1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __ASM_ARM_COMPILER_H 3*4882a593Smuzhiyun #define __ASM_ARM_COMPILER_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * This is used to ensure the compiler did actually allocate the register we 7*4882a593Smuzhiyun * asked it for some inline assembly sequences. Apparently we can't trust 8*4882a593Smuzhiyun * the compiler from one version to another so a bit of paranoia won't hurt. 9*4882a593Smuzhiyun * This string is meant to be concatenated with the inline asm string and 10*4882a593Smuzhiyun * will cause compilation to stop on mismatch. 11*4882a593Smuzhiyun * (for details, see gcc PR 15089) 12*4882a593Smuzhiyun * For compatibility with clang, we have to specifically take the equivalence 13*4882a593Smuzhiyun * of 'r11' <-> 'fp' and 'r12' <-> 'ip' into account as well. 14*4882a593Smuzhiyun */ 15*4882a593Smuzhiyun #define __asmeq(x, y) \ 16*4882a593Smuzhiyun ".ifnc " x "," y "; " \ 17*4882a593Smuzhiyun ".ifnc " x y ",fpr11; " \ 18*4882a593Smuzhiyun ".ifnc " x y ",r11fp; " \ 19*4882a593Smuzhiyun ".ifnc " x y ",ipr12; " \ 20*4882a593Smuzhiyun ".ifnc " x y ",r12ip; " \ 21*4882a593Smuzhiyun ".err; " \ 22*4882a593Smuzhiyun ".endif; " \ 23*4882a593Smuzhiyun ".endif; " \ 24*4882a593Smuzhiyun ".endif; " \ 25*4882a593Smuzhiyun ".endif; " \ 26*4882a593Smuzhiyun ".endif\n\t" 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun #endif /* __ASM_ARM_COMPILER_H */ 30