c03d0fe672
OpenCL spec restricts that variable in local address space can only be declared at kernel function scope. Add a Clang internal extension __cl_clang_function_scope_local_variables to lift the restriction. To expose static local allocations at kernel scope, targets can either force-inline non-kernel functions that declare local memory or pass a kernel-allocated local buffer to those functions via an implicit argument. Motivation: support local memory allocation in libclc's implementation of work-group collective built-ins, see example at: https://github.com/intel/llvm/blob/41455e305117/libclc/libspirv/lib/amdgcn-amdhsa/group/collectives_helpers.ll https://github.com/intel/llvm/blob/41455e305117/libclc/libspirv/lib/amdgcn-amdhsa/group/collectives.cl#L182 Right now this is a Clang-only OpenCL extension intended for compiling OpenCL libraries with Clang. It could be proposed as a standard OpenCL extension in the future.
294 lines
15 KiB
Common Lisp
294 lines
15 KiB
Common Lisp
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL1.2 -cl-ext=+__cl_clang_function_scope_local_variables
|
|
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL3.0 -cl-ext=-all,+__cl_clang_function_scope_local_variables
|
|
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL3.0 -cl-ext=-all,+__opencl_c_program_scope_global_variables,+__cl_clang_function_scope_local_variables
|
|
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL3.0 -cl-ext=-all,+__opencl_c_generic_address_space,+__cl_clang_function_scope_local_variables
|
|
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=CL3.0 -cl-ext=-all,+__opencl_c_program_scope_global_variables,+__opencl_c_generic_address_space,+__cl_clang_function_scope_local_variables
|
|
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++2021 -cl-ext=-all,+__cl_clang_function_scope_local_variables
|
|
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++2021 -cl-ext=-all,+__opencl_c_program_scope_global_variables,+__cl_clang_function_scope_local_variables
|
|
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++2021 -cl-ext=-all,+__opencl_c_generic_address_space,+__cl_clang_function_scope_local_variables
|
|
// RUN: %clang_cc1 %s -verify -pedantic -fsyntax-only -cl-std=clc++2021 -cl-ext=-all,+__opencl_c_program_scope_global_variables,+__opencl_c_generic_address_space,+__cl_clang_function_scope_local_variables
|
|
static constant int G1 = 0;
|
|
constant int G2 = 0;
|
|
|
|
int G3 = 0;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{program scope variable must reside in constant address space}}
|
|
#endif
|
|
|
|
global int G4 = 0;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{program scope variable must reside in constant address space}}
|
|
#endif
|
|
|
|
static float g_implicit_static_var = 0;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{program scope variable must reside in constant address space}}
|
|
#endif
|
|
|
|
static constant float g_constant_static_var = 0;
|
|
|
|
static global float g_global_static_var = 0;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{program scope variable must reside in constant address space}}
|
|
#endif
|
|
|
|
static local float g_local_static_var = 0;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{program scope variable must reside in constant address space}}
|
|
#else
|
|
// expected-error@-4 {{program scope variable must reside in global or constant address space}}
|
|
#endif
|
|
|
|
static private float g_private_static_var = 0;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{program scope variable must reside in constant address space}}
|
|
#else
|
|
// expected-error@-4 {{program scope variable must reside in global or constant address space}}
|
|
#endif
|
|
|
|
static generic float g_generic_static_var = 0;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{OpenCL C version 1.2 does not support the 'generic' type qualifier}}
|
|
// expected-error@-3 {{program scope variable must reside in constant address space}}
|
|
#elif (__OPENCL_CPP_VERSION__ == 202100 || __OPENCL_C_VERSION__ == 300)
|
|
#if !defined(__opencl_c_generic_address_space)
|
|
#if (__OPENCL_C_VERSION__ == 300)
|
|
// expected-error@-7 {{OpenCL C version 3.0 does not support the 'generic' type qualifier}}
|
|
#elif (__OPENCL_CPP_VERSION__ == 202100)
|
|
// expected-error@-9 {{C++ for OpenCL version 2021 does not support the 'generic' type qualifier}}
|
|
#endif
|
|
#endif
|
|
#if !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-13 {{program scope variable must reside in constant address space}}
|
|
#endif
|
|
#if defined(__opencl_c_generic_address_space) && defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-16 {{program scope variable must reside in global or constant address space}}
|
|
#endif
|
|
#endif
|
|
|
|
extern float g_implicit_extern_var;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{extern variable must reside in constant address space}}
|
|
#endif
|
|
|
|
extern constant float g_constant_extern_var;
|
|
|
|
extern global float g_global_extern_var;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{extern variable must reside in constant address space}}
|
|
#endif
|
|
|
|
extern local float g_local_extern_var;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{extern variable must reside in constant address space}}
|
|
#else
|
|
// expected-error@-4 {{extern variable must reside in global or constant address space}}
|
|
#endif
|
|
|
|
extern private float g_private_extern_var;
|
|
#ifndef __opencl_c_program_scope_global_variables
|
|
// expected-error@-2 {{extern variable must reside in constant address space}}
|
|
#else
|
|
// expected-error@-4 {{extern variable must reside in global or constant address space}}
|
|
#endif
|
|
|
|
extern generic float g_generic_extern_var;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{OpenCL C version 1.2 does not support the 'generic' type qualifier}}
|
|
// expected-error@-3 {{extern variable must reside in constant address space}}
|
|
#elif (__OPENCL_CPP_VERSION__ == 202100 || __OPENCL_C_VERSION__ == 300)
|
|
#if !defined(__opencl_c_generic_address_space)
|
|
#if (__OPENCL_C_VERSION__ == 300)
|
|
// expected-error@-7 {{OpenCL C version 3.0 does not support the 'generic' type qualifier}}
|
|
#elif (__OPENCL_CPP_VERSION__ == 202100)
|
|
// expected-error@-9 {{C++ for OpenCL version 2021 does not support the 'generic' type qualifier}}
|
|
#endif
|
|
#endif
|
|
#if !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-13 {{extern variable must reside in constant address space}}
|
|
#endif
|
|
#if defined(__opencl_c_generic_address_space) && defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-16 {{extern variable must reside in global or constant address space}}
|
|
#endif
|
|
#endif
|
|
|
|
void kernel foo(int x) {
|
|
// static is not allowed at local scope before CL2.0
|
|
static int S1 = 5;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{variables in function scope cannot be declared static}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{static local variable must reside in constant address space}}
|
|
#endif
|
|
|
|
static constant int S2 = 5;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{variables in function scope cannot be declared static}}
|
|
#endif
|
|
|
|
constant int L1 = 0;
|
|
local int L2;
|
|
|
|
if (true) {
|
|
local int L1; // expected-error {{variables in the local address space can only be declared in the outermost scope of a kernel function}}
|
|
constant int L1 = 42; // expected-error {{variables in the constant address space can only be declared in the outermost scope of a kernel function}}
|
|
}
|
|
|
|
auto int L3 = 7;
|
|
#if (__OPENCL_CPP_VERSION__ == 202100)
|
|
// expected-error@-2{{C++ for OpenCL version 2021 does not support the 'auto' storage class specifier}}
|
|
#else
|
|
// expected-error-re@-4{{OpenCL C version {{1.2|3.0}} does not support the 'auto' storage class specifier}}
|
|
#endif
|
|
global int L4; // expected-error{{function scope variable cannot be declared in global address space}}
|
|
__attribute__((address_space(100))) int L5; // expected-error{{automatic variable qualified with an invalid address space}}
|
|
|
|
constant int L6 = x; // expected-error {{initializer element is not a compile-time constant}}
|
|
global int *constant L7 = &G4;
|
|
|
|
private int *constant L8 = &x; // expected-error {{initializer element is not a compile-time constant}}
|
|
constant int *constant L9 = &L1;
|
|
local int *constant L10 = &L2; // expected-error {{initializer element is not a compile-time constant}}
|
|
}
|
|
|
|
static void kernel bar(void) { // expected-error{{kernel functions cannot be declared static}}
|
|
}
|
|
|
|
void f(void) {
|
|
constant int L1 = 0; // expected-error{{non-kernel function variable cannot be declared in constant address space}}
|
|
local int L2; // expected-error{{non-kernel function variable cannot be declared in local address space}}
|
|
global int L3; // expected-error{{function scope variable cannot be declared in global address space}}
|
|
__attribute__((address_space(100))) int L4; // expected-error{{automatic variable qualified with an invalid address space}}
|
|
|
|
{
|
|
constant int L1 = 0; // expected-error{{non-kernel function variable cannot be declared in constant address space}}
|
|
local int L2; // expected-error{{non-kernel function variable cannot be declared in local address space}}
|
|
global int L3; // expected-error{{function scope variable cannot be declared in global address space}}
|
|
__attribute__((address_space(100))) int L4; // expected-error{{automatic variable qualified with an invalid address space}}
|
|
}
|
|
|
|
static float l_implicit_static_var = 0;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{variables in function scope cannot be declared static}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{static local variable must reside in constant address space}}
|
|
#endif
|
|
|
|
static constant float l_constant_static_var = 0;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{variables in function scope cannot be declared static}}
|
|
#endif
|
|
|
|
static global float l_global_static_var = 0;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{variables in function scope cannot be declared static}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{static local variable must reside in constant address space}}
|
|
#endif
|
|
|
|
static local float l_local_static_var = 0;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{variables in function scope cannot be declared static}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{static local variable must reside in constant address space}}
|
|
#elif defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-6 {{static local variable must reside in global or constant address space}}
|
|
#endif
|
|
|
|
static private float l_private_static_var = 0;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{variables in function scope cannot be declared static}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{static local variable must reside in constant address space}}
|
|
#elif defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-6 {{static local variable must reside in global or constant address space}}
|
|
#endif
|
|
|
|
static generic float l_generic_static_var = 0;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{OpenCL C version 1.2 does not support the 'generic' type qualifier}}
|
|
// expected-error@-3 {{variables in function scope cannot be declared static}}
|
|
#elif (__OPENCL_CPP_VERSION__ == 202100 || __OPENCL_C_VERSION__ == 300)
|
|
#if !defined(__opencl_c_generic_address_space)
|
|
#if (__OPENCL_C_VERSION__ == 300)
|
|
// expected-error@-7 {{OpenCL C version 3.0 does not support the 'generic' type qualifier}}
|
|
#elif (__OPENCL_CPP_VERSION__ == 202100)
|
|
// expected-error@-9 {{C++ for OpenCL version 2021 does not support the 'generic' type qualifier}}
|
|
#endif
|
|
#endif
|
|
#if !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-13 {{static local variable must reside in constant address space}}
|
|
#endif
|
|
#if defined(__opencl_c_generic_address_space) && defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-16 {{static local variable must reside in global or constant address space}}
|
|
#endif
|
|
#endif
|
|
|
|
extern float l_implicit_extern_var;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{extern variable must reside in constant address space}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{extern variable must reside in constant address space}}
|
|
#endif
|
|
|
|
extern constant float l_constant_extern_var;
|
|
|
|
extern global float l_global_extern_var;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{extern variable must reside in constant address space}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{extern variable must reside in constant address space}}
|
|
#endif
|
|
|
|
extern local float l_local_extern_var;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{extern variable must reside in constant address space}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{extern variable must reside in constant address space}}
|
|
#elif defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-6 {{extern variable must reside in global or constant address space}}
|
|
#endif
|
|
|
|
extern private float l_private_extern_var;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{extern variable must reside in constant address space}}
|
|
#elif !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-4 {{extern variable must reside in constant address space}}
|
|
#elif defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-6 {{extern variable must reside in global or constant address space}}
|
|
#endif
|
|
|
|
extern generic float l_generic_extern_var;
|
|
#if (defined(__OPENCL_C_VERSION__) && __OPENCL_C_VERSION__ < 300)
|
|
// expected-error@-2 {{OpenCL C version 1.2 does not support the 'generic' type qualifier}}
|
|
// expected-error@-3 {{extern variable must reside in constant address space}}
|
|
#elif (__OPENCL_CPP_VERSION__ == 202100 || __OPENCL_C_VERSION__ == 300)
|
|
#if !defined(__opencl_c_generic_address_space)
|
|
#if (__OPENCL_C_VERSION__ == 300)
|
|
// expected-error@-7 {{OpenCL C version 3.0 does not support the 'generic' type qualifier}}
|
|
#elif (__OPENCL_CPP_VERSION__ == 202100 && !defined(__opencl_c_generic_address_space))
|
|
// expected-error@-9 {{C++ for OpenCL version 2021 does not support the 'generic' type qualifier}}
|
|
#endif
|
|
#endif
|
|
#if !defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-13 {{extern variable must reside in constant address space}}
|
|
#endif
|
|
#if defined(__opencl_c_generic_address_space) && defined(__opencl_c_program_scope_global_variables)
|
|
// expected-error@-16 {{extern variable must reside in global or constant address space}}
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
void f_local(void) {
|
|
#pragma OPENCL EXTENSION __cl_clang_function_scope_local_variables : enable
|
|
local int L2;
|
|
{
|
|
local int L2;
|
|
}
|
|
#pragma OPENCL EXTENSION __cl_clang_function_scope_local_variables : disable
|
|
local int L2; // expected-error{{non-kernel function variable cannot be declared in local address space}}
|
|
{
|
|
local int L2; // expected-error{{non-kernel function variable cannot be declared in local address space}}
|
|
}
|
|
}
|