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RedBear-OS/local/recipes/dev/libclc/source/clang/test/SemaOpenACC/loop-construct-gang-clause.cpp
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class) 
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).
2026-08-01 05:13:02 +03:00

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// RUN: %clang_cc1 %s -fopenacc -verify
struct S{};
struct Converts{
operator int();
};
template<typename T, unsigned Zero, unsigned Two, unsigned Four>
void ParallelOrOrphanTempl() {
T i;
// expected-error@+1{{'num' argument on 'gang' clause is not permitted on an orphaned 'loop' construct}}
#pragma acc loop gang(i)
for(int i = 0; i < 5; ++i);
// expected-error@+1{{'num' argument on 'gang' clause is not permitted on an orphaned 'loop' construct}}
#pragma acc loop gang(num:i)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{'num' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'parallel' compute construct}}
#pragma acc parallel
#pragma acc loop gang(i)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{'num' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'parallel' compute construct}}
#pragma acc parallel
#pragma acc loop gang(num:i)
for(int i = 0; i < 5; ++i);
// expected-error@+1{{argument to 'gang' clause dimension must be a constant expression}}
#pragma acc loop gang(dim:i)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{argument to 'gang' clause dimension must be a constant expression}}
#pragma acc parallel
#pragma acc loop gang(dim:i)
for(int i = 0; i < 5; ++i);
// expected-error@+1{{argument to 'gang' clause dimension must be 1, 2, or 3: evaluated to 0}}
#pragma acc loop gang(dim:Zero)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{argument to 'gang' clause dimension must be 1, 2, or 3: evaluated to 0}}
#pragma acc parallel
#pragma acc loop gang(dim:Zero)
for(int i = 0; i < 5; ++i);
// expected-error@+1{{argument to 'gang' clause dimension must be 1, 2, or 3: evaluated to 4}}
#pragma acc loop gang(dim:Four)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{argument to 'gang' clause dimension must be 1, 2, or 3: evaluated to 4}}
#pragma acc parallel
#pragma acc loop gang(dim:Four)
for(int i = 0; i < 5; ++i);
#pragma acc loop gang(static:i) gang(dim:Two)
for(int i = 0; i < 5; ++i);
#pragma acc parallel
#pragma acc loop gang(dim:Two) gang(static:*)
for(int i = 0; i < 5; ++i);
#pragma acc parallel
#pragma acc loop gang(dim:Two, static:i)
for(int i = 0; i < 5; ++i);
// expected-error@+4{{OpenACC 'gang' clause may have at most one 'static' argument}}
// expected-note@+3{{previous expression is here}}
// expected-error@+2{{OpenACC 'gang' clause may have at most one 'dim' argument}}
// expected-note@+1{{previous expression is here}}
#pragma acc loop gang(static:i, static:i, dim:Two, dim:1)
for(int i = 0; i < 5; ++i);
}
void ParallelOrOrphan() {
ParallelOrOrphanTempl<int, 0, 2, 4>(); // expected-note{{in instantiation of function template}}
int i;
// expected-error@+1{{'num' argument on 'gang' clause is not permitted on an orphaned 'loop' construct}}
#pragma acc loop gang(i)
for(int i = 0; i < 5; ++i);
// expected-error@+1{{'num' argument on 'gang' clause is not permitted on an orphaned 'loop' construct}}
#pragma acc loop gang(num:i)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{'num' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'parallel' compute construct}}
#pragma acc parallel
#pragma acc loop gang(i)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{'num' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'parallel' compute construct}}
#pragma acc parallel
#pragma acc loop gang(num:i)
for(int i = 0; i < 5; ++i);
// expected-error@+1{{argument to 'gang' clause dimension must be a constant expression}}
#pragma acc loop gang(dim:i)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{argument to 'gang' clause dimension must be a constant expression}}
#pragma acc parallel
#pragma acc loop gang(dim:i)
for(int i = 0; i < 5; ++i);
// expected-error@+1{{argument to 'gang' clause dimension must be 1, 2, or 3: evaluated to 0}}
#pragma acc loop gang(dim:0)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{argument to 'gang' clause dimension must be 1, 2, or 3: evaluated to 0}}
#pragma acc parallel
#pragma acc loop gang(dim:0)
for(int i = 0; i < 5; ++i);
// expected-error@+1{{argument to 'gang' clause dimension must be 1, 2, or 3: evaluated to 4}}
#pragma acc loop gang(dim:4)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{argument to 'gang' clause dimension must be 1, 2, or 3: evaluated to 4}}
#pragma acc parallel
#pragma acc loop gang(dim:4)
for(int i = 0; i < 5; ++i);
#pragma acc loop gang(static:i) gang(dim:2)
for(int i = 0; i < 5; ++i);
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:i)
for(int i = 0; i < 5; ++i);
S s;
// expected-error@+2{{OpenACC clause 'gang' requires expression of integer type ('S' invalid)}}
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:s)
for(int i = 0; i < 5; ++i);
Converts C;
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:C)
for(int i = 0; i < 5; ++i);
}
template<typename SomeS, typename SomeC, typename Int>
void StaticIsIntegralTempl() {
SomeS s;
// expected-error@+2{{OpenACC clause 'gang' requires expression of integer type ('S' invalid)}}
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:s)
for(int i = 0; i < 5; ++i);
SomeC C;
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:C)
for(int i = 0; i < 5; ++i);
Int i;
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:i)
for(int i = 0; i < 5; ++i);
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:*)
for(int i = 0; i < 5; ++i);
}
void StaticIsIntegral() {
StaticIsIntegralTempl<S, Converts, int>();// expected-note{{in instantiation of function template}}
S s;
// expected-error@+2{{OpenACC clause 'gang' requires expression of integer type ('S' invalid)}}
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:s)
for(int i = 0; i < 5; ++i);
Converts C;
#pragma acc parallel
#pragma acc loop gang(dim:2) gang(static:C)
for(int i = 0; i < 5; ++i);
}
template<unsigned I>
void SerialTempl() {
// expected-error@+2{{'num' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'serial' compute construct}}
#pragma acc serial
#pragma acc loop gang(I)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{'num' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'serial' compute construct}}
#pragma acc serial
#pragma acc loop gang(num:I)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{'dim' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'serial' compute construct}}
#pragma acc serial
#pragma acc loop gang(dim:I)
for(int i = 0; i < 5; ++i);
#pragma acc serial
#pragma acc loop gang(static:I)
for(int i = 0; i < 5; ++i);
}
void Serial() {
SerialTempl<2>();
// expected-error@+2{{'num' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'serial' compute construct}}
#pragma acc serial
#pragma acc loop gang(1)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{'num' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'serial' compute construct}}
#pragma acc serial
#pragma acc loop gang(num:1)
for(int i = 0; i < 5; ++i);
// expected-error@+2{{'dim' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'serial' compute construct}}
#pragma acc serial
#pragma acc loop gang(dim:1)
for(int i = 0; i < 5; ++i);
#pragma acc serial
#pragma acc loop gang(static:1)
for(int i = 0; i < 5; ++i);
int i;
#pragma acc serial
#pragma acc loop gang(static:i)
for(int i = 0; i < 5; ++i);
}
template<typename T>
void KernelsTempl() {
T t;
// expected-error@+2{{'dim' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'kernels' compute construct}}
#pragma acc kernels
#pragma acc loop gang(dim:t)
for(int i = 0; i < 5; ++i);
#pragma acc kernels
#pragma acc loop gang(static:t)
for(int i = 0; i < 5; ++i);
// expected-error@+3{{'num' argument to 'gang' clause not allowed on a 'loop' construct associated with a 'kernels' construct that has a 'num_gangs' clause}}
// expected-note@+1{{previous 'num_gangs' clause is here}}
#pragma acc kernels num_gangs(t)
#pragma acc loop gang(t)
for(int i = 0; i < 5; ++i);
// expected-error@+3{{'num' argument to 'gang' clause not allowed on a 'loop' construct associated with a 'kernels' construct that has a 'num_gangs' clause}}
// expected-note@+1{{previous 'num_gangs' clause is here}}
#pragma acc kernels num_gangs(t)
#pragma acc loop gang(num:t)
for(int i = 0; i < 5; ++i);
}
void Kernels() {
KernelsTempl<unsigned>();
// expected-error@+2{{'dim' argument on 'gang' clause is not permitted on a 'loop' construct associated with a 'kernels' compute construct}}
#pragma acc kernels
#pragma acc loop gang(dim:1)
for(int i = 0; i < 5; ++i);
unsigned t;
#pragma acc kernels
#pragma acc loop gang(static:t)
for(int i = 0; i < 5; ++i);
// expected-error@+3{{'num' argument to 'gang' clause not allowed on a 'loop' construct associated with a 'kernels' construct that has a 'num_gangs' clause}}
// expected-note@+1{{previous 'num_gangs' clause is here}}
#pragma acc kernels num_gangs(1)
#pragma acc loop gang(1)
for(int i = 0; i < 5; ++i);
// expected-error@+3{{'num' argument to 'gang' clause not allowed on a 'loop' construct associated with a 'kernels' construct that has a 'num_gangs' clause}}
// expected-note@+1{{previous 'num_gangs' clause is here}}
#pragma acc kernels num_gangs(1)
#pragma acc loop gang(num:1)
for(int i = 0; i < 5; ++i);
#pragma acc kernels
#pragma acc loop gang(num:1)
for(int j = 0; j < 5; ++j) {
// expected-error@+2{{loop with a 'gang' clause may not exist in the region of a 'gang' clause on a 'kernels' construct}}
// expected-note@-3{{previous 'gang' clause is here}}
#pragma acc loop gang(static:1)
for(int i = 0; i < 5; ++i);
}
#pragma acc kernels
#pragma acc loop gang(num:1)
for(int j = 0; j < 5; ++j) {
#pragma acc loop worker(1) vector(1)
for(int i = 0; i < 5; ++i);
}
#pragma acc kernels
#pragma acc loop gang(num:1)
for(int j = 0; j < 5; ++j) {
// allowed, intervening compute construct
#pragma acc serial
#pragma acc loop gang(static:1)
for(int i = 0; i < 5; ++i);
}
#pragma acc kernels
#pragma acc loop gang(num:1)
for(int i = 0; i < 5; ++i);
// OK, on a different 'loop', not in the assoc statement.
#pragma acc loop gang(static:1)
for(int i = 0; i < 5; ++i);
// expected-error@+3{{OpenACC 'gang' clause may have at most one unnamed or 'num' argument}}
// expected-note@+2{{previous expression is here}}
#pragma acc kernels
#pragma acc loop gang(5, num:1)
for(int i = 0; i < 5; ++i);
// expected-error@+3{{OpenACC 'gang' clause may have at most one unnamed or 'num' argument}}
// expected-note@+2{{previous expression is here}}
#pragma acc kernels
#pragma acc loop gang(num:5, 1)
for(int i = 0; i < 5; ++i);
// expected-error@+3{{OpenACC 'gang' clause may have at most one unnamed or 'num' argument}}
// expected-note@+2{{previous expression is here}}
#pragma acc kernels
#pragma acc loop gang(num:5, num:1)
for(int i = 0; i < 5; ++i);
}
void MaxOneEntry() {
// expected-error@+3{{OpenACC 'gang' clause may have at most one 'static' argument}}
// expected-note@+2{{previous expression is here}}
#pragma acc kernels
#pragma acc loop gang(static: 1, static:1)
for(int i = 0; i < 5; ++i);
#pragma acc kernels
#pragma acc loop gang gang(static:1)
for(int i = 0; i < 5; ++i);
}
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