1 /* { dg-do compile } */ 2 /* { dg-options "-O -fno-tree-sra -fdump-tree-fre1-stats" } */ 3 4 union loc { 5 unsigned reg; 6 signed offset; 7 }; __frame_state_for2(volatile char * state_in)8void __frame_state_for2 (volatile char *state_in) 9 { 10 union loc fs; 11 { 12 *state_in = fs.reg; 13 *state_in = fs.offset; 14 } 15 } __frame_state_for1(volatile char * state_in)16void __frame_state_for1 (volatile char *state_in) 17 { 18 union loc fs; 19 for (;;) 20 { 21 *state_in = fs.offset; 22 *state_in = fs.reg; 23 } 24 } 25 26 /* { dg-final { scan-tree-dump-times "Eliminated: 2" 2 "fre1" } } */ 27 /* { dg-final { scan-tree-dump-times "Insertions: 1" 2 "fre1" } } */ 28