Index: test/tools/llvm-cov/Inputs/path_equivalence.proftext
===================================================================
--- /dev/null
+++ test/tools/llvm-cov/Inputs/path_equivalence.proftext
@@ -0,0 +1,8 @@
+main
+# Func Hash:
+0
+# Num Counters:
+1
+# Counter Values:
+1
+
Index: test/tools/llvm-cov/path_equivalence.c
===================================================================
--- /dev/null
+++ test/tools/llvm-cov/path_equivalence.c
@@ -0,0 +1,7 @@
+// RUN: llvm-profdata merge %S/Inputs/path_equivalence.proftext -o %t.profdata
+// RUN: llvm-cov show %S/Inputs/path_equivalence.covmapping -instr-profile=%t.profdata -path-equivalence=/tmp,%S | FileCheck %s
+
+int main() {} // CHECK: [[@LINE]]|      1|int main() {}
+
+// RUN: llvm-cov show %S/Inputs/path_equivalence.covmapping -instr-profile=%t.profdata -path-equivalence=/tmp,%S --filename-equivalence %s | FileCheck --check-prefix IGNORED_REMAP %s
+// IGNORED_REMAP: warning: path-equivalence was ignored as source files were given