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Inline LuaJIT reinterpret

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Rerumu 2021-11-30 20:43:36 -05:00
parent d2648b2e96
commit b4901e72e1
1 changed files with 6 additions and 10 deletions
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16
wasm/runtime/luajit.lua
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@ -8,15 +8,6 @@ local u32 = ffi.typeof('uint32_t')
local u64 = ffi.typeof('uint64_t') local u64 = ffi.typeof('uint64_t')
local i64 = ffi.typeof('int64_t') local i64 = ffi.typeof('int64_t')
ffi.cdef [[
typedef union {
int32_t i32;
int64_t i64;
float f32;
double f64;
} Reinterpret;
]]
if jit and jit.opt then jit.opt.start("maxsnap=1000", "loopunroll=500", "maxmcode=2048") end if jit and jit.opt then jit.opt.start("maxsnap=1000", "loopunroll=500", "maxmcode=2048") end
local function truncate(num) local function truncate(num)
@ -230,7 +221,12 @@ do
-- This would surely be an issue in a multi-thread environment... -- This would surely be an issue in a multi-thread environment...
-- ... thankfully this isn't one. -- ... thankfully this isn't one.
local RE_INSTANCE = ffi.new('Reinterpret') local RE_INSTANCE = ffi.new [[union {
int32_t i32;
int64_t i64;
float f32;
double f64;
}]]
local function truncate_i64(num) return i64(truncate(num)) end local function truncate_i64(num) return i64(truncate(num)) end