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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
void bar (void);
void
foo(unsigned int abc123)
{
unsigned int xyzpdq = (1 << abc123);
if ((xyzpdq & 0x800) != 0)
bar();
}
void
baz(unsigned int abc123)
{
unsigned int xyzpdq = (1 << abc123);
if ((xyzpdq & 0x800) == 0)
bar();
}
/* What we want to verify is that the bit test against xyzpdq is
replaced with a test against abc123 which avoids the shifting
and bit ops. */
/* { dg-final { scan-tree-dump-not "xyzpdq" "optimized"} } */
/* { dg-final { scan-tree-dump-times "if .abc123" 2 "optimized"} } */
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