From 69c955a67e1daa4e7d4ab47d562f07da15f0cd3d Mon Sep 17 00:00:00 2001
From: Oscar Fuentes <ofv@wanadoo.es>
Date: Wed, 23 Mar 2011 17:42:13 +0000
Subject: [PATCH] Supports building with a list of targets that does not
 contain X86. Fixes PR9533.

llvm-svn: 128154
---
 CMakeLists.txt                 |  3 +++
 cmake/config-ix.cmake          | 27 +++++++++++----------------
 cmake/modules/LLVMConfig.cmake | 19 +++++++++++++------
 3 files changed, 27 insertions(+), 22 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9474ca819bd..471b45eb813 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -81,6 +81,9 @@ set(LLVM_ALL_TARGETS
   XCore
   )
 
+# List of targets with JIT support:
+set(LLVM_TARGETS_WITH_JIT X86 PowerPC ARM)
+
 if( MSVC )
   set(LLVM_TARGETS_TO_BUILD X86
     CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index e2817f1316b..c5ec54eb0c6 100755
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -321,24 +321,19 @@ elseif (LLVM_NATIVE_ARCH MATCHES "xcore")
 elseif (LLVM_NATIVE_ARCH MATCHES "msp430")
   set(LLVM_NATIVE_ARCH MSP430)
 else ()
-  message(STATUS
-    "Unknown architecture ${LLVM_NATIVE_ARCH}; lli will not JIT code")
-  set(LLVM_NATIVE_ARCH)
+  message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
 endif ()
 
-if (LLVM_NATIVE_ARCH)
-  list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX)
-  if (NATIVE_ARCH_IDX EQUAL -1)
-    message(STATUS
-      "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code")
-    set(LLVM_NATIVE_ARCH)
-  else ()
-    message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}")
-    set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target)
-    set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo)
-    set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter)
-  endif ()
-endif()
+list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX)
+if (NATIVE_ARCH_IDX EQUAL -1)
+  message(STATUS
+    "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code")
+else ()
+  message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}")
+  set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target)
+  set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo)
+  set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter)
+endif ()
 
 if( MINGW )
   set(HAVE_LIBIMAGEHLP 1)
diff --git a/cmake/modules/LLVMConfig.cmake b/cmake/modules/LLVMConfig.cmake
index ec7831da3bb..fd1cfa8690e 100755
--- a/cmake/modules/LLVMConfig.cmake
+++ b/cmake/modules/LLVMConfig.cmake
@@ -64,15 +64,22 @@ function(explicit_map_components_to_libraries out_libs)
   string(TOUPPER "${llvm_libs}" capitalized_libs)
 
   # Expand some keywords:
+  list(FIND LLVM_TARGETS_TO_BUILD "${LLVM_NATIVE_ARCH}" have_native_backend)
   list(FIND link_components "engine" engine_required)
-  if( NOT engine_required STREQUAL "-1" )
-    # TODO: as we assume we are on X86, this is `jit'.
-    list(APPEND link_components "jit")
-    list(APPEND link_components "native")
+  if( NOT engine_required EQUAL -1 )
+    list(FIND LLVM_TARGETS_WITH_JIT "${LLVM_NATIVE_ARCH}" have_jit)
+    if( NOT have_native_backend EQUAL -1 AND NOT have_jit EQUAL -1 )
+      list(APPEND link_components "jit")
+      list(APPEND link_components "native")
+    else()
+      list(APPEND link_components "interpreter")
+    endif()
   endif()
   list(FIND link_components "native" native_required)
-  if( NOT native_required STREQUAL "-1" )
-    list(APPEND link_components "X86")
+  if( NOT native_required EQUAL -1 )
+    if( NOT have_native_backend EQUAL -1 )
+      list(APPEND link_components ${LLVM_NATIVE_ARCH})
+    endif()
   endif()
 
   # Translate symbolic component names to real libraries: