https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85984
Bug ID: 85984
Summary: ICE in create_pseudo_cfg, at dwarf2cfi.c:2874
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Affects versions 8/9 at -O[23] (no better example found).
Changed between 20170723 and 20170820.
$ cat z1.c
int fn1 (void);
void __attribute__((naked))
fn2 (void)
{
if (!fn1())
abort ();
}
void fn3 (void)
{
fn2 ();
}
$ gcc-9-20180527 -c z1.c -O2
z1.c: In function 'fn2':
z1.c:6:5: warning: implicit declaration of function 'abort'
[-Wimplicit-function-declaration]
abort ();
^~~~~
z1.c:6:5: warning: incompatible implicit declaration of built-in function
'abort'
z1.c:6:5: note: include '<stdlib.h>' or provide a declaration of 'abort'
z1.c:1:1:
+#include <stdlib.h>
int fn1 (void);
z1.c:6:5:
abort ();
^~~~~
during RTL pass: dwarf2
z1.c:7:1: internal compiler error: in create_pseudo_cfg, at dwarf2cfi.c:2874
}
^
0x7cb7a7 create_pseudo_cfg
../../gcc/dwarf2cfi.c:2874
0x7cb7a7 execute_dwarf2_frame
../../gcc/dwarf2cfi.c:3049
0x7cb7a7 execute
../../gcc/dwarf2cfi.c:3540
