lib1funcs.asm (___mulsi3): Remove unnecessary push and pop.

	* config/h8300/lib1funcs.asm (___mulsi3): Remove unnecessary
	push and pop.  Replace add.l with add.w.

From-SVN: r52559

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 63fd6350be4c39c505c9b920447106e45953c5e9..636536f3d9fb8d75cb359af398100079d5359902 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2002-04-20  Kazu Hirata  <kazu@hxi.com>
+
+       * config/h8300/lib1funcs.asm (___mulsi3): Remove unnecessary
+       push and pop.  Replace add.l with add.w.
+
 2002-04-20  Toshiyasu Morita  <toshiyasu.morita@hsa.hitachi.com>
 
        * config/h8300/lib1funcs.asm (___mulsi3): Use hardware

diff --git a/gcc/config/h8300/lib1funcs.asm b/gcc/config/h8300/lib1funcs.asm
index 0fbeacd0ed07f3670fe991c19fb8018b33d12b28..9ac8c1bf2188599ee5be758873846cd85bf4220d 100644 (file)
--- a/gcc/config/h8300/lib1funcs.asm
+++ b/gcc/config/h8300/lib1funcs.asm
@@ -742,36 +742,29 @@ _done:
 ;
 ; New code:
 ;
-; 16b * 16b =  68 states
-; 16b * 32b =  96 states
-; 32b * 32b = 124 states
+; 16b * 16b =  48 states
+; 16b * 32b =  72 states
+; 32b * 32b =  92 states
 ;
 
        .global ___mulsi3
 ___mulsi3:
-       push.l  er3     ; (10 states)
-  
        mov.w   r1,r2   ; ( 2 states) b * d
        mulxu   r0,er2  ; (22 states)
   
        mov.w   e0,r3   ; ( 2 states) a * d
        beq     L_skip1 ; ( 4 states)
        mulxu   r1,er3  ; (22 states)
-       mov.w   r3,e3   ; ( 2 states)
-       mov.w   #0,r3   ; ( 2 states)
-       add.l   er3,er2 ; ( 2 states)
+       add.w   r3,e2   ; ( 2 states)
 
 L_skip1:
        mov.w   e1,r3   ; ( 2 states) c * b
        beq     L_skip2 ; ( 4 states)
        mulxu   r0,er3  ; (22 states)
-       mov.w   r3,e3   ; ( 2 states)
-       mov.w   #0,r3   ; ( 2 states)
-       add.l   er3,er2 ; ( 2 states)
+       add.w   r3,e2   ; ( 2 states)
 
 L_skip2:
        mov.l   er2,er0 ; ( 2 states)
-       pop.l   er3     ; (10 states)
        rts             ; (10 states)
 
 #endif