Order File Instrumentation: dump the data in compiler-rt

The profile data will be dumped in a file default_xxx.profraw.order.

Differential Revision: https://reviews.llvm.org/D57530



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355343 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 40 insertions, 0 deletions

diff --git a/test/profile/Inputs/instrprof-order-file-2.c b/test/profile/Inputs/instrprof-order-file-2.c
new file mode 100644
index 000000000..ee4485756
--- /dev/null
+++ b/test/profile/Inputs/instrprof-order-file-2.c
@@ -0,0 +1,7 @@
+__attribute__((noinline)) int f(int a) {
+  return a + 1;
+}
+
+__attribute__((noinline)) int g(int a) {
+  return a + 2;
+}
diff --git a/test/profile/Inputs/instrprof-order-file.c b/test/profile/Inputs/instrprof-order-file.c
new file mode 100644
index 000000000..9251a8e25
--- /dev/null
+++ b/test/profile/Inputs/instrprof-order-file.c
@@ -0,0 +1,17 @@
+void __llvm_profile_initialize_file(void);
+int __llvm_orderfile_dump(void);
+
+__attribute__((noinline)) int f(int a);
+
+__attribute__((noinline)) int g(int a);
+
+int main(int argc, const char *argv[]) {
+  int a = f(argc);
+  int t = 0;
+  for (int i = 0; i < argc; i++)
+    t += g(a);
+  f(t);
+  __llvm_profile_initialize_file();
+  __llvm_orderfile_dump();
+  return 0;
+}
diff --git a/test/profile/instrprof-order-file.test b/test/profile/instrprof-order-file.test
new file mode 100644
index 000000000..b1133a3e8
--- /dev/null
+++ b/test/profile/instrprof-order-file.test
@@ -0,0 +1,16 @@
+// UNSUPPORTED: windows
+// RUN: rm -rf %t.dir && mkdir -p %t.dir
+// RUN: cd %t.dir
+//
+// RUN: %clang -forder-file-instrumentation -O1 -o %t.2 %S/Inputs/instrprof-order-file-2.c %S/Inputs/instrprof-order-file.c -mllvm -orderfile-write-mapping="mapping.txt"
+// RUN: %run %t.2 ANY
+// RUN: od -h default.profraw.order | FileCheck %s
+// RUN: cat mapping.txt | FileCheck %s --check-prefix=MAPPING
+
+// Make sure we have MD5 for main, then f, then g.
+// CHECK: 0000000      d5fa    e78d    6436    db95    a18f    dd4c    4f75    cc91
+// CHECK: 0000020      f5b2    47ff    6643    b671    0000    0000    0000    0000
+
+// MAPPING: MD5 cc914f75dd4ca18f f
+// MAPPING: MD5 b671664347fff5b2 g
+// MAPPING: MD5 db956436e78dd5fa main