https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106861
Bug ID: 106861
Summary: [12/13 Regression] ICE in add_cfi_args_size, at
dwarf2cfi.cc:501
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started with r12 between 20210822 and 20210905, at -O0,
reduced from llvm-project-llvmorg-14.0.6/clang/test/CodeGen/ms_abi.c :
$ cat z1.c
struct foo {
int x;
float y;
char z;
};
void __attribute__((ms_abi)) f1(void);
void __attribute__((sysv_abi)) f2(void);
void f3(void) {
f1();
f2();
}
void __attribute__((sysv_abi)) f6(__builtin_ms_va_list ap) {
int b = __builtin_va_arg(ap, int);
double _Complex c = __builtin_va_arg(ap, double _Complex);
struct foo d = __builtin_va_arg(ap, struct foo);
__builtin_ms_va_list ap2;
__builtin_ms_va_copy(ap2, ap);
}
$ gcc-13-20220904 -c z1.c -mabi=ms -ftrapv -fnon-call-exceptions
-fprofile-generate
during RTL pass: dwarf2
z1.c: In function 'f6':
z1.c:18:1: internal compiler error: in add_cfi_args_size, at dwarf2cfi.cc:501
18 | }
| ^
0x9f7350 add_cfi_args_size
../../gcc/dwarf2cfi.cc:501
0x9fa82f connect_traces
../../gcc/dwarf2cfi.cc:3082
0x9fa82f execute_dwarf2_frame
../../gcc/dwarf2cfi.cc:3305
0x9fa82f execute
../../gcc/dwarf2cfi.cc:3794
