[SH][committed] Remove function fldi_ok

[Oleg Endo <oleg.endo@t-online.de>]

[-- Attachment #1: Type: text/plain, Size: 389 bytes --]

Hi,

The fldi_ok function in sh.c has been returning 'true' for while.  Thus
it can as well be removed.  Tested with 'make all-gcc', committed as
r216320.

Cheers,
Oleg

gcc/ChangeLog:
	* config/sh/sh-protos.h (fldi_ok): Remove.
	* config/sh/sh.c (fldi_ok): Likewise.
	(sh_secondary_reload): Don't use fldi_ok.
	* config/sh/constraints.md (G constraint, H constraint): Don't use
	fldi_ok.

[-- Attachment #2: sh_remove_fldi_ok.patch --]
[-- Type: text/x-patch, Size: 2396 bytes --]

Index: gcc/config/sh/sh-protos.h
===================================================================
--- gcc/config/sh/sh-protos.h	(revision 216316)
+++ gcc/config/sh/sh-protos.h	(working copy)
@@ -191,7 +191,6 @@
 extern void sh_expand_epilogue (bool);
 extern void sh_set_return_address (rtx, rtx);
 extern int initial_elimination_offset (int, int);
-extern bool fldi_ok (void);
 extern bool sh_hard_regno_rename_ok (unsigned int, unsigned int);
 extern bool sh_cfun_interrupt_handler_p (void);
 extern bool sh_cfun_resbank_handler_p (void);
Index: gcc/config/sh/constraints.md
===================================================================
--- gcc/config/sh/constraints.md	(revision 216316)
+++ gcc/config/sh/constraints.md	(working copy)
@@ -210,12 +210,12 @@
 (define_constraint "G"
   "Double constant 0."
   (and (match_code "const_double")
-       (match_test "fp_zero_operand (op) && fldi_ok ()")))
+       (match_test "fp_zero_operand (op)")))
 
 (define_constraint "H"
   "Double constant 1."
   (and (match_code "const_double")
-       (match_test "fp_one_operand (op) && fldi_ok ()")))
+       (match_test "fp_one_operand (op)")))
 
 ;; Extra constraints
 (define_constraint "Q"
Index: gcc/config/sh/sh.c
===================================================================
--- gcc/config/sh/sh.c	(revision 216316)
+++ gcc/config/sh/sh.c	(working copy)
@@ -9875,19 +9875,6 @@
   return REAL_VALUES_EQUAL (r, dconst1);
 }
 
-/* In general mode switching is used.  If we are
-   compiling without -mfmovd, movsf_ie isn't taken into account for
-   mode switching.  We could check in machine_dependent_reorg for
-   cases where we know we are in single precision mode, but there is
-   interface to find that out during reload, so we must avoid
-   choosing an fldi alternative during reload and thus failing to
-   allocate a scratch register for the constant loading.  */
-bool
-fldi_ok (void)
-{
-  return true;
-}
-
 /* Return the TLS type for TLS symbols.  */
 enum tls_model
 tls_symbolic_operand (rtx op, enum machine_mode mode ATTRIBUTE_UNUSED)
@@ -13106,8 +13093,7 @@
       if (REGCLASS_HAS_FP_REG (rclass)
 	  && ! TARGET_SHMEDIA
 	  && immediate_operand ((x), mode)
-	  && ! ((fp_zero_operand (x) || fp_one_operand (x))
-		&& mode == SFmode && fldi_ok ()))
+	  && ! ((fp_zero_operand (x) || fp_one_operand (x)) && mode == SFmode))
 	switch (mode)
 	  {
 	  case SFmode: