From Joern Rennecke:

	* sh.h (CPP_SPEC, TARGET_SWITCHES): Add m4-nofpu.
	* sh.md (udivsi3, divsi3): Don't use libcalls that use the FPU
	unless TARGET_SH3E is set.
	* t-sh (MULTILIB_MATCHES): Add m2=m4-nofpu.

	* sh.md (ashlsi3_d, ashlsi3_k): Remove, replace with
	(ashlsi3_std): New pattern.
	(ashlsi3 expander): Use it for TARGET_SH3.
	* sh.c (gen_ashift): Use it instead of ashlsi3_k.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35411 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 10736c0..279d0f6 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,16 @@
+2000-08-01  Bernd Schmidt  <bernds@cygnus.co.uk>
+
+       From Joern Rennecke:
+       * sh.h (CPP_SPEC, TARGET_SWITCHES): Add m4-nofpu.
+       * sh.md (udivsi3, divsi3): Don't use libcalls that use the FPU
+       unless TARGET_SH3E is set.
+       * t-sh (MULTILIB_MATCHES): Add m2=m4-nofpu.
+
+       * sh.md (ashlsi3_d, ashlsi3_k): Remove, replace with
+       (ashlsi3_std): New pattern.
+       (ashlsi3 expander): Use it for TARGET_SH3.
+       * sh.c (gen_ashift): Use it instead of ashlsi3_k.
+
 Tue Aug  1 12:34:21 MET DST 2000  Jan Hubicka  <jh@suse.cz>
 
        * loop.c (canonicalize_condition):  Use destination, not source to

diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index c6103de..e63796a 100644 (file)
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -1039,7 +1039,7 @@ gen_ashift (type, n, reg)
        emit_insn (gen_lshrsi3_k (reg, reg, GEN_INT (n)));
       break;
     case ASHIFT:
-      emit_insn (gen_ashlsi3_k (reg, reg, GEN_INT (n)));
+      emit_insn (gen_ashlsi3_std (reg, reg, GEN_INT (n)));
       break;
     }
 }

diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h
index 981a802..82be5c8 100644 (file)
--- a/gcc/config/sh/sh.h
+++ b/gcc/config/sh/sh.h
@@ -46,8 +46,9 @@ extern int code_for_indirect_jump_scratch;
 %{m3e:-D__SH3E__} \
 %{m4-single-only:-D__SH4_SINGLE_ONLY__} \
 %{m4-single:-D__SH4_SINGLE__} \
+%{m4-nofpu:-D__sh3__} \
 %{m4:-D__SH4__} \
-%{!m1:%{!m2:%{!m3:%{!m3e:%{!m4:%{!m4-single:%{!m4-single-only:-D__sh1__}}}}}}} \
+%{!m1:%{!m2:%{!m3:%{!m3e:%{!m4:%{!m4-single:%{!m4-single-only:%{!m4-nofpu:-D__sh1__}}}}}}}} \
 %{mnomacsave:-D__NOMACSAVE__} \
 %{mhitachi:-D__HITACHI__}"
 
@@ -182,8 +183,9 @@ extern int target_flags;
   {"2",                SH2_BIT},                       \
   {"3",                SH3_BIT|SH2_BIT},               \
   {"3e",       SH3E_BIT|SH3_BIT|SH2_BIT|FPU_SINGLE_BIT},       \
-  {"4-single-only",    SH3E_BIT|SH3_BIT|SH2_BIT|SH3E_BIT|HARD_SH4_BIT|FPU_SINGLE_BIT}, \
+  {"4-single-only",    SH3E_BIT|SH3_BIT|SH2_BIT|HARD_SH4_BIT|FPU_SINGLE_BIT},  \
   {"4-single", SH4_BIT|SH3E_BIT|SH3_BIT|SH2_BIT|HARD_SH4_BIT|FPU_SINGLE_BIT},\
+  {"4-nofpu",  SH3_BIT|SH2_BIT|HARD_SH4_BIT},\
   {"4",                SH4_BIT|SH3E_BIT|SH3_BIT|SH2_BIT|HARD_SH4_BIT}, \
   {"b",                -LITTLE_ENDIAN_BIT},            \
   {"bigtable",         BIGTABLE_BIT},                  \

diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md
index 5e73c1f..dd915d3 100644 (file)
--- a/gcc/config/sh/sh.md
+++ b/gcc/config/sh/sh.md
@@ -955,7 +955,7 @@
 
   operands[3] = gen_reg_rtx(SImode);
   /* Emit the move of the address to a pseudo outside of the libcall.  */
-  if (TARGET_HARD_SH4)
+  if (TARGET_HARD_SH4 && TARGET_SH3E)
     {
       emit_move_insn (operands[3],
                      gen_rtx_SYMBOL_REF (SImode, \"__udivsi3_i4\"));
@@ -1041,7 +1041,7 @@
 
   operands[3] = gen_reg_rtx(SImode);
   /* Emit the move of the address to a pseudo outside of the libcall.  */
-  if (TARGET_HARD_SH4)
+  if (TARGET_HARD_SH4 && TARGET_SH3E)
     {
       emit_move_insn (operands[3],
                      gen_rtx_SYMBOL_REF (SImode, \"__sdivsi3_i4\"));
@@ -1525,23 +1525,32 @@
 ;;
 ;; shift left
 
-(define_insn "ashlsi3_d"
-  [(set (match_operand:SI 0 "arith_reg_operand" "=r")
-       (ashift:SI (match_operand:SI 1 "arith_reg_operand" "0")
-                  (match_operand:SI 2 "arith_reg_operand" "r")))]
-  "TARGET_SH3"
-  "shld        %2,%0"
-  [(set_attr "type" "dyn_shift")])
-
-(define_insn "ashlsi3_k"
-  [(set (match_operand:SI 0 "arith_reg_operand" "=r,r")
-       (ashift:SI (match_operand:SI 1 "arith_reg_operand" "0,0")
-                  (match_operand:SI 2 "const_int_operand" "M,K")))]
-  "CONST_OK_FOR_K (INTVAL (operands[2]))"
+;; This pattern is used by init_expmed for computing the costs of shift
+;; insns.
+
+(define_insn_and_split "ashlsi3_std"
+  [(set (match_operand:SI 0 "arith_reg_operand" "=r,r,r,r")
+       (ashift:SI (match_operand:SI 1 "arith_reg_operand" "0,0,0,0")
+                  (match_operand:SI 2 "nonmemory_operand" "r,M,K,?ri")))
+   (clobber (match_scratch:SI 3 "=X,X,X,&r"))]
+  "TARGET_SH3
+   || (GET_CODE (operands[2]) == CONST_INT
+       && CONST_OK_FOR_K (INTVAL (operands[2])))"
   "@
-       add     %0,%0
-       shll%O2 %0"
-  [(set_attr "type" "arith")])
+   shld        %2,%0
+   add %0,%0
+   shll%O2     %0
+   #"
+  "TARGET_SH3
+   && GET_CODE (operands[2]) == CONST_INT
+   && ! CONST_OK_FOR_K (INTVAL (operands[2]))"
+  [(set (match_dup 3) (match_dup 2))
+   (parallel
+    [(set (match_dup 0) (ashift:SI (match_dup 1) (match_dup 3)))
+     (clobber (match_dup 4))])]
+  "operands[4] = gen_rtx_SCRATCH (SImode);"
+  [(set_attr "length" "*,*,*,4")
+   (set_attr "type" "dyn_shift,arith,arith,arith")])
 
 (define_insn "ashlhi3_k"
   [(set (match_operand:HI 0 "arith_reg_operand" "=r,r")
@@ -1594,9 +1603,9 @@
   if (GET_CODE (operands[2]) == CONST_INT
       && sh_dynamicalize_shift_p (operands[2]))
     operands[2] = force_reg (SImode, operands[2]);
-  if (TARGET_SH3 && arith_reg_operand (operands[2], GET_MODE (operands[2])))
+  if (TARGET_SH3)
     {
-      emit_insn (gen_ashlsi3_d (operands[0], operands[1], operands[2]));
+      emit_insn (gen_ashlsi3_std (operands[0], operands[1], operands[2]));
       DONE;
     }
   if (! immediate_operand (operands[2], GET_MODE (operands[2])))

diff --git a/gcc/config/sh/t-sh b/gcc/config/sh/t-sh
index ebe013e..cb187aa 100644 (file)
--- a/gcc/config/sh/t-sh
+++ b/gcc/config/sh/t-sh
@@ -23,7 +23,7 @@ fp-bit.c: $(srcdir)/config/fp-bit.c
 
 MULTILIB_OPTIONS= ml m2/m3e/m4-single-only/m4-single/m4
 MULTILIB_DIRNAMES= 
-MULTILIB_MATCHES = m2=m3
+MULTILIB_MATCHES = m2=m3 m2=m4-nofpu
 
 LIBGCC = stmp-multilib
 INSTALL_LIBGCC = install-multilib