[Patch 7/17] Delete TARGET_FLT_EVAL_METHOD and poison it.

gcc/

	* config/s390/s390.h (TARGET_FLT_EVAL_METHOD): Delete.
	* config/m68k/m68k.h (TARGET_FLT_EVAL_METHOD): Delete.
	* config/i386/i386.h (TARGET_FLT_EVAL_METHOD): Delete.
	* defaults.h (TARGET_FLT_EVAL_METHOD): Delete.
	* doc/tm.texi.in (TARGET_FLT_EVAL_METHOD): Delete.
	* doc/tm.texi: Regenerate.
	* system.h (TARGET_FLT_EVAL_METHOD): Poison.

From-SVN: r242777

8 files changed, 11 insertions, 39 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 66045fb..963f022 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,15 @@
 2016-11-23  James Greenhalgh  <james.greenhalgh@arm.com>
 
+	* config/s390/s390.h (TARGET_FLT_EVAL_METHOD): Delete.
+	* config/m68k/m68k.h (TARGET_FLT_EVAL_METHOD): Delete.
+	* config/i386/i386.h (TARGET_FLT_EVAL_METHOD): Delete.
+	* defaults.h (TARGET_FLT_EVAL_METHOD): Delete.
+	* doc/tm.texi.in (TARGET_FLT_EVAL_METHOD): Delete.
+	* doc/tm.texi: Regenerate.
+	* system.h (TARGET_FLT_EVAL_METHOD): Poison.
+
+2016-11-23  James Greenhalgh  <james.greenhalgh@arm.com>
+
 	* toplev.c (init_excess_precision): Delete most logic.
 	* tree.c (excess_precision_type): Rewrite to use
 	TARGET_EXCESS_PRECISION.
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 05d197c..83ffd4e 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -690,17 +690,6 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
   SUBTARGET_EXTRA_SPECS
 
 
-/* Set the value of FLT_EVAL_METHOD in float.h.  When using only the
-   FPU, assume that the fpcw is set to extended precision; when using
-   only SSE, rounding is correct; when using both SSE and the FPU,
-   the rounding precision is indeterminate, since either may be chosen
-   apparently at random.  */
-#define TARGET_FLT_EVAL_METHOD						\
-  (TARGET_80387								\
-   ? (TARGET_MIX_SSE_I387 ? -1						\
-      : (TARGET_SSE_MATH ? (TARGET_SSE2 ? 0 : -1) : 2))			\
-   : 0)
-
 /* Whether to allow x87 floating-point arithmetic on MODE (one of
    SFmode, DFmode and XFmode) in the current excess precision
    configuration.  */
diff --git a/gcc/config/m68k/m68k.h b/gcc/config/m68k/m68k.h
index 7b63bd2..6837d41 100644
--- a/gcc/config/m68k/m68k.h
+++ b/gcc/config/m68k/m68k.h
@@ -281,11 +281,6 @@ along with GCC; see the file COPYING3.  If not see
 #define LONG_DOUBLE_TYPE_SIZE			\
   ((TARGET_COLDFIRE || TARGET_FIDOA) ? 64 : 80)
 
-/* Set the value of FLT_EVAL_METHOD in float.h.  When using 68040 fp
-   instructions, we get proper intermediate rounding, otherwise we
-   get extended precision results.  */
-#define TARGET_FLT_EVAL_METHOD ((TARGET_68040 || ! TARGET_68881) ? 0 : 2)
-
 #define BITS_BIG_ENDIAN 1
 #define BYTES_BIG_ENDIAN 1
 #define WORDS_BIG_ENDIAN 1
diff --git a/gcc/config/s390/s390.h b/gcc/config/s390/s390.h
index 501c8e4..6be4d34 100644
--- a/gcc/config/s390/s390.h
+++ b/gcc/config/s390/s390.h
@@ -247,11 +247,6 @@ extern const char *s390_host_detect_local_cpu (int argc, const char **argv);
 #define S390_TDC_INFINITY (S390_TDC_POSITIVE_INFINITY \
 			  | S390_TDC_NEGATIVE_INFINITY )
 
-/* This is used by float.h to define the float_t and double_t data
-   types.  For historical reasons both are double on s390 what cannot
-   be changed anymore.  */
-#define TARGET_FLT_EVAL_METHOD 1
-
 /* Target machine storage layout.  */
 
 /* Everything is big-endian.  */
diff --git a/gcc/defaults.h b/gcc/defaults.h
index 9c40002..2536f76 100644
--- a/gcc/defaults.h
+++ b/gcc/defaults.h
@@ -942,9 +942,6 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define REG_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
 #endif
 
-#ifndef TARGET_FLT_EVAL_METHOD
-#define TARGET_FLT_EVAL_METHOD 0
-#endif
 
 #ifndef TARGET_DEC_EVAL_METHOD
 #define TARGET_DEC_EVAL_METHOD 2
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 144e63f..bd82039 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -1566,13 +1566,6 @@ uses this macro should also arrange to use @file{t-gnu-prefix} in
 the libgcc @file{config.host}.
 @end defmac
 
-@defmac TARGET_FLT_EVAL_METHOD
-A C expression for the value for @code{FLT_EVAL_METHOD} in @file{float.h},
-assuming, if applicable, that the floating-point control word is in its
-default state.  If you do not define this macro the value of
-@code{FLT_EVAL_METHOD} will be zero.
-@end defmac
-
 @defmac WIDEST_HARDWARE_FP_SIZE
 A C expression for the size in bits of the widest floating-point format
 supported by the hardware.  If you define this macro, you must specify a
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index 7d8dcff..95f5fd9 100644
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -1402,13 +1402,6 @@ uses this macro should also arrange to use @file{t-gnu-prefix} in
 the libgcc @file{config.host}.
 @end defmac
 
-@defmac TARGET_FLT_EVAL_METHOD
-A C expression for the value for @code{FLT_EVAL_METHOD} in @file{float.h},
-assuming, if applicable, that the floating-point control word is in its
-default state.  If you do not define this macro the value of
-@code{FLT_EVAL_METHOD} will be zero.
-@end defmac
-
 @defmac WIDEST_HARDWARE_FP_SIZE
 A C expression for the size in bits of the widest floating-point format
 supported by the hardware.  If you define this macro, you must specify a
diff --git a/gcc/system.h b/gcc/system.h
index 3e12017..cf86235 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -902,7 +902,7 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
 	ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE		\
 	LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE	\
 	CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P		\
-	STORE_BY_PIECES_P
+	STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD
 
 /* Target macros only used for code built for the target, that have
    moved to libgcc-tm.h or have never been present elsewhere.  */