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comparison: gfx/skia/trunk/src/opts/memset32_neon.S
gfx/skia/trunk/src/opts/memset32_neon.S
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- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:440152d732f8 |
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| 1 /*************************************************************************** | |
| 2 * Copyright (c) 2009,2010, Code Aurora Forum. All rights reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 ***************************************************************************/ | |
| 7 | |
| 8 .code 32 | |
| 9 .fpu neon | |
| 10 .align 4 | |
| 11 .globl memset32_neon | |
| 12 .func | |
| 13 | |
| 14 /* r0 = buffer, r1 = value, r2 = times to write */ | |
| 15 memset32_neon: | |
| 16 cmp r2, #1 | |
| 17 streq r1, [r0], #4 | |
| 18 bxeq lr | |
| 19 | |
| 20 cmp r2, #4 | |
| 21 bgt memset32_neon_start | |
| 22 cmp r2, #0 | |
| 23 bxeq lr | |
| 24 memset32_neon_small: | |
| 25 str r1, [r0], #4 | |
| 26 subs r2, r2, #1 | |
| 27 bne memset32_neon_small | |
| 28 bx lr | |
| 29 memset32_neon_start: | |
| 30 cmp r2, #16 | |
| 31 blt memset32_dropthru | |
| 32 vdup.32 q0, r1 | |
| 33 vmov q1, q0 | |
| 34 cmp r2, #32 | |
| 35 blt memset32_16 | |
| 36 cmp r2, #64 | |
| 37 blt memset32_32 | |
| 38 cmp r2, #128 | |
| 39 blt memset32_64 | |
| 40 memset32_128: | |
| 41 movs r12, r2, lsr #7 | |
| 42 memset32_loop128: | |
| 43 subs r12, r12, #1 | |
| 44 vst1.64 {q0, q1}, [r0]! | |
| 45 vst1.64 {q0, q1}, [r0]! | |
| 46 vst1.64 {q0, q1}, [r0]! | |
| 47 vst1.64 {q0, q1}, [r0]! | |
| 48 vst1.64 {q0, q1}, [r0]! | |
| 49 vst1.64 {q0, q1}, [r0]! | |
| 50 vst1.64 {q0, q1}, [r0]! | |
| 51 vst1.64 {q0, q1}, [r0]! | |
| 52 vst1.64 {q0, q1}, [r0]! | |
| 53 vst1.64 {q0, q1}, [r0]! | |
| 54 vst1.64 {q0, q1}, [r0]! | |
| 55 vst1.64 {q0, q1}, [r0]! | |
| 56 vst1.64 {q0, q1}, [r0]! | |
| 57 vst1.64 {q0, q1}, [r0]! | |
| 58 vst1.64 {q0, q1}, [r0]! | |
| 59 vst1.64 {q0, q1}, [r0]! | |
| 60 bne memset32_loop128 | |
| 61 ands r2, r2, #0x7f | |
| 62 bxeq lr | |
| 63 memset32_64: | |
| 64 movs r12, r2, lsr #6 | |
| 65 beq memset32_32 | |
| 66 vst1.64 {q0, q1}, [r0]! | |
| 67 vst1.64 {q0, q1}, [r0]! | |
| 68 vst1.64 {q0, q1}, [r0]! | |
| 69 vst1.64 {q0, q1}, [r0]! | |
| 70 vst1.64 {q0, q1}, [r0]! | |
| 71 vst1.64 {q0, q1}, [r0]! | |
| 72 vst1.64 {q0, q1}, [r0]! | |
| 73 vst1.64 {q0, q1}, [r0]! | |
| 74 ands r2, r2, #0x3f | |
| 75 bxeq lr | |
| 76 memset32_32: | |
| 77 movs r12, r2, lsr #5 | |
| 78 beq memset32_16 | |
| 79 vst1.64 {q0, q1}, [r0]! | |
| 80 vst1.64 {q0, q1}, [r0]! | |
| 81 vst1.64 {q0, q1}, [r0]! | |
| 82 vst1.64 {q0, q1}, [r0]! | |
| 83 ands r2, r2, #0x1f | |
| 84 bxeq lr | |
| 85 memset32_16: | |
| 86 movs r12, r2, lsr #4 | |
| 87 beq memset32_dropthru | |
| 88 and r2, r2, #0xf | |
| 89 vst1.64 {q0, q1}, [r0]! | |
| 90 vst1.64 {q0, q1}, [r0]! | |
| 91 memset32_dropthru: | |
| 92 rsb r2, r2, #15 | |
| 93 add pc, pc, r2, lsl #2 | |
| 94 nop | |
| 95 str r1, [r0, #56] | |
| 96 str r1, [r0, #52] | |
| 97 str r1, [r0, #48] | |
| 98 str r1, [r0, #44] | |
| 99 str r1, [r0, #40] | |
| 100 str r1, [r0, #36] | |
| 101 str r1, [r0, #32] | |
| 102 str r1, [r0, #28] | |
| 103 str r1, [r0, #24] | |
| 104 str r1, [r0, #20] | |
| 105 str r1, [r0, #16] | |
| 106 str r1, [r0, #12] | |
| 107 str r1, [r0, #8] | |
| 108 str r1, [r0, #4] | |
| 109 str r1, [r0, #0] | |
| 110 bx lr | |
| 111 | |
| 112 .endfunc | |
| 113 .end |
