http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60721
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu.org
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
(gdb) p debug_bb (bb)
<bb 2>:
result_5 = getenv ("SMAC_STACK_SIZE");
if (result_5 != 0B)
goto <bb 3>;
else
goto <bb 5>;
(gdb) p debug_generic_expr (cfun->decl)
init_smac
in one unit getenv is pulled in via a header leading to
extern char *getenv (const char *__name) __attribute__ ((__nothrow__ ,
__leaf__)) __attribute__ ((__nonnull__ (1))) __attribute__
((__warn_unused_result__));
(note the leaf attribute), and in the other we have
int
main ( argc, argv )
int argc;
char **argv;
{
...
extern char *getenv ();
this means that if cfun->calls_setjmp as in this case, this can make a
difference. This is verifying after IPA transforms took place.
It seems that 'leaf' is a decl attribute and thus is not preserved
via gimple_call_fntype streaming (and also cannot be set for indirect calls).
Sth for stmt fixup similar as we handle noreturn?
