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| author | Andrew Turner <andrew@FreeBSD.org> | 2021-01-28 10:41:45 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2021-01-28 10:41:45 +0000 |
| commit | 4e76e4c301c72698e111580e278872a8323fba50 (patch) | |
| tree | 8d4a8fbfc9598f6f74a299b2e83bbd3bc111393a /lib/libc/arm/string | |
| parent | 4d2ff2330f515b0a42b83113a201de48c0f38f7a (diff) | |
| download | src-4e76e4c301c72698e111580e278872a8323fba50.tar.gz src-4e76e4c301c72698e111580e278872a8323fba50.zip | |
Remove obsolete code gated on _ARM_ARCH_*
This is all code only run on ARMv4 and ARMv5. Support for these have
been dropped from FreeBSD.
Differential Revision: https://reviews.freebsd.org/D28314
Diffstat (limited to 'lib/libc/arm/string')
| -rw-r--r-- | lib/libc/arm/string/ffs.S | 28 | ||||
| -rw-r--r-- | lib/libc/arm/string/memset.S | 41 |
2 files changed, 0 insertions, 69 deletions
diff --git a/lib/libc/arm/string/ffs.S b/lib/libc/arm/string/ffs.S index 1e25960d9bec..5756dd81d21d 100644 --- a/lib/libc/arm/string/ffs.S +++ b/lib/libc/arm/string/ffs.S @@ -48,38 +48,10 @@ ENTRY(ffs) /* Standard trick to isolate bottom bit in r0 or 0 if r0 = 0 on entry */ rsb r1, r0, #0 ands r0, r0, r1 -#ifndef _ARM_ARCH_5 - /* - * now r0 has at most one set bit, call this X - * if X = 0, all further instructions are skipped - */ - adrne r2, .L_ffs_table - orrne r0, r0, r0, lsl #4 /* r0 = X * 0x11 */ - orrne r0, r0, r0, lsl #6 /* r0 = X * 0x451 */ - rsbne r0, r0, r0, lsl #16 /* r0 = X * 0x0450fbaf */ - - /* now lookup in table indexed on top 6 bits of r0 */ - ldrbne r0, [ r2, r0, lsr #26 ] - - RET -.text; -.type .L_ffs_table, _ASM_TYPE_OBJECT; -.L_ffs_table: -/* 0 1 2 3 4 5 6 7 */ - .byte 0, 1, 2, 13, 3, 7, 0, 14 /* 0- 7 */ - .byte 4, 0, 8, 0, 0, 0, 0, 15 /* 8-15 */ - .byte 11, 5, 0, 0, 9, 0, 0, 26 /* 16-23 */ - .byte 0, 0, 0, 0, 0, 22, 28, 16 /* 24-31 */ - .byte 32, 12, 6, 0, 0, 0, 0, 0 /* 32-39 */ - .byte 10, 0, 0, 25, 0, 0, 21, 27 /* 40-47 */ - .byte 31, 0, 0, 0, 0, 24, 0, 20 /* 48-55 */ - .byte 30, 0, 23, 19, 29, 18, 17, 0 /* 56-63 */ -#else itt ne clzne r0, r0 rsbne r0, r0, #32 RET -#endif END(ffs) .section .note.GNU-stack,"",%progbits diff --git a/lib/libc/arm/string/memset.S b/lib/libc/arm/string/memset.S index 96d2f93183c4..6ac64274db95 100644 --- a/lib/libc/arm/string/memset.S +++ b/lib/libc/arm/string/memset.S @@ -105,20 +105,14 @@ ENTRY(memset) #ifndef _BZERO orr r3, r3, r3, lsl #8 /* Extend value to 16-bits */ #endif -#ifdef _ARM_ARCH_5E tst ip, #0x04 /* Quad-align for armv5e */ -#else - cmp r1, #0x10 -#endif #ifndef _BZERO orr r3, r3, r3, lsl #16 /* Extend value to 32-bits */ #endif -#ifdef _ARM_ARCH_5E itt ne subne r1, r1, #0x04 /* Quad-align if necessary */ strne r3, [ip], #0x04 cmp r1, #0x10 -#endif blt .Lmemset_loop4 /* If less than 16 then use words */ mov r2, r3 /* Duplicate data */ cmp r1, #0x80 /* If < 128 then skip the big loop */ @@ -127,7 +121,6 @@ ENTRY(memset) /* Do 128 bytes at a time */ .Lmemset_loop128: subs r1, r1, #0x80 -#ifdef _ARM_ARCH_5E itttt ge strdge r2, [ip], #0x08 strdge r2, [ip], #0x08 @@ -148,24 +141,6 @@ ENTRY(memset) strdge r2, [ip], #0x08 strdge r2, [ip], #0x08 strdge r2, [ip], #0x08 -#else - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} -#endif bgt .Lmemset_loop128 it eq RETeq /* Zero length so just exit */ @@ -176,17 +151,10 @@ ENTRY(memset) .Lmemset_loop32: subs r1, r1, #0x20 itttt ge -#ifdef _ARM_ARCH_5E strdge r2, [ip], #0x08 strdge r2, [ip], #0x08 strdge r2, [ip], #0x08 strdge r2, [ip], #0x08 -#else - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} -#endif bgt .Lmemset_loop32 it eq RETeq /* Zero length so just exit */ @@ -195,13 +163,8 @@ ENTRY(memset) /* Deal with 16 bytes or more */ itt ge -#ifdef _ARM_ARCH_5E strdge r2, [ip], #0x08 strdge r2, [ip], #0x08 -#else - stmiage ip!, {r2-r3} - stmiage ip!, {r2-r3} -#endif it eq RETeq /* Zero length so just exit */ @@ -217,15 +180,11 @@ ENTRY(memset) it eq RETeq /* Zero length so just exit */ -#ifdef _ARM_ARCH_5E /* Compensate for 64-bit alignment check */ adds r1, r1, #0x04 it eq RETeq cmp r1, #2 -#else - cmp r1, #-2 -#endif strb r3, [ip], #0x01 /* Set 1 byte */ it ge |