/* Setting LOGICAL_OP_NON_SHORT_CIRCUIT to 0 leads to two conditional jumps when evaluating an && condition. VRP is not able to optimize this. */ /* { dg-do compile } */ /* { dg-options "-O2 -fdump-tree-forwprop1-details --param logical-op-non-short-circuit=1" } */ extern char *frob (void); extern _Bool testit (void); extern void oof (void); void test (int code) { char *temp = frob (); int rotate = (code == 22); if (temp == 0 && !rotate) oof (); } void test_2 (int code) { char *temp = frob (); int rotate = (code == 22); if (!rotate && temp == 0) oof (); } void test_3 (int code) { char *temp = frob (); int rotate = (code == 22); if (!rotate || temp == 0) oof (); } void test_4 (int code) { char *temp = frob (); int rotate = (code == 22); if (temp == 0 || !rotate) oof (); } void test_5 (int code) { _Bool temp = testit (); _Bool rotate = (code == 22); if (temp == 0 && !rotate) oof (); } void test_6 (int code) { _Bool temp = testit (); _Bool rotate = (code == 22); if (!rotate && temp == 0) oof (); } void test_7 (int code) { _Bool temp = testit (); _Bool rotate = (code == 22); if (!rotate || temp == 0) oof (); } void test_8 (int code) { _Bool temp = testit (); _Bool rotate = (code == 22); if (temp == 0 || !rotate) oof (); } /* ??? This used to check for 8 times transforming the combined conditional to a ordered compare. But the transform does not trigger if we transform the negated code == 22 compare to code != 22 first. It turns out if we do that we even generate better code on x86 at least. */ /* ??? As PR71762 notices this transform causes wrong-code issues in RTL with one uninitialized operand, thus it has been disabled. */ /* { dg-final { scan-tree-dump-times "simplified to if \\\(\[^ ]* \[<>\]" 4 "forwprop1" { xfail *-*-* } } } */