diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/pr42585.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/pr42585.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr42585.c b/gcc/testsuite/gcc.dg/tree-ssa/pr42585.c new file mode 100644 index 000000000..52f21fe1b --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/pr42585.c @@ -0,0 +1,40 @@ +/* { dg-do compile } */ +/* { dg-options "-O1 -fdump-tree-optimized" } */ + +struct _fat_ptr +{ + unsigned char *curr; + unsigned char *base; + unsigned char *last_plus_one; +}; +int Cyc_string_ungetc (int ignore, struct _fat_ptr *sptr); +int +Cyc_string_ungetc (int ignore, struct _fat_ptr *sptr) +{ + struct _fat_ptr *_T0; + struct _fat_ptr *_T1; + struct _fat_ptr _T2; + int _T3; + struct _fat_ptr _ans; + int _change; + + { + _T0 = sptr; + _T1 = sptr; + _T2 = *sptr; + _T3 = -1; + _ans = _T2; + _change = -1; + _ans.curr += 4294967295U; + *sptr = _ans; + return (0); + } +} + +/* The local aggregates . */ +/* Whether the structs are totally scalarized or not depends on the + MOVE_RATIO macro defintion in the back end. The scalarization will + not take place when using small values for MOVE_RATIO. */ +/* { dg-final { scan-tree-dump-times "struct _fat_ptr _ans" 0 "optimized" { target { ! "powerpc*-*-* arm-*-* sh*-*-* s390*-*-*" } } } } */ +/* { dg-final { scan-tree-dump-times "struct _fat_ptr _T2" 0 "optimized" { target { ! "powerpc*-*-* arm-*-* sh*-*-* s390*-*-*" } } } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |