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c language: diagnose use of "[*]" on any array dimension 

in the parameter of a function definition. Currently,
it crashes in irgen if it is on other than the 1st dimension.
// rdar://13705391

llvm-svn: 180732
This commit is contained in:
Fariborz Jahanian 2013-04-29 22:01:25 +00:00
parent 474df6d3ed
commit 4289a5a429
2 changed files with 10 additions and 1 deletions
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4
clang/lib/Sema/SemaChecking.cpp
View File

@ -5703,12 +5703,14 @@ bool Sema::CheckParmsForFunctionDef(ParmVarDecl **P, ParmVarDecl **PEnd,
// notation in their sequences of declarator specifiers to specify
// variable length array types.
QualType PType = Param->getOriginalType();
if (const ArrayType *AT = Context.getAsArrayType(PType)) {
while (const ArrayType *AT = Context.getAsArrayType(PType)) {
if (AT->getSizeModifier() == ArrayType::Star) {
// FIXME: This diagnostic should point the '[*]' if source-location
// information is added for it.
Diag(Param->getLocation(), diag::err_array_star_in_function_definition);
break;
}
PType= AT->getElementType();
}
}

7
clang/test/Sema/crash-invalid-array.c
View File

@ -15,3 +15,10 @@ int main()
p[i][i] = i;
}
}
// rdar://13705391
void foo(int a[*][2]) {(void)a[0][1]; } // expected-error {{variable length array must be bound in function definition}}
void foo1(int a[2][*]) {(void)a[0][1]; } // expected-error {{variable length array must be bound in function definition}}
void foo2(int a[*][*]) {(void)a[0][1]; } // expected-error {{variable length array must be bound in function definition}}
void foo3(int a[2][*][2]) {(void)a[0][1][1]; } // expected-error {{variable length array must be bound in function definition}}
void foo4(int a[2][*][*]) {(void)a[0][1][1]; } // expected-error {{variable length array must be bound in function definition}}