[libclc] 168/291: relational: Add isless(floatN) builtin

[Andreas Beckmann]

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anbe pushed a commit to branch master
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commit 45ca8f6da9e029aa20f6a315223ae0b90237ca4e
Author: Jan Vesely <jan.vesely at rutgers.edu>
Date:   Fri Aug 1 21:50:55 2014 +0000

    relational: Add isless(floatN) builtin
    
    v2: remove the initial undef
    
    Signed-off-by: Jan Vesely <jan.vesely at rutgers.edu>
    Reviewed-by: Aaron Watry <awatry at gmail.com>
    
    git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@214567 91177308-0d34-0410-b5e6-96231b3b80d8
---
 generic/include/clc/clc.h               |  1 +
 generic/include/clc/relational/isless.h |  7 +++++++
 generic/lib/SOURCES                     |  1 +
 generic/lib/relational/isless.cl        | 22 ++++++++++++++++++++++
 4 files changed, 31 insertions(+)

diff --git a/generic/include/clc/clc.h b/generic/include/clc/clc.h
index 60b5a6c..83bf8fa 100644
--- a/generic/include/clc/clc.h
+++ b/generic/include/clc/clc.h
@@ -115,6 +115,7 @@
 #include <clc/relational/isequal.h>
 #include <clc/relational/isgreater.h>
 #include <clc/relational/isgreaterequal.h>
+#include <clc/relational/isless.h>
 #include <clc/relational/isnan.h>
 #include <clc/relational/isnotequal.h>
 #include <clc/relational/select.h>
diff --git a/generic/include/clc/relational/isless.h b/generic/include/clc/relational/isless.h
new file mode 100644
index 0000000..1debd87
--- /dev/null
+++ b/generic/include/clc/relational/isless.h
@@ -0,0 +1,7 @@
+#define __CLC_FUNCTION isless
+#define __CLC_BODY <clc/relational/binary_decl.inc>
+
+#include <clc/relational/floatn.inc>
+
+#undef __CLC_BODY
+#undef __CLC_FUNCTION
diff --git a/generic/lib/SOURCES b/generic/lib/SOURCES
index 7efe08c..7faba40 100644
--- a/generic/lib/SOURCES
+++ b/generic/lib/SOURCES
@@ -48,6 +48,7 @@ relational/any.cl
 relational/isequal.cl
 relational/isgreater.cl
 relational/isgreaterequal.cl
+relational/isless.cl
 relational/isnan.cl
 relational/isnotequal.cl
 relational/signbit.cl
diff --git a/generic/lib/relational/isless.cl b/generic/lib/relational/isless.cl
new file mode 100644
index 0000000..56a3e13
--- /dev/null
+++ b/generic/lib/relational/isless.cl
@@ -0,0 +1,22 @@
+#include <clc/clc.h>
+#include "relational.h"
+
+//Note: It would be nice to use __builtin_isless with vector inputs, but it seems to only take scalar values as
+//      input, which will produce incorrect output for vector input types.
+
+_CLC_DEFINE_RELATIONAL_BINARY(int, isless, __builtin_isless, float, float)
+
+#ifdef cl_khr_fp64
+
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+
+// The scalar version of isless(double, double) returns an int, but the vector versions
+// return long.
+
+_CLC_DEF _CLC_OVERLOAD int isless(double x, double y){
+	return __builtin_isless(x, y);
+}
+
+_CLC_DEFINE_RELATIONAL_BINARY_VEC_ALL(long, isless, double, double)
+
+#endif

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