[cfe-users] the case of the missing label in the switch/case

folkert via cfe-users cfe-users at lists.llvm.org
Wed Nov 9 00:53:28 PST 2016


Hi,

I maybe very well not understanding something but it looks like a label
targetted by a goto, in a switch statement, gets missing: if I iterate
through the ast and emit all the stmt/expr/decls, then no label-type is
emitted.

#include <stdio.h>
 
void myfunc(int a)
{
        switch(a) {
                case 1:
                        printf("1\n");
                        goto my_label;
 
                case 2:
                        break;
 
                case 3:
my_label: // this label does not appear in the ast
                        printf("Hello, world!\n");
        }
}


any ideas?


Folkert van Heusden

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