[llvm-commits] CVS: llvm/lib/VMCore/Makefile

[Chris Lattner]

Changes in directory llvm/lib/VMCore:

Makefile updated: 1.16 -> 1.17
---
Log message:

Fix PR835: http://llvm.org/PR835  so that touching tblgen in a way that doesn't affect intrinsic 
generation does not rebuild files that just use intrinsic info.


---
Diffs of the changes:  (+5 -2)

 Makefile |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)


Index: llvm/lib/VMCore/Makefile
diff -u llvm/lib/VMCore/Makefile:1.16 llvm/lib/VMCore/Makefile:1.17
--- llvm/lib/VMCore/Makefile:1.16	Wed May 31 20:30:26 2006
+++ llvm/lib/VMCore/Makefile	Thu Jul 20 11:44:21 2006
@@ -19,10 +19,13 @@
 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: $(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) $< $@
+
 install-local:: $(GENFILE)
 	$(Echo) Installing $(PROJ_includedir)/llvm/Intrinsics.gen
 	$(Verb) $(DataInstall) $(GENFILE) $(PROJ_includedir)/llvm/Intrinsics.gen