File: Wstrict-aliasing-converted-assigned.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 (14 lines) | stat: -rw-r--r-- 473 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
/* { dg-do compile } */
/* { dg-options "-O2 -Wstrict-aliasing -fstrict-aliasing" } */


int foo()
{
  int i;
  *(long*)&i = 0;  /* { dg-warning "type-punn" "type-punn" } */
  /* These messages are only expected for lp64, but fail there.  When they
     pass for lp64, replace "xfail *-*-*" with "target lp64".  */
  /* { dg-message "does break strict-aliasing" "break" { xfail *-*-* } .-3 } */
  /* { dg-message "initialized" "init" { xfail *-*-* } .-4 } */
  return i;
}