lib1funcs.asm (udivsi3): Add support for divide functions.

2011-11-16  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>

	* config/arm/lib1funcs.asm (udivsi3): Add support for divide
	functions.
	(aeabi_uidivmod): Likewise.
	(umodsi3): Likewise.
	(divsi3): Likewise.
	(aeabi_idivmod): Likewise.
	(modsi3): Likewise.

From-SVN: r181419

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index 403f19edd1b8417df563f2469935106b347c388e..57fcc5400194ad9122a60caf56126036bf58b20a 100644 (file)
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,13 @@
+2011-11-16  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
+
+       * config/arm/lib1funcs.asm (udivsi3): Add support for divide
+       functions.
+       (aeabi_uidivmod): Likewise.     
+       (umodsi3): Likewise.
+       (divsi3): Likewise.
+       (aeabi_idivmod): Likewise.
+       (modsi3): Likewise.
+
 2011-11-16  Tristan Gingold  <gingold@adacore.com>
 
        * config/alpha/qrnnd.S: Use specific pseudos for VMS.

diff --git a/libgcc/config/arm/lib1funcs.S b/libgcc/config/arm/lib1funcs.S
index 2e76c01df4b3b127f51b45d74efd49c1aaf9def9..094d79afad6ee0de0bae085aa4226fc81aea436c 100644 (file)
--- a/libgcc/config/arm/lib1funcs.S
+++ b/libgcc/config/arm/lib1funcs.S
@@ -951,6 +951,17 @@ LSYM(udivsi3_skip_div0_test):
        pop     { work }
        RET
 
+#elif defined(__ARM_ARCH_EXT_IDIV__)
+
+       ARM_FUNC_START udivsi3
+       ARM_FUNC_ALIAS aeabi_uidiv udivsi3
+
+       cmp     r1, #0
+       beq     LSYM(Ldiv0)
+
+       udiv    r0, r0, r1
+       RET
+
 #else /* ARM version/Thumb-2.  */
 
        ARM_FUNC_START udivsi3
@@ -997,6 +1008,14 @@ FUNC_START aeabi_uidivmod
        mul     r2, r0
        sub     r1, r1, r2
        bx      r3
+#elif defined(__ARM_ARCH_EXT_IDIV__)
+ARM_FUNC_START aeabi_uidivmod
+       cmp     r1, #0
+       beq     LSYM(Ldiv0)
+       mov     r2, r0 
+       udiv    r0, r0, r1
+       mls     r1, r0, r1, r2
+       RET
 #else
 ARM_FUNC_START aeabi_uidivmod
        cmp     r1, #0
@@ -1014,9 +1033,19 @@ ARM_FUNC_START aeabi_uidivmod
 /* ------------------------------------------------------------------------ */
 #ifdef L_umodsi3
 
-       FUNC_START umodsi3
+#ifdef __ARM_ARCH_EXT_IDIV__
 
-#ifdef __thumb__
+       ARM_FUNC_START umodsi3
+
+       cmp     r1, #0
+       beq     LSYM(Ldiv0)
+       udiv    r2, r0, r1
+       mls     r0, r1, r2, r0
+       RET
+
+#elif defined(__thumb__)
+
+       FUNC_START umodsi3
 
        cmp     divisor, #0
        beq     LSYM(Ldiv0)
@@ -1035,6 +1064,8 @@ LSYM(Lover10):
        
 #else  /* ARM version.  */
        
+       FUNC_START umodsi3
+
        subs    r2, r1, #1                      @ compare divisor with 1
        bcc     LSYM(Ldiv0)
        cmpne   r0, r1                          @ compare dividend with divisor
@@ -1091,6 +1122,16 @@ LSYM(Lover12):
        pop     { work }
        RET
 
+#elif defined(__ARM_ARCH_EXT_IDIV__)
+
+       ARM_FUNC_START divsi3
+       ARM_FUNC_ALIAS aeabi_idiv divsi3
+
+       cmp     r1, #0
+       beq     LSYM(Ldiv0)
+       sdiv    r0, r0, r1
+       RET
+
 #else /* ARM/Thumb-2 version.  */
        
        ARM_FUNC_START divsi3   
@@ -1153,6 +1194,14 @@ FUNC_START aeabi_idivmod
        mul     r2, r0
        sub     r1, r1, r2
        bx      r3
+#elif defined(__ARM_ARCH_EXT_IDIV__)
+ARM_FUNC_START aeabi_idivmod
+       cmp     r1, #0
+       beq     LSYM(Ldiv0)
+       mov     r2, r0
+       sdiv    r0, r0, r1
+       mls     r1, r0, r1, r2
+       RET
 #else
 ARM_FUNC_START aeabi_idivmod
        cmp     r1, #0
@@ -1170,9 +1219,20 @@ ARM_FUNC_START aeabi_idivmod
 /* ------------------------------------------------------------------------ */
 #ifdef L_modsi3
 
-       FUNC_START modsi3
+#if defined(__ARM_ARCH_EXT_IDIV__)
 
-#ifdef __thumb__
+       ARM_FUNC_START modsi3
+
+       cmp     r1, #0
+       beq     LSYM(Ldiv0)
+
+       sdiv    r2, r0, r1
+       mls     r0, r1, r2, r0
+       RET
+
+#elif defined(__thumb__)
+
+       FUNC_START modsi3
 
        mov     curbit, #1
        cmp     divisor, #0
@@ -1204,6 +1264,8 @@ LSYM(Lover12):
 
 #else /* ARM version.  */
        
+       FUNC_START modsi3
+
        cmp     r1, #0
        beq     LSYM(Ldiv0)
        rsbmi   r1, r1, #0                      @ loops below use unsigned.