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RedBear-OS/local/recipes/dev/libclc/source/clang/test/SemaOpenACC/loop-construct-tile-clause.cpp
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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
constexpr int three() { return 3; }
constexpr int one() { return 1; }
constexpr int neg() { return -1; }
constexpr int zero() { return 0; }
struct NotConstexpr {
constexpr NotConstexpr(){};
operator int(){ return 1; }
};
struct ConvertsNegative {
constexpr ConvertsNegative(){};
constexpr operator int(){ return -1; }
};
struct ConvertsOne{
constexpr ConvertsOne(){};
constexpr operator int(){ return 1; }
};
struct ConvertsThree{
constexpr ConvertsThree(){};
constexpr operator int(){ return 3; }
};
template<typename T, int Val>
void negative_zero_constexpr_templ() {
// expected-error@+1 2{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc loop tile(*, T{})
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc loop tile(Val, *)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc loop tile(zero(), *)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
}
void negative_zero_constexpr() {
negative_zero_constexpr_templ<int, 1>(); // expected-note{{in instantiation of function template specialization}}
negative_zero_constexpr_templ<int, -1>(); // expected-note{{in instantiation of function template specialization}}
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc loop tile(0, *)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc loop tile(1, 0)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc loop tile(1, -1)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc loop tile(-1, 0)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to 0}}
#pragma acc loop tile(zero(), 0)
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc loop tile(1, neg())
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{OpenACC 'tile' clause size expression must be an asterisk or a constant expression}}
#pragma acc loop tile(NotConstexpr{})
for(int i = 0; i < 5; ++i);
// expected-error@+1{{OpenACC 'tile' clause size expression must be positive integer value, evaluated to -1}}
#pragma acc loop tile(1, ConvertsNegative{})
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
#pragma acc loop tile(*, ConvertsOne{})
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
}
template<unsigned One>
void only_for_loops_templ() {
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop tile(One)
// expected-error@+1{{OpenACC 'loop' construct can only be applied to a 'for' loop}}
while(true);
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop tile(One)
// expected-error@+1{{OpenACC 'loop' construct can only be applied to a 'for' loop}}
do {} while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile(One, 2) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
// expected-error@+1{{while loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile(One, 2) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
// expected-error@+1{{do loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
do{}while(true);
}
void only_for_loops() {
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop tile(1)
// expected-error@+1{{OpenACC 'loop' construct can only be applied to a 'for' loop}}
while(true);
// expected-note@+1{{'loop' construct is here}}
#pragma acc loop tile(1)
// expected-error@+1{{OpenACC 'loop' construct can only be applied to a 'for' loop}}
do {} while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile(1, 2) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
// expected-error@+1{{while loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile(1, 2) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
// expected-error@+1{{do loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
do{}while(true);
}
void only_one_on_loop() {
// expected-error@+2{{OpenACC 'tile' clause cannot appear more than once on a 'loop' directive}}
// expected-note@+1{{previous 'tile' clause is here}}
#pragma acc loop tile(1) tile(1)
for(int i = 0; i < 5; ++i);
}
template<unsigned Val>
void depth_too_high_templ() {
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile (Val, *, Val) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile (Val, *, Val) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{while loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile (Val, *, Val) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{do loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
do{}while(true);
int Arr[Val+5];
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile (Val, *, Val) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(auto x : Arr)
// expected-error@+1{{while loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
while(true)
for(int j = 0; j < 5; ++j);
#pragma acc loop tile (Val, *, Val)
for(int i = 0; i < 5; ++i)
for(auto x : Arr)
for(int j = 0; j < 5; ++j)
while(true);
}
void depth_too_high() {
depth_too_high_templ<3>();
int Arr[5];
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile (1, *, 3) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile (1, *, 3) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{while loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile (1, *, 3) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{do loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
do{}while(true);
// expected-error@+1{{'tile' clause specifies a loop count greater than the number of available loops}}
#pragma acc loop tile (1, *, 3) // expected-note 2{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i)
for(int j = 0; j < 5; ++j)
// expected-error@+1{{while loop cannot appear in intervening code of a 'loop' with a 'tile' clause}}
while(true)
for(int j = 0; j < 5; ++j);
#pragma acc loop tile (1, *, 3)
for(int i = 0; i < 5; ++i)
for(auto x : Arr)
for(int j = 0; j < 5; ++j)
while(true);
}
template<unsigned Val>
void not_single_loop_templ() {
int Arr[Val];
#pragma acc loop tile (Val, *, 3) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
for (auto x : Arr)
for(int k = 0; k < 5; ++k);
// expected-error@+1{{more than one for-loop in a loop associated with OpenACC 'loop' construct with a 'tile' clause}}
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
}
void not_single_loop() {
not_single_loop_templ<3>(); // no diagnostic, was diagnosed in phase 1.
int Arr[5];
#pragma acc loop tile (1, *, 3)// expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
for (auto x : Arr)
for(int k = 0; k < 5; ++k);
// expected-error@+1{{more than one for-loop in a loop associated with OpenACC 'loop' construct with a 'tile' clause}}
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
}
template<unsigned Val>
void no_other_directives_templ() {
int Arr[Val];
#pragma acc loop tile (Val, *, 3) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
for (auto x : Arr) {
// expected-error@+1{{OpenACC 'serial' construct cannot appear in intervening code of a 'loop' with a 'tile' clause}}
#pragma acc serial
;
for(int j = 0; j < 5; ++j);
}
}
// OK, in innermost
#pragma acc loop tile (Val, *, 3)
for(int i = 0; i < 5; ++i) {
for(int j = 0; j < 5; ++j) {
for (auto x : Arr) {
#pragma acc serial
;
}
}
}
}
void no_other_directives() {
no_other_directives_templ<3>();
int Arr[5];
#pragma acc loop tile (1, *, 3) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
for (auto x : Arr) {
// expected-error@+1{{OpenACC 'serial' construct cannot appear in intervening code of a 'loop' with a 'tile' clause}}
#pragma acc serial
;
for(int j = 0; j < 5; ++j);
}
}
// OK, in innermost
#pragma acc loop tile (3, *, 3)
for(int i = 0; i < 5; ++i) {
for(int j = 0; j < 5; ++j) {
for (auto x : Arr) {
#pragma acc serial
;
}
}
}
}
void call();
template<unsigned Val>
void intervening_templ() {
#pragma acc loop tile(1, Val, *) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
//expected-error@+1{{inner loops must be tightly nested inside a 'tile' clause on a 'loop' construct}}
call();
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
#pragma acc loop tile(1, Val, *) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
//expected-error@+1{{inner loops must be tightly nested inside a 'tile' clause on a 'loop' construct}}
unsigned I;
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
#pragma acc loop tile(1, Val, *)
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(int i = 0;;++i) {
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-5{{'loop' construct is here}}
for(int j = 0;;++j)
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-8{{'loop' construct is here}}
for(int k = 0;;++k)
call();
}
}
void intervening() {
intervening_templ<3>();
#pragma acc loop tile(1, 2, *) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
//expected-error@+1{{inner loops must be tightly nested inside a 'tile' clause on a 'loop' construct}}
call();
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
#pragma acc loop tile(1, 2, *) // expected-note{{active 'tile' clause defined here}}
for(int i = 0; i < 5; ++i) {
//expected-error@+1{{inner loops must be tightly nested inside a 'tile' clause on a 'loop' construct}}
unsigned I;
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k);
}
#pragma acc loop tile(1, 2, *)
for(int i = 0; i < 5; ++i) {
for(int j = 0; j < 5; ++j)
for(int k = 0; k < 5; ++k)
call();
}
#pragma acc loop tile(1, 2, *)
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-2{{'loop' construct is here}}
for(int i = 0;;++i) {
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-5{{'loop' construct is here}}
for(int j = 0;;++j)
// expected-error@+2{{OpenACC 'loop' construct must have a terminating condition}}
// expected-note@-8{{'loop' construct is here}}
for(int k = 0;;++k)
for(;;)
call();
}
}
void use_largest_tile() {
// expected-error@+2{{'tile' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1{{active 'tile' clause defined here}}
#pragma acc loop tile(1,2) device_type(*) tile (3,4,5)
for(int i = 0; i < 5; ++i)
for (int j = 0; j < 5; ++j);
// expected-error@+2{{'tile' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1{{active 'tile' clause defined here}}
#pragma acc loop tile (3,4,5) device_type(*) tile(1,2)
for(int i = 0; i < 5; ++i)
for (int j = 0; j < 5; ++j);
}
void collapse_tile_depth() {
// expected-error@+4{{'collapse' clause specifies a loop count greater than the number of available loops}}
// expected-note@+3{{active 'collapse' clause defined here}}
// expected-error@+2{{'tile' clause specifies a loop count greater than the number of available loops}}
// expected-note@+1{{active 'tile' clause defined here}}
#pragma acc loop tile(1, 2, 3) collapse (3)
for(int i = 0; i < 5;++i) {
for(int j = 0; j < 5; ++j);
}
}
void no_dupes_since_last_device_type() {
// expected-error@+3{{OpenACC 'tile' clause cannot appear more than once in a 'device_type' region on a 'loop' directive}}
// expected-note@+2{{previous 'tile' clause is here}}
// expected-note@+1{{active 'device_type' clause here}}
#pragma acc loop tile(1) device_type(*) tile(1) tile(2)
for(unsigned i = 0; i < 5; ++i)
for(unsigned j = 0; j < 5; ++j);
#pragma acc loop tile(1) device_type(*) tile(1) device_type(nvidia) tile(2)
for(unsigned i = 0; i < 5; ++i)
for(unsigned j = 0; j < 5; ++j);
// expected-error@+4{{OpenACC 'tile' clause applies to 'device_type' 'nvidiA', which conflicts with previous 'tile' clause}}
// expected-note@+3{{active 'device_type' clause here}}
// expected-note@+2{{previous 'tile' clause is here}}
// expected-note@+1{{which applies to 'device_type' clause here}}
#pragma acc loop device_type(nvidia, radeon) tile(1) device_type(nvidiA) tile(2)
for(unsigned i = 0; i < 5; ++i)
for(unsigned j = 0; j < 5; ++j);
// expected-error@+4{{OpenACC 'tile' clause applies to 'device_type' 'radeon', which conflicts with previous 'tile' clause}}
// expected-note@+3{{active 'device_type' clause here}}
// expected-note@+2{{previous 'tile' clause is here}}
// expected-note@+1{{which applies to 'device_type' clause here}}
#pragma acc loop device_type(radeon) tile(1) device_type(nvidia, radeon) tile(2)
for(unsigned i = 0; i < 5; ++i)
for(unsigned j = 0; j < 5; ++j);
}
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