due to:
// Assertion `castIsValid(op, S, Ty) && "Invalid cast!"' failed.
// in llvm::CastInst::Create.
MyType myLocal;
}
The added test depends on D62413 and covers a few more things than the
above reproducer.
Subscribers: yaxunl, Anastasia, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D64569
llvm-svn: 366422
Pass NULL to pointer arg of __cxa_atexit if addr space
is not matching with its param. This doesn't align yet
with how dtors are generated that should be changed too.
Differential Revision: https://reviews.llvm.org/D62413
llvm-svn: 366059
If we construct an object in some arbitrary non-default addr space
it should fail unless either:
- There is an implicit conversion from the address space to default
/generic address space.
- There is a matching ctor qualified with an address space that is
either exactly matching or convertible to the address space of an
object.
Differential Revision: https://reviews.llvm.org/D62156
llvm-svn: 363944
This patch allows current users of Value::stripPointerCasts() to force
the result of the function to have the same representation as the value
it was called on. This is useful in various cases, e.g., (non-)null
checks.
In this patch only a single call site was adjusted to fix an existing
misuse that would cause nonnull where they may be wrong. Uses in
attribute deduction and other areas, e.g., D60047, are to be expected.
For a discussion on this topic, please see [0].
[0] http://lists.llvm.org/pipermail/llvm-dev/2018-December/128423.html
Reviewers: hfinkel, arsenm, reames
Subscribers: wdng, hiraditya, bollu, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61607
llvm-svn: 362545
This change sets missing cast kind correctly in the address
space conversion case.
Differential Revision: https://reviews.llvm.org/D62299
llvm-svn: 362409
We need to be able to enqueue internal function that initializes
global constructors on the host side. Therefore it has to be
converted to a kernel.
This change factors out common logic for adding kernel metadata
and moves it from CodeGenFunction to CodeGenModule in order to
make it accessible for the extra use case.
Differential revision: https://reviews.llvm.org/D61488
llvm-svn: 360342
Kernel function names have to be preserved as in the original
source to be able to access them from the host API side.
This commit also adds restriction to kernels that prevents them
from being used in overloading, templates, etc.
Differential Revision: https://reviews.llvm.org/D60454
llvm-svn: 360152
When the expression used to initialise 'this' has a pointer type,
check the address space of the pointee type instead of the pointer
type to decide whether an address space cast is required.
It is the pointee type that carries the address space qualifier.
Fixing PR41674.
Patch by kpet (Kevin Petit)!
Differential Revision: https://reviews.llvm.org/D61319
llvm-svn: 359798
Prevent adding initializers implicitly to variables declared in
local address space. This happens when they get converted into
global variables and therefore theoretically have to be default
initialized in C++.
Differential Revision: https://reviews.llvm.org/D59646
llvm-svn: 357684
When we create overloads for the builtin compound assignment operators
we need to preserve address space for the reference operand taking it
from the argument that is passed in.
Differential Revision: https://reviews.llvm.org/D59367
llvm-svn: 356475
This change adds a new diagnostic for mismatching address spaces
to be used for C++ casts (only enabled in C style cast for now,
the rest will follow!).
The change extends C-style cast rules to account for address spaces.
It also adds a separate function for address space cast checking that
can be used to map from a separate address space cast operator
addrspace_cast (to be added as a follow up patch).
Note, that after this change clang will no longer allows arbitrary
address space conversions in reinterpret_casts because they can lead
to accidental errors. The implicit safe conversions would still be
allowed.
Differential Revision: https://reviews.llvm.org/D58346
llvm-svn: 355609
Adjust address space for references and pointer operands of builtin operators.
Currently this change only fixes addr space in assignment (= and |=) operator,
that is needed for the test case reported in the bug. Wider support for all
other operations will follow.
Differential Revision: https://reviews.llvm.org/D58719
llvm-svn: 355608
The address space for the Base class pointer when up-casting
from Derived should be taken from the Derived class pointer.
Differential Revision: https://reviews.llvm.org/D53818
llvm-svn: 355606
This change fixes temporary materialization to happen in the right
(default) address space when binding to it a reference of different type.
It adds address space conversion afterwards to match the addr space
of a reference.
Differential Revision: https://reviews.llvm.org/D58634
llvm-svn: 355499
When creating the prototype of implicit assignment operators the
returned reference to the class should be qualified with the same
addr space as 'this' (i.e. __generic in OpenCL).
Differential Revision: https://reviews.llvm.org/D57101
llvm-svn: 352617
Methods can now be qualified with address spaces to prevent
undesirable conversions to generic or to provide custom
implementation to be used if the object is located in certain
memory segments.
This commit extends parsing and standard C++ overloading to
work for an address space of a method (i.e. implicit 'this'
parameter).
Differential Revision: https://reviews.llvm.org/D55850
llvm-svn: 351747
Set address spaces of 'this' param correctly for implicit special
class members.
This also changes initialization conversion sequence to separate
address space conversion from other qualifiers in case of binding
reference to a temporary. In this case address space conversion
should happen after the binding (unlike for other quals). This is
needed to materialize it correctly in the alloca address space.
Initial patch by Mikael Nilssoni!
Differential Revision: https://reviews.llvm.org/D56066
llvm-svn: 351053
Address spaces are cast into generic before invoking the constructor.
Added support for a trailing Qualifiers object in FunctionProtoType.
Note: This recommits the previously reverted patch,
but now it is commited together with a fix for lldb.
Differential Revision: https://reviews.llvm.org/D54862
llvm-svn: 349019
Address spaces are cast into generic before invoking the constructor.
Added support for a trailing Qualifiers object in FunctionProtoType.
Differential Revision: https://reviews.llvm.org/D54862
llvm-svn: 348927
Fix ICEs on template instantiations that were leading to
the creation of invalid code patterns with address spaces.
Incorrect cases are now diagnosed properly.
Differential Revision: https://reviews.llvm.org/D54858
llvm-svn: 347865
Added references to the addr spaces deduction and enabled
CL2.0 features (program scope variables and storage class
qualifiers) to work in C++ mode too.
Fixed several address space conversion issues in CodeGen
for references.
Differential Revision: https://reviews.llvm.org/D53764
llvm-svn: 347059
Eli Friedman