[Bug c/60784] Spurious -Wmissing-field-initializers warning for anonymous structure

[cb at cebix dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60784

Christian Bauer  changed:

   What|Removed |Added

 CC||cb at cebix dot net

--- Comment #9 from Christian Bauer  ---
There still appears to be a problem here, even with GCC 6.2.1 (gcc-6 (SUSE
Linux) 6.2.1 20160826 on x86_64):

//
gcc -Wextra warn.c -o /dev/null
//
struct foo {
char x;
struct {
char a;
char b;
};
};

int main(void) {
struct foo test[1] = {
[0].x = 1,
[0].a = 2,
[0].b = 3,
};

return test[0].a == 2;
}
///

Output:
warn.c: In function ‘main’:
warn.c:12:9: warning: missing initializer for field ‘({anonymous})’ of ‘struct
foo’ [-Wmissing-field-initializers]
 [0].a = 2,
 ^
warn.c:6:5: note: ‘({anonymous})’ declared here
 };

Interestingly, changing "[0].x = 1" to "[0].x = 0" makes the warning disappear.

[Bug testsuite/60487] FAIL: gcc.dg/tree-prof/crossmodule-indircall-1a.c compilation, -fprofile-generate -D_PROFILE_GENERATE

[cb at cebix dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60487

Christian Bauer  changed:

   What|Removed |Added

 CC||cb at cebix dot net

--- Comment #1 from Christian Bauer  ---
This test case also fails when building GCC 4.9.2 on x86_64-unknown-linux:

Executing on host: /tmp/gcc-build/gcc/xgcc -B/tmp/gcc-build/gcc/
/tmp/gcc-4.9.2/gcc/testsuite/gcc.dg/tree-prof/crossmodule-indircall-1a.c 
-fno-diagnostics-show-caret -fdiagnostics-color=never  
/tmp/gcc-4.9.2/gcc/testsuite/gcc.dg/tree-prof/crossmodule-indircall-1a.c  
-fprofile-generate -D_PROFILE_GENERATE  -lm   -m32 -o
/tmp/gcc-build/gcc/testsuite/gcc/crossmodule-indircall-1a.x01(timeout =
300)
spawn /tmp/gcc-build/gcc/xgcc -B/tmp/gcc-build/gcc/
/tmp/gcc-4.9.2/gcc/testsuite/gcc.dg/tree-prof/crossmodule-indircall-1a.c
-fno-diagnostics-show-caret -fdiagnostics-color=never
/tmp/gcc-4.9.2/gcc/testsuite/gcc.dg/tree-prof/crossmodule-indircall-1a.c
-fprofile-generate -D_PROFILE_GENERATE -lm -m32 -o
/tmp/gcc-build/gcc/testsuite/gcc/crossmodule-indircall-1a.x01
/tmp/ccze6Bo8.o: In function `main':
crossmodule-indircall-1a.c:(.text+0x0): multiple definition of `main'
/tmp/cchSmBQj.o:crossmodule-indircall-1a.c:(.text+0x0): first defined here
collect2: error: ld returned 1 exit status
compiler exited with status 1