[libclc] 32/79: half_log2: Implement using log2

[Andreas Boll]

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aboll-guest pushed a commit to branch master
in repository libclc.

commit bc35b276b5294885bff666b79d97d40948fc0e40
Author: Jan Vesely <jan.vesely at rutgers.edu>
Date:   Thu Jan 18 21:11:56 2018 +0000

    half_log2: Implement using log2
    
    Passes CTS on carrizo
    v2: Use full precision implementation
    
    Reviewer: Jeroen Ketema <j.ketema at xs4all.nl>
    Signed-off-by: Jan Vesely <jan.vesely at rutgers.edu>
    
    git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@322895 91177308-0d34-0410-b5e6-96231b3b80d8
---
 generic/include/clc/clc.h            | 1 +
 generic/include/clc/math/half_log2.h | 9 +++++++++
 generic/lib/SOURCES                  | 1 +
 generic/lib/math/half_log2.cl        | 6 ++++++
 4 files changed, 17 insertions(+)

diff --git a/generic/include/clc/clc.h b/generic/include/clc/clc.h
index 33392e6..a52ed5d 100644
--- a/generic/include/clc/clc.h
+++ b/generic/include/clc/clc.h
@@ -76,6 +76,7 @@
 #include <clc/math/half_exp2.h>
 #include <clc/math/half_log.h>
 #include <clc/math/half_log10.h>
+#include <clc/math/half_log2.h>
 #include <clc/math/half_rsqrt.h>
 #include <clc/math/half_sqrt.h>
 #include <clc/math/hypot.h>
diff --git a/generic/include/clc/math/half_log2.h b/generic/include/clc/math/half_log2.h
new file mode 100644
index 0000000..6a371ab
--- /dev/null
+++ b/generic/include/clc/math/half_log2.h
@@ -0,0 +1,9 @@
+#define __CLC_BODY <clc/math/unary_decl.inc>
+#define __CLC_FUNCTION half_log2
+#define __FLOAT_ONLY
+
+#include <clc/math/gentype.inc>
+
+#undef __FLOAT_ONLY
+#undef __CLC_BODY
+#undef __CLC_FUNCTION
diff --git a/generic/lib/SOURCES b/generic/lib/SOURCES
index 2fcb59c..11a4ca8 100644
--- a/generic/lib/SOURCES
+++ b/generic/lib/SOURCES
@@ -110,6 +110,7 @@ math/half_exp10.cl
 math/half_exp2.cl
 math/half_log.cl
 math/half_log10.cl
+math/half_log2.cl
 math/half_rsqrt.cl
 math/half_sqrt.cl
 math/hypot.cl
diff --git a/generic/lib/math/half_log2.cl b/generic/lib/math/half_log2.cl
new file mode 100644
index 0000000..d98a611
--- /dev/null
+++ b/generic/lib/math/half_log2.cl
@@ -0,0 +1,6 @@
+#include <clc/clc.h>
+
+#define __CLC_FUNC log2
+#define __CLC_BODY <half_unary.inc>
+#define __FLOAT_ONLY
+#include <clc/math/gentype.inc>

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