r356255 - [CUDA][Windows] Partial fix for bug #38811 (Step 1 of 3)

[Evgeny Mankov via cfe-commits]

Author: emankov
Date: Fri Mar 15 05:05:36 2019
New Revision: 356255

URL: http://llvm.org/viewvc/llvm-project?rev=356255&view=rev
Log:
[CUDA][Windows] Partial fix for bug #38811 (Step 1 of 3)

Partial fix for the clang Bug https://bugs.llvm.org/show_bug.cgi?id=38811 "Clang fails to compile with CUDA-9.x on Windows".

Adding defined(_WIN64) check along with existing #if defined(__LP64__) eliminates the below clang (64-bit) compilation error on Windows.

C:/GIT/LLVM/trunk/llvm-64-release-vs2017/dist/lib/clang/9.0.0\include\__clang_cuda_device_functions.h(1609,45): error GEF7559A7: no matching function for call to 'roundf'
 __DEVICE__ long lroundf(float __a) { return roundf(__a); }

Reviewed by: Artem Belevich

Differential Revision: http://reviews.llvm.org/D59361

Modified:
    cfe/trunk/lib/Headers/__clang_cuda_device_functions.h

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=356255&r1=356254&r2=356255&view=diff
==============================================================================
--- cfe/trunk/lib/Headers/__clang_cuda_device_functions.h (original)
+++ cfe/trunk/lib/Headers/__clang_cuda_device_functions.h Fri Mar 15 05:05:36 2019
@@ -1563,7 +1563,7 @@ __DEVICE__ double j1(double __a) { retur
 __DEVICE__ float j1f(float __a) { return __nv_j1f(__a); }
 __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__)
+#if defined(__LP64__) || defined(_WIN64)
 __DEVICE__ long labs(long __a) { return llabs(__a); };
 #else
 __DEVICE__ long labs(long __a) { return __nv_abs(__a); };
@@ -1597,7 +1597,7 @@ __DEVICE__ float logbf(float __a) { retu
 __DEVICE__ float logf(float __a) {
   return __FAST_OR_SLOW(__nv_fast_logf, __nv_logf)(__a);
 }
-#if defined(__LP64__)
+#if defined(__LP64__) || defined(_WIN64)
 __DEVICE__ long lrint(double __a) { return llrint(__a); }
 __DEVICE__ long lrintf(float __a) { return __float2ll_rn(__a); }
 __DEVICE__ long lround(double __a) { return llround(__a); }