nvptx: Support '-mptx=5.0'

	gcc/
	* config/nvptx/nvptx-opts.h (enum ptx_version): Add
	'PTX_VERSION_5_0'.
	* config/nvptx/nvptx.cc (ptx_version_to_string)
	(ptx_version_to_number): Adjust.
	* config/nvptx/nvptx.h (TARGET_PTX_5_0): New.
	* config/nvptx/nvptx.opt (Enum(ptx_version)): Add 'EnumValue'
	'5.0' for 'PTX_VERSION_5_0'.
	* doc/invoke.texi (Nvidia PTX Options): Document '-mptx=5.0'.
	gcc/testsuite/
	* gcc.target/nvptx/mptx=5.0.c: New.

(cherry picked from commit 97616687149f115e0ab946b9a05a9f8c1e47429e)

6 files changed, 29 insertions, 0 deletions

diff --git a/gcc/config/nvptx/nvptx-opts.h b/gcc/config/nvptx/nvptx-opts.h
index d886701..07bcd32 100644
--- a/gcc/config/nvptx/nvptx-opts.h
+++ b/gcc/config/nvptx/nvptx-opts.h
@@ -40,6 +40,7 @@ enum ptx_version
   PTX_VERSION_3_1,
   PTX_VERSION_4_1,
   PTX_VERSION_4_2,
+  PTX_VERSION_5_0,
   PTX_VERSION_6_0,
   PTX_VERSION_6_3,
   PTX_VERSION_7_0,
diff --git a/gcc/config/nvptx/nvptx.cc b/gcc/config/nvptx/nvptx.cc
index 115d34f..48345e0 100644
--- a/gcc/config/nvptx/nvptx.cc
+++ b/gcc/config/nvptx/nvptx.cc
@@ -274,6 +274,8 @@ ptx_version_to_string (enum ptx_version v)
       return "4.1";
     case PTX_VERSION_4_2:
       return "4.2";
+    case PTX_VERSION_5_0:
+      return "5.0";
     case PTX_VERSION_6_0:
       return "6.0";
     case PTX_VERSION_6_3:
@@ -300,6 +302,8 @@ ptx_version_to_number (enum ptx_version v, bool major_p)
       return major_p ? 4 : 1;
     case PTX_VERSION_4_2:
       return major_p ? 4 : 2;
+    case PTX_VERSION_5_0:
+      return major_p ? 5 : 0;
     case PTX_VERSION_6_0:
       return major_p ? 6 : 0;
     case PTX_VERSION_6_3:
diff --git a/gcc/config/nvptx/nvptx.h b/gcc/config/nvptx/nvptx.h
index 0c544d3..b9440f3 100644
--- a/gcc/config/nvptx/nvptx.h
+++ b/gcc/config/nvptx/nvptx.h
@@ -101,6 +101,7 @@
    PTX ISA Version 3.1.  */
 #define TARGET_PTX_4_1 (ptx_version_option >= PTX_VERSION_4_1)
 #define TARGET_PTX_4_2 (ptx_version_option >= PTX_VERSION_4_2)
+#define TARGET_PTX_5_0 (ptx_version_option >= PTX_VERSION_5_0)
 #define TARGET_PTX_6_0 (ptx_version_option >= PTX_VERSION_6_0)
 #define TARGET_PTX_6_3 (ptx_version_option >= PTX_VERSION_6_3)
 #define TARGET_PTX_7_0 (ptx_version_option >= PTX_VERSION_7_0)
diff --git a/gcc/config/nvptx/nvptx.opt b/gcc/config/nvptx/nvptx.opt
index ce9fbc7..d53a727 100644
--- a/gcc/config/nvptx/nvptx.opt
+++ b/gcc/config/nvptx/nvptx.opt
@@ -134,6 +134,9 @@ EnumValue
 Enum(ptx_version) String(4.2) Value(PTX_VERSION_4_2)
 
 EnumValue
+Enum(ptx_version) String(5.0) Value(PTX_VERSION_5_0)
+
+EnumValue
 Enum(ptx_version) String(6.0) Value(PTX_VERSION_6_0)
 
 EnumValue
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index c122724..78a1a41 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -30711,6 +30711,7 @@ Generate code for the specified PTX ISA version.
 Valid version strings are
 @samp{3.1},
 @samp{4.1}, @samp{4.2},
+@samp{5.0},
 @samp{6.0}, @samp{6.3},
 @samp{7.0}, @samp{7.3}, and @samp{7.8}.
 The default PTX ISA version is the one that added support for the
diff --git a/gcc/testsuite/gcc.target/nvptx/mptx=5.0.c b/gcc/testsuite/gcc.target/nvptx/mptx=5.0.c
new file mode 100644
index 0000000..5d6163e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/nvptx/mptx=5.0.c
@@ -0,0 +1,19 @@
+/* { dg-do assemble } */
+/* { dg-options {-march=sm_30 -mptx=5.0} } */
+/* { dg-additional-options -save-temps } */
+/* { dg-final { scan-assembler-times {(?n)^	\.version	5\.0$} 1 } } */
+/* { dg-final { scan-assembler-times {(?n)^	\.target	sm_30$} 1 } } */
+
+#if __PTX_ISA_VERSION_MAJOR__ != 5
+#error wrong value for __PTX_ISA_VERSION_MAJOR__
+#endif
+
+#if __PTX_ISA_VERSION_MINOR__ != 0
+#error wrong value for __PTX_ISA_VERSION_MINOR__
+#endif
+
+#if __PTX_SM__ != 300
+#error wrong value for __PTX_SM__
+#endif
+
+int dummy;