mirrors/gcc
0
0
Fork 0
mirror of https://gcc.gnu.org/git/gcc.git synced 2024-12-28 13:34:59 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Forgot to add file in last commit.

Browse Source 
From-SVN: r204802
This commit is contained in:
Ulrich Weigand 2013-11-14 18:30:19 +00:00
parent 8c8b21e4f7
commit 4f883df12f
1 changed files with 54 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
gcc/testsuite/g++.dg/eh/ppc64-sighandle-cr.C Normal file
View File

@ -0,0 +1,54 @@
// { dg-do run { target { powerpc64*-*-linux* } } }
// { dg-options "-fexceptions -fnon-call-exceptions" }
#include <signal.h>
#include <stdlib.h>
#include <fenv.h>
#define SET_CR(R,V) __asm__ __volatile__ ("mtcrf %0,%1" : : "n" (1<<(7-R)), "r" (V<<(4*(7-R))) : "cr" #R)
#define GET_CR(R) ({ int tmp; __asm__ __volatile__ ("mfcr %0" : "=r" (tmp)); (tmp >> 4*(7-R)) & 15; })
void sighandler (int signo, siginfo_t * si, void * uc)
{
SET_CR(2, 3);
SET_CR(3, 2);
SET_CR(4, 1);
throw 0;
}
float test (float a, float b) __attribute__ ((__noinline__));
float test (float a, float b)
{
float x;
asm ("mtcrf %1,%2" : "=f" (x) : "n" (1 << (7-3)), "r" (0), "0" (b) : "cr3");
return a / x;
}
int main ()
{
struct sigaction sa;
int status;
sa.sa_sigaction = sighandler;
sa.sa_flags = SA_SIGINFO;
status = sigaction (SIGFPE, & sa, NULL);
feenableexcept (FE_DIVBYZERO);
SET_CR(2, 6);
SET_CR(3, 9);
SET_CR(4, 12);
try {
test (1, 0);
}
catch (...) {
return GET_CR(2) != 6 || GET_CR(3) != 9 || GET_CR(4) != 12;
}
return 1;
}