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host/include/loongarch64: Fix inline assembly compatibility with Clang

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Clang on LoongArch only accepts fp register names in the dollar-prefixed
form, while GCC allows omitting the dollar. Change registers in ASM
clobbers to the dollar-prefixed form to make user emulators buildable
with Clang on loongarch64. No functional change invovled.

Cc: qemu-stable@nongnu.org
Fixes: adc8467e697 ("host/include/loongarch64: Add atomic16 load and store")
Signed-off-by: Yao Zi <ziyao@disroot.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
This commit is contained in:
Yao Zi 2025-03-14 03:31:51 +00:00 committed by Bibo Mao
parent 1dae461a91
commit ca2737d6ec
3 changed files with 7 additions and 5 deletions
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4
host/include/loongarch64/host/atomic128-ldst.h.inc
View File

@ -28,7 +28,7 @@ static inline Int128 atomic16_read_ro(const Int128 *ptr)
asm("vld $vr0, %2, 0\n\t"
"vpickve2gr.d %0, $vr0, 0\n\t"
"vpickve2gr.d %1, $vr0, 1"
: "=r"(l), "=r"(h) : "r"(ptr), "m"(*ptr) : "f0");
: "=r"(l), "=r"(h) : "r"(ptr), "m"(*ptr) : "$f0");
return int128_make128(l, h);
}
@ -46,7 +46,7 @@ static inline void atomic16_set(Int128 *ptr, Int128 val)
asm("vinsgr2vr.d $vr0, %1, 0\n\t"
"vinsgr2vr.d $vr0, %2, 1\n\t"
"vst $vr0, %3, 0"
: "=m"(*ptr) : "r"(l), "r"(h), "r"(ptr) : "f0");
: "=m"(*ptr) : "r"(l), "r"(h), "r"(ptr) : "$f0");
}
#endif /* LOONGARCH_ATOMIC128_LDST_H */

6
host/include/loongarch64/host/bufferiszero.c.inc
View File

@ -61,7 +61,8 @@ static bool buffer_is_zero_lsx(const void *buf, size_t len)
"2:"
: "=&r"(ret), "+r"(p)
: "r"(buf), "r"(e), "r"(l)
: "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "fcc0");
: "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7", "$f8",
"$fcc0");
return ret;
}
@ -119,7 +120,8 @@ static bool buffer_is_zero_lasx(const void *buf, size_t len)
"3:"
: "=&r"(ret), "+r"(p)
: "r"(buf), "r"(e), "r"(l)
: "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "fcc0");
: "$f0", "$f1", "$f2", "$f3", "$f4", "$f5", "$f6", "$f7", "$f8",
"$fcc0");
return ret;
}

2
host/include/loongarch64/host/load-extract-al16-al8.h.inc
View File

@ -31,7 +31,7 @@ static inline uint64_t load_atom_extract_al16_or_al8(void *pv, int s)
asm("vld $vr0, %2, 0\n\t"
"vpickve2gr.d %0, $vr0, 0\n\t"
"vpickve2gr.d %1, $vr0, 1"
: "=r"(l), "=r"(h) : "r"(ptr_align), "m"(*ptr_align) : "f0");
: "=r"(l), "=r"(h) : "r"(ptr_align), "m"(*ptr_align) : "$f0");
return (l >> shr) | (h << (-shr & 63));
}