rs6000: Remove -mfloat-gprs

This deletes -mfloat-gprs and the variables that go with it.


	* config/rs6000/rs6000.c: Remove everything related to -mfloat-gprs.
	* config/rs6000/rs6000.opt: Ditto.
	* config/rs6000/t-rtems: Ditto.

From-SVN: r248976

3 files changed, 3 insertions, 38 deletions

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index f1819b3..587ec18 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -2841,9 +2841,6 @@ rs6000_debug_reg_global (void)
   if (rs6000_darwin64_abi)
     fprintf (stderr, DEBUG_FMT_S, "darwin64_abi", "true");
 
-  if (rs6000_float_gprs)
-    fprintf (stderr, DEBUG_FMT_S, "float_gprs", "true");
-
   fprintf (stderr, DEBUG_FMT_S, "single_float",
 	   (TARGET_SINGLE_FLOAT ? "true" : "false"));
 
@@ -4242,12 +4239,6 @@ rs6000_option_override_internal (bool global_init_p)
 
     if (!global_options_set.x_rs6000_spe)
       rs6000_spe = spe_capable_cpu;
-
-    if (!global_options_set.x_rs6000_float_gprs)
-      rs6000_float_gprs =
-        (rs6000_cpu == PROCESSOR_PPC8540 ? 1
-         : rs6000_cpu == PROCESSOR_PPC8548 ? 2
-         : 0);
   }
 
   if (global_options_set.x_rs6000_spe_abi
@@ -4262,8 +4253,7 @@ rs6000_option_override_internal (bool global_init_p)
 
   if (main_target_opt != NULL
       && ((main_target_opt->x_rs6000_spe_abi != rs6000_spe_abi)
-          || (main_target_opt->x_rs6000_spe != rs6000_spe)
-          || (main_target_opt->x_rs6000_float_gprs != rs6000_float_gprs)))
+          || (main_target_opt->x_rs6000_spe != rs6000_spe)))
     error ("target attribute or pragma changes SPE ABI");
 
   if (rs6000_cpu == PROCESSOR_PPCE300C2 || rs6000_cpu == PROCESSOR_PPCE300C3
diff --git a/gcc/config/rs6000/rs6000.opt b/gcc/config/rs6000/rs6000.opt
index fdac5c7..c5c11c5 100644
--- a/gcc/config/rs6000/rs6000.opt
+++ b/gcc/config/rs6000/rs6000.opt
@@ -449,26 +449,6 @@ mwarn-altivec-long
 Target Var(rs6000_warn_altivec_long) Init(1) Save
 Warn about deprecated 'vector long ...' AltiVec type usage.
 
-mfloat-gprs=
-Target RejectNegative Joined Enum(rs6000_float_gprs) Var(rs6000_float_gprs) Save
--mfloat-gprs=	Select GPR floating point method.
-
-Enum
-Name(rs6000_float_gprs) Type(unsigned char)
-Valid arguments to -mfloat-gprs=:
-
-EnumValue
-Enum(rs6000_float_gprs) String(yes) Value(1)
-
-EnumValue
-Enum(rs6000_float_gprs) String(single) Value(1)
-
-EnumValue
-Enum(rs6000_float_gprs) String(double) Value(2)
-
-EnumValue
-Enum(rs6000_float_gprs) String(no) Value(0)
-
 mlong-double-
 Target RejectNegative Joined UInteger Var(rs6000_long_double_type_size) Save
 -mlong-double-<n>	Specify size of long double (64 or 128 bits).
diff --git a/gcc/config/rs6000/t-rtems b/gcc/config/rs6000/t-rtems
index 7c7637d..723c6a3 100644
--- a/gcc/config/rs6000/t-rtems
+++ b/gcc/config/rs6000/t-rtems
@@ -30,8 +30,8 @@ MULTILIB_DIRNAMES += m403 m505 m603e m604 m860 m7400 m8540 me6500
 MULTILIB_OPTIONS += m32
 MULTILIB_DIRNAMES += m32
 
-MULTILIB_OPTIONS += msoft-float/mfloat-gprs=double
-MULTILIB_DIRNAMES += nof gprsdouble
+MULTILIB_OPTIONS += msoft-float
+MULTILIB_DIRNAMES += nof
 
 MULTILIB_OPTIONS += mno-spe/mno-altivec
 MULTILIB_DIRNAMES += nospe noaltivec
@@ -56,10 +56,6 @@ MULTILIB_MATCHES	+= mcpu?750=
 # Map 8548 to 8540
 MULTILIB_MATCHES	+= mcpu?8540=mcpu?8548
 
-# Map -mcpu=8540 -mfloat-gprs=single to -mcpu=8540
-# (mfloat-gprs=single is implicit default)
-MULTILIB_MATCHES	+= mcpu?8540=mcpu?8540/mfloat-gprs?single
-
 # Enumeration of multilibs
 
 MULTILIB_REQUIRED += msoft-float
@@ -73,7 +69,6 @@ MULTILIB_REQUIRED += mcpu=7400
 MULTILIB_REQUIRED += mcpu=7400/msoft-float
 MULTILIB_REQUIRED += mcpu=8540
 MULTILIB_REQUIRED += mcpu=8540/msoft-float/mno-spe
-MULTILIB_REQUIRED += mcpu=8540/mfloat-gprs=double
 MULTILIB_REQUIRED += mcpu=860
 MULTILIB_REQUIRED += mcpu=e6500/m32
 MULTILIB_REQUIRED += mcpu=e6500/m32/msoft-float/mno-altivec