File: cmpelim-eq-subdf.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A12.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 959,712 kB
  • sloc: cpp: 3,275,382; ansic: 2,061,766; ada: 840,956; f90: 208,513; makefile: 76,132; asm: 73,433; xml: 50,448; exp: 34,146; sh: 32,436; objc: 15,637; fortran: 14,012; python: 11,991; pascal: 6,787; awk: 4,779; perl: 3,054; yacc: 338; ml: 285; lex: 201; haskell: 122
file content (29 lines) | stat: -rw-r--r-- 739 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
 
/* { dg-do compile } */
/* { dg-options "-fdump-rtl-cmpelim -dp" } */
/* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */

typedef float __attribute__ ((mode (DF))) float_t;

float_t
eq_subdf (float_t x, float_t y)
{
  x -= y;
  if (x == 0)
    return x;
  else
    return x + 2;
}

/* Expect assembly like:

	subd3 12(%ap),4(%ap),%r0	# 35	[c=68]  *subdf3_ccz/1
	jeql .L1			# 37	[c=26]  *branch_ccz
	addd2 $0d2.0e+0,%r0		# 34	[c=56]  *adddf3/0
.L1:

 */

/* { dg-final { scan-rtl-dump-times "deleting insn with uid" 1 "cmpelim" } } */
/* { dg-final { scan-assembler-not "\t(bit|cmpz?|tst). " } } */
/* { dg-final { scan-assembler "subdf\[^ \]*_ccz(/\[0-9\]+)?\n" } } */
/* { dg-final { scan-assembler "branch_ccz\n" } } */