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clang was encoding pointers to typedefs as if they were pointers to
structs because that is apparently what gcc is doing.
For example:
```
@class Class1;
typedef NSArray<Class1 *> MyArray;
void foo1(void) {
const char *s0 = @encode(MyArray *); // "^{NSArray=#}"
const char *s1 = @encode(NSArray<Class1 *> *); // "@"
}
```
This commit removes the code that was there to make clang compatible
with gcc and make clang emit the correct encoding for ObjC pointers,
which is "@".
rdar://problem/50563529
Differential Revision: https://reviews.llvm.org/D61974
llvm-svn: 362034
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Some of these functions take some extraneous arguments, e.g. EltSize,
Offset, which are computable from the Type and DataLayout.
Add some asserts to ensure that the computed values are consistent
with the passed-in values, in preparation for eliminating the
extraneous arguments. This also asserts that the Type is an Array for
the calls named "Array" and a Struct for the calls named "Struct".
Then, correct a couple of errors:
1. Using CreateStructGEP on an array type. (this causes the majority
of the test differences, as struct GEPs are created with i32
indices, while array GEPs are created with i64 indices)
2. Passing the wrong Offset to CreateStructGEP in TargetInfo.cpp on
x86-64 NACL (which uses 32-bit pointers).
Differential Revision: https://reviews.llvm.org/D57766
llvm-svn: 353529
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These are all emitted into a section with a cstring_literal attribute. The
attribute permits the linker to coalesce the string contents. The address of
the strings are not important.
llvm-svn: 281855
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These strings are constants, mark them as such. This doesn't matter too much in
practice on MachO since the constants are placed into a special section and not
referred to directly.
llvm-svn: 281854
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llvm-svn: 232187
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'typeof' to extract type of an @encode expression used
in an initializer. // rdar://16655340
llvm-svn: 207004
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In llvm the only semantic difference between internal and private is that llvm
tries to hide private globals my mangling them with a private prefix. Since
the globals changed by this patch already had the magic don't mangle marker,
there should be no change in the generated assembly.
A followup patch should then be able to drop the \01L and \01l prefixes and let
llvm mangle as appropriate.
llvm-svn: 202419
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ivar type in meta-data while preventing recursive
encoding in a corner case. // rdar://14408244
llvm-svn: 186169
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an ivar of type pointer to a typedef'ed object.
// rdar://13190095
llvm-svn: 175298
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when an argument type size is 0. // rdar://11777609, PR13229
llvm-svn: 159472
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