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).
84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
// RUN: %clang_cc1 -Wall -Wno-unused-but-set-variable -Wshift-sign-overflow -ffreestanding -fsyntax-only -verify %s
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#include <limits.h>
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#define WORD_BIT (sizeof(int) * CHAR_BIT)
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enum {
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X = 1 << 0,
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Y = 1 << 1,
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Z = 1 << 2
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};
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void test(void) {
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char c;
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c = 0 << 0;
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c = 0 << 1;
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c = 1 << 0;
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c = 1 << -0;
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c = 1 >> -0;
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c = 1 << -1; // expected-warning {{shift count is negative}}
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c = 1 >> -1; // expected-warning {{shift count is negative}}
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c = 1 << (unsigned)-1; // expected-warning {{shift count >= width of type}}
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// expected-warning@-1 {{implicit conversion}}
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c = 1 >> (unsigned)-1; // expected-warning {{shift count >= width of type}}
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c = 1 << c;
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c <<= 0;
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c >>= 0;
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c <<= 1;
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c >>= 1;
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c <<= -1; // expected-warning {{shift count is negative}}
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c >>= -1; // expected-warning {{shift count is negative}}
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c <<= 999999; // expected-warning {{shift count >= width of type}}
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c >>= 999999; // expected-warning {{shift count >= width of type}}
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c <<= CHAR_BIT; // expected-warning {{shift count >= width of type}}
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c >>= CHAR_BIT; // expected-warning {{shift count >= width of type}}
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c <<= CHAR_BIT+1; // expected-warning {{shift count >= width of type}}
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c >>= CHAR_BIT+1; // expected-warning {{shift count >= width of type}}
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(void)((long)c << CHAR_BIT);
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int i;
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i = 1 << (WORD_BIT - 2);
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i = 2 << (WORD_BIT - 1); // expected-warning {{bits to represent, but 'int' only has}}
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i = 1 << (WORD_BIT - 1); // expected-warning {{sets the sign bit of the shift expression}}
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i = -1 << (WORD_BIT - 1); // expected-warning {{shifting a negative signed value is undefined}}
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i = -1 << 0; // expected-warning {{shifting a negative signed value is undefined}}
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i = 0 << (WORD_BIT - 1);
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i = (char)1 << (WORD_BIT - 2);
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unsigned u;
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u = 1U << (WORD_BIT - 1);
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u = 5U << (WORD_BIT - 1);
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long long int lli;
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lli = INT_MIN << 2; // expected-warning {{shifting a negative signed value is undefined}}
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lli = 1LL << (sizeof(long long) * CHAR_BIT - 2);
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}
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#define a 0
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#define ashift 8
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enum { b = (a << ashift) };
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// Don't warn for negative shifts in code that is unreachable.
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void test_pr5544(void) {
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(void) (((1) > 63 && (1) < 128 ? (((unsigned long long) 1)<<((1)-64)) : (unsigned long long) 0)); // no-warning
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}
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void test_shift_too_much(char x) {
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if (0)
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(void) (x >> 80); // no-warning
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(void) (x >> 80); // expected-warning {{shift count >= width of type}}
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}
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typedef unsigned vec16 __attribute__((vector_size(16)));
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typedef unsigned vec8 __attribute__((vector_size(8)));
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void vect_shift_1(vec16 *x) { *x = *x << 4; }
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void vect_shift_2(vec16 *x, vec16 y) { *x = *x << y; }
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void vect_shift_3(vec16 *x, vec8 y) {
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*x = *x << y; // expected-error {{vector operands do not have the same number of elements}}
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}
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