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loongarch support #30

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merged 3 commits into from
Feb 23, 2024
Merged

loongarch support #30

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9185ea3
loongarch support
junchao-loongson Feb 23, 2024
d6837f7
update readme
junchao-loongson Feb 23, 2024
56a7454
update readme
junchao-loongson Feb 23, 2024
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4 changes: 2 additions & 2 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
Detect CPU ISA features with single-file

<table>
<tr><td>CPU</td><td>&#9989; x86, x86-64<br/>&#9989; arm, aarch64<br/>&#9989; mips<br/>&#9989; powerpc<br/>&#9989; s390x<br/>&#9989; risc-v</td><td rowspan=3>
<tr><td>CPU</td><td>&#9989; x86, x86-64<br/>&#9989; arm, aarch64<br/>&#9989; mips<br/>&#9989; powerpc<br/>&#9989; s390x<br/>&#9989; risc-v<br/>&#9989; loongarch</td><td rowspan=3>

```c
#define RUAPU_IMPLEMENTATION
Expand Down Expand Up @@ -223,7 +223,7 @@ _`fma4` on zen1, ISA in hypervisor, etc._
|mips|`msa`|
|powerpc|`vsx`|
|s390x|`zvector`|
|loongarch||
|loongarch|`lsx` `lasx`|
|risc-v|`i` `m` `a` `f` `d` `c`|

## Techniques inside ruapu
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4 changes: 4 additions & 0 deletions main.c
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Expand Up @@ -87,6 +87,10 @@ int main()
PRINT_ISA_SUPPORT(d)
PRINT_ISA_SUPPORT(c)

#elif __loongarch__
PRINT_ISA_SUPPORT(lsx)
PRINT_ISA_SUPPORT(lasx)

#endif

return 0;
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10 changes: 9 additions & 1 deletion ruapu.h
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Expand Up @@ -136,7 +136,7 @@ static int ruapu_detect_isa(ruapu_some_inst some_inst)

#if defined(__i386__) || defined(__x86_64__) || __s390x__
#define RUAPU_INSTCODE(isa, ...) static void ruapu_some_##isa() { asm volatile(".byte " #__VA_ARGS__ : : : ); }
#elif __aarch64__ || __arm__ || __mips__ || __riscv
#elif __aarch64__ || __arm__ || __mips__ || __riscv || __loongarch__
#define RUAPU_INSTCODE(isa, ...) static void ruapu_some_##isa() { asm volatile(".word " #__VA_ARGS__ : : : ); }
#elif __powerpc__
#define RUAPU_INSTCODE(isa, ...) static void ruapu_some_##isa() { asm volatile(".long " #__VA_ARGS__ : : : ); }
Expand Down Expand Up @@ -240,6 +240,10 @@ RUAPU_INSTCODE(f, 0x10a57553) // fmul.s fa0,fa0,fa0
RUAPU_INSTCODE(d, 0x12a57553) // fmul.d fa0,fa0,fa0
RUAPU_INSTCODE(c, 0x0001952a) // add a0,a0,a0 + nop

#elif __loongarch__
RUAPU_INSTCODE(lsx, 0x700b0000) //vadd.w vr0, vr0, vr0
RUAPU_INSTCODE(lasx, 0x740b0000) //xvadd.w xr0, xr0, xr0

#endif

#undef RUAPU_INSTCODE
Expand Down Expand Up @@ -320,6 +324,10 @@ RUAPU_ISAENTRY(f)
RUAPU_ISAENTRY(d)
RUAPU_ISAENTRY(c)

#elif __loongarch__
RUAPU_ISAENTRY(lsx)
RUAPU_ISAENTRY(lasx)

#endif
};

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