- LLVM_VERSION_MAJOR=`echo $LLVM_VERSION | cut -d. -f1`
- if test "$LLVM_VERSION_MAJOR" -lt "3" -o "x$LLVM_VERSION" = "x3.0"; then
- AC_MSG_ERROR([LLVM 3.1 or newer is required for the r600/radeonsi llvm compiler.])
+ LLVM_REQUIRED_VERSION_MAJOR="3"
+ LLVM_REQUIRED_VERSION_MINOR="2"
+ LLVM_AVAILABLE_VERSION_MAJOR=`echo $LLVM_VERSION | cut -d. -f1`
+ LLVM_AVAILABLE_VERSION_MINOR=`echo $LLVM_VERSION | cut -d. -f2`
+ if test "$LLVM_AVAILABLE_VERSION_MAJOR" -lt "$LLVM_REQUIRED_VERSION_MAJOR" -o [ "$LLVM_AVAILABLE_VERSION_MAJOR" -eq "$LLVM_REQUIRED_VERSION_MAJOR" -a "$LLVM_AVAILABLE_VERSION_MINOR" -lt "$LLVM_REQUIRED_VERSION_MINOR" ] ; then
+ AC_MSG_ERROR([LLVM $LLVM_REQUIRED_VERSION_MAJOR.$LLVM_REQUIRED_VERSION_MINOR or newer with AMDGPU target enabled is required.
+ To use the r600/radeonsi LLVM backend, you need to fetch the LLVM source from:
+ git://people.freedesktop.org/~tstellar/llvm master
+ and build with --enable-experimental-targets=AMDGPU])