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36 lines
945 B
36 lines
945 B
/**
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* Testing ASM VSX register number fixer '%x<n>'
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*
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* old versions of CLANG doesn't support %x<n> in the inline asm template
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* which fixes register number when using any of the register constraints wa, wd, wf.
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*
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* xref:
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* - https://bugs.llvm.org/show_bug.cgi?id=31837
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* - https://gcc.gnu.org/onlinedocs/gcc/Machine-Constraints.html
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*/
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#ifndef __VSX__
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#error "VSX is not supported"
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#endif
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#include <altivec.h>
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#if (defined(__GNUC__) && !defined(vec_xl)) || (defined(__clang__) && !defined(__IBMC__))
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#define vsx_ld vec_vsx_ld
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#define vsx_st vec_vsx_st
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#else
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#define vsx_ld vec_xl
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#define vsx_st vec_xst
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#endif
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int main(void)
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{
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float z4[] = {0, 0, 0, 0};
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signed int zout[] = {0, 0, 0, 0};
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__vector float vz4 = vsx_ld(0, z4);
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__vector signed int asm_ret = vsx_ld(0, zout);
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__asm__ ("xvcvspsxws %x0,%x1" : "=wa" (vz4) : "wa" (asm_ret));
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vsx_st(asm_ret, 0, zout);
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return zout[0];
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}
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