Add profiling support for Intel Parallel Amplifier XE (VTune) for JITted code in LLVM.

Also refactor the existing OProfile profiling code to reuse the same interfaces with the VTune profiling code.
In addition, unit tests for the profiling interfaces were added.

This patch was prepared by Andrew Kaylor and Daniel Malea, and reviewed in the llvm-commits list by Jim Grosbach



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152620 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 71 insertions, 17 deletions

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 5ea2e306a5..c0027191d7 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -1183,29 +1183,83 @@ AC_ARG_WITH(oprofile,
         *) llvm_cv_oppath="${withval}/lib/oprofile"
            CPPFLAGS="-I${withval}/include";;
       esac
-      if test -n "$llvm_cv_oppath" ; then
-        LIBS="$LIBS -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
-        dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
-        dnl libbfd is not included properly in libopagent in some Debian
-        dnl versions.  If libbfd isn't found at all, we assume opagent works
-        dnl anyway.
-        AC_SEARCH_LIBS(bfd_init, bfd, [], [])
-        AC_SEARCH_LIBS(op_open_agent, opagent, [], [
-          echo "Error! You need to have libopagent around."
-          exit -1
-        ])
-        AC_CHECK_HEADER([opagent.h], [], [
-          echo "Error! You need to have opagent.h around."
-          exit -1
-          ])
-      fi
+      case $llvm_cv_os_type in
+        Linux)
+          if test -n "$llvm_cv_oppath" ; then
+            LIBS="$LIBS -lopagent -L${llvm_cv_oppath} -Wl,-rpath,${llvm_cv_oppath}"
+            dnl Work around http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=537744:
+            dnl libbfd is not included properly in libopagent in some Debian
+            dnl versions.  If libbfd isn't found at all, we assume opagent works
+            dnl anyway.
+            AC_SEARCH_LIBS(bfd_init, bfd, [], [])
+            AC_SEARCH_LIBS(op_open_agent, opagent, [], [
+              echo "Error! You need to have libopagent around."
+              exit -1
+            ])
+            AC_CHECK_HEADER([opagent.h], [], [
+              echo "Error! You need to have opagent.h around."
+              exit -1
+              ])
+          fi ;;
+        *)
+          AC_MSG_ERROR([OProfile support is available on Linux only.]) ;;
+      esac 
     ],
     [
       AC_SUBST(USE_OPROFILE, [0])
     ])
-AC_DEFINE_UNQUOTED([USE_OPROFILE],$USE_OPROFILE,
+AC_DEFINE_UNQUOTED([LLVM_USE_OPROFILE],$USE_OPROFILE,
                    [Define if we have the oprofile JIT-support library])
 
+dnl Enable support for Intel JIT Events API.
+AC_ARG_WITH(intel-jitevents,
+  AS_HELP_STRING([--with-intel-jitevents=<vtune-amplifier-dir>],
+    [Specify location of run-time support library for Intel JIT API (default=/opt/intel/vtune_amplifier_xe_2011)]),
+    [
+      case $llvm_cv_os_type in
+        Linux|Win32|Cygwin|MingW) ;;
+        *)
+          AC_MSG_ERROR([
+            Intel JIT API support is available on Linux and Windows only."]) ;;
+      esac
+
+      AC_SUBST(USE_INTEL_JITEVENTS, [1])
+      case "$llvm_cv_target_arch" in
+        x86)    llvm_intel_jitevents_archdir="lib32";;
+        x86_64) llvm_intel_jitevents_archdir="lib64";;
+        *)      echo "Target architecture $llvm_cv_target_arch does not support Intel JIT Events API"
+                exit -1;;
+      esac
+      INTEL_JITEVENTS_INCDIR="/opt/intel/vtune_amplifier_xe_2011/include"
+      INTEL_JITEVENTS_LIBDIR="/opt/intel/vtune_amplifier_xe_2011/$llvm_intel_jitevents_archdir"
+      case "$withval" in
+        /* | [[A-Za-z]]:[[\\/]]*) INTEL_JITEVENTS_INCDIR=$withval/include
+                                  INTEL_JITEVENTS_LIBDIR=$withval/$llvm_intel_jitevents_archdir ;;
+        *) ;;
+      esac
+
+      AC_SUBST(INTEL_JITEVENTS_INCDIR)
+      AC_SUBST(INTEL_JITEVENTS_LIBDIR)
+
+      LIBS="$LIBS -L${INTEL_JITEVENTS_LIBDIR}"
+      CPPFLAGS="$CPPFLAGS -I$INTEL_JITEVENTS_INCDIR"
+
+      AC_SEARCH_LIBS(iJIT_IsProfilingActive, jitprofiling, [], [
+        echo "Error! Cannot find libjitprofiling.a. Please check path specified in flag --with-intel-jitevents"
+        exit -1
+      ])
+      AC_CHECK_HEADER([jitprofiling.h], [], [
+        echo "Error! Cannot find jitprofiling.h. Please check path specified in flag --with-intel-jitevents"
+        exit -1
+      ])
+
+    ],
+    [
+      AC_SUBST(USE_INTEL_JITEVENTS, [0])
+    ])
+AC_DEFINE_UNQUOTED([LLVM_USE_INTEL_JITEVENTS],$USE_INTEL_JITEVENTS,
+                   [Define if we have the Intel JIT API runtime support library])
+
 dnl===-----------------------------------------------------------------------===
 dnl===
 dnl=== SECTION 6: Check for header files