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Use common helper functions for unaligned loads.

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This commit is contained in:
Mike Pall
2011-05-09 18:09:29 +02:00
parent d9c1f771a7
commit 28e87d33e9
3 changed files with 34 additions and 23 deletions
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9
src/lj_opt_fold.c
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@@ -1647,16 +1647,13 @@ LJFOLDF(comm_bxor)
static TRef kfold_xload(jit_State *J, IRIns *ir, const void *p)
{
int32_t k;
#if !LJ_TARGET_X86ORX64
#error "Missing support for unaligned loads"
#endif
switch (irt_type(ir->t)) {
case IRT_NUM: return lj_ir_knum_u64(J, *(uint64_t *)p);
case IRT_I8: k = (int32_t)*(int8_t *)p; break;
case IRT_U8: k = (int32_t)*(uint8_t *)p; break;
case IRT_I16: k = (int32_t)*(int16_t *)p; break;
case IRT_U16: k = (int32_t)*(uint16_t *)p; break;
case IRT_INT: case IRT_U32: k = *(int32_t *)p; break;
case IRT_I16: k = (int32_t)(int16_t)lj_getu16(p); break;
case IRT_U16: k = (int32_t)(uint16_t)lj_getu16(p); break;
case IRT_INT: case IRT_U32: k = (int32_t)lj_getu32(p); break;
case IRT_I64: case IRT_U64: return lj_ir_kint64(J, *(uint64_t *)p);
default: return 0;
}