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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [max-1.c] - Rev 305
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/* PR middle-end/18548 */ /* Test case reduced by Andrew Pinski <pinskia@physics.uc.edu> */ /* { dg-do run } */ /* { dg-options "-O1 " } */ /* Option -fno-tree-lrs removed By Andrew MacLeod since it is no longer supported in the compiler beginning with GCC 4.3. */ /* m32c has varying sized pointers */ /* { dg-skip-if "" { "m32c-*-*" } { "*" } { "-mcpu=m32c" "-mcpu=m32cm" } } */ /* Kludge to make it signed. */ #define unsigned signed __extension__ typedef __SIZE_TYPE__ ssize_t; #undef unsigned extern void abort (void); ssize_t fff[10]; void f(ssize_t a, ssize_t b) { ssize_t crcc = b; ssize_t d = *((ssize_t*)(a+1)); int i; a = d >= b? d:b; for(i=0;i<10;i++) fff[i] = a; } /* The variable a cannot be a local variable as we get better aliasing now and decide that the store to a is dead. The better aliasing comes from better representation of pointer arithmetic. */ ssize_t a = 10; int main(void) { int i; f((ssize_t)(&a)-1,0); for(i = 0;i<10;i++) if (fff[i]!=10) abort (); return 0; }
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