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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef SaturatedArithmeticARM_h | 5 #ifndef SKY_ENGINE_WTF_ASM_SATURATEDARITHMETICARM_H_ |
| 6 #define SaturatedArithmeticARM_h | 6 #define SKY_ENGINE_WTF_ASM_SATURATEDARITHMETICARM_H_ |
| 7 | 7 |
| 8 #include <stdint.h> | 8 #include <stdint.h> |
| 9 #include <limits> | 9 #include <limits> |
| 10 #include "sky/engine/wtf/CPU.h" | 10 #include "sky/engine/wtf/CPU.h" |
| 11 | 11 |
| 12 ALWAYS_INLINE int32_t saturatedAddition(int32_t a, int32_t b) | 12 ALWAYS_INLINE int32_t saturatedAddition(int32_t a, int32_t b) |
| 13 { | 13 { |
| 14 int32_t result; | 14 int32_t result; |
| 15 | 15 |
| 16 asm("qadd %[output],%[first],%[second]" | 16 asm("qadd %[output],%[first],%[second]" |
| (...skipping 78 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 95 asm("usat %[output],%[saturate],%[value]\n\t" | 95 asm("usat %[output],%[saturate],%[value]\n\t" |
| 96 "lsl %[output],%[shift]" | 96 "lsl %[output],%[shift]" |
| 97 : [output] "=r" (result) | 97 : [output] "=r" (result) |
| 98 : [value] "r" (value), | 98 : [value] "r" (value), |
| 99 [saturate] "n" (saturate), | 99 [saturate] "n" (saturate), |
| 100 [shift] "n" (FractionalShift)); | 100 [shift] "n" (FractionalShift)); |
| 101 | 101 |
| 102 return result; | 102 return result; |
| 103 } | 103 } |
| 104 | 104 |
| 105 #endif // SaturatedArithmeticARM_h | 105 #endif // SKY_ENGINE_WTF_ASM_SATURATEDARITHMETICARM_H_ |
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