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/* PR tree-optimization/102738 */
/* { dg-options "-O2 -fdump-tree-evrp" } */
/* { dg-do compile { target int128 } } */
/* Remove arithmetic shift right when the LHS is known to be 0 or -1. */
int a1(__int128 f, int g)
{
/* Leaves f >> 127. */
return (f >> 127) >> g;
}
int a2(int f, int g)
{
/* Leaves f >> 31. */
return (f >> 31) >> g;
}
int a3(int f, int g)
{
if (f == 0 || f == -1)
return f >> g;
__builtin_unreachable();
}
int a4(int f, int g)
{
if (f == 0 || f == 1)
return (-f) >> g;
__builtin_unreachable();
}
int a5(int f, int g)
{
if (f == 0 || f == 1)
return (f-1) >> g;
return 0;
}
int a6(int f, int g)
{
if (f == 6 || f == 7)
return (f-7) >> g;
__builtin_unreachable();
}
/* { dg-final { scan-tree-dump-times " >> 127" 1 "evrp" } } */
/* { dg-final { scan-tree-dump-times " >> 31" 1 "evrp" } } */
/* { dg-final { scan-tree-dump-times " >> " 2 "evrp" } } */
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