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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 */
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 */