rootn: Port from amd_builtins

Passes piglit on turks and carrizo
fp64 passes ctx on carrizo

v2: fix formatting
    check fp32 denormal support at runtime

Reviewer: Jeroen Ketema <j.ketema@xs4all.nl>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
llvm-svn: 322763

5 files changed, 9 insertions, 0 deletions

diff --git a/libclc/generic/include/clc/clc.h b/libclc/generic/include/clc/clc.h
index 227c9e39b79..7525f24198f 100644
--- a/libclc/generic/include/clc/clc.h
+++ b/libclc/generic/include/clc/clc.h
@@ -91,6 +91,7 @@
 #include <clc/math/pown.h>
 #include <clc/math/powr.h>
 #include <clc/math/rint.h>
+#include <clc/math/rootn.h>
 #include <clc/math/round.h>
 #include <clc/math/sin.h>
 #include <clc/math/sincos.h>
diff --git a/libclc/generic/include/clc/math/rootn.h b/libclc/generic/include/clc/math/rootn.h
new file mode 100644
index 00000000000..544302c81ac
--- /dev/null
+++ b/libclc/generic/include/clc/math/rootn.h
@@ -0,0 +1,3 @@
+#define __CLC_BODY <clc/math/rootn.inc>
+#include <clc/math/gentype.inc>
+#undef __CLC_BODY
diff --git a/libclc/generic/include/clc/math/rootn.inc b/libclc/generic/include/clc/math/rootn.inc
new file mode 100644
index 00000000000..0a4cc6d7b84
--- /dev/null
+++ b/libclc/generic/include/clc/math/rootn.inc
@@ -0,0 +1 @@
+_CLC_OVERLOAD _CLC_DECL __CLC_GENTYPE rootn(__CLC_GENTYPE a, __CLC_INTN b);
diff --git a/libclc/generic/include/math/clc_rootn.h b/libclc/generic/include/math/clc_rootn.h
new file mode 100644
index 00000000000..4ea20967ca7
--- /dev/null
+++ b/libclc/generic/include/math/clc_rootn.h
@@ -0,0 +1,3 @@
+#define __CLC_BODY <math/clc_rootn.inc>
+#include <clc/math/gentype.inc>
+#undef __CLC_BODY
diff --git a/libclc/generic/include/math/clc_rootn.inc b/libclc/generic/include/math/clc_rootn.inc
new file mode 100644
index 00000000000..adca0784b64
--- /dev/null
+++ b/libclc/generic/include/math/clc_rootn.inc
@@ -0,0 +1 @@
+_CLC_OVERLOAD _CLC_DECL __CLC_GENTYPE __clc_rootn(__CLC_GENTYPE a, __CLC_INTN b);