ft32.opt (mnodiv): New.

[thirdparty/gcc.git] / libgcc / config / ft32 / lib1funcs.S

diff --git a/libgcc/config/ft32/lib1funcs.S b/libgcc/config/ft32/lib1funcs.S
index 6d52af7ca2aa9813d181ba7457c8ac970a578be4..a6b04789edf79fa328de059ca8c472534f63c0fb 100644 (file)
--- a/libgcc/config/ft32/lib1funcs.S
+++ b/libgcc/config/ft32/lib1funcs.S
@@ -25,8 +25,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 # for implementation details of all except division which is detailed below
 #
 
+#ifdef L_fp_tools
 // .global __cmpsf2_
-
 nan:            .long 0x7FFFFFFF    # also abs mask
 inf:            .long 0x7F800000
 sign_mask:      .long 0x80000000
@@ -37,6 +37,14 @@ smallest_norm:  .long 0x00800000    # implicit bit
 high_FF:        .long 0xFF000000
 high_uint:      .long 0xFFFFFFFF
 
+ntz_table:
+    .byte   32,0,1,12,2,6,0,13,3,0,7,0,0,0,0,14
+    .byte   10,4,0,0,8,0,0,25,0,0,0,0,0,21,27,15
+    .byte   31,11,5,0,0,0,0,0,9,0,0,24,0,0,20,26
+    .byte   30,0,0,0,0,23,0,19,29,0,22,18,28,17,16,0
+
+#endif
+
 # Supply a few 'missing' instructions
 
 # not
@@ -87,12 +95,6 @@ high_uint:      .long 0xFFFFFFFF
     lpmi.b  \x, \x, 0
 .endm
 
-ntz_table:
-    .byte   32,0,1,12,2,6,0,13,3,0,7,0,0,0,0,14
-    .byte   10,4,0,0,8,0,0,25,0,0,0,0,0,21,27,15
-    .byte   31,11,5,0,0,0,0,0,9,0,0,24,0,0,20,26
-    .byte   30,0,0,0,0,23,0,19,29,0,22,18,28,17,16,0
-
 # calculate leading zero count
 .macro      nlz x, scr
     flip    \x, \x, 31
@@ -503,6 +505,9 @@ mul_z0:
 ## for implementation details
 
 
+
+
+#ifdef  L_divsf3
 dc_1: .long             0xffffe7d7
 dc_2: .long             0xffffffe8
 dc_3: .long             0xffbad86f
@@ -517,9 +522,6 @@ dc_11: .long            0x0452b1bf
 dc_12: .long            0xFFFFFFC0
 spec_val_test:  .long   0x7F7FFFFF
 
-
-
-#ifdef  L_divsf3
 .global __divsf3
 __divsf3:
     push    $r13
@@ -869,6 +871,7 @@ float_not_zero2:
     return
 #endif
 
+#if 0
 ##########################################################################
 ##########################################################################
 ## float compare
@@ -913,7 +916,74 @@ cmp_is_gt:
 cmp_is_eq:
     ldk     $r0, 0
     return
+#endif
 
+#ifdef  L_udivsi3
+.global __udivsi3
+__udivsi3:
+       # $r0 is dividend
+       # $r1 is divisor
+       ldk     $r2,0
+       push    $r28
+       ldk     $r28,-32
+0:
+       lshr    $r3,$r0,31      # Shift $r2:$r0 left one
+       ashl    $r0,$r0,1
+       ashl    $r2,$r2,1
+       or      $r2,$r2,$r3
+       cmp     $r2,$r1
+       jmpc    b,1f
+2:
+       sub     $r2,$r2,$r1
+       add     $r0,$r0,1
+1:
+       add     $r28,$r28,1
+       jmpx    31,$r28,1,0b
+       pop     $r28
+       # $r0: quotient
+       # $r2: remainder
+       return
+#endif
 
+#ifdef L_umodsi3
+.global        __umodsi3
+__umodsi3:
+       call    __udivsi3
+       move    $r0,$r2
+       return
+#endif
 
+#ifdef L_divsi3
+.global        __divsi3
+__divsi3:
+       xor     $r5,$r0,$r1     # $r5 is sign of result
+       ashr    $r2,$r0,31      # $r0 = abs($r0)
+       xor     $r0,$r0,$r2
+       sub     $r0,$r0,$r2
+       ashr    $r2,$r1,31      # $r1 = abs($r1)
+       xor     $r1,$r1,$r2
+       sub     $r1,$r1,$r2
+       call    __udivsi3
+       ashr    $r5,$r5,31
+       xor     $r0,$r0,$r5
+       sub     $r0,$r0,$r5
+       return
+       
+#endif
 
+#ifdef L_modsi3
+.global        __modsi3
+__modsi3:
+       move    $r5,$r0         # $r5 is sign of result
+       ashr    $r2,$r0,31      # $r0 = abs($r0)
+       xor     $r0,$r0,$r2
+       sub     $r0,$r0,$r2
+       ashr    $r2,$r1,31      # $r1 = abs($r1)
+       xor     $r1,$r1,$r2
+       sub     $r1,$r1,$r2
+       call    __umodsi3
+       ashr    $r5,$r5,31
+       xor     $r0,$r0,$r5
+       sub     $r0,$r0,$r5
+       return
+#endif