r360804 - [OpenMP][bugfix] Fix issues with C++ 17 compilation when handling math functions
Gheorghe-Teodor Bercea via cfe-commits
cfe-commits at lists.llvm.org
Wed May 15 13:18:21 PDT 2019
Author: gbercea
Date: Wed May 15 13:18:21 2019
New Revision: 360804
URL: http://llvm.org/viewvc/llvm-project?rev=360804&view=rev
Log:
[OpenMP][bugfix] Fix issues with C++ 17 compilation when handling math functions
Summary: In OpenMP device offloading we must ensure that unde C++ 17, the inclusion of cstdlib will works correctly.
Reviewers: ABataev, tra, jdoerfert, hfinkel, caomhin
Reviewed By: jdoerfert
Subscribers: Hahnfeld, guansong, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61949
Added:
cfe/trunk/test/Headers/nvptx_device_cmath_functions_cxx17.cpp
cfe/trunk/test/Headers/nvptx_device_math_functions_cxx17.cpp
Modified:
cfe/trunk/lib/Headers/__clang_cuda_cmath.h
cfe/trunk/lib/Headers/__clang_cuda_device_functions.h
cfe/trunk/lib/Headers/__clang_cuda_math_forward_declares.h
cfe/trunk/test/Headers/Inputs/include/cstdlib
Modified: cfe/trunk/lib/Headers/__clang_cuda_cmath.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/__clang_cuda_cmath.h?rev=360804&r1=360803&r2=360804&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/__clang_cuda_cmath.h (original)
+++ cfe/trunk/lib/Headers/__clang_cuda_cmath.h Wed May 15 13:18:21 2019
@@ -36,6 +36,15 @@
#define __DEVICE__ static __device__ __inline__ __attribute__((always_inline))
#endif
+// For C++ 17 we need to include noexcept attribute to be compatible
+// with the header-defined version. This may be removed once
+// variant is supported.
+#if defined(_OPENMP) && defined(__cplusplus) && __cplusplus >= 201703L
+#define __NOEXCEPT noexcept
+#else
+#define __NOEXCEPT
+#endif
+
#if !(defined(_OPENMP) && defined(__cplusplus))
__DEVICE__ long long abs(long long __n) { return ::llabs(__n); }
__DEVICE__ long abs(long __n) { return ::labs(__n); }
@@ -50,7 +59,7 @@ __DEVICE__ float ceil(float __x) { retur
__DEVICE__ float cos(float __x) { return ::cosf(__x); }
__DEVICE__ float cosh(float __x) { return ::coshf(__x); }
__DEVICE__ float exp(float __x) { return ::expf(__x); }
-__DEVICE__ float fabs(float __x) { return ::fabsf(__x); }
+__DEVICE__ float fabs(float __x) __NOEXCEPT { return ::fabsf(__x); }
__DEVICE__ float floor(float __x) { return ::floorf(__x); }
__DEVICE__ float fmod(float __x, float __y) { return ::fmodf(__x, __y); }
// TODO: remove when variant is supported
@@ -465,6 +474,7 @@ _GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#endif
+#undef __NOEXCEPT
#undef __DEVICE__
#endif
Modified: cfe/trunk/lib/Headers/__clang_cuda_device_functions.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/__clang_cuda_device_functions.h?rev=360804&r1=360803&r2=360804&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/__clang_cuda_device_functions.h (original)
+++ cfe/trunk/lib/Headers/__clang_cuda_device_functions.h Wed May 15 13:18:21 2019
@@ -37,6 +37,15 @@
#define __FAST_OR_SLOW(fast, slow) slow
#endif
+// For C++ 17 we need to include noexcept attribute to be compatible
+// with the header-defined version. This may be removed once
+// variant is supported.
+#if defined(_OPENMP) && defined(__cplusplus) && __cplusplus >= 201703L
+#define __NOEXCEPT noexcept
+#else
+#define __NOEXCEPT
+#endif
+
__DEVICE__ int __all(int __a) { return __nvvm_vote_all(__a); }
__DEVICE__ int __any(int __a) { return __nvvm_vote_any(__a); }
__DEVICE__ unsigned int __ballot(int __a) { return __nvvm_vote_ballot(__a); }
@@ -1474,7 +1483,8 @@ __DEVICE__ unsigned int __vsubus4(unsign
return r;
}
#endif // CUDA_VERSION >= 9020
-__DEVICE__ int abs(int __a) { return __nv_abs(__a); }
+__DEVICE__ int abs(int __a) __NOEXCEPT { return __nv_abs(__a); }
+__DEVICE__ double fabs(double __a) __NOEXCEPT { return __nv_fabs(__a); }
__DEVICE__ double acos(double __a) { return __nv_acos(__a); }
__DEVICE__ float acosf(float __a) { return __nv_acosf(__a); }
__DEVICE__ double acosh(double __a) { return __nv_acosh(__a); }
@@ -1533,7 +1543,6 @@ __DEVICE__ float exp2f(float __a) { retu
__DEVICE__ float expf(float __a) { return __nv_expf(__a); }
__DEVICE__ double expm1(double __a) { return __nv_expm1(__a); }
__DEVICE__ float expm1f(float __a) { return __nv_expm1f(__a); }
-__DEVICE__ double fabs(double __a) { return __nv_fabs(__a); }
__DEVICE__ float fabsf(float __a) { return __nv_fabsf(__a); }
__DEVICE__ double fdim(double __a, double __b) { return __nv_fdim(__a, __b); }
__DEVICE__ float fdimf(float __a, float __b) { return __nv_fdimf(__a, __b); }
@@ -1572,15 +1581,15 @@ __DEVICE__ float j1f(float __a) { return
__DEVICE__ double jn(int __n, double __a) { return __nv_jn(__n, __a); }
__DEVICE__ float jnf(int __n, float __a) { return __nv_jnf(__n, __a); }
#if defined(__LP64__) || defined(_WIN64)
-__DEVICE__ long labs(long __a) { return __nv_llabs(__a); };
+__DEVICE__ long labs(long __a) __NOEXCEPT { return __nv_llabs(__a); };
#else
-__DEVICE__ long labs(long __a) { return __nv_abs(__a); };
+__DEVICE__ long labs(long __a) __NOEXCEPT { return __nv_abs(__a); };
#endif
__DEVICE__ double ldexp(double __a, int __b) { return __nv_ldexp(__a, __b); }
__DEVICE__ float ldexpf(float __a, int __b) { return __nv_ldexpf(__a, __b); }
__DEVICE__ double lgamma(double __a) { return __nv_lgamma(__a); }
__DEVICE__ float lgammaf(float __a) { return __nv_lgammaf(__a); }
-__DEVICE__ long long llabs(long long __a) { return __nv_llabs(__a); }
+__DEVICE__ long long llabs(long long __a) __NOEXCEPT { return __nv_llabs(__a); }
__DEVICE__ long long llmax(long long __a, long long __b) {
return __nv_llmax(__a, __b);
}
@@ -1778,6 +1787,7 @@ __DEVICE__ float y1f(float __a) { return
__DEVICE__ double yn(int __a, double __b) { return __nv_yn(__a, __b); }
__DEVICE__ float ynf(int __a, float __b) { return __nv_ynf(__a, __b); }
+#undef __NOEXCEPT
#pragma pop_macro("__DEVICE__")
#pragma pop_macro("__FAST_OR_SLOW")
#endif // __CLANG_CUDA_DEVICE_FUNCTIONS_H__
Modified: cfe/trunk/lib/Headers/__clang_cuda_math_forward_declares.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Headers/__clang_cuda_math_forward_declares.h?rev=360804&r1=360803&r2=360804&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/__clang_cuda_math_forward_declares.h (original)
+++ cfe/trunk/lib/Headers/__clang_cuda_math_forward_declares.h Wed May 15 13:18:21 2019
@@ -27,11 +27,20 @@
static __inline__ __attribute__((always_inline)) __attribute__((device))
#endif
+// For C++ 17 we need to include noexcept attribute to be compatible
+// with the header-defined version. This may be removed once
+// variant is supported.
+#if defined(_OPENMP) && defined(__cplusplus) && __cplusplus >= 201703L
+#define __NOEXCEPT noexcept
+#else
+#define __NOEXCEPT
+#endif
+
#if !(defined(_OPENMP) && defined(__cplusplus))
__DEVICE__ long abs(long);
__DEVICE__ long long abs(long long);
#endif
-__DEVICE__ int abs(int);
+__DEVICE__ int abs(int) __NOEXCEPT;
__DEVICE__ double abs(double);
__DEVICE__ float abs(float);
__DEVICE__ double acos(double);
@@ -68,8 +77,8 @@ __DEVICE__ double exp(double);
__DEVICE__ float exp(float);
__DEVICE__ double expm1(double);
__DEVICE__ float expm1(float);
-__DEVICE__ double fabs(double);
-__DEVICE__ float fabs(float);
+__DEVICE__ double fabs(double) __NOEXCEPT;
+__DEVICE__ float fabs(float) __NOEXCEPT;
__DEVICE__ double fdim(double, double);
__DEVICE__ float fdim(float, float);
__DEVICE__ double floor(double);
@@ -119,12 +128,12 @@ __DEVICE__ bool isnormal(double);
__DEVICE__ bool isnormal(float);
__DEVICE__ bool isunordered(double, double);
__DEVICE__ bool isunordered(float, float);
-__DEVICE__ long labs(long);
+__DEVICE__ long labs(long) __NOEXCEPT;
__DEVICE__ double ldexp(double, int);
__DEVICE__ float ldexp(float, int);
__DEVICE__ double lgamma(double);
__DEVICE__ float lgamma(float);
-__DEVICE__ long long llabs(long long);
+__DEVICE__ long long llabs(long long) __NOEXCEPT;
__DEVICE__ long long llrint(double);
__DEVICE__ long long llrint(float);
__DEVICE__ double log10(double);
@@ -282,6 +291,7 @@ _GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
#endif
+#undef __NOEXCEPT
#pragma pop_macro("__DEVICE__")
#endif
Modified: cfe/trunk/test/Headers/Inputs/include/cstdlib
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Headers/Inputs/include/cstdlib?rev=360804&r1=360803&r2=360804&view=diff
==============================================================================
--- cfe/trunk/test/Headers/Inputs/include/cstdlib (original)
+++ cfe/trunk/test/Headers/Inputs/include/cstdlib Wed May 15 13:18:21 2019
@@ -1,7 +1,12 @@
#pragma once
+#if __cplusplus >= 201703L
+extern int abs (int __x) throw() __attribute__ ((__const__)) ;
+extern long int labs (long int __x) throw() __attribute__ ((__const__)) ;
+#else
extern int abs (int __x) __attribute__ ((__const__)) ;
extern long int labs (long int __x) __attribute__ ((__const__)) ;
+#endif
namespace std
{
Added: cfe/trunk/test/Headers/nvptx_device_cmath_functions_cxx17.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Headers/nvptx_device_cmath_functions_cxx17.cpp?rev=360804&view=auto
==============================================================================
--- cfe/trunk/test/Headers/nvptx_device_cmath_functions_cxx17.cpp (added)
+++ cfe/trunk/test/Headers/nvptx_device_cmath_functions_cxx17.cpp Wed May 15 13:18:21 2019
@@ -0,0 +1,22 @@
+// Test calling of device math functions.
+///==========================================================================///
+
+// REQUIRES: nvptx-registered-target
+
+// RUN: %clang_cc1 -internal-isystem %S/Inputs/include -include cmath -x c++ -fopenmp -triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm-bc %s -o %t-ppc-host.bc -std=c++17
+// RUN: %clang_cc1 -internal-isystem %S/../../lib/Headers/openmp_wrappers -include __clang_openmp_math_declares.h -internal-isystem %S/../../lib/Headers/openmp_wrappers -include cmath -internal-isystem %S/Inputs/include -include stdlib.h -x c++ -fopenmp -triple nvptx64-nvidia-cuda -aux-triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -std=c++17 -o - | FileCheck -check-prefix CHECK-YES %s
+
+#include <cmath>
+#include <cstdlib>
+
+void test_sqrt(double a1) {
+ #pragma omp target
+ {
+ // CHECK-YES: call double @__nv_sqrt(double
+ double l1 = sqrt(a1);
+ // CHECK-YES: call double @__nv_pow(double
+ double l2 = pow(a1, a1);
+ // CHECK-YES: call double @__nv_modf(double
+ double l3 = modf(a1 + 3.5, &a1);
+ }
+}
Added: cfe/trunk/test/Headers/nvptx_device_math_functions_cxx17.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Headers/nvptx_device_math_functions_cxx17.cpp?rev=360804&view=auto
==============================================================================
--- cfe/trunk/test/Headers/nvptx_device_math_functions_cxx17.cpp (added)
+++ cfe/trunk/test/Headers/nvptx_device_math_functions_cxx17.cpp Wed May 15 13:18:21 2019
@@ -0,0 +1,22 @@
+// Test calling of device math functions.
+///==========================================================================///
+
+// REQUIRES: nvptx-registered-target
+
+// RUN: %clang_cc1 -internal-isystem %S/Inputs/include -include math.h -x c++ -fopenmp -triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm-bc %s -o %t-ppc-host.bc -std=c++17
+// RUN: %clang_cc1 -internal-isystem %S/../../lib/Headers/openmp_wrappers -include __clang_openmp_math_declares.h -internal-isystem %S/../../lib/Headers/openmp_wrappers -include math.h -internal-isystem %S/Inputs/include -include stdlib.h -include limits -include cstdlib -x c++ -fopenmp -triple nvptx64-nvidia-cuda -aux-triple powerpc64le-unknown-unknown -fopenmp-targets=nvptx64-nvidia-cuda -emit-llvm %s -fopenmp-is-device -fopenmp-host-ir-file-path %t-ppc-host.bc -std=c++17 -o - | FileCheck -check-prefix CHECK-YES %s
+
+#include <cstdlib>
+#include <math.h>
+
+void test_sqrt(double a1) {
+ #pragma omp target
+ {
+ // CHECK-YES: call double @__nv_sqrt(double
+ double l1 = sqrt(a1);
+ // CHECK-YES: call double @__nv_pow(double
+ double l2 = pow(a1, a1);
+ // CHECK-YES: call double @__nv_modf(double
+ double l3 = modf(a1 + 3.5, &a1);
+ }
+}
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