vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
60 lines
2.9 KiB
C++
60 lines
2.9 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
|
|
// RUN: %clang_cc1 -fsyntax-only -verify -fexperimental-new-constant-interpreter %s
|
|
|
|
__attribute__((noreturn)) extern void bar();
|
|
|
|
int test_no_warn(int x) {
|
|
if (x) {
|
|
if (__builtin_expect_with_probability(1, 1, 1))
|
|
bar();
|
|
} else {
|
|
return 0;
|
|
}
|
|
} // should not emit warn "control may reach end of non-void function" here since expr is constantly true, so the "if(__bui..)" should be constantly true condition and be ignored
|
|
|
|
template <int b> void tempf() {
|
|
static_assert(b == 1, "should be evaluated as 1"); // should not have error here
|
|
}
|
|
|
|
constexpr int constf() {
|
|
return __builtin_expect_with_probability(1, 1, 1);
|
|
}
|
|
|
|
void foo() {
|
|
tempf<__builtin_expect_with_probability(1, 1, 1)>();
|
|
constexpr int f = constf();
|
|
static_assert(f == 1, "should be evaluated as 1"); // should not have error here
|
|
}
|
|
|
|
extern int global;
|
|
|
|
struct S {
|
|
static constexpr float prob = 0.7;
|
|
};
|
|
|
|
template<typename T>
|
|
void expect_taken(int x) {
|
|
if (__builtin_expect_with_probability(x > 0, 1, T::prob)) {
|
|
global++;
|
|
}
|
|
}
|
|
|
|
void test(int x, double p) { // expected-note {{declared here}}
|
|
bool dummy;
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, 0.9);
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, 1.1); // expected-error {{probability argument to __builtin_expect_with_probability is outside the range [0.0, 1.0]}}
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, -1); // expected-error {{probability argument to __builtin_expect_with_probability is outside the range [0.0, 1.0]}}
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, p); // expected-error {{probability argument to __builtin_expect_with_probability must be constant floating-point expression}} expected-note {{function parameter 'p'}}
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, "aa"); // expected-error {{cannot initialize a parameter of type 'double' with an lvalue of type 'const char[3]'}}
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, __builtin_nan("")); // expected-error {{probability argument to __builtin_expect_with_probability is outside the range [0.0, 1.0]}}
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, __builtin_inf()); // expected-error {{probability argument to __builtin_expect_with_probability is outside the range [0.0, 1.0]}}
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, -0.0);
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, 1.0 + __DBL_EPSILON__); // expected-error {{probability argument to __builtin_expect_with_probability is outside the range [0.0, 1.0]}}
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, -__DBL_DENORM_MIN__); // expected-error {{probability argument to __builtin_expect_with_probability is outside the range [0.0, 1.0]}}
|
|
constexpr double pd = 0.7;
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, pd);
|
|
constexpr int pi = 1;
|
|
dummy = __builtin_expect_with_probability(x > 0, 1, pi);
|
|
expect_taken<S>(x);
|
|
}
|