Remove a few dyngen and dyngen related code

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5914 c046a42c-6fe2-441c-8c8c-71466251a162

Makefile

@@ -36,7 +36,7 @@ all: $(TOOLS) $(DOCS) recurse-all
 
 SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
 
-subdir-%: dyngen$(EXESUF)
+subdir-%:
 	$(MAKE) -C $(subst subdir-,,$@) all
 
 $(filter %-softmmu,$(SUBDIR_RULES)): libqemu_common.a
@@ -195,15 +195,10 @@ qemu-img$(EXESUF): qemu-img.o qemu-tool.o osdep.o $(BLOCK_OBJS)
 qemu-nbd$(EXESUF):  qemu-nbd.o qemu-tool.o osdep.o $(BLOCK_OBJS)
 	$(CC) $(LDFLAGS) -o $@ $^ -lz $(LIBS)
 
-# dyngen host tool
-dyngen$(EXESUF): dyngen.c
-	$(HOST_CC) $(CFLAGS) $(CPPFLAGS) -o $@ $^
-
 clean:
 # avoid old build problems by removing potentially incorrect old files
 	rm -f config.mak config.h op-i386.h opc-i386.h gen-op-i386.h op-arm.h opc-arm.h gen-op-arm.h
-	rm -f *.o *.d *.a $(TOOLS) dyngen$(EXESUF) TAGS cscope.* *.pod *~ */*~
+	rm -f *.o *.d *.a $(TOOLS) TAGS cscope.* *.pod *~ */*~
-	rm -rf dyngen.dSYM
 	rm -f slirp/*.o slirp/*.d audio/*.o audio/*.d
 	$(MAKE) -C tests clean
 	for d in $(TARGET_DIRS); do \

Makefile.target

@@ -27,7 +27,6 @@ VPATH=$(SRC_PATH):$(TARGET_PATH):$(SRC_PATH)/hw
 CPPFLAGS=-I. -I.. -I$(TARGET_PATH) -I$(SRC_PATH) -MMD -MT $@ -MP -DNEED_CPU_H
 #CFLAGS+=-Werror
 LIBS=
-DYNGEN=../dyngen$(EXESUF)
 # user emulator name
 ifndef TARGET_ARCH2
 TARGET_ARCH2=$(TARGET_ARCH)
@@ -186,10 +185,6 @@ all: $(PROGS)
 # cpu emulator library
 LIBOBJS=exec.o kqemu.o translate-all.o cpu-exec.o\
         translate.o host-utils.o
-ifdef CONFIG_DYNGEN_OP
-exec.o: dyngen-opc.h
-LIBOBJS+=op.o
-endif
 # TCG code generator
 LIBOBJS+= tcg/tcg.o tcg/tcg-dyngen.o tcg/tcg-runtime.o
 CPPFLAGS+=-I$(SRC_PATH)/tcg -I$(SRC_PATH)/tcg/$(ARCH)
@@ -261,35 +256,15 @@ endif
 
 # libqemu
 
-ifdef CONFIG_DYNGEN_OP
-OPC_H = gen-op.h dyngen-opc.h op.h
-endif
-
 libqemu.a: $(LIBOBJS)
 	rm -f $@
 	$(AR) rcs $@ $(LIBOBJS)
 
-translate.o: translate.c cpu.h $(OPC_H)
+translate.o: translate.c cpu.h
 
-translate-all.o: translate-all.c cpu.h $(OPC_H)
+translate-all.o: translate-all.c cpu.h
 
-tcg/tcg.o: cpu.h $(OPC_H)
+tcg/tcg.o: cpu.h
-
-tcg/tcg-dyngen.o: $(OPC_H)
-
-tcg/tcg-runtime.o: $(OPC_H)
-
-op.h: op.o $(DYNGEN)
-	$(DYNGEN) -o $@ $<
-
-dyngen-opc.h: op.o $(DYNGEN)
-	$(DYNGEN) -c -o $@ $<
-
-gen-op.h: op.o $(DYNGEN)
-	$(DYNGEN) -g -o $@ $<
-
-op.o: op.c
-	$(CC) $(OP_CFLAGS) $(CPPFLAGS) $(I386_CFLAGS) -c -o $@ $<
 
 machine.o: machine.c
 	$(CC) $(OP_CFLAGS) $(CPPFLAGS) -c -o $@ $<
@@ -299,7 +274,7 @@ machine.o: machine.c
 op_helper.o: op_helper.c
 	$(CC) $(HELPER_CFLAGS) $(CPPFLAGS) $(CFLAGS) $(I386_CFLAGS) -c -o $@ $<
 
-cpu-exec.o: cpu-exec.c $(OPC_H)
+cpu-exec.o: cpu-exec.c
 	$(CC) $(HELPER_CFLAGS) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<
 
 #########################################################
@@ -807,7 +782,7 @@ endif
 	$(CC) $(CPPFLAGS) -c -o $@ $<
 
 clean:
-	rm -f *.o *.a *~ $(PROGS) gen-op.h dyngen-opc.h op.h nwfpe/*.o fpu/*.o
+	rm -f *.o *.a *~ $(PROGS) nwfpe/*.o fpu/*.o
 	rm -f *.d */*.d tcg/*.o
 
 install: all

tcg/README

@@ -60,9 +60,8 @@ add_i32 t0, t1, t2  (t0 <- t1 + t2)
 
 - Basic blocks end after branches (e.g. brcond_i32 instruction),
   goto_tb and exit_tb instructions.
-- Basic blocks end before legacy dyngen operations.
+- Basic blocks start after the end of a previous basic block, or at a
-- Basic blocks start after the end of a previous basic block, at a
+  set_label instruction.
-  set_label instruction or after a legacy dyngen operation.
 
 After the end of a basic block, the content of temporaries is
 destroyed, but local temporaries and globals are preserved.
@@ -423,18 +422,7 @@ register.
   target, functions must be able to return 2 values in registers for
   64 bit return type.
 
-5) Migration from dyngen to TCG
+5) Recommended coding rules for best performance
-
-TCG is backward compatible with QEMU "dyngen" operations. It means
-that TCG instructions can be freely mixed with dyngen operations. It
-is expected that QEMU targets will be progressively fully converted to
-TCG. Once a target is fully converted to TCG, it will be possible
-to apply more optimizations because more registers will be free for
-the generated code.
-
-The exception model is the same as the dyngen one.
-
-6) Recommended coding rules for best performance
 
 - Use globals to represent the parts of the QEMU CPU state which are
   often modified, e.g. the integer registers and the condition
@@ -442,8 +430,7 @@ The exception model is the same as the dyngen one.
 
 - Avoid globals stored in fixed registers. They must be used only to
   store the pointer to the CPU state and possibly to store a pointer
-  to a register window. The other uses are to ensure backward
+  to a register window.
-  compatibility with dyngen during the porting a new target to TCG.
 
 - Use temporaries. Use local temporaries only when really needed,
   e.g. when you need to use a value after a jump. Local temporaries