The flag "-coverage-function-names-in-data" is actually backwards -- we do
emit function names in .gcda files by default, and the flag turns that off!
Rename the flag to make it match what it actually does. This keeps the default
format compatible with gcc 4.2.
Also add a test for this flag.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177475 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/code-coverage.c b/test/CodeGen/code-coverage.c
index 2c5aa6b..1b87d64 100644
--- a/test/CodeGen/code-coverage.c
+++ b/test/CodeGen/code-coverage.c
@@ -1,4 +1,5 @@
// RUN: %clang_cc1 -emit-llvm -disable-red-zone -femit-coverage-data %s -o - | FileCheck %s
+// RUN: %clang_cc1 -emit-llvm -disable-red-zone -femit-coverage-data -coverage-no-function-names-in-data %s -o - | FileCheck %s --check-prefix WITHOUTNAMES
// <rdar://problem/12843084>
@@ -15,7 +16,14 @@
// Check that the noredzone flag is set on the generated functions.
// CHECK: void @__llvm_gcov_indirect_counter_increment(i32* %{{.*}}, i64** %{{.*}}) unnamed_addr [[NRZ:#[0-9]+]]
+
+// Inside llvm_gcov_writeout, check that -coverage-no-function-names-in-data
+// passes null as the function name.
// CHECK: void @__llvm_gcov_writeout() unnamed_addr [[NRZ]]
+// CHECK: call void @llvm_gcda_emit_function({{.*}}, i8* getelementptr {{.*}}, {{.*}})
+// WITHOUTNAMES: void @__llvm_gcov_writeout() unnamed_addr
+// WITHOUTNAMES: call void @llvm_gcda_emit_function({{.*}}, i8* null, {{.*}})
+
// CHECK: void @__llvm_gcov_flush() unnamed_addr [[NRZ]]
// CHECK: void @__llvm_gcov_init() unnamed_addr [[NRZ]]