[compiler-rt] r255327 - [PGO] add a test case in profiler runtime

[Xinliang David Li via llvm-commits]

Author: davidxl
Date: Thu Dec 10 23:43:55 2015
New Revision: 255327

URL: http://llvm.org/viewvc/llvm-project?rev=255327&view=rev
Log:
[PGO] add a test case in profiler runtime

Add a test case to cover profile dumping of functions with no
value sites, functions with value sites but no dynamic VP data, 
and functions with runtime VP data.



Added:
    compiler-rt/trunk/test/profile/instrprof-value-prof-2.c

Added: compiler-rt/trunk/test/profile/instrprof-value-prof-2.c
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/test/profile/instrprof-value-prof-2.c?rev=255327&view=auto
==============================================================================
--- compiler-rt/trunk/test/profile/instrprof-value-prof-2.c (added)
+++ compiler-rt/trunk/test/profile/instrprof-value-prof-2.c Thu Dec 10 23:43:55 2015
@@ -0,0 +1,135 @@
+// RUN: %clang_profgen -O2 -o %t %s
+// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
+// RUN: llvm-profdata merge -o %t.profdata %t.profraw
+// RUN: llvm-profdata show --all-functions -ic-targets  %t.profdata |  FileCheck  %s 
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+typedef struct __llvm_profile_data __llvm_profile_data;
+const __llvm_profile_data *__llvm_profile_begin_data(void);
+const __llvm_profile_data *__llvm_profile_end_data(void);
+void __llvm_profile_set_num_value_sites(__llvm_profile_data *Data,
+                                        uint32_t ValueKind,
+                                        uint16_t NumValueSites);
+__llvm_profile_data *
+__llvm_profile_iterate_data(const __llvm_profile_data *Data);
+void *__llvm_get_function_addr(const __llvm_profile_data *Data);
+void __llvm_profile_instrument_target(uint64_t TargetValue, void *Data,
+                                      uint32_t CounterIndex);
+void callee1() {}
+void callee2() {}
+
+void caller_without_value_site1() {}
+void caller_with_value_site_never_called1() {}
+void caller_with_vp1() {}
+void caller_with_value_site_never_called2() {}
+void caller_without_value_site2() {}
+void caller_with_vp2() {}
+
+int main(int argc, const char *argv[]) {
+  unsigned S, NS = 10, V;
+  const __llvm_profile_data *Data, *DataEnd;
+
+  Data = __llvm_profile_begin_data();
+  DataEnd = __llvm_profile_end_data();
+  for (; Data < DataEnd; Data = __llvm_profile_iterate_data(Data)) {
+    void *func = __llvm_get_function_addr(Data);
+    if (func == caller_without_value_site1 ||
+        func == caller_without_value_site2 ||
+        func == callee1 || func == callee2 || func == main)
+      continue;
+
+    __llvm_profile_set_num_value_sites((__llvm_profile_data *)Data,
+                                       0 /*IPVK_IndirectCallTarget */, 10);
+
+    if (func == caller_with_value_site_never_called1 ||
+        func == caller_with_value_site_never_called2)
+      continue;
+    for (S = 0; S < NS; S++) {
+      unsigned C;
+      for (C = 0; C < S + 1; C++) {
+        __llvm_profile_instrument_target((uint64_t)&callee1, (void *)Data, S);
+        if (C % 2 == 0)
+          __llvm_profile_instrument_target((uint64_t)&callee2, (void *)Data, S);
+      }
+    }
+  }
+}
+
+// CHECK:  caller_with_value_site_never_called2:
+// CHECK-NEXT:    Hash: 0x0000000000000000
+// CHECK-NEXT:    Counters:
+// CHECK-NEXT:    Function count
+// CHECK-NEXT:    Indirect Call Site Count: 10
+// CHECK-NEXT:    Indirect Target Results: 
+// CHECK:       caller_with_vp2:
+// CHECK-NEXT:    Hash: 0x0000000000000000
+// CHECK-NEXT:    Counters:
+// CHECK-NEXT:    Function count:
+// CHECK-NEXT:    Indirect Call Site Count: 10
+// CHECK-NEXT:    Indirect Target Results: 
+// CHECK-NEXT:	[ 0, callee1, 1 ]
+// CHECK-NEXT:	[ 0, callee2, 1 ]
+// CHECK-NEXT:	[ 1, callee1, 2 ]
+// CHECK-NEXT:	[ 1, callee2, 1 ]
+// CHECK-NEXT:	[ 2, callee1, 3 ]
+// CHECK-NEXT:	[ 2, callee2, 2 ]
+// CHECK-NEXT:	[ 3, callee1, 4 ]
+// CHECK-NEXT:	[ 3, callee2, 2 ]
+// CHECK-NEXT:	[ 4, callee1, 5 ]
+// CHECK-NEXT:	[ 4, callee2, 3 ]
+// CHECK-NEXT:	[ 5, callee1, 6 ]
+// CHECK-NEXT:	[ 5, callee2, 3 ]
+// CHECK-NEXT:	[ 6, callee1, 7 ]
+// CHECK-NEXT:	[ 6, callee2, 4 ]
+// CHECK-NEXT:	[ 7, callee1, 8 ]
+// CHECK-NEXT:	[ 7, callee2, 4 ]
+// CHECK-NEXT:	[ 8, callee1, 9 ]
+// CHECK-NEXT:	[ 8, callee2, 5 ]
+// CHECK-NEXT:	[ 9, callee1, 10 ]
+// CHECK-NEXT:	[ 9, callee2, 5 ]
+// CHECK:       caller_with_vp1:
+// CHECK-NEXT:    Hash: 0x0000000000000000
+// CHECK-NEXT:    Counters:
+// CHECK-NEXT:    Function count
+// CHECK-NEXT:    Indirect Call Site Count: 10
+// CHECK-NEXT:    Indirect Target Results: 
+// CHECK-NEXT:	[ 0, callee1, 1 ]
+// CHECK-NEXT:	[ 0, callee2, 1 ]
+// CHECK-NEXT:	[ 1, callee1, 2 ]
+// CHECK-NEXT:	[ 1, callee2, 1 ]
+// CHECK-NEXT:	[ 2, callee1, 3 ]
+// CHECK-NEXT:	[ 2, callee2, 2 ]
+// CHECK-NEXT:	[ 3, callee1, 4 ]
+// CHECK-NEXT:	[ 3, callee2, 2 ]
+// CHECK-NEXT:	[ 4, callee1, 5 ]
+// CHECK-NEXT:	[ 4, callee2, 3 ]
+// CHECK-NEXT:	[ 5, callee1, 6 ]
+// CHECK-NEXT:	[ 5, callee2, 3 ]
+// CHECK-NEXT:	[ 6, callee1, 7 ]
+// CHECK-NEXT:	[ 6, callee2, 4 ]
+// CHECK-NEXT:	[ 7, callee1, 8 ]
+// CHECK-NEXT:	[ 7, callee2, 4 ]
+// CHECK-NEXT:	[ 8, callee1, 9 ]
+// CHECK-NEXT:	[ 8, callee2, 5 ]
+// CHECK-NEXT:	[ 9, callee1, 10 ]
+// CHECK-NEXT:	[ 9, callee2, 5 ]
+// CHECK:       caller_with_value_site_never_called1:
+// CHECK-NEXT:    Hash: 0x0000000000000000
+// CHECK-NEXT:    Counters:
+// CHECK-NEXT:    Function count:
+// CHECK-NEXT:    Indirect Call Site Count: 10
+// CHECK-NEXT:    Indirect Target Results: 
+// CHECK:       caller_without_value_site2:
+// CHECK-NEXT:    Hash: 0x0000000000000000
+// CHECK-NEXT:    Counters:
+// CHECK-NEXT:    Function count:
+// CHECK-NEXT:    Indirect Call Site Count: 0
+// CHECK-NEXT:    Indirect Target Results: 
+// CHECK:       caller_without_value_site1:
+// CHECK-NEXT:    Hash: 0x0000000000000000
+// CHECK-NEXT:    Counters:
+// CHECK-NEXT:    Function count:
+// CHECK-NEXT:    Indirect Call Site Count: 0
+// CHECK-NEXT:    Indirect Target Results: