operations (as opposed to storage only half/fp16).
Also add some semantic checks for OpenCL half types.
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uncovered.
This required manually correcting all of the incorrect main-module
headers I could find, and running the new llvm/utils/sort_includes.py
script over the files.
I also manually added quite a few missing headers that were uncovered by
shuffling the order or moving headers up to be main-module-headers.
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in the ABI arrangement, and leave a hook behind so that we can easily
tweak CCs on platforms that use different CCs by default for C++
instance methods.
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in general (such an atomic has boolean representation) and
specifically for IR generation of __c11_atomic_init. The latter also
means actually using initialization semantics for this initialization,
rather than just creating a store.
On a related note, make sure we actually put in non-atomic-to-atomic
conversions when performing an implicit conversion sequence. IR
generation is far too kind here, but we still want the ASTs to make
sense.
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The member variable is always "LangOpts" and the member function is always "getLangOpts".
Reviewed by Chris Lattner
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optional argument passed through the variadic ellipsis)
potentially affects how we need to lower it. Propagate
this information down to the various getFunctionInfo(...)
overloads on CodeGenTypes. Furthermore, rename those
overloads to clarify their distinct purposes, and make
sure we're calling the right one in the right place.
This has a nice side-effect of making it easier to construct
a function type, since the 'variadic' bit is no longer
separable.
This shouldn't really change anything for our existing
platforms, with one minor exception --- we should now call
variadic ObjC methods with the ... in the "right place"
(see the test case), which I guess matters for anyone
running GNUStep on MIPS. Mostly it's just a substantial
clean-up.
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(I was going to fix the TODO about DenseMap too, but
that would break self-host right now. See PR11922.)
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definition. Assert this. Change IR generation to not try to
aggressively emit the IR translation of a record during its
own definition. Fixes PR10912.
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builtin types (When requested). This is another step toward making
ASTUnit build the ASTContext as needed when loading an AST file,
rather than doing so after the fact. No actual functionality change (yet).
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types. Fore xample, we used to lower:
struct bar { int a; };
struct foo {
void (*FP)(struct bar);
} G;
to:
%struct.foo = type { {}* }
since the function pointer would cause recursive translation of bar and
we didn't know if that would get us into trouble. We are now smart enough
to know that it is fine, so we get this type instead:
%struct.foo = type { void (i32)* }
Codegen still needs to be prepared for uncooperative types at any place,
which is why I let the maximally uncooperative code sit around for awhile to
help shake out the bugs.
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i32. They almost always end up this way in the end anyway, and if we get
lucky, this avoids generating some bitcasts.
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uncompleted struct types. We now do what llvm-gcc does and compile
them into [i8 x 0]. If the type is later completed, we make sure that
it is appropriately cast.
We compile the terrible example to something like this now:
%struct.A = type { i32, i32, i32 }
@g = external global [0 x i8]
define void @_Z1fv() nounwind {
entry:
call void @_Z3fooP1A(%struct.A* bitcast ([0 x i8]* @g to %struct.A*))
ret void
}
declare void @_Z3fooP1A(%struct.A*)
define %struct.A* @_Z2f2v() nounwind {
entry:
ret %struct.A* getelementptr inbounds ([0 x %struct.A]* bitcast ([0 x i8]* @g to [0 x %struct.A]*), i32 0, i64 1)
}
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stuff like this:
typedef struct {
int x, y, z;
} foo_t;
foo_t g;
into:
%"struct.<anonymous>" = type { i32, i32, i32 }
we now get:
%struct.foo_t = type { i32, i32, i32 }
This doesn't change the behavior of the compiler, but makes the IR much easier to read.
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is called whenever a tag type is completed. We previously used that
as the sign to layout the codegen representation for the tag type,
which worked but meant that we laid out *every* completed type, whether
it was used or not.
Now we just lay out the type if we've already seen it somehow else.
This means that we lay out types we've used but haven't seen a body
for, but we don't lay out tons of stuff that noone cares about.
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caused us to skip layout out a function accurately. If
so, flush the type cache for both the function and struct
case to ensure that any pointers to the functions get
recomputed. This is overconservative, but with this patch
clang can build itself again.
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conservative when converting a functiontype to IR when in a "pointer within
a struct" context. This has the unfortunate sideeffect of compiling all
function pointers inside of structs into "{}*" which, though correct, is
ugly. This has the positive side effect of being correct, and it is pretty
straight-forward to improve on this.
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it is a predicate, not an action. Change the return type to be a bool,
not the incomplete member. Enhace it to detect the recursive compilation
case, allowing us to compile Eli's testcase on llvmdev:
struct T {
struct T (*p)(void);
} t;
into:
%struct.T = type { {}* }
@t = common global %struct.T zeroinitializer, align 8
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the enum has already been converted. If not, there cannot be any types
built on top of it, so there is no need to flush the cache.
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member function, i.e. something of the form 'x.f' where 'f' is a non-static
member function. Diagnose this in the general case. Some of the new diagnostics
are probably worse than the old ones, but we now get this right much more
universally, and there's certainly room for improvement in the diagnostics.
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Guy Benyei