File: 20150120-2.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 (32 lines) | stat: -rw-r--r-- 516 bytes parent folder | download | duplicates (6) 
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
 
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-original" } */

/* x & ~(x & y) -> x & ~y */
int fn1 (int x, int y)
{
	return x & ~(x & y);
}
int fn2 (int x, int y)
{
	return ~(x & y) & x;
}
int fn3 (int x, int y)
{
	return x & ~(y & x);
}
int fn4 (int x, int y)
{
	return ~(y & x) & x;
}
int fn5 (int z)
{
	return z & ~(z & 3);
}
int fn6 (int z)
{
	return ~(z & 3) & z;
}


/* { dg-final { scan-tree-dump-times "~y & x" 4 "original" } } */
/* { dg-final { scan-tree-dump-times "z & -4" 2 "original" } } */