http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54793
Frank Ch. Eigler <fche at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tromey at redhat dot com
Severity|normal |major
--- Comment #3 from Frank Ch. Eigler <fche at redhat dot com> 2013-01-18
16:01:24 UTC ---
A little longer test case (which requires a location_list rather than location
for all the parameters) shows that gdb is adversely affected by this bug too;
its prologue-finding is no help:
% cat foo2.c
int foo (int a, int b) __attribute__((noinline));
int bar (int c, int d) __attribute__((noinline));
int bar (int c, int d)
{
while (c-- > d++) ;
}
int foo (int a, int b)
{
asm volatile ("nop");
return bar (a, b);
}
int main () {
return foo (7, 4);
}
% gcc -g -O2 -mfentry foo2.c -p
% gdb a.out
(gdb) break foo
Breakpoint 1 at 0x400660: file foo2.c, line 11.
(gdb) run
Starting program: /tmp/a.out
Breakpoint 1, foo (a=<optimized out>, b=<optimized out>) at foo2.c:11
11 {
