URL
https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk
Subversion Repositories openrisc_me
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [powerpc/] [spe-unwind-1.c] - Rev 322
Compare with Previous | Blame | View Log
/* Verify that unwinding can find SPE registers in signal frames. */ /* Origin: Joseph Myers <joseph@codesourcery.com> */ /* { dg-do run { target { powerpc*-*-linux* && powerpc_spe } } } */ /* { dg-options "-fexceptions -fnon-call-exceptions -O2" } */ #include <unwind.h> #include <stdlib.h> #include <signal.h> #include <string.h> int count; char *null; int found_reg; typedef int v2si __attribute__((__vector_size__(8))); v2si v1 = { 123, 234 }; v2si v2 = { 345, 456 }; static _Unwind_Reason_Code force_unwind_stop (int version, _Unwind_Action actions, _Unwind_Exception_Class exc_class, struct _Unwind_Exception *exc_obj, struct _Unwind_Context *context, void *stop_parameter) { unsigned int reg; if (actions & _UA_END_OF_STACK) abort (); if (_Unwind_GetGR (context, 1215) == 123) found_reg = 1; return _URC_NO_REASON; } static void force_unwind () { struct _Unwind_Exception *exc = malloc (sizeof (*exc)); memset (&exc->exception_class, 0, sizeof (exc->exception_class)); exc->exception_cleanup = 0; #ifndef __USING_SJLJ_EXCEPTIONS__ _Unwind_ForcedUnwind (exc, force_unwind_stop, 0); #else _Unwind_SjLj_ForcedUnwind (exc, force_unwind_stop, 0); #endif abort (); } static void counter (void *p __attribute__((unused))) { ++count; } static void handler (void *p __attribute__((unused))) { if (count != 2) abort (); if (!found_reg) abort (); exit (0); } static int __attribute__((noinline)) fn5 () { char dummy __attribute__((cleanup (counter))); force_unwind (); return 0; } static void fn4 (int sig) { char dummy __attribute__((cleanup (counter))); /* Clobber high part without compiler's knowledge so the only saved copy is from the signal frame. */ asm volatile ("evmergelo 15,15,15"); fn5 (); null = NULL; } static void fn3 () { abort (); } static int __attribute__((noinline)) fn2 () { register v2si r15 asm("r15"); r15 = v1; asm volatile ("" : "+r" (r15)); *null = 0; fn3 (); return 0; } static int __attribute__((noinline)) fn1 () { signal (SIGSEGV, fn4); signal (SIGBUS, fn4); fn2 (); return 0; } static int __attribute__((noinline)) fn0 () { char dummy __attribute__((cleanup (handler))); fn1 (); null = 0; return 0; } int main() { fn0 (); abort (); }