54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
/* { dg-do compile } */
|
|
/* { dg-options "-fdump-rtl-cmpelim -dp" } */
|
|
/* { dg-skip-if "code quality test" { *-*-* } { "-O0" } { "" } } */
|
|
|
|
typedef signed int __attribute__ ((mode (SI))) int_t;
|
|
typedef union
|
|
{
|
|
int_t i;
|
|
struct
|
|
{
|
|
int_t h : 7;
|
|
int_t i : 18;
|
|
int_t l : 7;
|
|
} b;
|
|
}
|
|
bit_t;
|
|
|
|
int
|
|
xx_insvsi (bit_t x, int_t y)
|
|
{
|
|
int_t v;
|
|
|
|
v = x.b.i;
|
|
x.b.i = y;
|
|
if (v == 0)
|
|
return x.i;
|
|
else if (v >= 0)
|
|
return x.i + 2;
|
|
else
|
|
return x.i - 3;
|
|
}
|
|
|
|
/* Expect assembly like:
|
|
|
|
movl 4(%ap),%r0 # 50 [c=16] *movsi_2
|
|
extv $7,$18,%r0,%r1 # 51 [c=60] *extv_non_const_2_ccnz
|
|
insv 8(%ap),$7,$18,%r0 # 8 [c=16] *insv_2
|
|
jeql .L1 # 53 [c=26] *branch_ccz
|
|
jlss .L4 # 49 [c=26] *branch_ccn
|
|
addl2 $2,%r0 # 47 [c=32] *addsi3
|
|
ret # 42 [c=0] return
|
|
.L4:
|
|
subl2 $3,%r0 # 46 [c=32] *addsi3
|
|
.L1:
|
|
|
|
*/
|
|
|
|
/* { dg-final { scan-rtl-dump-times "deleting insn with uid" 2 "cmpelim" } } */
|
|
/* { dg-final { scan-assembler-not "\t(bit|cmpz?|tst). " } } */
|
|
/* { dg-final { scan-assembler "extv\[^ \]*_ccnz(/\[0-9\]+)?\n" } } */
|
|
/* { dg-final { scan-assembler "extv.*insv.*branch" } } */
|
|
/* { dg-final { scan-assembler "branch_ccn\n" } } */
|
|
/* { dg-final { scan-assembler "branch_ccz\n" } } */
|