// RUN: %clang_cc1 -fsyntax-only -Wlogical-not-parentheses -verify %s
// RUN: %clang_cc1 -fsyntax-only -Wlogical-not-parentheses -fdiagnostics-parseable-fixits %s 2>&1 | FileCheck %s
int getInt(void);
int test1(int i1, int i2) {
int ret;
ret = !i1 == i2;
// expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")"
ret = !i1 != i2;
//expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")"
ret = !i1 < i2;
//expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:17-[[line]]:17}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")"
ret = !i1 > i2;
//expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:17-[[line]]:17}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")"
ret = !i1 <= i2;
//expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")"
ret = !i1 >= i2;
//expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:12-[[line]]:12}:")"
ret = i1 == i2;
ret = i1 != i2;
ret = i1 < i2;
ret = i1 > i2;
ret = i1 <= i2;
ret = i1 >= i2;
// Warning silenced by parens.
ret = (!i1) == i2;
ret = (!i1) != i2;
ret = (!i1) < i2;
ret = (!i1) > i2;
ret = (!i1) <= i2;
ret = (!i1) >= i2;
ret = !getInt() == i1;
// expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:24-[[line]]:24}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:18-[[line]]:18}:")"
ret = (!getInt()) == i1;
return ret;
}
enum E {e1, e2};
enum E getE(void);
int test2 (enum E e) {
int ret;
ret = e == e1;
ret = e == getE();
ret = getE() == e1;
ret = getE() == getE();
ret = !e == e1;
// expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:17-[[line]]:17}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:11-[[line]]:11}:")"
ret = !e == getE();
// expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:21-[[line]]:21}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:11-[[line]]:11}:")"
ret = !getE() == e1;
// expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:22-[[line]]:22}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:16-[[line]]:16}:")"
ret = !getE() == getE();
// expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:9: warning
// CHECK: to evaluate the comparison first
// CHECK: fix-it:"{{.*}}":{[[line]]:10-[[line]]:10}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:26-[[line]]:26}:")"
// CHECK: to silence this warning
// CHECK: fix-it:"{{.*}}":{[[line]]:9-[[line]]:9}:"("
// CHECK: fix-it:"{{.*}}":{[[line]]:16-[[line]]:16}:")"
ret = !(e == e1);
ret = !(e == getE());
ret = !(getE() == e1);
ret = !(getE() == getE());
ret = (!e) == e1;
ret = (!e) == getE();
ret = (!getE()) == e1;
ret = (!getE()) == getE();
return ret;
}
int PR16673(int x) {
int ret;
// Make sure we don't emit a fixit for the left paren, but not the right paren.
#define X(x) x
ret = X(!x == 1 && 1);
// expected-warning@-1 {{logical not is only applied to the left hand side of this comparison}}
// expected-note@-2 {{add parentheses after the '!' to evaluate the comparison first}}
// expected-note@-3 {{add parentheses around left hand side expression to silence this warning}}
// CHECK: warn-logical-not-compare.c:[[line:[0-9]*]]:11: warning
// CHECK: to evaluate the comparison first
// CHECK-NOT: fix-it
// CHECK: to silence this warning
// CHECK-NOT: fix-it
return ret;
}
int compare_pointers(int* a, int* b) {
int ret;
ret = !!a == !!b;
ret = !!a != !!b;
return ret;
}
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