2003-08-23 Jason Eckhardt <jle@rice.edu>

        * calls.c (emit_library_call_value_1): Remove code related
        to LIBGCC_NEEDS_DOUBLE.
        * config/stormy16/stormy16.h: Remove mention of LIBGCC_NEEDS_DOUBLE.
        * doc/tm.texi: Likewise.
        * system.h: Poison the LIBGCC_NEEDS_DOUBLE macro.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@70740 138bc75d-0d04-0410-961f-82ee72b054a4

5 files changed, 11 insertions, 22 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f98e4e231c6..55d4baa1588 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2003-08-23  Jason Eckhardt  <jle@rice.edu>
+
+	* calls.c (emit_library_call_value_1): Remove code related
+	to LIBGCC_NEEDS_DOUBLE.
+	* config/stormy16/stormy16.h: Remove mention of LIBGCC_NEEDS_DOUBLE.
+	* doc/tm.texi: Likewise.
+	* system.h: Poison the LIBGCC_NEEDS_DOUBLE macro.
+
 2003-08-23  Richard Sandiford  <rsandifo@redhat.com>
 
 	* config/mips/linux64.h (STARTFILE_PREFIX_SPEC): Remove.
diff --git a/gcc/calls.c b/gcc/calls.c
index f4bf6d3b70d..11d423275b3 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -3733,13 +3733,6 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
 	  || (GET_MODE (val) != mode && GET_MODE (val) != VOIDmode))
 	abort ();
 
-      /* On some machines, there's no way to pass a float to a library fcn.
-	 Pass it as a double instead.  */
-#ifdef LIBGCC_NEEDS_DOUBLE
-      if (LIBGCC_NEEDS_DOUBLE && mode == SFmode)
-	val = convert_modes (DFmode, SFmode, val, 0), mode = DFmode;
-#endif
-
       /* There's no need to call protect_from_queue, because
 	 either emit_move_insn or emit_push_insn will do that.  */
 
diff --git a/gcc/config/stormy16/stormy16.h b/gcc/config/stormy16/stormy16.h
index c6d1596a4d9..3d1ab50756f 100644
--- a/gcc/config/stormy16/stormy16.h
+++ b/gcc/config/stormy16/stormy16.h
@@ -540,11 +540,7 @@ enum reg_class
    The obvious choice would be `float'--but that won't work with traditional C
    compilers that expect all arguments declared as `float' to arrive as
    `double'.  To avoid this conversion, the library routines ask for the value
-   as some other type and then treat it as a `float'.
-
-   On some systems, no other type will work for this.  For these systems, you
-   must use `LIBGCC_NEEDS_DOUBLE' instead, to force conversion of the values
-   `double' before they are passed.  */
+   as some other type and then treat it as a `float'.  */
 /* #define FLOAT_ARG_TYPE */
 
 /* Define this macro to override the way library routines redesignate a `float'
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 47fbb783fd2..a6b23d60bfb 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -4768,15 +4768,6 @@ number of existing systems lacks support for these functions in the runtime so
 they needs this macro to be redefined to 0.
 @end defmac
 
-@defmac LIBGCC_NEEDS_DOUBLE
-Define this macro if @code{float} arguments cannot be passed to library
-routines (so they must be converted to @code{double}).  This macro
-affects both how library calls are generated and how the library
-routines in @file{libgcc.a} accept their arguments.  It is useful on
-machines where floating and fixed point arguments are passed
-differently, such as the i860.
-@end defmac
-
 @defmac NEXT_OBJC_RUNTIME
 Define this macro to generate code for Objective-C message sending using
 the calling convention of the NeXT system.  This calling convention
diff --git a/gcc/system.h b/gcc/system.h
index aae0dda56fd..aa71fbbfdb9 100644
--- a/gcc/system.h
+++ b/gcc/system.h
@@ -610,7 +610,8 @@ typedef char _Bool;
 	DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME	   \
 	DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE		   \
 	INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT	   \
-	EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER
+	EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER	   \
+	LIBGCC_NEEDS_DOUBLE
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\