gcc/

	* config/aarch64/aarch64.c, config/alpha/alpha.c,
	config/arm/arm.c, config/avr/avr.c, config/bfin/bfin.c,
	config/c6x/c6x.c, config/cr16/cr16.c, config/cris/cris.c,
	config/fr30/fr30.c, config/frv/frv.c, config/h8300/h8300.c,
	config/i386/i386.c, config/ia64/ia64.c, config/iq2000/iq2000.c,
	config/lm32/lm32.c, config/m32c/m32c.c, config/m32r/m32r.c,
	config/m68k/m68k.c, config/mcore/mcore.c, config/mep/mep.c,
	config/microblaze/microblaze.c, config/mips/mips.c,
	config/mmix/mmix.c, config/mn10300/mn10300.c,
	config/moxie/moxie.c, config/msp430/msp430.c,
	config/nds32/nds32.c, config/nios2/nios2.c, config/nvptx/nvptx.c,
	config/pa/pa.c, config/pdp11/pdp11.c, config/rl78/rl78.c,
	config/rs6000/rs6000.c, config/rx/rx.c, config/s390/s390.c,
	config/sh/sh.c, config/sparc/sparc.c, config/spu/spu.c,
	config/stormy16/stormy16.c, config/tilegx/tilegx.c,
	config/tilepro/tilepro.c, config/v850/v850.c, config/vax/vax.c,
	config/visium/visium.c, config/xtensa/xtensa.c: Add comment above
	target-def.h include.
	* config/ft32/ft32.c: Likewise.  Fix misapplied hunk.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@224980 138bc75d-0d04-0410-961f-82ee72b054a4

47 files changed, 70 insertions, 2 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ff6333cbae6..adf043fd8ec 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,27 @@
 2015-06-25  Richard Sandiford  <richard.sandiford@arm.com>
 
+	* config/aarch64/aarch64.c, config/alpha/alpha.c,
+	config/arm/arm.c, config/avr/avr.c, config/bfin/bfin.c,
+	config/c6x/c6x.c, config/cr16/cr16.c, config/cris/cris.c,
+	config/fr30/fr30.c, config/frv/frv.c, config/h8300/h8300.c,
+	config/i386/i386.c, config/ia64/ia64.c, config/iq2000/iq2000.c,
+	config/lm32/lm32.c, config/m32c/m32c.c, config/m32r/m32r.c,
+	config/m68k/m68k.c, config/mcore/mcore.c, config/mep/mep.c,
+	config/microblaze/microblaze.c, config/mips/mips.c,
+	config/mmix/mmix.c, config/mn10300/mn10300.c,
+	config/moxie/moxie.c, config/msp430/msp430.c,
+	config/nds32/nds32.c, config/nios2/nios2.c, config/nvptx/nvptx.c,
+	config/pa/pa.c, config/pdp11/pdp11.c, config/rl78/rl78.c,
+	config/rs6000/rs6000.c, config/rx/rx.c, config/s390/s390.c,
+	config/sh/sh.c, config/sparc/sparc.c, config/spu/spu.c,
+	config/stormy16/stormy16.c, config/tilegx/tilegx.c,
+	config/tilepro/tilepro.c, config/v850/v850.c, config/vax/vax.c,
+	config/visium/visium.c, config/xtensa/xtensa.c: Add comment above
+	target-def.h include.
+	* config/ft32/ft32.c: Likewise.  Fix misapplied hunk.
+
+2015-06-25  Richard Sandiford  <richard.sandiford@arm.com>
+
 	* Makefile.in (TARGET_DEF): Add target-insns.def.
 	(.PRECIOUS, simple_rtl_generated_h): Add insn-target-def.h.
 	(build/gentarget-def.o): New rule.
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index d9abff20eaa..d8e03b7b636 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -82,6 +82,7 @@
 #include "sched-int.h"
 #include "cortex-a57-fma-steering.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Defined for convenience.  */
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c
index c7e575a82f9..7f0c6a7b4fd 100644
--- a/gcc/config/alpha/alpha.c
+++ b/gcc/config/alpha/alpha.c
@@ -89,6 +89,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "builtins.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Specify which cpu to schedule for.  */
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 7f613f480d8..b5b9fc14755 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -85,6 +85,7 @@
 #include "sched-int.h"
 #include "tree.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Forward definitions of types.  */
diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c
index 7712b78cb14..c002377d19e 100644
--- a/gcc/config/avr/avr.c
+++ b/gcc/config/avr/avr.c
@@ -71,6 +71,7 @@
 #include "context.h"
 #include "tree-pass.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Maximal allowed offset for an address in the LD command */
diff --git a/gcc/config/bfin/bfin.c b/gcc/config/bfin/bfin.c
index 653a6704bb9..7ddc58ecf4d 100644
--- a/gcc/config/bfin/bfin.c
+++ b/gcc/config/bfin/bfin.c
@@ -76,6 +76,7 @@
 #include "dumpfile.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* A C structure for machine-specific, per-function data.
diff --git a/gcc/config/c6x/c6x.c b/gcc/config/c6x/c6x.c
index 20d0fe3ca5d..eb697020f12 100644
--- a/gcc/config/c6x/c6x.c
+++ b/gcc/config/c6x/c6x.c
@@ -79,6 +79,7 @@
 #include "gimple-expr.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Table of supported architecture variants.  */
diff --git a/gcc/config/cr16/cr16.c b/gcc/config/cr16/cr16.c
index 73653325efb..cb135456b4f 100644
--- a/gcc/config/cr16/cr16.c
+++ b/gcc/config/cr16/cr16.c
@@ -63,6 +63,7 @@
 #include "df.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Definitions.  */
diff --git a/gcc/config/cris/cris.c b/gcc/config/cris/cris.c
index a3bf00b3b23..d70e4d4a6b4 100644
--- a/gcc/config/cris/cris.c
+++ b/gcc/config/cris/cris.c
@@ -70,6 +70,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "cgraph.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Usable when we have an amount to add or subtract, and want the
diff --git a/gcc/config/fr30/fr30.c b/gcc/config/fr30/fr30.c
index c0da2bab521..2895598f215 100644
--- a/gcc/config/fr30/fr30.c
+++ b/gcc/config/fr30/fr30.c
@@ -64,6 +64,7 @@
 #include "target.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /*}}}*/
diff --git a/gcc/config/frv/frv.c b/gcc/config/frv/frv.c
index 3e66286f76b..23b5f3cb826 100644
--- a/gcc/config/frv/frv.c
+++ b/gcc/config/frv/frv.c
@@ -71,6 +71,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "ifcvt.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 #ifndef FRV_INLINE
diff --git a/gcc/config/ft32/ft32.c b/gcc/config/ft32/ft32.c
index f9ca2b5a1ec..4adf39b8b57 100644
--- a/gcc/config/ft32/ft32.c
+++ b/gcc/config/ft32/ft32.c
@@ -60,6 +60,9 @@
 #include "builtins.h"
 #include "emit-rtl.h"
 
+/* This file should be included last.  */
+#include "target-def.h"
+
 #include <stdint.h>
 
 #define LOSE_AND_RETURN(msgid, x)               \
@@ -370,8 +373,6 @@ ft32_init_machine_status (void)
   return ggc_cleared_alloc < machine_function > ();
 }
 
-#include "target-def.h"
-
 
 /* The TARGET_OPTION_OVERRIDE worker.
    All this curently does is set init_machine_status.  */
diff --git a/gcc/config/h8300/h8300.c b/gcc/config/h8300/h8300.c
index 343f955d309..0f11511918d 100644
--- a/gcc/config/h8300/h8300.c
+++ b/gcc/config/h8300/h8300.c
@@ -65,6 +65,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "df.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Classifies a h8300_src_operand or h8300_dst_operand.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 001de0534c4..0145c78b22d 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -100,6 +100,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "tree-chkp.h"
 #include "rtl-chkp.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 static rtx legitimize_dllimport_symbol (rtx, bool);
diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c
index e956144fccb..47b44691cd5 100644
--- a/gcc/config/ia64/ia64.c
+++ b/gcc/config/ia64/ia64.c
@@ -86,6 +86,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "dumpfile.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* This is used for communication between ASM_OUTPUT_LABEL and
diff --git a/gcc/config/iq2000/iq2000.c b/gcc/config/iq2000/iq2000.c
index df29089b825..0b8d0526b65 100644
--- a/gcc/config/iq2000/iq2000.c
+++ b/gcc/config/iq2000/iq2000.c
@@ -65,6 +65,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "df.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Enumeration for all of the relational tests, so that we can build
diff --git a/gcc/config/lm32/lm32.c b/gcc/config/lm32/lm32.c
index 0c4fc9a6bcf..a15bcfd281c 100644
--- a/gcc/config/lm32/lm32.c
+++ b/gcc/config/lm32/lm32.c
@@ -67,6 +67,7 @@
 #include "df.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 struct lm32_frame_info
diff --git a/gcc/config/m32c/m32c.c b/gcc/config/m32c/m32c.c
index b9e041e134d..2b9aae3ecd7 100644
--- a/gcc/config/m32c/m32c.c
+++ b/gcc/config/m32c/m32c.c
@@ -74,6 +74,7 @@
 #include "tm-constrs.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Prototypes */
diff --git a/gcc/config/m32r/m32r.c b/gcc/config/m32r/m32r.c
index 27c742e1d7b..cabf8fb9221 100644
--- a/gcc/config/m32r/m32r.c
+++ b/gcc/config/m32r/m32r.c
@@ -62,6 +62,7 @@
 #include "opts.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Array of valid operand punctuation characters.  */
diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c
index e1558ef9c96..cf67e7588a3 100644
--- a/gcc/config/m68k/m68k.c
+++ b/gcc/config/m68k/m68k.c
@@ -67,6 +67,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "builtins.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 enum reg_class regno_reg_class[] =
diff --git a/gcc/config/mcore/mcore.c b/gcc/config/mcore/mcore.c
index 2b284e22432..f25c0d16170 100644
--- a/gcc/config/mcore/mcore.c
+++ b/gcc/config/mcore/mcore.c
@@ -63,6 +63,7 @@
 #include "df.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* For dumping information about frame sizes.  */
diff --git a/gcc/config/mep/mep.c b/gcc/config/mep/mep.c
index dd92dadf0d6..9a568795de4 100644
--- a/gcc/config/mep/mep.c
+++ b/gcc/config/mep/mep.c
@@ -78,6 +78,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "builtins.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Structure of this file:
diff --git a/gcc/config/microblaze/microblaze.c b/gcc/config/microblaze/microblaze.c
index 2c0919df69d..4b96dd865f2 100644
--- a/gcc/config/microblaze/microblaze.c
+++ b/gcc/config/microblaze/microblaze.c
@@ -69,6 +69,7 @@
 #include "builtins.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 #define MICROBLAZE_VERSION_COMPARE(VA,VB) strcasecmp (VA, VB)
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index b3d16c69987..cc675ea8e8c 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -88,6 +88,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "builtins.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* True if X is an UNSPEC wrapper around a SYMBOL_REF or LABEL_REF.  */
diff --git a/gcc/config/mmix/mmix.c b/gcc/config/mmix/mmix.c
index 163c2e949e9..ee2da088a9d 100644
--- a/gcc/config/mmix/mmix.c
+++ b/gcc/config/mmix/mmix.c
@@ -60,6 +60,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "tm-constrs.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* First some local helper definitions.  */
diff --git a/gcc/config/mn10300/mn10300.c b/gcc/config/mn10300/mn10300.c
index 44d2da4bc6e..49bf7725e23 100644
--- a/gcc/config/mn10300/mn10300.c
+++ b/gcc/config/mn10300/mn10300.c
@@ -67,6 +67,7 @@
 #include "dumpfile.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* This is used in the am33_2.0-linux-gnu port, in which global symbol
diff --git a/gcc/config/moxie/moxie.c b/gcc/config/moxie/moxie.c
index 14ab63a2881..e79182901fa 100644
--- a/gcc/config/moxie/moxie.c
+++ b/gcc/config/moxie/moxie.c
@@ -66,6 +66,7 @@
 #include "df.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 #define LOSE_AND_RETURN(msgid, x)		\
diff --git a/gcc/config/msp430/msp430.c b/gcc/config/msp430/msp430.c
index 2a42c38d3fb..e83efb68152 100644
--- a/gcc/config/msp430/msp430.c
+++ b/gcc/config/msp430/msp430.c
@@ -70,6 +70,7 @@
 #include "opts.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 
diff --git a/gcc/config/nds32/nds32.c b/gcc/config/nds32/nds32.c
index c019872153a..b58e4bc50d6 100644
--- a/gcc/config/nds32/nds32.c
+++ b/gcc/config/nds32/nds32.c
@@ -67,6 +67,7 @@
 #include "langhooks.h"		/* For add_builtin_function().  */
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* ------------------------------------------------------------------------ */
diff --git a/gcc/config/nios2/nios2.c b/gcc/config/nios2/nios2.c
index 567c9215d70..0e9c40bf9ed 100644
--- a/gcc/config/nios2/nios2.c
+++ b/gcc/config/nios2/nios2.c
@@ -68,6 +68,7 @@
 #include "stor-layout.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Forward function declarations.  */
diff --git a/gcc/config/nvptx/nvptx.c b/gcc/config/nvptx/nvptx.c
index c69ddfc8775..43f197f17a1 100644
--- a/gcc/config/nvptx/nvptx.c
+++ b/gcc/config/nvptx/nvptx.c
@@ -61,6 +61,7 @@
 #include "df.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Record the function decls we've written, and the libfuncs and function
diff --git a/gcc/config/pa/pa.c b/gcc/config/pa/pa.c
index 25b1d364119..6cc3c2ae44e 100644
--- a/gcc/config/pa/pa.c
+++ b/gcc/config/pa/pa.c
@@ -69,6 +69,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "opts.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Return nonzero if there is a bypass for the output of 
diff --git a/gcc/config/pdp11/pdp11.c b/gcc/config/pdp11/pdp11.c
index 4788b505cf6..f0b1b8b84a6 100644
--- a/gcc/config/pdp11/pdp11.c
+++ b/gcc/config/pdp11/pdp11.c
@@ -61,6 +61,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "dbxout.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* this is the current value returned by the macro FIRST_PARM_OFFSET 
diff --git a/gcc/config/rl78/rl78.c b/gcc/config/rl78/rl78.c
index 8cf4974eecd..680e4dbcc47 100644
--- a/gcc/config/rl78/rl78.c
+++ b/gcc/config/rl78/rl78.c
@@ -74,6 +74,7 @@
 #include "builtins.h"
 #include "stringpool.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 static inline bool is_interrupt_func (const_tree decl);
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 73fb73141ae..ccfc0a8b4ce 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -100,6 +100,7 @@
 #include "gstab.h"  /* for N_SLINE */
 #endif
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 #ifndef TARGET_NO_PROTOTYPE
diff --git a/gcc/config/rx/rx.c b/gcc/config/rx/rx.c
index 5cadd3ae947..9d9182010a5 100644
--- a/gcc/config/rx/rx.c
+++ b/gcc/config/rx/rx.c
@@ -74,6 +74,7 @@
 #include "cgraph.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 static unsigned int rx_gp_base_regnum_val = INVALID_REGNUM;
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c
index 2f2c436a957..1de8d07a01a 100644
--- a/gcc/config/s390/s390.c
+++ b/gcc/config/s390/s390.c
@@ -87,6 +87,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "ipa-ref.h"
 #include "cgraph.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Define the specific costs for a given cpu.  */
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index 5c0c6a1c9ca..0139095cf53 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -87,6 +87,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "builtins.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 int code_for_indirect_jump_scratch = CODE_FOR_indirect_jump_scratch;
diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c
index 2163201cb01..2556eecc8ca 100644
--- a/gcc/config/sparc/sparc.c
+++ b/gcc/config/sparc/sparc.c
@@ -82,6 +82,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "builtins.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Processor costs */
diff --git a/gcc/config/spu/spu.c b/gcc/config/spu/spu.c
index d89c6cc1f6e..97690e3b34b 100644
--- a/gcc/config/spu/spu.c
+++ b/gcc/config/spu/spu.c
@@ -79,6 +79,7 @@
 #include "builtins.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Builtin types, data and prototypes. */
diff --git a/gcc/config/stormy16/stormy16.c b/gcc/config/stormy16/stormy16.c
index 761bc4e54b2..142498db47d 100644
--- a/gcc/config/stormy16/stormy16.c
+++ b/gcc/config/stormy16/stormy16.c
@@ -75,6 +75,7 @@
 #include "reload.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 static rtx emit_addhi3_postreload (rtx, rtx, rtx);
diff --git a/gcc/config/tilegx/tilegx.c b/gcc/config/tilegx/tilegx.c
index 86ad324aaeb..1f285e09139 100644
--- a/gcc/config/tilegx/tilegx.c
+++ b/gcc/config/tilegx/tilegx.c
@@ -76,6 +76,7 @@
 #include "diagnostic.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* SYMBOL_REF for GOT */
diff --git a/gcc/config/tilepro/tilepro.c b/gcc/config/tilepro/tilepro.c
index 81c93955223..92447391eba 100644
--- a/gcc/config/tilepro/tilepro.c
+++ b/gcc/config/tilepro/tilepro.c
@@ -77,6 +77,7 @@
 #include "diagnostic.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* SYMBOL_REF for GOT */
diff --git a/gcc/config/v850/v850.c b/gcc/config/v850/v850.c
index 851986f243f..96811654e81 100644
--- a/gcc/config/v850/v850.c
+++ b/gcc/config/v850/v850.c
@@ -61,6 +61,7 @@
 #include "opts.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 #ifndef streq
diff --git a/gcc/config/vax/vax.c b/gcc/config/vax/vax.c
index 8880d6493fa..08706f74791 100644
--- a/gcc/config/vax/vax.c
+++ b/gcc/config/vax/vax.c
@@ -63,6 +63,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "target.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 static void vax_option_override (void);
diff --git a/gcc/config/visium/visium.c b/gcc/config/visium/visium.c
index fcf435988cd..135f74d41ef 100644
--- a/gcc/config/visium/visium.c
+++ b/gcc/config/visium/visium.c
@@ -67,6 +67,7 @@
 #include "context.h"
 #include "builtins.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Machine specific function data. */
diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index 35fc423f3e0..cacb79eb17c 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -77,6 +77,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "hw-doloop.h"
 #include "rtl-iter.h"
 
+/* This file should be included last.  */
 #include "target-def.h"
 
 /* Enumeration for all of the relational tests, so that we can build