[libgomp] In OpenACC offloading testing, be more explicit in what is supported, and what is not, or why not

	libgomp/
	* testsuite/lib/libgomp.exp: Error out for unknown offload target.
	* testsuite/libgomp.oacc-c++/c++.exp: Likewise.  Report if
	"offloading: supported, but hardware not accessible".
	* testsuite/libgomp.oacc-c/c.exp: Likewise.
	* testsuite/libgomp.oacc-fortran/fortran.exp: Likewise.

From-SVN: r269106

5 files changed, 19 insertions, 8 deletions

diff --git a/libgomp/ChangeLog b/libgomp/ChangeLog
index f310c2f..32bc21f 100644
--- a/libgomp/ChangeLog
+++ b/libgomp/ChangeLog
@@ -1,3 +1,11 @@
+2019-02-22  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* testsuite/lib/libgomp.exp: Error out for unknown offload target.
+	* testsuite/libgomp.oacc-c++/c++.exp: Likewise.  Report if
+	"offloading: supported, but hardware not accessible".
+	* testsuite/libgomp.oacc-c/c.exp: Likewise.
+	* testsuite/libgomp.oacc-fortran/fortran.exp: Likewise.
+
 2019-02-19  Chung-Lin Tang <cltang@codesourcery.com>
 
 	PR c/87924
diff --git a/libgomp/testsuite/lib/libgomp.exp b/libgomp/testsuite/lib/libgomp.exp
index 04738a9..2392642 100644
--- a/libgomp/testsuite/lib/libgomp.exp
+++ b/libgomp/testsuite/lib/libgomp.exp
@@ -58,6 +58,9 @@ foreach offload_target_openacc $offload_targets_s {
 	hsa {
 	    continue
 	}
+	default {
+	    error "Unknown offload target: $offload_target_openacc"
+	}
     }
     lappend offload_targets_s_openacc "$offload_target_openacc"
 }
@@ -375,7 +378,7 @@ proc check_effective_target_openacc_nvidia_accel_configured { } {
     return [is-effective-target lp64]
 }
 
-# Return 1 if at least one nvidia board is present.
+# Return 1 if at least one Nvidia GPU is accessible.
 
 proc check_effective_target_openacc_nvidia_accel_present { } {
     return [check_runtime openacc_nvidia_accel_present {
@@ -386,7 +389,7 @@ proc check_effective_target_openacc_nvidia_accel_present { } {
     } "" ]
 }
 
-# Return 1 if at least one nvidia board is present, and the nvidia device type
+# Return 1 if at least one Nvidia GPU is accessible, and the nvidia device type
 # is selected by default by means of setting the environment variable
 # ACC_DEVICE_TYPE.
 
diff --git a/libgomp/testsuite/libgomp.oacc-c++/c++.exp b/libgomp/testsuite/libgomp.oacc-c++/c++.exp
index 9beadd6..d0e5f42 100644
--- a/libgomp/testsuite/libgomp.oacc-c++/c++.exp
+++ b/libgomp/testsuite/libgomp.oacc-c++/c++.exp
@@ -88,7 +88,7 @@ if { $lang_test_file_found } {
 	    nvidia {
 		if { ![check_effective_target_openacc_nvidia_accel_present] } {
 		    # Don't bother; execution testing is going to FAIL.
-		    untested "$subdir $offload_target_openacc offloading"
+		    untested "$subdir $offload_target_openacc offloading: supported, but hardware not accessible"
 		    continue
 		}
 
@@ -101,7 +101,7 @@ if { $lang_test_file_found } {
 		set acc_mem_shared 0
 	    }
 	    default {
-		set acc_mem_shared 0
+		error "Unknown OpenACC device type: $offload_target_openacc"
 	    }
 	}
 	set tagopt "$tagopt -DACC_MEM_SHARED=$acc_mem_shared"
diff --git a/libgomp/testsuite/libgomp.oacc-c/c.exp b/libgomp/testsuite/libgomp.oacc-c/c.exp
index 4475bf5..77e852e 100644
--- a/libgomp/testsuite/libgomp.oacc-c/c.exp
+++ b/libgomp/testsuite/libgomp.oacc-c/c.exp
@@ -51,7 +51,7 @@ foreach offload_target_openacc $offload_targets_s_openacc {
 	nvidia {
 	    if { ![check_effective_target_openacc_nvidia_accel_present] } {
 		# Don't bother; execution testing is going to FAIL.
-		untested "$subdir $offload_target_openacc offloading"
+		untested "$subdir $offload_target_openacc offloading: supported, but hardware not accessible"
 		continue
 	    }
 
@@ -64,7 +64,7 @@ foreach offload_target_openacc $offload_targets_s_openacc {
 	    set acc_mem_shared 0
 	}
 	default {
-	    set acc_mem_shared 0
+	    error "Unknown OpenACC device type: $offload_target_openacc"
 	}
     }
     set tagopt "$tagopt -DACC_MEM_SHARED=$acc_mem_shared"
diff --git a/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp b/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp
index 663c932..a262a8a 100644
--- a/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp
+++ b/libgomp/testsuite/libgomp.oacc-fortran/fortran.exp
@@ -76,14 +76,14 @@ if { $lang_test_file_found } {
 	    nvidia {
 		if { ![check_effective_target_openacc_nvidia_accel_present] } {
 		    # Don't bother; execution testing is going to FAIL.
-		    untested "$subdir $offload_target_openacc offloading"
+		    untested "$subdir $offload_target_openacc offloading: supported, but hardware not accessible"
 		    continue
 		}
 
 		set acc_mem_shared 0
 	    }
 	    default {
-		set acc_mem_shared 0
+		error "Unknown OpenACC device type: $offload_target_openacc"
 	    }
 	}
 	set tagopt "$tagopt -DACC_MEM_SHARED=$acc_mem_shared"