File: ssa-dse-26.c

package info (click to toggle)
gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 680,956 kB
  • sloc: ansic: 3,237,715; cpp: 896,882; ada: 772,854; f90: 144,254; asm: 68,788; makefile: 67,456; sh: 29,743; exp: 28,045; objc: 15,273; fortran: 11,885; python: 7,369; pascal: 5,375; awk: 3,725; perl: 2,872; yacc: 316; xml: 311; ml: 285; lex: 198; haskell: 122
file content (34 lines) | stat: -rw-r--r-- 861 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
 
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-dse1-details -fno-short-enums" } */

enum constraint_expr_type
{
  SCALAR, DEREF, ADDRESSOF
};
typedef struct constraint_expr
{
  enum constraint_expr_type type;
  unsigned int var;
  long offset;
} constraint_expr ;
typedef struct constraint
{
  struct constraint_expr lhs;
  struct constraint_expr rhs;
} constraint;
static _Bool
constraint_expr_equal (struct constraint_expr x, struct constraint_expr y)
{
  return x.type == y.type && x.var == y.var && x.offset == y.offset;
}

_Bool
constraint_equal (struct constraint a, struct constraint b)
{
  return constraint_expr_equal (a.lhs, b.lhs)
    && constraint_expr_equal (a.rhs, b.rhs);
}

/* { dg-final { scan-tree-dump-times "Deleted dead store: x = " 1 "dse1" } } */
/* { dg-final { scan-tree-dump-times "Deleted dead store: y = " 1 "dse1" } } */