Move from 'gcc.target/nvptx/nvptx.exp' into 'target-supports.exp' additions for nvptx target

	gcc/testsuite/
	* gcc.target/nvptx/nvptx.exp
	(check_effective_target_default_ptx_isa_version_at_least)
	(check_effective_target_default_ptx_isa_version_at_least_6_0)
	(check_effective_target_runtime_ptx_isa_version_at_least)
	(check_effective_target_runtime_ptx_alias)
	(add_options_for_ptx_alias): Move...
	* lib/target-supports.exp
	(check_nvptx_default_ptx_isa_version_at_least)
	(check_effective_target_nvptx_default_ptx_isa_version_at_least_6_0)
	(check_nvptx_runtime_ptx_isa_version_at_least)
	(check_effective_target_nvptx_runtime_alias_ptx)
	(add_options_for_nvptx_alias_ptx): ... here.
	* gcc.target/nvptx/alias-1.c: Adjust.
	* gcc.target/nvptx/alias-2.c: Likewise.
	* gcc.target/nvptx/alias-3.c: Likewise.
	* gcc.target/nvptx/alias-4.c: Likewise.
	* gcc.target/nvptx/alias-to-alias-1.c: Likewise.
	* gcc.target/nvptx/alias-weak-1.c: Likewise.
	* gcc.target/nvptx/uniform-simt-5.c: Likewise.
	gcc/
	* doc/sourcebuild.texi (Effective-Target Keywords): Document
	'nvptx_default_ptx_isa_version_at_least_6_0',
	'nvptx_runtime_alias_ptx'.
	(Add Options): Document 'nvptx_alias_ptx'.

10 files changed, 98 insertions, 78 deletions

diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 7c7094d..6ba72fd 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -2424,6 +2424,17 @@ MSP430 target has the small memory model enabled (@code{-msmall}).
 MSP430 target has the large memory model enabled (@code{-mlarge}).
 @end table
 
+@subsubsection nvptx-specific attributes
+
+@table @code
+@item nvptx_default_ptx_isa_version_at_least_6_0
+nvptx code by default compiles for at least PTX ISA version 6.0.
+
+@item nvptx_runtime_alias_ptx
+The nvptx runtime environment supports the PTX ISA directive
+@code{.alias}.
+@end table
+
 @subsubsection PowerPC-specific attributes
 
 @table @code
@@ -3302,6 +3313,9 @@ compliance mode.
 @code{mips16} function attributes.
 Only MIPS targets support this feature, and only then in certain modes.
 
+@item nvptx_alias_ptx
+Enable using the PTX ISA directive @code{.alias} on nvptx targets.
+
 @item riscv_a
 Add the 'A' extension to the -march string on RISC-V targets.
 
diff --git a/gcc/testsuite/gcc.target/nvptx/alias-1.c b/gcc/testsuite/gcc.target/nvptx/alias-1.c
index d251eee..1c0642b 100644
--- a/gcc/testsuite/gcc.target/nvptx/alias-1.c
+++ b/gcc/testsuite/gcc.target/nvptx/alias-1.c
@@ -1,7 +1,7 @@
 /* { dg-do link } */
-/* { dg-do run { target runtime_ptx_alias } } */
+/* { dg-do run { target nvptx_runtime_alias_ptx } } */
 /* { dg-options "-save-temps" } */
-/* { dg-add-options ptx_alias } */
+/* { dg-add-options nvptx_alias_ptx } */
 
 int v;
 
diff --git a/gcc/testsuite/gcc.target/nvptx/alias-2.c b/gcc/testsuite/gcc.target/nvptx/alias-2.c
index 96cb7e2..5c4b9c7 100644
--- a/gcc/testsuite/gcc.target/nvptx/alias-2.c
+++ b/gcc/testsuite/gcc.target/nvptx/alias-2.c
@@ -1,7 +1,7 @@
 /* { dg-do link } */
-/* { dg-do run { target runtime_ptx_alias } } */
+/* { dg-do run { target nvptx_runtime_alias_ptx } } */
 /* { dg-options "-save-temps -O2" } */
-/* { dg-add-options ptx_alias } */
+/* { dg-add-options nvptx_alias_ptx } */
 
 #include "alias-1.c"
 
diff --git a/gcc/testsuite/gcc.target/nvptx/alias-3.c b/gcc/testsuite/gcc.target/nvptx/alias-3.c
index 39649e3..b55ff26 100644
--- a/gcc/testsuite/gcc.target/nvptx/alias-3.c
+++ b/gcc/testsuite/gcc.target/nvptx/alias-3.c
@@ -1,7 +1,7 @@
 /* { dg-do link } */
-/* { dg-do run { target runtime_ptx_alias } } */
+/* { dg-do run { target nvptx_runtime_alias_ptx } } */
 /* { dg-options "-save-temps" } */
-/* { dg-add-options ptx_alias } */
+/* { dg-add-options nvptx_alias_ptx } */
 
 /* Copy of alias-1.c, with static __f and f.  */
 
diff --git a/gcc/testsuite/gcc.target/nvptx/alias-4.c b/gcc/testsuite/gcc.target/nvptx/alias-4.c
index 28163c0..b36fa42 100644
--- a/gcc/testsuite/gcc.target/nvptx/alias-4.c
+++ b/gcc/testsuite/gcc.target/nvptx/alias-4.c
@@ -1,7 +1,7 @@
 /* { dg-do link } */
-/* { dg-do run { target runtime_ptx_alias } } */
+/* { dg-do run { target nvptx_runtime_alias_ptx } } */
 /* { dg-options "-save-temps -O2" } */
-/* { dg-add-options ptx_alias } */
+/* { dg-add-options nvptx_alias_ptx } */
 
 #include "alias-3.c"
 
diff --git a/gcc/testsuite/gcc.target/nvptx/alias-to-alias-1.c b/gcc/testsuite/gcc.target/nvptx/alias-to-alias-1.c
index 3db79d1..273baca 100644
--- a/gcc/testsuite/gcc.target/nvptx/alias-to-alias-1.c
+++ b/gcc/testsuite/gcc.target/nvptx/alias-to-alias-1.c
@@ -1,7 +1,7 @@
 /* Alias to alias; 'libgomp.c-c++-common/pr96390.c'.  */
 
 /* { dg-do compile } */
-/* { dg-add-options ptx_alias } */
+/* { dg-add-options nvptx_alias_ptx } */
 
 int v;
 
diff --git a/gcc/testsuite/gcc.target/nvptx/alias-weak-1.c b/gcc/testsuite/gcc.target/nvptx/alias-weak-1.c
index 37d9543..6e4267c 100644
--- a/gcc/testsuite/gcc.target/nvptx/alias-weak-1.c
+++ b/gcc/testsuite/gcc.target/nvptx/alias-weak-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-add-options ptx_alias } */
+/* { dg-add-options nvptx_alias_ptx } */
 
 void __f ()
 {
diff --git a/gcc/testsuite/gcc.target/nvptx/nvptx.exp b/gcc/testsuite/gcc.target/nvptx/nvptx.exp
index 3151381..d526b58 100644
--- a/gcc/testsuite/gcc.target/nvptx/nvptx.exp
+++ b/gcc/testsuite/gcc.target/nvptx/nvptx.exp
@@ -25,72 +25,6 @@ if ![istarget nvptx*-*-*] then {
 # Load support procs.
 load_lib gcc-dg.exp
 
-# Return 1 if code by default compiles for at least PTX ISA version
-# major.minor.
-proc check_effective_target_default_ptx_isa_version_at_least { major minor } {
-    set name default_ptx_isa_version_at_least_${major}_${minor}
-
-    set supported_p \
-	[concat \
-	     "((__PTX_ISA_VERSION_MAJOR__ == $major" \
-	     "  && __PTX_ISA_VERSION_MINOR__ >= $minor)" \
-	     " || (__PTX_ISA_VERSION_MAJOR__ > $major))"]
-
-    set src \
-	[list \
-	     "#if $supported_p" \
-	     "#else" \
-	     "#error unsupported" \
-	     "#endif"]
-    set src [join $src "\n"]
-    
-    set res [check_no_compiler_messages $name assembly $src ""]
-
-    return $res
-}
-
-# Return 1 if code by default compiles for at least PTX ISA version 6.0.
-proc check_effective_target_default_ptx_isa_version_at_least_6_0 { } {
-    return [check_effective_target_default_ptx_isa_version_at_least 6 0]
-}
-
-# Return 1 if code with PTX ISA version major.minor or higher can be run.
-proc check_effective_target_runtime_ptx_isa_version_at_least { major minor } {
-    set name runtime_ptx_isa_version_${major}_${minor}
-
-    set default \
-	[check_effective_target_default_ptx_isa_version_at_least \
-	     ${major} ${minor}]
-
-    if { $default } {
-	set flag ""
-    } else {
-	set flag "-mptx=$major.$minor"
-    }
-
-    set res [check_runtime $name {
-	int main (void) { return 0; }
-    } $flag]
-
-    return $res
-}
-
-# Return 1 if runtime environment support the PTX ISA directive .alias.
-proc check_effective_target_runtime_ptx_alias { } {
-    return [check_effective_target_runtime_ptx_isa_version_at_least 6 3]
-}
-
-# Add options to enable using PTX ISA directive .alias.
-proc add_options_for_ptx_alias { flags } {
-    append flags " -malias"
-
-    if { ![check_effective_target_default_ptx_isa_version_at_least 6 3] } {
-	append flags " -mptx=6.3"
-    }
-
-    return $flags
-}
-
 # If a testcase doesn't have special options, use these.
 global DEFAULT_CFLAGS
 if ![info exists DEFAULT_CFLAGS] then {
diff --git a/gcc/testsuite/gcc.target/nvptx/uniform-simt-5.c b/gcc/testsuite/gcc.target/nvptx/uniform-simt-5.c
index cd6ea82..12b9f78 100644
--- a/gcc/testsuite/gcc.target/nvptx/uniform-simt-5.c
+++ b/gcc/testsuite/gcc.target/nvptx/uniform-simt-5.c
@@ -22,7 +22,7 @@ main()
 
 /* Per 'omp_simt_exit':
      - 'nvptx_warpsync'
-       { dg-final { scan-assembler-times {bar\.warp\.sync\t0xffffffff;} 1 { target default_ptx_isa_version_at_least_6_0 } } }
+       { dg-final { scan-assembler-times {bar\.warp\.sync\t0xffffffff;} 1 { target nvptx_default_ptx_isa_version_at_least_6_0 } } }
      - 'nvptx_uniform_warp_check'
-       { dg-final { scan-assembler-times {vote\.all\.pred\t%r_sync, 1;} 1 { target { ! default_ptx_isa_version_at_least_6_0 } } } }
+       { dg-final { scan-assembler-times {vote\.all\.pred\t%r_sync, 1;} 1 { target { ! nvptx_default_ptx_isa_version_at_least_6_0 } } } }
 */
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index d537d30..cb9971d 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -13728,3 +13728,75 @@ proc check_effective_target_check_jsonschema { } {
         return 0;
     }
 }
+
+# Return 1 if nvptx code by default compiles for at least PTX ISA version
+# major.minor.
+
+proc check_nvptx_default_ptx_isa_version_at_least { major minor } {
+    set name nvptx_default_ptx_isa_version_at_least_${major}_${minor}
+
+    set supported_p \
+	[concat \
+	     "((__PTX_ISA_VERSION_MAJOR__ == $major" \
+	     "  && __PTX_ISA_VERSION_MINOR__ >= $minor)" \
+	     " || (__PTX_ISA_VERSION_MAJOR__ > $major))"]
+
+    set src \
+	[list \
+	     "#if $supported_p" \
+	     "#else" \
+	     "#error unsupported" \
+	     "#endif"]
+    set src [join $src "\n"]
+    
+    set res [check_no_compiler_messages $name assembly $src ""]
+
+    return $res
+}
+
+# Return 1 if nvptx code by default compiles for at least PTX ISA version 6.0.
+
+proc check_effective_target_nvptx_default_ptx_isa_version_at_least_6_0 { } {
+    return [check_nvptx_default_ptx_isa_version_at_least 6 0]
+}
+
+# Return 1 if nvptx code with PTX ISA version major.minor or higher can be run.
+
+proc check_nvptx_runtime_ptx_isa_version_at_least { major minor } {
+    set name nvptx_runtime_ptx_isa_version_${major}_${minor}
+
+    set default \
+	[check_nvptx_default_ptx_isa_version_at_least \
+	     ${major} ${minor}]
+
+    if { $default } {
+	set flag ""
+    } else {
+	set flag "-mptx=$major.$minor"
+    }
+
+    set res [check_runtime $name {
+	int main (void) { return 0; }
+    } $flag]
+
+    return $res
+}
+
+# Return 1 if the nvptx runtime environment supports the PTX ISA directive
+# '.alias'.
+
+proc check_effective_target_nvptx_runtime_alias_ptx { } {
+    return [check_nvptx_runtime_ptx_isa_version_at_least 6 3]
+}
+
+# Add options to enable nvptx using the PTX ISA directive '.alias'.
+
+proc add_options_for_nvptx_alias_ptx { flags } {
+    append flags " -malias"
+
+    if { ![check_nvptx_default_ptx_isa_version_at_least 6 3] } {
+	append flags " -mptx=6.3"
+    }
+
+    return $flags
+}