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https://github.com/xen-project/xen.git
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Jan Beulich
72577bdf70
Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
#include <stdbool.h>
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#if defined(__i386__) && VEC_SIZE == 16
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# define ENTRY(name) \
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asm ( "\t.text\n" \
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"\t.globl _start\n" \
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"_start:\n" \
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"\tpush %ebp\n" \
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"\tmov %esp,%ebp\n" \
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"\tand $~0xf,%esp\n" \
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"\tcall " #name "\n" \
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"\tleave\n" \
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"\tret" )
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#else
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# define ENTRY(name) \
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asm ( "\t.text\n" \
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"\t.globl _start\n" \
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"_start:\n" \
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"\tjmp " #name )
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#endif
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typedef
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#if defined(INT_SIZE)
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# define ELEM_SIZE INT_SIZE
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signed int
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# if INT_SIZE == 1
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# define MODE QI
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# elif INT_SIZE == 2
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# define MODE HI
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# elif INT_SIZE == 4
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# define MODE SI
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# elif INT_SIZE == 8
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# define MODE DI
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# endif
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#elif defined(UINT_SIZE)
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# define ELEM_SIZE UINT_SIZE
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unsigned int
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# if UINT_SIZE == 1
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# define MODE QI
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# elif UINT_SIZE == 2
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# define MODE HI
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# elif UINT_SIZE == 4
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# define MODE SI
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# elif UINT_SIZE == 8
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# define MODE DI
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# endif
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#elif defined(FLOAT_SIZE)
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float
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# define ELEM_SIZE FLOAT_SIZE
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# if FLOAT_SIZE == 4
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# define MODE SF
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# elif FLOAT_SIZE == 8
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# define MODE DF
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# endif
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#endif
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#ifndef VEC_SIZE
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# define VEC_SIZE ELEM_SIZE
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#endif
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__attribute__((mode(MODE), vector_size(VEC_SIZE))) vec_t;
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#define ELEM_COUNT (VEC_SIZE / ELEM_SIZE)
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typedef unsigned int __attribute__((mode(QI), vector_size(VEC_SIZE))) byte_vec_t;
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/* Various builtins want plain char / int / long long vector types ... */
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typedef char __attribute__((vector_size(VEC_SIZE))) vqi_t;
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typedef short __attribute__((vector_size(VEC_SIZE))) vhi_t;
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typedef int __attribute__((vector_size(VEC_SIZE))) vsi_t;
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#if VEC_SIZE >= 8
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typedef long long __attribute__((vector_size(VEC_SIZE))) vdi_t;
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#endif
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/*
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* Suppress value propagation by the compiler, preventing unwanted
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* optimization. This at once makes the compiler use memory operands
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* more often, which for our purposes is the more interesting case.
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*/
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#define touch(var) asm volatile ( "" : "+m" (var) )
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