Verify loop info.

[oota-llvm.git] / lib / VMCore / Makefile

diff --git a/lib/VMCore/Makefile b/lib/VMCore/Makefile
index 6c2137eaddb0acea78b09ee2112eb9a9ecd9d90b..01dc08e85e5b22d8cf540237e5c092cbe6f7bdf7 100644 (file)
--- a/lib/VMCore/Makefile
+++ b/lib/VMCore/Makefile
@@ -19,10 +19,15 @@ GENFILE:=$(PROJ_SRC_ROOT)/include/llvm/Intrinsics.gen
 INTRINSICTD  := $(PROJ_SRC_ROOT)/include/llvm/Intrinsics.td
 INTRINSICTDS := $(wildcard $(PROJ_SRC_ROOT)/include/llvm/Intrinsics*.td)
 
-$(GENFILE): $(INTRINSICTDS) $(TBLGEN)
-       $(Echo) Building Intrinsics.gen from Intrinsics.td
+$(ObjDir)/Intrinsics.gen.tmp: $(ObjDir)/.dir $(INTRINSICTDS) $(TBLGEN)
+       $(Echo) Building Intrinsics.gen.tmp from Intrinsics.td
        $(Verb) $(TableGen) $(INTRINSICTD) -o $@ -gen-intrinsic
 
+$(GENFILE): $(ObjDir)/Intrinsics.gen.tmp
+       $(Verb) $(CMP) -s $@ $< || ( $(CP) $< $@ && \
+         $(EchoCmd) Updated Intrinsics.gen because Intrinsics.gen.tmp \
+           changed significantly. )
+
 install-local:: $(GENFILE)
        $(Echo) Installing $(PROJ_includedir)/llvm/Intrinsics.gen
        $(Verb) $(DataInstall) $(GENFILE) $(PROJ_includedir)/llvm/Intrinsics.gen