passes.c (ipa_write_summaries): Only modify statements if body is in memory.

	* passes.c (ipa_write_summaries): Only modify statements if body
	is in memory.
	* cgraphunit.c (ipa_passes): Also produce intermeidate code when
	incrementally linking.
	(ipa_passes): Likewise.
	* lto-cgraph.c (lto_output_node): When incrementally linking do not
	pass down resolution info.
	* common.opt (flag_incremental_link): Update info.
	* gcc.c (plugin specs): Turn flinker-output=* to
	-plugin-opt=-linker-output-known
	* toplev.c (compile_file): Also cut compilation when doing incremental
	link.
	* flag-types. (enum lto_partition_model): Add
	LTO_LINKER_OUTPUT_NOLTOREL.
	(invoke.texi): Add -flinker-output docs.
	* ipa.c (symbol_table::remove_unreachable_nodes): Handle LTO incremental
	link same way as WPA; do not stream in dead initializers.

	* dwarf2out.c (dwarf2out_die_ref_for_decl,
	darf2out_register_external_decl): Support incremental link.

	* lang.opt (lto_linker_output): Add nolto-rel.
	* lto-lang.c (lto_post_options): Handle LTO_LINKER_OUTPUT_REL
	and LTO_LINKER_OUTPUT_NOLTOREL.
	(lto_init): Generate lto when doing incremental link.
	* lto.c (lto_precess_name): Add lto1-inclink.

	* testsuite/g++.dg/lto/20081109-1_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20081118_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20081119-1_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20081120-1_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20081120-2_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20081123_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20081204-1_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20081219_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20090302_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20090313_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20091002-2_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20091002-3_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20091026-1_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20100724-1_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20101010-4_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20101015-2_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/20110311-1_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/pr45621_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/pr48042_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/pr48354-1_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/pr54625-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/pr54625-2_0.c: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/lto/pr68811_0.C: Add -flinker-output=nolto-rel.
	* testsuite/g++.dg/torture/pr43760.C: New test. Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20081120-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20081120-2_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20081126_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20081204-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20081204-2_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20081212-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20081224_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20090116_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20090126-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20090126-2_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20090206-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20090219_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20091013-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20091014-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20091015-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20091016-1_0.c: Add -flinker-output=nolto-rel.
	* testsuite/gcc.dg/lto/20091020-1_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/20091020-2_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/20091027-1_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/20100426_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/20100430-1_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/20100603-1_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/20100603-2_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/20100603-3_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/20111213-1_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/pr45736_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/pr52634_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/pr54702_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/pr59323-2_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/pr59323_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/pr60820_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/pr81406_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gcc.dg/lto/pr83388_0.c: Add -flinker-output-nolto-rel.
	* testsuite/gfortran.dg/lto/20091016-1_0.f90: Add -flinker-output-nolto-rel.
	* testsuite/gfortran.dg/lto/20091028-1_0.f90: Add -flinker-output-nolto-rel.
	* testsuite/gfortran.dg/lto/20091028-2_0.f90: Add -flinker-output-nolto-rel.
	* testsuite/gfortran.dg/lto/pr46911_0.f: Add -flinker-output-nolto-rel.
	* testsuite/gfortran.dg/lto/pr47839_0.f90: Add -flinker-output-nolto-rel.

From-SVN: r260963

4 files changed, 36 insertions, 3 deletions

diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index cd976fa..5e1e0a9 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,11 @@
+2018-05-30  Jan Hubicka  <hubicka@ucw.cz>
+
+	* lang.opt (lto_linker_output): Add nolto-rel.
+	* lto-lang.c (lto_post_options): Handle LTO_LINKER_OUTPUT_REL
+	and LTO_LINKER_OUTPUT_NOLTOREL.
+	(lto_init): Generate lto when doing incremental link.
+	* lto.c (lto_precess_name): Add lto1-inclink.
+
 2018-05-18  Jan Hubicka  <jh@suse.cz>
 
 	PR lto/85583
diff --git a/gcc/lto/lang.opt b/gcc/lto/lang.opt
index 0a408d3..1d280a8 100644
--- a/gcc/lto/lang.opt
+++ b/gcc/lto/lang.opt
@@ -34,6 +34,9 @@ EnumValue
 Enum(lto_linker_output) String(rel) Value(LTO_LINKER_OUTPUT_REL)
 
 EnumValue
+Enum(lto_linker_output) String(nolto-rel) Value(LTO_LINKER_OUTPUT_NOLTOREL)
+
+EnumValue
 Enum(lto_linker_output) String(dyn) Value(LTO_LINKER_OUTPUT_DYN)
 
 EnumValue
diff --git a/gcc/lto/lto-lang.c b/gcc/lto/lto-lang.c
index a310d69..1a70f4f 100644
--- a/gcc/lto/lto-lang.c
+++ b/gcc/lto/lto-lang.c
@@ -879,8 +879,28 @@ lto_post_options (const char **pfilename ATTRIBUTE_UNUSED)
   switch (flag_lto_linker_output)
     {
     case LTO_LINKER_OUTPUT_REL: /* .o: incremental link producing LTO IL  */
+      /* Configure compiler same way as normal frontend would do with -flto:
+	 this way we read the trees (declarations & types), symbol table,
+	 optimization summaries and link them. Subsequently we output new LTO
+	 file.  */
+      flag_lto = "";
+      flag_incremental_link = INCREMENTAL_LINK_LTO;
       flag_whole_program = 0;
-      flag_incremental_link = 1;
+      flag_wpa = 0;
+      flag_generate_lto = 1;
+      /* It would be cool to produce .o file directly, but our current
+	 simple objects does not contain the lto symbol markers.  Go the slow
+	 way through the asm file.  */
+      lang_hooks.lto.begin_section = lhd_begin_section;
+      lang_hooks.lto.append_data = lhd_append_data;
+      lang_hooks.lto.end_section = lhd_end_section;
+      if (flag_ltrans)
+	error ("-flinker-output=rel and -fltrans are mutually exclussive");
+      break;
+
+    case LTO_LINKER_OUTPUT_NOLTOREL: /* .o: incremental link producing asm  */
+      flag_whole_program = 0;
+      flag_incremental_link = INCREMENTAL_LINK_NOLTO;
       break;
 
     case LTO_LINKER_OUTPUT_DYN: /* .so: PID library */
@@ -1269,7 +1289,8 @@ lto_init (void)
   in_lto_p = true;
 
   /* We need to generate LTO if running in WPA mode.  */
-  flag_generate_lto = (flag_wpa != NULL);
+  flag_generate_lto = (flag_incremental_link == INCREMENTAL_LINK_LTO
+		       || flag_wpa != NULL);
 
   /* Create the basic integer types.  */
   build_common_tree_nodes (flag_signed_char);
diff --git a/gcc/lto/lto.c b/gcc/lto/lto.c
index d2ccaf6..86f3fe4 100644
--- a/gcc/lto/lto.c
+++ b/gcc/lto/lto.c
@@ -3257,7 +3257,8 @@ static void
 lto_process_name (void)
 {
   if (flag_lto)
-    setproctitle ("lto1-lto");
+    setproctitle (flag_incremental_link == INCREMENTAL_LINK_LTO
+		  ? "lto1-inclink" : "lto1-lto");
   if (flag_wpa)
     setproctitle ("lto1-wpa");
   if (flag_ltrans)