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).
97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
// RUN: %clang_cc1 -triple arm64-none-linux-gnu -emit-llvm -w -o - %s | FileCheck %s
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// Check differences between the generic Itanium ABI, the AArch32 version and
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// the AArch64 version.
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////////////////////////////////////////////////////////////////////////////////
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// The ABI says that the key function is the "textually first, non-inline,
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// non-pure, virtual member function". The generic version decides this after
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// the completion of the class definition; the AArch32 version decides this at
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// the end of the translation unit.
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// We construct a class which needs a VTable here under generic ABI, but not
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// AArch32.
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// (see next section for explanation of guard)
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// CHECK: @_ZGVZ15guard_variablesiE4mine = internal global i64 0
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// CHECK: @_ZTV16CheckKeyFunction =
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struct CheckKeyFunction {
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virtual void foo();
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};
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// This is not inline when CheckKeyFunction is completed, so
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// CheckKeyFunction::foo is the key function. VTables should be emitted.
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inline void CheckKeyFunction::foo() {
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}
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////////////////////////////////////////////////////////////////////////////////
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// Guard variables only specify and use the low bit to determine status, rather
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// than the low byte as in the generic Itanium ABI. However, unlike 32-bit ARM,
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// they *are* 64-bits wide so check that in case confusion has occurred.
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class Guarded {
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public:
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Guarded(int i);
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~Guarded();
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};
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void guard_variables(int a) {
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static Guarded mine(a);
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// CHECK: [[GUARDBIT:%[0-9]+]] = and i8 {{%[0-9]+}}, 1
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// CHECK: icmp eq i8 [[GUARDBIT]], 0
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// As guards are 64-bit, these helpers should take 64-bit pointers.
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// CHECK: call i32 @__cxa_guard_acquire(ptr
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// CHECK: call void @__cxa_guard_release(ptr
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}
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////////////////////////////////////////////////////////////////////////////////
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// Member function pointers use the adj field to distinguish between virtual and
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// nonvirtual members. As a result the adjustment is shifted (if ptr was used, a
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// mask would be expected instead).
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class C {
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int a();
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virtual int b();
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};
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int member_pointer(C &c, int (C::*func)()) {
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// CHECK: ashr i64 %[[MEMPTRADJ:[0-9a-z.]+]], 1
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// CHECK: %[[ISVIRTUAL:[0-9]+]] = and i64 %[[MEMPTRADJ]], 1
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// CHECK: icmp ne i64 %[[ISVIRTUAL]], 0
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return (c.*func)();
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}
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////////////////////////////////////////////////////////////////////////////////
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// AArch64 PCS says that va_list type is based on "struct __va_list ..." in the
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// std namespace, which means it should mangle as "St9__va_list".
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// CHECK: @_Z7va_funcSt9__va_list
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void va_func(__builtin_va_list l) {
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}
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////////////////////////////////////////////////////////////////////////////////
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// AArch64 constructors (like generic Itanium, but unlike AArch32) do not return
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// "this".
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void test_constructor() {
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Guarded g(42);
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// CHECK: call void @_ZN7GuardedC1Ei
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}
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////////////////////////////////////////////////////////////////////////////////
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// In principle the AArch32 ABI allows this to be accomplished via a call to
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// __aeabi_atexit instead of __cxa_atexit. Clang doesn't make use of this at the
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// moment, but it's definitely not allowed for AArch64.
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// CHECK: call i32 @__cxa_atexit
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Guarded g(42);
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