diff options
| author | Matthew Gretton-Dann <matthew.gretton-dann@arm.com> | 2011-11-16 18:02:12 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 2011-11-16 18:02:12 +0000 |
| commit | 425d737b36727ca68cb77ff01d6aad8b150044ee (patch) | |
| tree | be0651d23eff26d5d3f9720a58c32ca892d961ce /libgcc/config | |
| parent | 0fe1f31b9e6a6064b2748b97a971b2b7ccf18337 (diff) | |
| download | gcc-425d737b36727ca68cb77ff01d6aad8b150044ee.zip gcc-425d737b36727ca68cb77ff01d6aad8b150044ee.tar.gz gcc-425d737b36727ca68cb77ff01d6aad8b150044ee.tar.bz2 | |
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
Diffstat (limited to 'libgcc/config')
| -rw-r--r-- | libgcc/config/arm/lib1funcs.S | 70 |
1 files changed, 66 insertions, 4 deletions
diff --git a/libgcc/config/arm/lib1funcs.S b/libgcc/config/arm/lib1funcs.S index 2e76c01..094d79a 100644 --- 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. |