[OPENMP] -fopenmp enables OpenMP support (fix for http://llvm.org/PR23492)

-fopenmp turns on OpenMP support and links libiomp5 as OpenMP library. Also there is -fopenmp={libiomp5|libgomp} option that allows to override effect of -fopenmp and link libgomp library (if -fopenmp=libgomp is specified).
Differential Revision: http://reviews.llvm.org/D9736

llvm-svn: 237769

1 files changed, 15 insertions, 17 deletions

diff --git a/clang/test/OpenMP/linking.c b/clang/test/OpenMP/linking.c
index 979ba1f4e41..a2757a512fe 100644
--- a/clang/test/OpenMP/linking.c
+++ b/clang/test/OpenMP/linking.c
@@ -1,18 +1,18 @@
 // Test the that the driver produces reasonable linker invocations with
-// -fopenmp or -fopenmp=libiomp5|libgomp.
+// -fopenmp or -fopenmp|libgomp.
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
 // RUN:     -fopenmp -target i386-unknown-linux \
 // RUN:   | FileCheck --check-prefix=CHECK-LD-32 %s
 // CHECK-LD-32: "{{.*}}ld{{(.exe)?}}"
-// CHECK-LD-32: "-lgomp" "-lrt" "-lgcc"
+// CHECK-LD-32: "-liomp5" "-lgcc"
 // CHECK-LD-32: "-lpthread" "-lc"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
 // RUN:     -fopenmp -target x86_64-unknown-linux \
 // RUN:   | FileCheck --check-prefix=CHECK-LD-64 %s
 // CHECK-LD-64: "{{.*}}ld{{(.exe)?}}"
-// CHECK-LD-64: "-lgomp" "-lrt" "-lgcc"
+// CHECK-LD-64: "-liomp5" "-lgcc"
 // CHECK-LD-64: "-lpthread" "-lc"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
@@ -30,14 +30,14 @@
 // CHECK-GOMP-LD-64: "-lpthread" "-lc"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -fopenmp=libiomp5 -target i386-unknown-linux \
+// RUN:     -fopenmp -target i386-unknown-linux \
 // RUN:   | FileCheck --check-prefix=CHECK-IOMP5-LD-32 %s
 // CHECK-IOMP5-LD-32: "{{.*}}ld{{(.exe)?}}"
 // CHECK-IOMP5-LD-32: "-liomp5" "-lgcc"
 // CHECK-IOMP5-LD-32: "-lpthread" "-lc"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -fopenmp=libiomp5 -target x86_64-unknown-linux \
+// RUN:     -fopenmp -target x86_64-unknown-linux \
 // RUN:   | FileCheck --check-prefix=CHECK-IOMP5-LD-64 %s
 // CHECK-IOMP5-LD-64: "{{.*}}ld{{(.exe)?}}"
 // CHECK-IOMP5-LD-64: "-liomp5" "-lgcc"
@@ -54,18 +54,16 @@
 // CHECK-LIB-LD-64: error: unsupported argument 'lib' to option 'fopenmp='
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -fopenmp -fopenmp=libiomp5 -target i386-unknown-linux \
-// RUN:   | FileCheck --check-prefix=CHECK-LD-WARN-32 %s
-// CHECK-LD-WARN-32: warning: argument unused during compilation: '-fopenmp=libiomp5'
-// CHECK-LD-WARN-32: "{{.*}}ld{{(.exe)?}}"
-// CHECK-LD-WARN-32: "-lgomp" "-lrt" "-lgcc"
-// CHECK-LD-WARN-32: "-lpthread" "-lc"
+// RUN:     -fopenmp -fopenmp=libgomp -target i386-unknown-linux \
+// RUN:   | FileCheck --check-prefix=CHECK-LD-OVERRIDE-32 %s
+// CHECK-LD-OVERRIDE-32: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD-OVERRIDE-32: "-lgomp" "-lrt" "-lgcc"
+// CHECK-LD-OVERRIDE-32: "-lpthread" "-lc"
 //
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
-// RUN:     -fopenmp -fopenmp=libiomp5 -target x86_64-unknown-linux \
-// RUN:   | FileCheck --check-prefix=CHECK-LD-WARN-64 %s
-// CHECK-LD-WARN-64: warning: argument unused during compilation: '-fopenmp=libiomp5'
-// CHECK-LD-WARN-64: "{{.*}}ld{{(.exe)?}}"
-// CHECK-LD-WARN-64: "-lgomp" "-lrt" "-lgcc"
-// CHECK-LD-WARN-64: "-lpthread" "-lc"
+// RUN:     -fopenmp -fopenmp=libgomp -target x86_64-unknown-linux \
+// RUN:   | FileCheck --check-prefix=CHECK-LD-OVERRIDE-64 %s
+// CHECK-LD-OVERRIDE-64: "{{.*}}ld{{(.exe)?}}"
+// CHECK-LD-OVERRIDE-64: "-lgomp" "-lrt" "-lgcc"
+// CHECK-LD-OVERRIDE-64: "-lpthread" "-lc"
 //