Remove -fshort-double

	PR target/60410
	* tree.c (build_common_tree_nodes): Remove short_double argument.
	All callers changed.
	* tree.h (build_common_tree_nodes): Adjust declaration.
	* doc/invoke.texi (-fshort-double): Remove documentation.
	* config/mips/t-img-elf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES,
	MULTILIB_EXCEPTIONS): Remove -fshort-double variant.
	* lto-wrapper.c (merge_and_complain, append_compiler_options,
	append_linker_options): Don't handle OPT_fshort_double.
	
c-family/
	PR target/60410
	* c.opt (fshort-double): Remove.

testsuite/
	PR target/60410
	* gcc.dg/lto/pr55113_0.c: Remove test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233218 138bc75d-0d04-0410-961f-82ee72b054a4

16 files changed, 34 insertions, 54 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index eef961c8963..e5e85f3ce94 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -11,6 +11,16 @@
 
 2016-02-08  Bernd Schmidt  <bschmidt@redhat.com>
 
+	PR target/60410
+	* tree.c (build_common_tree_nodes): Remove short_double argument.
+	All callers changed.
+	* tree.h (build_common_tree_nodes): Adjust declaration.
+	* doc/invoke.texi (-fshort-double): Remove documentation.
+	* config/mips/t-img-elf (MULTILIB_OPTIONS, MULTILIB_DIRNAMES,
+	MULTILIB_EXCEPTIONS): Remove -fshort-double variant.
+	* lto-wrapper.c (merge_and_complain, append_compiler_options)
+	(append_linker_options): Don't handle OPT_fshort_double.
+
 	PR rtl-optimization/68730
 	* lra-remat.c (insn_to_cand_activation): New static variable.
 	(lra_remat): Allocate and free it.
diff --git a/gcc/ada/gcc-interface/misc.c b/gcc/ada/gcc-interface/misc.c
index 992ac0a3aa2..75e467bf742 100644
--- a/gcc/ada/gcc-interface/misc.c
+++ b/gcc/ada/gcc-interface/misc.c
@@ -355,7 +355,7 @@ gnat_init (void)
 {
   /* Do little here, most of the standard declarations are set up after the
      front-end has been run.  Use the same `char' as C for Interfaces.C.  */
-  build_common_tree_nodes (flag_signed_char, false);
+  build_common_tree_nodes (flag_signed_char);
 
   /* In Ada, we use an unsigned 8-bit type for the default boolean type.  */
   boolean_type_node = make_unsigned_type (8);
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog
index c4f6bc42a7c..745ce8e6c32 100644
--- a/gcc/c-family/ChangeLog
+++ b/gcc/c-family/ChangeLog
@@ -1,3 +1,8 @@
+2016-02-08  Bernd Schmidt  <bschmidt@redhat.com>
+
+	PR target/60410
+	* c.opt (fshort-double): Remove.
+
 2016-02-05  Martin Sebor  <msebor@redhat.com>
 
 	PR c++/69662
diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c
index 378afaec6b5..3d84316cd12 100644
--- a/gcc/c-family/c-common.c
+++ b/gcc/c-family/c-common.c
@@ -5237,7 +5237,7 @@ c_common_nodes_and_builtins (void)
   tree va_list_arg_type_node;
   int i;
 
-  build_common_tree_nodes (flag_signed_char, flag_short_double);
+  build_common_tree_nodes (flag_signed_char);
 
   /* Define `int' and `char' first so that dbx will output them first.  */
   record_builtin_type (RID_INT, NULL, integer_type_node);
diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
index 04dec78eb8e..b4ec3b8c056 100644
--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
@@ -1439,10 +1439,6 @@ frtti
 C++ ObjC++ Optimization Var(flag_rtti) Init(1)
 Generate run time type descriptor information.
 
-fshort-double
-C ObjC C++ ObjC++ LTO Optimization Var(flag_short_double)
-Use the same size for double as for float.
-
 fshort-enums
 C ObjC C++ ObjC++ LTO Optimization Var(flag_short_enums)
 Use the narrowest integer type possible for enumeration types.
diff --git a/gcc/config/mips/t-img-elf b/gcc/config/mips/t-img-elf
index eca0a2e64da..8c2285330e4 100644
--- a/gcc/config/mips/t-img-elf
+++ b/gcc/config/mips/t-img-elf
@@ -20,19 +20,14 @@
 # A multilib for mips32r6+LE
 # A multilib for mips64r6
 # A multilib for mips64r6+LE
-# A multilib for mips32r6+LE+singlefloat+shortdouble
 
-MULTILIB_OPTIONS = mips64r6 mabi=64 EL msoft-float/msingle-float fshort-double
-MULTILIB_DIRNAMES = mips64r6 64 el sof sgl short
+MULTILIB_OPTIONS = mips64r6 mabi=64 EL msoft-float/msingle-float
+MULTILIB_DIRNAMES = mips64r6 64 el sof sgl
 MULTILIB_MATCHES = EL=mel EB=meb
 
 # Don't build 64r6 with single-float
 MULTILIB_EXCEPTIONS += mips64r6/*msingle-float*
-MULTILIB_EXCEPTIONS += mips64r6/*fshort-double*
 
 MULTILIB_EXCEPTIONS += mabi=64*
 MULTILIB_EXCEPTIONS += msingle-float*
 MULTILIB_EXCEPTIONS += *msingle-float
-MULTILIB_EXCEPTIONS += fshort-double
-MULTILIB_EXCEPTIONS += EL/fshort-double
-MULTILIB_EXCEPTIONS += *msoft-float/fshort-double
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 0a2a6f45d7c..666d976f7c4 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -489,8 +489,7 @@ Objective-C and Objective-C++ Dialects}.
 -fpcc-struct-return  -fpic  -fPIC -fpie -fPIE -fno-plt @gol
 -fno-jump-tables @gol
 -frecord-gcc-switches @gol
--freg-struct-return  -fshort-enums @gol
--fshort-double  -fshort-wchar @gol
+-freg-struct-return  -fshort-enums  -fshort-wchar @gol
 -fverbose-asm  -fpack-struct[=@var{n}]  @gol
 -fleading-underscore  -ftls-model=@var{model} @gol
 -fstack-reuse=@var{reuse_level} @gol
@@ -11109,14 +11108,6 @@ is equivalent to the smallest integer type that has enough room.
 code that is not binary compatible with code generated without that switch.
 Use it to conform to a non-default application binary interface.
 
-@item -fshort-double
-@opindex fshort-double
-Use the same size for @code{double} as for @code{float}.
-
-@strong{Warning:} the @option{-fshort-double} switch causes GCC to generate
-code that is not binary compatible with code generated without that switch.
-Use it to conform to a non-default application binary interface.
-
 @item -fshort-wchar
 @opindex fshort-wchar
 Override the underlying type for @code{wchar_t} to be @code{short
diff --git a/gcc/fortran/f95-lang.c b/gcc/fortran/f95-lang.c
index 9c3a311fbc7..b89a291e761 100644
--- a/gcc/fortran/f95-lang.c
+++ b/gcc/fortran/f95-lang.c
@@ -491,9 +491,8 @@ gfc_init_decl_processing (void)
   global_binding_level = current_binding_level;
 
   /* Build common tree nodes. char_type_node is unsigned because we
-     only use it for actual characters, not for INTEGER(1). Also, we
-     want double_type_node to actually have double precision.  */
-  build_common_tree_nodes (false, false);
+     only use it for actual characters, not for INTEGER(1).  */
+  build_common_tree_nodes (false);
 
   void_list_node = build_tree_list (NULL_TREE, void_type_node);
 
diff --git a/gcc/go/go-lang.c b/gcc/go/go-lang.c
index 9f21424af6d..9c95c8e0bb1 100644
--- a/gcc/go/go-lang.c
+++ b/gcc/go/go-lang.c
@@ -89,7 +89,7 @@ static const char *go_relative_import_path = NULL;
 static bool
 go_langhook_init (void)
 {
-  build_common_tree_nodes (false, false);
+  build_common_tree_nodes (false);
 
   /* I don't know why this has to be done explicitly.  */
   void_list_node = build_tree_list (NULL_TREE, void_type_node);
diff --git a/gcc/java/decl.c b/gcc/java/decl.c
index 472b1990f19..93304daea00 100644
--- a/gcc/java/decl.c
+++ b/gcc/java/decl.c
@@ -565,7 +565,7 @@ java_init_decl_processing (void)
   global_binding_level = current_binding_level;
 
   /* Build common tree nodes, Java has an unsigned char.  */
-  build_common_tree_nodes (false, false);
+  build_common_tree_nodes (false);
 
   /* ???  Now we continue and override some of the built types again
      with Java specific types.  As the above generated types are
diff --git a/gcc/lto-wrapper.c b/gcc/lto-wrapper.c
index ced6f2f9cff..6a337a030e0 100644
--- a/gcc/lto-wrapper.c
+++ b/gcc/lto-wrapper.c
@@ -308,7 +308,6 @@ merge_and_complain (struct cl_decoded_option **decoded_options,
 
 	case OPT_freg_struct_return:
 	case OPT_fpcc_struct_return:
-	case OPT_fshort_double:
 	  for (j = 0; j < *decoded_options_count; ++j)
 	    if ((*decoded_options)[j].opt_index == foption->opt_index)
 	      break;
@@ -511,7 +510,6 @@ append_compiler_options (obstack *argv_obstack, struct cl_decoded_option *opts,
 	case OPT_fgnu_tm:
 	case OPT_freg_struct_return:
 	case OPT_fpcc_struct_return:
-	case OPT_fshort_double:
 	case OPT_ffp_contract_:
 	case OPT_fmath_errno:
 	case OPT_fsigned_zeros:
@@ -569,7 +567,6 @@ append_linker_options (obstack *argv_obstack, struct cl_decoded_option *opts,
 
 	case OPT_freg_struct_return:
 	case OPT_fpcc_struct_return:
-	case OPT_fshort_double:
 	  /* Ignore these, they are determined by the input files.
 	     ???  We fail to diagnose a possible mismatch here.  */
 	  continue;
diff --git a/gcc/lto/lto-lang.c b/gcc/lto/lto-lang.c
index ec4db44e277..691e9e20905 100644
--- a/gcc/lto/lto-lang.c
+++ b/gcc/lto/lto-lang.c
@@ -1246,7 +1246,7 @@ lto_init (void)
   flag_generate_lto = (flag_wpa != NULL);
 
   /* Create the basic integer types.  */
-  build_common_tree_nodes (flag_signed_char, flag_short_double);
+  build_common_tree_nodes (flag_signed_char);
 
   /* The global tree for the main identifier is filled in by
      language-specific front-end initialization that is not run in the
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f39a510f3ad..be3f5ec5407 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-02-08  Bernd Schmidt  <bschmidt@redhat.com>
+
+	PR target/60410
+	* gcc.dg/lto/pr55113_0.c: Remove test.
+
 2016-02-08  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/69719
diff --git a/gcc/testsuite/gcc.dg/lto/pr55113_0.c b/gcc/testsuite/gcc.dg/lto/pr55113_0.c
deleted file mode 100644
index 59e944c318d..00000000000
--- a/gcc/testsuite/gcc.dg/lto/pr55113_0.c
+++ /dev/null
@@ -1,13 +0,0 @@
-/* PR 55113 */
-/* { dg-lto-do link } */
-/* { dg-lto-options { { -flto -fshort-double -O0 } } }*/
-/* { dg-skip-if "PR60410" { i?86-*-* x86_64-*-* } } */
-
-int 
-main(void)
-{
-  float a = 1.0;
-  float b = 2.0;
-  double f = a + b * 1e-12;
-  return (int)f - 1;
-}
diff --git a/gcc/tree.c b/gcc/tree.c
index 07cb9d9765c..1d14583a958 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -10036,12 +10036,10 @@ build_atomic_base (tree type, unsigned int align)
 }
 
 /* Create nodes for all integer types (and error_mark_node) using the sizes
-   of C datatypes.  SIGNED_CHAR specifies whether char is signed,
-   SHORT_DOUBLE specifies whether double should be of the same precision
-   as float.  */
+   of C datatypes.  SIGNED_CHAR specifies whether char is signed.  */
 
 void
-build_common_tree_nodes (bool signed_char, bool short_double)
+build_common_tree_nodes (bool signed_char)
 {
   int i;
 
@@ -10202,10 +10200,7 @@ build_common_tree_nodes (bool signed_char, bool short_double)
   layout_type (float_type_node);
 
   double_type_node = make_node (REAL_TYPE);
-  if (short_double)
-    TYPE_PRECISION (double_type_node) = FLOAT_TYPE_SIZE;
-  else
-    TYPE_PRECISION (double_type_node) = DOUBLE_TYPE_SIZE;
+  TYPE_PRECISION (double_type_node) = DOUBLE_TYPE_SIZE;
   layout_type (double_type_node);
 
   long_double_type_node = make_node (REAL_TYPE);
diff --git a/gcc/tree.h b/gcc/tree.h
index 191f21b34ba..544a6a163df 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -4763,7 +4763,7 @@ extern tree reconstruct_complex_type (tree, tree);
 extern int real_onep (const_tree);
 extern int real_minus_onep (const_tree);
 extern void init_ttree (void);
-extern void build_common_tree_nodes (bool, bool);
+extern void build_common_tree_nodes (bool);
 extern void build_common_builtin_nodes (void);
 extern tree build_nonstandard_integer_type (unsigned HOST_WIDE_INT, int);
 extern tree build_nonstandard_boolean_type (unsigned HOST_WIDE_INT);