| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __ASM_ARM_COMPILER_H |
| 3 | #define __ASM_ARM_COMPILER_H |
| 4 | |
| 5 | /* |
| 6 | * This is used to ensure the compiler did actually allocate the register we |
| 7 | * asked it for some inline assembly sequences. Apparently we can't trust |
| 8 | * the compiler from one version to another so a bit of paranoia won't hurt. |
| 9 | * This string is meant to be concatenated with the inline asm string and |
| 10 | * will cause compilation to stop on mismatch. |
| 11 | * (for details, see gcc PR 15089) |
| 12 | * For compatibility with clang, we have to specifically take the equivalence |
| 13 | * of 'r11' <-> 'fp' and 'r12' <-> 'ip' into account as well. |
| 14 | */ |
| 15 | #define __asmeq(x, y) \ |
| 16 | ".ifnc " x "," y "; " \ |
| 17 | ".ifnc " x y ",fpr11; " \ |
| 18 | ".ifnc " x y ",r11fp; " \ |
| 19 | ".ifnc " x y ",ipr12; " \ |
| 20 | ".ifnc " x y ",r12ip; " \ |
| 21 | ".err; " \ |
| 22 | ".endif; " \ |
| 23 | ".endif; " \ |
| 24 | ".endif; " \ |
| 25 | ".endif; " \ |
| 26 | ".endif\n\t" |
| 27 | |
| 28 | |
| 29 | #endif /* __ASM_ARM_COMPILER_H */ |