Hi,
The size of generated file like insn-emit.c is very huge
if we add lots of define_expand patten or define_insn patten.
It’s present easily when there are much more intrinsic interfaces
it costs much more time to create toolchain with compiling these files
:(
gcc/ChangeLog:
* genemit.c (main): Print 'split line'.
* Makefile.in (insn-emit.c): Define split count and file
---
gcc/Makefile.in | 10 ++++++
gcc/genemit.c | 86 +++++++++++++++++++++++++++----------------------
2 files changed, 58 insertions(+), 38 deletions(-)
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 2ba76656dbf..3306510a9a8 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -1253,6 +1253,13 @@ ANALYZER_OBJS = \
# We put the *-match.o and insn-*.o files first so that a parallel make
# will build them sooner, because they are large and otherwise tend to be
# the last objects to finish building.
+
+insn-generated-split-num = 15
+
+insn-emit-split-c = $(foreach o, $(shell seq 1 $(insn-generated-split-num)),
insn-emit$(o).c)
+insn-emit-split-obj = $(patsubst %.c,%.o, $(insn-emit-split-c))
+$(insn-emit-split-c): insn-emit.c
+
OBJS = \
gimple-match.o \
generic-match.o \
@@ -1260,6 +1267,7 @@ OBJS = \
insn-automata.o \
insn-dfatab.o \
insn-emit.o \
+ $(insn-emit-split-obj) \
insn-extract.o \
insn-latencytab.o \
insn-modes.o \
@@ -2367,6 +2375,8 @@ $(simple_generated_c:insn-%.c=s-%): s-%:
build/gen%$(build_exeext)
$(RUN_GEN) build/gen$*$(build_exeext) $(md_file) \
$(filter insn-conditions.md,$^) > tmp-$*.c
$(SHELL) $(srcdir)/../move-if-change tmp-$*.c insn-$*.c
+ -csplit insn-$*.c /i\ am\ split\ line/ -k -s
{$(insn-generated-split-num)} -f insn-$* -b "%d.c"
+ -( [ ! -s insn-$*0.c ] && for i in `seq 1 $(insn-generated-split-num)`;
do touch insn-$*$$i.c; done && echo "" > insn-$*.c)
$(STAMP) s-$*
# gencheck doesn't read the machine description, and the file produced
diff --git a/gcc/genemit.c b/gcc/genemit.c
index 84d07d388ee..fd60cdeeb96 100644
--- a/gcc/genemit.c
+++ b/gcc/genemit.c
@@ -847,6 +847,45 @@ handle_overloaded_gen (overloaded_name *oname)
}
}
+#define printf_include() \
+ printf ("/* Generated automatically by the program `genemit'\n\
+from the machine description file `md'. */\n\n"); \
+ printf ("#define IN_TARGET_CODE 1\n"); \
+ printf ("#include \"config.h\"\n"); \
+ printf ("#include \"system.h\"\n"); \
+ printf ("#include \"coretypes.h\"\n"); \
+ printf ("#include \"backend.h\"\n"); \
+ printf ("#include \"predict.h\"\n"); \
+ printf ("#include \"tree.h\"\n"); \
+ printf ("#include \"rtl.h\"\n"); \
+ printf ("#include \"alias.h\"\n"); \
+ printf ("#include \"varasm.h\"\n"); \
+ printf ("#include \"stor-layout.h\"\n"); \
+ printf ("#include \"calls.h\"\n"); \
+ printf ("#include \"memmodel.h\"\n"); \
+ printf ("#include \"tm_p.h\"\n"); \
+ printf ("#include \"flags.h\"\n"); \
+ printf ("#include \"insn-config.h\"\n"); \
+ printf ("#include \"expmed.h\"\n"); \
+ printf ("#include \"dojump.h\"\n"); \
+ printf ("#include \"explow.h\"\n"); \
+ printf ("#include \"emit-rtl.h\"\n"); \
+ printf ("#include \"stmt.h\"\n"); \
+ printf ("#include \"expr.h\"\n"); \
+ printf ("#include \"insn-codes.h\"\n"); \
+ printf ("#include \"optabs.h\"\n"); \
+ printf ("#include \"dfp.h\"\n"); \
+ printf ("#include \"output.h\"\n"); \
+ printf ("#include \"recog.h\"\n"); \
+ printf ("#include \"df.h\"\n"); \
+ printf ("#include \"resource.h\"\n"); \
+ printf ("#include \"reload.h\"\n"); \
+ printf ("#include \"diagnostic-core.h\"\n"); \
+ printf ("#include \"regs.h\"\n"); \
+ printf ("#include \"tm-constrs.h\"\n"); \
+ printf ("#include \"ggc.h\"\n"); \
+ printf ("#include \"target.h\"\n\n"); \
+
int
main (int argc, const char **argv)
{
@@ -862,49 +901,19 @@ main (int argc, const char **argv)
/* Assign sequential codes to all entries in the machine description
in parallel with the tables in insn-output.c. */
- printf ("/* Generated automatically by the program `genemit'\n\
-from the machine description file `md'. */\n\n");
-
- printf ("#define IN_TARGET_CODE 1\n");
- printf ("#include \"config.h\"\n");
- printf ("#include \"system.h\"\n");
- printf ("#include \"coretypes.h\"\n");
- printf ("#include \"backend.h\"\n");
- printf ("#include \"predict.h\"\n");
- printf ("#include \"tree.h\"\n");
- printf ("#include \"rtl.h\"\n");
- printf ("#include \"alias.h\"\n");
- printf ("#include \"varasm.h\"\n");
- printf ("#include \"stor-layout.h\"\n");
- printf ("#include \"calls.h\"\n");
- printf ("#include \"memmodel.h\"\n");
- printf ("#include \"tm_p.h\"\n");
- printf ("#include \"flags.h\"\n");
- printf ("#include \"insn-config.h\"\n");
- printf ("#include \"expmed.h\"\n");
- printf ("#include \"dojump.h\"\n");
- printf ("#include \"explow.h\"\n");
- printf ("#include \"emit-rtl.h\"\n");
- printf ("#include \"stmt.h\"\n");
- printf ("#include \"expr.h\"\n");
- printf ("#include \"insn-codes.h\"\n");
- printf ("#include \"optabs.h\"\n");
- printf ("#include \"dfp.h\"\n");
- printf ("#include \"output.h\"\n");
- printf ("#include \"recog.h\"\n");
- printf ("#include \"df.h\"\n");
- printf ("#include \"resource.h\"\n");
- printf ("#include \"reload.h\"\n");
- printf ("#include \"diagnostic-core.h\"\n");
- printf ("#include \"regs.h\"\n");
- printf ("#include \"tm-constrs.h\"\n");
- printf ("#include \"ggc.h\"\n");
- printf ("#include \"target.h\"\n\n");
+ long long read_count = 0;
/* Read the machine description. */
md_rtx_info info;
while (read_md_rtx (&info))
+ {
+ if (!(read_count++ % 10000))
+ {
+ printf ("/* i am split line %d :) */\n\n", read_count);
+ printf_include()
+ }
+
switch (GET_CODE (info.def))
{
case DEFINE_INSN:
@@ -929,6 +938,7 @@ from the machine description file `md'. */\n\n");
default:
break;
}
+ }
/* Write out the routines to add CLOBBERs to a pattern and say whether they
clobber a hard reg. */
--
2.24.3 (Apple Git-128)
Jojo
