modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/pr45695.c (about) 1 /* PR rtl-optimization/45695 */ 2 3 extern void abort (void); 4 5 __attribute__((noinline)) void 6 g (int x) 7 { 8 asm volatile ("" : "+r" (x)); 9 } 10 11 __attribute__((noinline)) int 12 f (int a, int b, int d) 13 { 14 int r = -1; 15 b += d; 16 if (d == a) 17 r = b - d; 18 g (b); 19 return r; 20 } 21 22 int 23 main (void) 24 { 25 int l; 26 asm ("" : "=r" (l) : "0" (0)); 27 if (f (l + 0, l + 1, l + 4) != -1) 28 abort (); 29 if (f (l + 4, l + 1, l + 4) != 1) 30 abort (); 31 return 0; 32 }