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[src/netbsd-6]: src/common/lib/libc/arch/arm/gen The last commit message said...
details: https://anonhg.NetBSD.org/src/rev/b883edd89329
branches: netbsd-6
changeset: 775468:b883edd89329
user: msaitoh <msaitoh%NetBSD.org@localhost>
date: Tue Nov 20 09:08:30 2012 +0000
description:
The last commit message said rev. 1.4 was included, but it wasn't in divsi3.
Apply rev. 1.4.
diffstat:
common/lib/libc/arch/arm/gen/divsi3.S | 354 +---------------------------------
1 files changed, 2 insertions(+), 352 deletions(-)
diffs (truncated from 366 to 300 lines):
diff -r a901e20846dd -r b883edd89329 common/lib/libc/arch/arm/gen/divsi3.S
--- a/common/lib/libc/arch/arm/gen/divsi3.S Tue Nov 20 03:33:16 2012 +0000
+++ b/common/lib/libc/arch/arm/gen/divsi3.S Tue Nov 20 09:08:30 2012 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: divsi3.S,v 1.1.52.1 2012/11/19 18:38:02 riz Exp $ */
+/* $NetBSD: divsi3.S,v 1.1.52.2 2012/11/20 09:08:30 msaitoh Exp $ */
/*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
@@ -16,355 +16,5 @@
#include <machine/asm.h>
-/*
- * stack is aligned as there's a possibility of branching to .L_overflow
- * which makes a C call
- */
-
-.L_overflow:
-#if !defined(_KERNEL) && !defined(_STANDALONE)
- mov r0, #8 /* SIGFPE */
- bl PIC_SYM(_C_LABEL(raise), PLT) /* raise it */
- mov r0, #0
-#else
- /* XXX should cause a fatal error */
- mvn r0, #0
-#endif
- RET
-
-ENTRY(__udivsi3)
-.L_udivide: /* r0 = r0 / r1; r1 = r0 % r1 */
- eor r0, r1, r0
- eor r1, r0, r1
- eor r0, r1, r0
- /* r0 = r1 / r0; r1 = r1 % r0 */
- cmp r0, #1
- bcc .L_overflow
- beq .L_divide_l0
- mov ip, #0
- movs r1, r1
- bpl .L_divide_l1
- orr ip, ip, #0x20000000 /* ip bit 0x20000000 = -ve r1 */
- movs r1, r1, lsr #1
- orrcs ip, ip, #0x10000000 /* ip bit 0x10000000 = bit 0 of r1 */
- b .L_divide_l1
-
-.L_divide_l0: /* r0 == 1 */
- mov r0, r1
- mov r1, #0
- RET
-
ENTRY(__divsi3)
-.L_divide: /* r0 = r0 / r1; r1 = r0 % r1 */
- eor r0, r1, r0
- eor r1, r0, r1
- eor r0, r1, r0
- /* r0 = r1 / r0; r1 = r1 % r0 */
- cmp r0, #1
- bcc .L_overflow
- beq .L_divide_l0
- ands ip, r0, #0x80000000
- rsbmi r0, r0, #0
- ands r2, r1, #0x80000000
- eor ip, ip, r2
- rsbmi r1, r1, #0
- orr ip, r2, ip, lsr #1 /* ip bit 0x40000000 = -ve division */
- /* ip bit 0x80000000 = -ve remainder */
-
-.L_divide_l1:
- mov r2, #1
- mov r3, #0
-
- /*
- * If the highest bit of the dividend is set, we have to be
- * careful when shifting the divisor. Test this.
- */
- movs r1,r1
- bpl .L_old_code
-
- /*
- * At this point, the highest bit of r1 is known to be set.
- * We abuse this below in the tst instructions.
- */
- tst r1, r0 /*, lsl #0 */
- bmi .L_divide_b1
- tst r1, r0, lsl #1
- bmi .L_divide_b2
- tst r1, r0, lsl #2
- bmi .L_divide_b3
- tst r1, r0, lsl #3
- bmi .L_divide_b4
- tst r1, r0, lsl #4
- bmi .L_divide_b5
- tst r1, r0, lsl #5
- bmi .L_divide_b6
- tst r1, r0, lsl #6
- bmi .L_divide_b7
- tst r1, r0, lsl #7
- bmi .L_divide_b8
- tst r1, r0, lsl #8
- bmi .L_divide_b9
- tst r1, r0, lsl #9
- bmi .L_divide_b10
- tst r1, r0, lsl #10
- bmi .L_divide_b11
- tst r1, r0, lsl #11
- bmi .L_divide_b12
- tst r1, r0, lsl #12
- bmi .L_divide_b13
- tst r1, r0, lsl #13
- bmi .L_divide_b14
- tst r1, r0, lsl #14
- bmi .L_divide_b15
- tst r1, r0, lsl #15
- bmi .L_divide_b16
- tst r1, r0, lsl #16
- bmi .L_divide_b17
- tst r1, r0, lsl #17
- bmi .L_divide_b18
- tst r1, r0, lsl #18
- bmi .L_divide_b19
- tst r1, r0, lsl #19
- bmi .L_divide_b20
- tst r1, r0, lsl #20
- bmi .L_divide_b21
- tst r1, r0, lsl #21
- bmi .L_divide_b22
- tst r1, r0, lsl #22
- bmi .L_divide_b23
- tst r1, r0, lsl #23
- bmi .L_divide_b24
- tst r1, r0, lsl #24
- bmi .L_divide_b25
- tst r1, r0, lsl #25
- bmi .L_divide_b26
- tst r1, r0, lsl #26
- bmi .L_divide_b27
- tst r1, r0, lsl #27
- bmi .L_divide_b28
- tst r1, r0, lsl #28
- bmi .L_divide_b29
- tst r1, r0, lsl #29
- bmi .L_divide_b30
- tst r1, r0, lsl #30
- bmi .L_divide_b31
-/*
- * instead of:
- * tst r1, r0, lsl #31
- * bmi .L_divide_b32
- */
- b .L_divide_b32
-
-.L_old_code:
- cmp r1, r0
- bcc .L_divide_b0
- cmp r1, r0, lsl #1
- bcc .L_divide_b1
- cmp r1, r0, lsl #2
- bcc .L_divide_b2
- cmp r1, r0, lsl #3
- bcc .L_divide_b3
- cmp r1, r0, lsl #4
- bcc .L_divide_b4
- cmp r1, r0, lsl #5
- bcc .L_divide_b5
- cmp r1, r0, lsl #6
- bcc .L_divide_b6
- cmp r1, r0, lsl #7
- bcc .L_divide_b7
- cmp r1, r0, lsl #8
- bcc .L_divide_b8
- cmp r1, r0, lsl #9
- bcc .L_divide_b9
- cmp r1, r0, lsl #10
- bcc .L_divide_b10
- cmp r1, r0, lsl #11
- bcc .L_divide_b11
- cmp r1, r0, lsl #12
- bcc .L_divide_b12
- cmp r1, r0, lsl #13
- bcc .L_divide_b13
- cmp r1, r0, lsl #14
- bcc .L_divide_b14
- cmp r1, r0, lsl #15
- bcc .L_divide_b15
- cmp r1, r0, lsl #16
- bcc .L_divide_b16
- cmp r1, r0, lsl #17
- bcc .L_divide_b17
- cmp r1, r0, lsl #18
- bcc .L_divide_b18
- cmp r1, r0, lsl #19
- bcc .L_divide_b19
- cmp r1, r0, lsl #20
- bcc .L_divide_b20
- cmp r1, r0, lsl #21
- bcc .L_divide_b21
- cmp r1, r0, lsl #22
- bcc .L_divide_b22
- cmp r1, r0, lsl #23
- bcc .L_divide_b23
- cmp r1, r0, lsl #24
- bcc .L_divide_b24
- cmp r1, r0, lsl #25
- bcc .L_divide_b25
- cmp r1, r0, lsl #26
- bcc .L_divide_b26
- cmp r1, r0, lsl #27
- bcc .L_divide_b27
- cmp r1, r0, lsl #28
- bcc .L_divide_b28
- cmp r1, r0, lsl #29
- bcc .L_divide_b29
- cmp r1, r0, lsl #30
- bcc .L_divide_b30
-.L_divide_b32:
- cmp r1, r0, lsl #31
- subhs r1, r1,r0, lsl #31
- addhs r3, r3,r2, lsl #31
-.L_divide_b31:
- cmp r1, r0, lsl #30
- subhs r1, r1,r0, lsl #30
- addhs r3, r3,r2, lsl #30
-.L_divide_b30:
- cmp r1, r0, lsl #29
- subhs r1, r1,r0, lsl #29
- addhs r3, r3,r2, lsl #29
-.L_divide_b29:
- cmp r1, r0, lsl #28
- subhs r1, r1,r0, lsl #28
- addhs r3, r3,r2, lsl #28
-.L_divide_b28:
- cmp r1, r0, lsl #27
- subhs r1, r1,r0, lsl #27
- addhs r3, r3,r2, lsl #27
-.L_divide_b27:
- cmp r1, r0, lsl #26
- subhs r1, r1,r0, lsl #26
- addhs r3, r3,r2, lsl #26
-.L_divide_b26:
- cmp r1, r0, lsl #25
- subhs r1, r1,r0, lsl #25
- addhs r3, r3,r2, lsl #25
-.L_divide_b25:
- cmp r1, r0, lsl #24
- subhs r1, r1,r0, lsl #24
- addhs r3, r3,r2, lsl #24
-.L_divide_b24:
- cmp r1, r0, lsl #23
- subhs r1, r1,r0, lsl #23
- addhs r3, r3,r2, lsl #23
-.L_divide_b23:
- cmp r1, r0, lsl #22
- subhs r1, r1,r0, lsl #22
- addhs r3, r3,r2, lsl #22
-.L_divide_b22:
- cmp r1, r0, lsl #21
- subhs r1, r1,r0, lsl #21
- addhs r3, r3,r2, lsl #21
-.L_divide_b21:
- cmp r1, r0, lsl #20
- subhs r1, r1,r0, lsl #20
- addhs r3, r3,r2, lsl #20
-.L_divide_b20:
- cmp r1, r0, lsl #19
- subhs r1, r1,r0, lsl #19
- addhs r3, r3,r2, lsl #19
-.L_divide_b19:
- cmp r1, r0, lsl #18
- subhs r1, r1,r0, lsl #18
- addhs r3, r3,r2, lsl #18
-.L_divide_b18:
- cmp r1, r0, lsl #17
- subhs r1, r1,r0, lsl #17
- addhs r3, r3,r2, lsl #17
-.L_divide_b17:
- cmp r1, r0, lsl #16
- subhs r1, r1,r0, lsl #16
- addhs r3, r3,r2, lsl #16
-.L_divide_b16:
- cmp r1, r0, lsl #15
- subhs r1, r1,r0, lsl #15
- addhs r3, r3,r2, lsl #15
-.L_divide_b15:
- cmp r1, r0, lsl #14
- subhs r1, r1,r0, lsl #14
- addhs r3, r3,r2, lsl #14
-.L_divide_b14:
- cmp r1, r0, lsl #13
- subhs r1, r1,r0, lsl #13
- addhs r3, r3,r2, lsl #13
-.L_divide_b13:
- cmp r1, r0, lsl #12
- subhs r1, r1,r0, lsl #12
- addhs r3, r3,r2, lsl #12
-.L_divide_b12:
- cmp r1, r0, lsl #11
- subhs r1, r1,r0, lsl #11
- addhs r3, r3,r2, lsl #11
-.L_divide_b11:
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