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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O" } */
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3 /* { dg-bogus "internal compiler error" "ICE" { target *-*-* } 0 } */
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4
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5 #undef SKIP
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6 #define ASMDECL __asm (REG);
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7 #define CLOBBER_LIST : REG
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8 #define INP_CLOBBER_LIST : CLOBBER_LIST
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9 #if defined (__alpha__)
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10 # define REG "$1"
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11 #elif defined (__CRIS__) || defined (__sh__)
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12 # define REG "r10"
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13 #elif defined (__hppa__)
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14 # define REG "%r10"
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15 #elif defined (__i386__)
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16 # define REG "%eax"
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17 #elif defined (__MMIX__)
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18 # define REG "$8"
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19 #elif defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) \
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20 || defined (__POWERPC__) || defined (PPC) || defined (_IBMR2)
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21 # define REG "6"
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22 #elif defined (__x86_64__)
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23 # define REG "rax"
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24 #elif defined (__m68k__)
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25 # define REG "%d0"
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26 #else
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27 /* Make this test harmless for any target not recognized above. */
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28 # define SKIP 1
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29 #endif
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30
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31 #ifndef SKIP
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32
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33 struct A
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34 {
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35 int a;
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36 };
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37
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38 struct B
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39 {
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40 struct A b[3];
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41 };
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42
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43 struct C
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44 {
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45 struct B c;
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46 };
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47
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48 void bug (void)
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49 {
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50 register char* dst ASMDECL;
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51 __asm__ ("":"=g"(*dst): : REG);
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52 }
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53
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54 /* The tree optimizers currently prevent us from finding an overlap -
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55 we end up using a copy of dst rather than dst.
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56 But at least make sure we don't get an ICE. */
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57 void bug2 (void)
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58 {
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59 register char* dst ASMDECL;
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60 __asm__ ("": :"g"(*dst) CLOBBER_LIST);
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61 }
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62
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63 void
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64 foo (void)
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65 {
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66 register struct C *dst ASMDECL;
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67 __asm__ ("" : "=g"(dst->c.b[1].a) INP_CLOBBER_LIST);
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68 }
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69
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70 #else
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71
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72 int main ()
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73 {
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74 return 0;
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75 }
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76
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77 #endif
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78
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