diff options
| -rw-r--r-- | Makefile.rules | 46 |
1 files changed, 8 insertions, 38 deletions
diff --git a/Makefile.rules b/Makefile.rules index 8efd3e31db..f509058f8d 100644 --- a/Makefile.rules +++ b/Makefile.rules @@ -956,85 +956,55 @@ INCTMPFiles := $(INCFiles:%=$(ObjDir)/%.tmp) # All of these files depend on tblgen and the .td files. $(INCTMPFiles) : $(TBLGEN) $(TDFiles) +# INCFiles rule: All of the tblgen generated files are emitted to +# $(ObjDir)/%.inc.tmp, instead of emitting them directly to %.inc. This allows +# us to only "touch" the real file if the contents of it change. IOW, if +# tblgen is modified, all of the .inc.tmp files are regereated, but no +# dependencies of the .inc files are, unless the contents of the .inc file +# changes. +$(INCFiles) : %.inc : $(ObjDir)/%.inc.tmp + $(Verb) cmp -s $@ $< || cp $< $@ $(TARGET:%=$(ObjDir)/%GenRegisterNames.inc.tmp): \ $(ObjDir)/%GenRegisterNames.inc.tmp : %.td $(ObjDir)/.dir $(Echo) "Building $(<F) register names with tblgen" $(Verb) $(TableGen) -gen-register-enums -o $@ $< -$(TARGET:%=%GenRegisterNames.inc): \ -%GenRegisterNames.inc : $(ObjDir)/%GenRegisterNames.inc.tmp - $(Verb) cmp -s $@ $< || cp $< $@ - - $(TARGET:%=$(ObjDir)/%GenRegisterInfo.h.inc.tmp): \ $(ObjDir)/%GenRegisterInfo.h.inc.tmp : %.td $(ObjDir)/.dir $(Echo) "Building $(<F) register information header with tblgen" $(Verb) $(TableGen) -gen-register-desc-header -o $@ $< -$(TARGET:%=%GenRegisterInfo.h.inc): \ -%GenRegisterInfo.h.inc : $(ObjDir)/%GenRegisterInfo.h.inc.tmp - $(Verb) cmp -s $@ $< || cp $< $@ - - $(TARGET:%=$(ObjDir)/%GenRegisterInfo.inc.tmp): \ $(ObjDir)/%GenRegisterInfo.inc.tmp : %.td $(ObjDir)/.dir $(Echo) "Building $(<F) register info implementation with tblgen" $(Verb) $(TableGen) -gen-register-desc -o $@ $< -$(TARGET:%=%GenRegisterInfo.inc): \ -%GenRegisterInfo.inc : $(ObjDir)/%GenRegisterInfo.inc.tmp - $(Verb) cmp -s $@ $< || cp $< $@ - - $(TARGET:%=$(ObjDir)/%GenInstrNames.inc.tmp): \ $(ObjDir)/%GenInstrNames.inc.tmp : %.td $(ObjDir)/.dir $(Echo) "Building $(<F) instruction names with tblgen" $(Verb) $(TableGen) -gen-instr-enums -o $@ $< -$(TARGET:%=%GenInstrNames.inc): \ -%GenInstrNames.inc : $(ObjDir)/%GenInstrNames.inc.tmp - $(Verb) cmp -s $@ $< || cp $< $@ - - $(TARGET:%=$(ObjDir)/%GenInstrInfo.inc.tmp): \ $(ObjDir)/%GenInstrInfo.inc.tmp : %.td $(ObjDir)/.dir $(Echo) "Building $(<F) instruction information with tblgen" $(Verb) $(TableGen) -gen-instr-desc -o $@ $< -$(TARGET:%=%GenInstrInfo.inc): \ -%GenInstrInfo.inc : $(ObjDir)/%GenInstrInfo.inc.tmp - $(Verb) cmp -s $@ $< || cp $< $@ - - $(TARGET:%=$(ObjDir)/%GenAsmWriter.inc.tmp): \ $(ObjDir)/%GenAsmWriter.inc.tmp : %.td $(ObjDir)/.dir $(Echo) "Building $(<F) assembly writer with tblgen" $(Verb) $(TableGen) -gen-asm-writer -o $@ $< -$(TARGET:%=%GenAsmWriter.inc): \ -%GenAsmWriter.inc : $(ObjDir)/%GenAsmWriter.inc.tmp - $(Verb) cmp -s $@ $< || cp $< $@ - $(TARGET:%=$(ObjDir)/%GenAsmWriter1.inc.tmp): \ $(ObjDir)/%GenAsmWriter1.inc.tmp : %.td $(ObjDir)/.dir $(Echo) "Building $(<F) assembly writer #1 with tblgen" $(Verb) $(TableGen) -gen-asm-writer -asmwriternum=1 -o $@ $< -$(TARGET:%=%GenAsmWriter1.inc): \ -%GenAsmWriter1.inc : $(ObjDir)/%GenAsmWriter1.inc.tmp - $(Verb) cmp -s $@ $< || cp $< $@ - - $(TARGET:%=$(ObjDir)/%GenCodeEmitter.inc.tmp): \ $(ObjDir)/%GenCodeEmitter.inc.tmp: %.td $(ObjDir)/.dir $(Echo) "Building $(<F) code emitter with tblgen" $(Verb) $(TableGen) -gen-emitter -o $@ $< -$(TARGET:%=%GenCodeEmitter.inc): \ -%GenCodeEmitter.inc : $(ObjDir)/%GenCodeEmitter.inc.tmp - $(Verb) cmp -s $@ $< || cp $< $@ - clean-local:: -$(Verb) $(RM) -f $(INCFiles) |