"obviously braindead" linear searches. reduces the number of slow
type lookups from 10K to 883 on carbon.h, speeding up parsing from 3.5 to
1.26s.
llvm-svn: 39312
a foldingset instead. This reduces the number of slow type lookups from
32K to 10K, which speeds up parsing of carbon.h from 11s to 3.5s.
llvm-svn: 39311
ASTContext::getTagDeclType by not having to do a linear search. With this,
parse time for carbon.h drops from 21.8s to 16.0s and # slow lookups drop from
83K to 63K.
llvm-svn: 39306
*** AST Context Stats:
30594 types total.
19 builtin types
3929 pointer types
308 array types
18883 function types with proto
8 function types with no proto
2988 typename (typedef) types
4459 tagged types
1476 struct types
80 union types
0 class types
2903 enum types
83298 slow type lookups
Next up, making type canonicalization not trivially silly.
llvm-svn: 39305
struct q { int a, a; };
with:
t.c:3:19: error: duplicate member 'a'
struct q { int a, a; };
^
t.c:3:16: error: previous definition is here
struct q { int a, a; };
^
llvm-svn: 39303
This emits these diagnostics:
t.c:4:14: error: redefinition of 'a'
enum foo22 { a, b };
^
t.c:3:5: error: previous definition is here
int a;
^
t.c:8:17: error: redefinition of enumerator 'b'
enum foo23 { c, b };
^
t.c:4:17: error: previous definition is here
enum foo22 { a, b };
^
4 diagnostics generated.
for:
int a;
enum foo22 { a, b };
enum foo23 { c, b };
llvm-svn: 39302
t.c:10:15: warning: 'bonk' may not be nested in a struct due to flexible array member
struct bink bonk;
^
t.c:13:14: error: 'struct bink' may not be used as an array element due to flexible array member
struct bink A[123];
^
for:
struct bink {
struct bink *a;
int X[]; // ok.
};
struct foo {
int A;
struct bink bonk;
};
struct bink A[123];
llvm-svn: 39296
struct bork {
int X[];
};
struct bink {
struct bink a;
int X[]; // ok.
};
to:
t.c:3:7: error: flexible array 'X' not allowed in otherwise empty struct
int X[];
^
t.c:7:15: error: field 'a' has incomplete type
struct bink a;
^
llvm-svn: 39295
like:
struct S { struct S {} X; };
with:
t.c:2:19: error: nested redefinition of 'struct'
struct S { struct S {} X; };
^
t.c:2:1: error: previous definition is here
struct S { struct S {} X; };
^
llvm-svn: 39292
struct blah * P;
union blah *P2;
we now emit:
t.c:2:1: error: redefinition of 'blah' with tag that does not match previous use
union blah *P2;
^
t.c:1:8: error: previous use is here
struct blah * P;
^
llvm-svn: 39275
Detect and emit errors when names are redefined in the same scope, e.g.
test/Parser/argument_redef.c, which now emits:
argument_redef.c:4:22: error: redefinition of 'A'
int foo(int A) { int A; }
^
argument_redef.c:4:13: error: previous definition is here
int foo(int A) { int A; }
^
llvm-svn: 39257
X = sizeof(int (void a));
X = sizeof(int (int, void));
X = sizeof(int (void, ...));
We now emit:
t.c:6:24: error: void argument may not have a name
X = sizeof(int (void a));
^
t.c:7:24: error: 'void' must be the first and only parameter if specified
X = sizeof(int (int, void));
^
t.c:8:19: error: 'void' must be the first and only parameter if specified
X = sizeof(int (void, ...));
^
And we pretty print this correctly (even though void isn't stored in the
arg list of the function type):
X = sizeof(int (void));
However, this approach will have to change to handle typedefs of void.
llvm-svn: 39235
This lets us pretty print stuff like this:
void foo() {
int X;
X = sizeof(void (*(*)())());
X = sizeof(int(*)(int, float, ...));
X = sizeof(void (*(int arga, void (*argb)(double Y)))(void* Z));
as:
X = sizeof(void (*(*)())())
X = sizeof(int (*)(int, float, ...))
X = sizeof(void (*(int, void (*)(double)))(void *))
Ah the wonders of 'modern' C syntax!
llvm-svn: 39232
the info. Also, call Actions.ParseParamDeclaratorType instead of
Actions.ParseDeclarator for parameter type lists: we don't want declaration
objects created when parsing a function declarator, we just want type info.
llvm-svn: 39230
parameters: build an array of ParamInfo structures and pass it to the
declarator for safe keeping (it owns the list).
Next step: actually populate the arg array with useful stuff.
llvm-svn: 39229
Chris Lattner