Index: utils/release/test-release.sh
===================================================================
--- utils/release/test-release.sh
+++ utils/release/test-release.sh
@@ -35,7 +35,7 @@
 do_asserts="no"
 do_compare="yes"
 BuildDir="`pwd`"
-BuildTriple=""
+use_autoconf="no"
 
 function usage() {
     echo "usage: `basename $0` -release X.Y.Z -rc NUM [OPTIONS]"
@@ -53,10 +53,14 @@
     echo " -test-asserts        Test with asserts on. [default: no]"
     echo " -no-compare-files    Don't test that phase 2 and 3 files are identical."
     echo " -use-gzip            Use gzip instead of xz."
-    echo " -build-triple TRIPLE The build triple for this machine"
-    echo "                      [default: use config.guess]"
+    echo " -use-autoconf        Use autoconf instead of cmake"
 }
 
+if [ `uname -s` = "Darwin" ]; then
+  # compiler-rt doesn't yet build with CMake on Darwin.
+  use_autoconf="yes"
+fi
+
 while [ $# -gt 0 ]; do
     case $1 in
         -release | --release )
@@ -75,10 +79,6 @@
             shift
             Triple="$1"
             ;;
-        -build-triple | --build-triple )
-            shift
-            BuildTriple="$1"
-            ;;
         -j* )
             NumJobs="`echo $1 | sed -e 's,-j\([0-9]*\),\1,g'`"
             if [ -z "$NumJobs" ]; then
@@ -111,6 +111,9 @@
         -use-gzip | --use-gzip )
             use_gzip="yes"
             ;;
+        -use-autoconf | --use-autoconf )
+            use_autoconf="yes"
+            ;;
         -help | --help | -h | --h | -\? )
             usage
             exit 0
@@ -237,19 +240,23 @@
     Flavor="$2"
     ObjDir="$3"
     InstallDir="$4"
+    ExtraFlags=""
 
     case $Flavor in
         Release | Release-64 )
-            Optimized="yes"
-            Assertions="no"
+            BuildType="Release"
+            Assertions="OFF"
+            ConfigureFlags="--enable-optimized --disable-assertions"
             ;;
         Release+Asserts )
-            Optimized="yes"
-            Assertions="yes"
+            BuildType="Release"
+            Assertions="ON"
+            ConfigureFlags="--enable-optimized --enable-assertions"
             ;;
         Debug )
-            Optimized="no"
-            Assertions="yes"
+            BuildType="Debug"
+            Assertions="ON"
+            ConfigureFlags="--disable-optimized --enable-assertions"
             ;;
         * )
             echo "# Invalid flavor '$Flavor'"
@@ -258,25 +265,48 @@
             ;;
     esac
 
+    if [ "$Flavor" = "Release-64" ]; then
+        ExtraFlags="-m64"
+    fi
+
     echo "# Using C compiler: $c_compiler"
     echo "# Using C++ compiler: $cxx_compiler"
-
-    build_triple_option="${BuildTriple:+--build=$BuildTriple}"
+    echo "# ExtraFlags: $ExtraFlags"
 
     cd $ObjDir
     echo "# Configuring llvm $Release-$RC $Flavor"
-    echo "# $BuildDir/llvm.src/configure --prefix=$InstallDir \
-        --enable-optimized=$Optimized \
-        --enable-assertions=$Assertions \
-        --disable-timestamps \
-        $build_triple_option"
-    env CC="$c_compiler" CXX="$cxx_compiler" \
-        $BuildDir/llvm.src/configure --prefix=$InstallDir \
-        --enable-optimized=$Optimized \
-        --enable-assertions=$Assertions \
-        --disable-timestamps \
-        $build_triple_option \
-        2>&1 | tee $LogDir/llvm.configure-Phase$Phase-$Flavor.log
+
+
+    if [ "$use_autoconf" = "yes" ]; then
+        echo "#" env CC="$c_compiler" CXX="$cxx_compiler" \
+            CFLAGS="$ExtraFlags" CXXFLAGS="$ExtraFlags" \
+            $BuildDir/llvm.src/configure --prefix=$InstallDir \
+            $ConfigureFlags \
+            --disable-timestamps \
+            2>&1 | tee $LogDir/llvm.configure-Phase$Phase-$Flavor.log
+        env CC="$c_compiler" CXX="$cxx_compiler" \
+            CFLAGS="$ExtraFlags" CXXFLAGS="$ExtraFlags" \
+            $BuildDir/llvm.src/configure --prefix=$InstallDir \
+            $ConfigureFlags \
+            --disable-timestamps \
+            2>&1 | tee $LogDir/llvm.configure-Phase$Phase-$Flavor.log
+    else
+        echo "#" env CC="$c_compiler" CXX="$cxx_compiler" \
+            CFLAGS="$ExtraFlags" CXXFLAGS="$ExtraFlags" \
+            cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=$InstallDir \
+            -DCMAKE_BUILD_TYPE=$BuildType -DLLVM_ENABLE_ASSERTIONS=$Assertions \
+            -DLLVM_ENABLE_TIMESTAMPS=OFF -DLLVM_CONFIGTIME="(timestamp not enabled)" \
+            $BuildDir/llvm.src \
+            2>&1 | tee $LogDir/llvm.configure-Phase$Phase-$Flavor.log
+        env CC="$c_compiler" CXX="$cxx_compiler" \
+            CFLAGS="$ExtraFlags" CXXFLAGS="$ExtraFlags" \
+            cmake -G "Unix Makefiles" -DCMAKE_INSTALL_PREFIX=$InstallDir \
+            -DCMAKE_BUILD_TYPE=$BuildType -DLLVM_ENABLE_ASSERTIONS=$Assertions \
+            -DLLVM_ENABLE_TIMESTAMPS=OFF -DLLVM_CONFIGTIME="(timestamp not enabled)" \
+            $BuildDir/llvm.src \
+            2>&1 | tee $LogDir/llvm.configure-Phase$Phase-$Flavor.log
+    fi
+
     cd $BuildDir
 }
 
@@ -284,16 +314,11 @@
     Phase="$1"
     Flavor="$2"
     ObjDir="$3"
-    ExtraOpts=""
-
-    if [ "$Flavor" = "Release-64" ]; then
-        ExtraOpts="EXTRA_OPTIONS=-m64"
-    fi
 
     cd $ObjDir
     echo "# Compiling llvm $Release-$RC $Flavor"
-    echo "# ${MAKE} -j $NumJobs VERBOSE=1 $ExtraOpts"
-    ${MAKE} -j $NumJobs VERBOSE=1 $ExtraOpts \
+    echo "# ${MAKE} -j $NumJobs VERBOSE=1"
+    ${MAKE} -j $NumJobs VERBOSE=1 \
         2>&1 | tee $LogDir/llvm.make-Phase$Phase-$Flavor.log
 
     echo "# Installing llvm $Release-$RC $Flavor"
@@ -309,10 +334,15 @@
     ObjDir="$3"
 
     cd $ObjDir
-    ${MAKE} -k check-all \
+    ${MAKE} -j $NumJobs -k check-all \
         2>&1 | tee $LogDir/llvm.check-Phase$Phase-$Flavor.log
-    ${MAKE} -k unittests \
-        2>&1 | tee $LogDir/llvm.unittests-Phase$Phase-$Flavor.log
+
+    if [ "$use_autoconf" = "yes" ]; then
+        # In the cmake build, unit tests are run as part of check-all.
+        ${MAKE} -k unittests \
+            2>&1 | tee $LogDir/llvm.unittests-Phase$Phase-$Flavor.log
+    fi
+
     cd $BuildDir
 }