Add a test with __gcov_flush called before terminating the program.

Test for https://bugs.llvm.org/show_bug.cgi?id=38067.

llvm-svn: 337150

Author: marco-c

compiler-rt/test/profile/Inputs/instrprof-gcov-__gcov_flush-terminate.c

@@ -0,0 +1,13 @@
+int main(void) {
+  int i = 22;
+
+  __gcov_flush();
+
+  i = 42;
+
+  asm("int $3");
+
+  i = 84;
+
+  return 0;
+}

compiler-rt/test/profile/Inputs/instrprof-gcov-__gcov_flush-terminate.c.gcov

@@ -0,0 +1,18 @@
+// CHECK:        -:    0:Source:{{.*}}Inputs/instrprof-gcov-__gcov_flush-terminate.c
+// CHECK-NEXT:        -:    0:Graph:instrprof-gcov-__gcov_flush-terminate.gcno
+// CHECK-NEXT:        -:    0:Data:instrprof-gcov-__gcov_flush-terminate.gcda
+// CHECK-NEXT:        -:    0:Runs:1
+// CHECK-NEXT:        -:    0:Programs:1
+// CHECK-NEXT:        -:    1:int main(void) {
+// CHECK-NEXT:        1:    2:  int i = 22;
+// CHECK-NEXT:        -:    3:
+// CHECK-NEXT:        1:    4:  __gcov_flush();
+// CHECK-NEXT:        -:    5:
+// CHECK-NEXT:    #####:    6:  i = 42;
+// CHECK-NEXT:        -:    7:
+// CHECK-NEXT:    #####:    8:  asm("int $3");
+// CHECK-NEXT:        -:    9:
+// CHECK-NEXT:    #####:   10:  i = 84;
+// CHECK-NEXT:        -:   11:
+// CHECK-NEXT:    #####:   12:  return 0;
+// CHECK-NEXT:        -:   13:}

compiler-rt/test/profile/instrprof-gcov-__gcov_flush-terminate.test

@@ -0,0 +1,12 @@
+XFAIL: *
+
+RUN: mkdir -p %t.d
+RUN: cd %t.d
+
+RUN: %clang --coverage -o %t %S/Inputs/instrprof-gcov-__gcov_flush-terminate.c
+RUN: test -f instrprof-gcov-__gcov_flush-terminate.gcno
+
+RUN: rm -f instrprof-gcov-__gcov_flush-terminate.gcda
+RUN: %expect_crash %run %t
+RUN: llvm-cov gcov instrprof-gcov-__gcov_flush-terminate.gcda
+RUN: FileCheck --match-full-lines --strict-whitespace --input-file instrprof-gcov-__gcov_flush-terminate.c.gcov %S/Inputs/instrprof-gcov-__gcov_flush-terminate.c.gcov