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author | George Burgess IV <george.burgess.iv@gmail.com> | 2017-06-27 21:31:31 +0000 |
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committer | George Burgess IV <george.burgess.iv@gmail.com> | 2017-06-27 21:31:31 +0000 |
commit | 563c0ec65e052e93085d4e3b7fede21da5ea768f (patch) | |
tree | 2240ccca03e6b33513c7bf55eb6e5cd74b0d3fdc /test/PCH | |
parent | f255da2ab7a0fd98b7d34b160e640c96cce25560 (diff) |
[Sema] Allow unmarked overloadable functions.
This patch extends the `overloadable` attribute to allow for one
function with a given name to not be marked with the `overloadable`
attribute. The overload without the `overloadable` attribute will not
have its name mangled.
So, the following code is now legal:
void foo(void) __attribute__((overloadable));
void foo(int);
void foo(float) __attribute__((overloadable));
In addition, this patch fixes a bug where we'd accept code with
`__attribute__((overloadable))` inconsistently applied. In other words,
we used to accept:
void foo(void);
void foo(void) __attribute__((overloadable));
But we will do this no longer, since it defeats the original purpose of
requiring `__attribute__((overloadable))` on all redeclarations of a
function.
This breakage seems to not be an issue in practice, since the only code
I could find that had this pattern often looked like:
void foo(void);
void foo(void) __attribute__((overloadable)) __asm__("foo");
void foo(int) __attribute__((overloadable));
...Which can now be simplified by simply removing the asm label and
overloadable attribute from the redeclaration of `void foo(void);`
Differential Revision: https://reviews.llvm.org/D32332
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@306467 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/PCH')
-rw-r--r-- | test/PCH/attrs.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/test/PCH/attrs.c b/test/PCH/attrs.c index 3f34d4d009..3bf660cf28 100644 --- a/test/PCH/attrs.c +++ b/test/PCH/attrs.c @@ -13,8 +13,9 @@ int g(int) __attribute__((abi_tag("foo", "bar", "baz"), no_sanitize("address", " #else +float f(float); double f(double); // expected-error{{overloadable}} - // expected-note@11{{previous overload}} + // expected-note@-2{{previous unmarked overload}} void h() { g(0); } #endif |