[libclc] 121/291: Add cross for double3 and double4

[Andreas Beckmann]

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anbe pushed a commit to branch master
in repository libclc.

commit 5389458b53230d2a5f26dc1e6df0f1b395bb4e66
Author: Tom Stellard <thomas.stellard at amd.com>
Date:   Fri Mar 21 16:21:58 2014 +0000

    Add cross for double3 and double4
    
    Patch by: Jeroen Ketema
    
    Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
    
    git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@204477 91177308-0d34-0410-b5e6-96231b3b80d8
---
 generic/include/clc/geometric/cross.h |  5 +++++
 generic/lib/geometric/cross.cl        | 14 ++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/generic/include/clc/geometric/cross.h b/generic/include/clc/geometric/cross.h
index 74117c0..eee0cc8 100644
--- a/generic/include/clc/geometric/cross.h
+++ b/generic/include/clc/geometric/cross.h
@@ -1,2 +1,7 @@
 _CLC_OVERLOAD _CLC_DECL float3 cross(float3 p0, float3 p1);
 _CLC_OVERLOAD _CLC_DECL float4 cross(float4 p0, float4 p1);
+
+#ifdef cl_khr_fp64
+_CLC_OVERLOAD _CLC_DECL double3 cross(double3 p0, double3 p1);
+_CLC_OVERLOAD _CLC_DECL double4 cross(double4 p0, double4 p1);
+#endif
diff --git a/generic/lib/geometric/cross.cl b/generic/lib/geometric/cross.cl
index 4c1bc6f..3b4ca6c 100644
--- a/generic/lib/geometric/cross.cl
+++ b/generic/lib/geometric/cross.cl
@@ -9,3 +9,17 @@ _CLC_OVERLOAD _CLC_DEF float4 cross(float4 p0, float4 p1) {
   return (float4)(p0.y*p1.z - p0.z*p1.y, p0.z*p1.x - p0.x*p1.z,
                   p0.x*p1.y - p0.y*p1.x, 0.f);
 }
+
+#ifdef cl_khr_fp64
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+
+_CLC_OVERLOAD _CLC_DEF double3 cross(double3 p0, double3 p1) {
+  return (double3)(p0.y*p1.z - p0.z*p1.y, p0.z*p1.x - p0.x*p1.z,
+                   p0.x*p1.y - p0.y*p1.x);
+}
+
+_CLC_OVERLOAD _CLC_DEF double4 cross(double4 p0, double4 p1) {
+  return (double4)(p0.y*p1.z - p0.z*p1.y, p0.z*p1.x - p0.x*p1.z,
+                   p0.x*p1.y - p0.y*p1.x, 0.f);
+}
+#endif

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