30 lines
978 B
C
30 lines
978 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_ARM_COMPILER_H
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#define __ASM_ARM_COMPILER_H
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/*
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* This is used to ensure the compiler did actually allocate the register we
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* asked it for some inline assembly sequences. Apparently we can't trust
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* the compiler from one version to another so a bit of paranoia won't hurt.
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* This string is meant to be concatenated with the inline asm string and
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* will cause compilation to stop on mismatch.
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* (for details, see gcc PR 15089)
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* For compatibility with clang, we have to specifically take the equivalence
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* of 'r11' <-> 'fp' and 'r12' <-> 'ip' into account as well.
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*/
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#define __asmeq(x, y) \
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".ifnc " x "," y "; " \
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".ifnc " x y ",fpr11; " \
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".ifnc " x y ",r11fp; " \
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".ifnc " x y ",ipr12; " \
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".ifnc " x y ",r12ip; " \
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".err; " \
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".endif; " \
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".endif; " \
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".endif; " \
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".endif; " \
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".endif\n\t"
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#endif /* __ASM_ARM_COMPILER_H */
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