diff --git a/compiler-rt/test/profile/instrprof-basic.c b/compiler-rt/test/profile/instrprof-basic.c
--- a/compiler-rt/test/profile/instrprof-basic.c
+++ b/compiler-rt/test/profile/instrprof-basic.c
@@ -32,13 +32,13 @@
 // Test that merging is enabled by default with -fprofile-generate
 // RUN: rm -fr %t.dir4
 // RUN: mkdir -p %t.dir4
-// RUN: %clang_pgogen -o %t.dir4/merge4 -O0 %s
+// RUN: %clang_pgogen -o %t.dir4/merge4.exe -O0 %s
 // RUN: cd %t.dir4
-// RUN: %run %t.dir4/merge4
-// RUN: %run %t.dir4/merge4
-// RUN: %run %t.dir4/merge4
-// RUN: %run %t.dir4/merge4
-// RUN: rm -f %t.dir4/merge4
+// RUN: %run %t.dir4/merge4.exe
+// RUN: %run %t.dir4/merge4.exe
+// RUN: %run %t.dir4/merge4.exe
+// RUN: %run %t.dir4/merge4.exe
+// RUN: rm -f %t.dir4/merge4.exe
 // RUN: llvm-profdata merge -o %t.m4.profdata ./
 // RUN: %clang_profuse=%t.m4.profdata -O0 -o - -S -emit-llvm %s | FileCheck %s --check-prefix=COMMON  --check-prefix=PGOMERGE
 
diff --git a/compiler-rt/test/profile/instrprof-tmpdir.c b/compiler-rt/test/profile/instrprof-tmpdir.c
--- a/compiler-rt/test/profile/instrprof-tmpdir.c
+++ b/compiler-rt/test/profile/instrprof-tmpdir.c
@@ -1,18 +1,18 @@
 // RUN: rm -rf %t
 // RUN: mkdir -p %t
 // RUN: cd %t
-// RUN: %clang_profgen -o %t/binary %s
+// RUN: %clang_profgen -o %t/binary.exe %s
 //
 // Check that a dir separator is appended after %t is subsituted.
-// RUN: env TMPDIR="%t" LLVM_PROFILE_FILE="%%traw1.profraw" %run ./binary
+// RUN: env TMPDIR="%t" LLVM_PROFILE_FILE="%%traw1.profraw" %run ./binary.exe
 // RUN: llvm-profdata show ./raw1.profraw | FileCheck %s -check-prefix TMPDIR
 //
 // Check that substitution works even if a redundant dir separator is added.
-// RUN: env TMPDIR="%t" LLVM_PROFILE_FILE="%%t/raw2.profraw" %run ./binary
+// RUN: env TMPDIR="%t" LLVM_PROFILE_FILE="%%t/raw2.profraw" %run ./binary.exe
 // RUN: llvm-profdata show ./raw2.profraw | FileCheck %s -check-prefix TMPDIR
 //
 // Check that we fall back to the default path if TMPDIR is missing.
-// RUN: env -u TMPDIR LLVM_PROFILE_FILE="%%t/raw3.profraw" %run ./binary 2>&1 | FileCheck %s -check-prefix MISSING
+// RUN: env -u TMPDIR LLVM_PROFILE_FILE="%%t/raw3.profraw" %run ./binary.exe 2>&1 | FileCheck %s -check-prefix MISSING
 // RUN: llvm-profdata show ./default.profraw | FileCheck %s -check-prefix TMPDIR
 
 // TMPDIR: Maximum function count: 1