re PR target/24055 ("could not split insn" with -O1 -ffast-math)

	PR target/24055
	* config/i386/i386.md ("*fistdi2_1"): New pattern.
	("*fist<mode>2_1"): Use only HImode and SImode register operands.
	("fist<mode>2_with_temp"): Use only register operands.

From-SVN: r104647

gcc/ChangeLog

+2005-09-26  Uros Bizjak  <uros@kss-loka.si>
+
+	PR target/24055
+	* config/i386/i386.md ("*fistdi2_1"): New pattern.
+	("*fist<mode>2_1"): Use only HImode and SImode register operands.
+	("fist<mode>2_with_temp"): Use only register operands.
+
 2005-09-26  J"orn Rennecke <joern.rennecke@st.com>
 
 	* rtlanal.c (reg_used_between_p): Don't check for CLOBBERs in

gcc/config/i386/i386.md

@@ -16475,9 +16475,9 @@
   DONE;
 })
 
-(define_insn_and_split "*fist<mode>2_1"
-  [(set (match_operand:X87MODEI 0 "nonimmediate_operand" "=m,?r")
-	(unspec:X87MODEI [(match_operand:XF 1 "register_operand" "f,f")]
+(define_insn_and_split "*fistdi2_1"
+  [(set (match_operand:DI 0 "nonimmediate_operand" "=m,?r")
+	(unspec:DI [(match_operand:XF 1 "register_operand" "f,f")]
 	 UNSPEC_FIST))]
   "TARGET_USE_FANCY_MATH_387
    && flag_unsafe_math_optimizations
@@ -16487,17 +16487,17 @@
   [(const_int 0)]
 {
   if (memory_operand (operands[0], VOIDmode))
-    emit_insn (gen_fist<mode>2 (operands[0], operands[1]));
+    emit_insn (gen_fistdi2 (operands[0], operands[1]));
   else
     {
-      operands[2] = assign_386_stack_local (<MODE>mode, SLOT_TEMP);
-      emit_insn (gen_fist<mode>2_with_temp (operands[0], operands[1],
-					    operands[2]));
+      operands[2] = assign_386_stack_local (DImode, SLOT_TEMP);
+      emit_insn (gen_fistdi2_with_temp (operands[0], operands[1],
+					 operands[2]));
     }
   DONE;
 }
   [(set_attr "type" "fpspc")
-   (set_attr "mode" "<MODE>")])
+   (set_attr "mode" "DI")])
 
 (define_insn "fistdi2"
   [(set (match_operand:DI 0 "memory_operand" "=m")
@@ -16545,6 +16545,25 @@
 	      (clobber (match_dup 3))])]
   "")
 
+(define_insn_and_split "*fist<mode>2_1"
+  [(set (match_operand:X87MODEI12 0 "register_operand" "=r")
+	(unspec:X87MODEI12 [(match_operand:XF 1 "register_operand" "f")]
+	 UNSPEC_FIST))]
+  "TARGET_USE_FANCY_MATH_387
+   && flag_unsafe_math_optimizations
+   && !(reload_completed || reload_in_progress)"
+  "#"
+  "&& 1"
+  [(const_int 0)]
+{
+  operands[2] = assign_386_stack_local (<MODE>mode, SLOT_TEMP);
+  emit_insn (gen_fist<mode>2_with_temp (operands[0], operands[1],
+					operands[2]));
+  DONE;
+}
+  [(set_attr "type" "fpspc")
+   (set_attr "mode" "<MODE>")])
+
 (define_insn "fist<mode>2"
   [(set (match_operand:X87MODEI12 0 "memory_operand" "=m")
 	(unspec:X87MODEI12 [(match_operand:XF 1 "register_operand" "f")]
@@ -16556,10 +16575,10 @@
    (set_attr "mode" "<MODE>")])
 
 (define_insn "fist<mode>2_with_temp"
-  [(set (match_operand:X87MODEI12 0 "nonimmediate_operand" "=m,?r")
-	(unspec:X87MODEI12 [(match_operand:XF 1 "register_operand" "f,f")]
+  [(set (match_operand:X87MODEI12 0 "register_operand" "=r")
+	(unspec:X87MODEI12 [(match_operand:XF 1 "register_operand" "f")]
 	 UNSPEC_FIST))
-   (clobber (match_operand:X87MODEI12 2 "memory_operand" "=m,m"))]
+   (clobber (match_operand:X87MODEI12 2 "memory_operand" "=m"))]
   "TARGET_USE_FANCY_MATH_387
    && flag_unsafe_math_optimizations"
   "#"