[compiler-rt] r277276 - [Profile] Add a new test case

[Xinliang David Li via llvm-commits]

Author: davidxl
Date: Sat Jul 30 15:12:00 2016
New Revision: 277276

URL: http://llvm.org/viewvc/llvm-project?rev=277276&view=rev
Log:
[Profile] Add a new test case

The end-end test checks that cs-profile counter update
is obtained as expected.

Added:
    compiler-rt/trunk/test/profile/Linux/instrprof-cs.c

Added: compiler-rt/trunk/test/profile/Linux/instrprof-cs.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/profile/Linux/instrprof-cs.c?rev=277276&view=auto
==============================================================================
--- compiler-rt/trunk/test/profile/Linux/instrprof-cs.c (added)
+++ compiler-rt/trunk/test/profile/Linux/instrprof-cs.c Sat Jul 30 15:12:00 2016
@@ -0,0 +1,35 @@
+// RUN: rm -fr %t.prof
+// RUN: %clang_pgogen=%t.prof/ -o %t.gen.cs -O2 %s
+// RUN: %t.gen.cs
+// RUN: llvm-profdata merge -o %t.cs.profdata %t.prof/
+// Check context sensitive profile
+// RUN: %clang_profuse=%t.cs.profdata  -O2 -emit-llvm -S %s -o - | FileCheck %s --check-prefix=CS
+//
+// RUN: %clang_profgen=%t.profraw -o %t.gen.cis -O2 %s
+// RUN: %t.gen.cis
+// RUN: llvm-profdata merge -o %t.cis.profdata %t.profraw
+// Check context insenstive profile
+// RUN: %clang_profuse=%t.cis.profdata  -O2 -emit-llvm -S %s -o - | FileCheck %s --check-prefix=CIS
+int g1 = 1;
+int g2 = 2;
+static void toggle(int t) {
+  if (t & 1)
+    g1 *= t;
+  else
+    g2 *= t;
+}
+
+int main() {
+  int i;
+  // CS: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD1:[0-9]+]]
+  // CIS: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD:[0-9]+]]
+  toggle(g1);
+  // CS: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD2:[0-9]+]]
+  // CIS: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD:[0-9]+]]
+  toggle(g2);
+  return 0;
+}
+
+// CS: ![[PD1]] = !{!"branch_weights", i32 0, i32 1}
+// CS: ![[PD2]] = !{!"branch_weights", i32 1, i32 0}
+// CIS: ![[PD]] = !{!"branch_weights", i32 2, i32 2}