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FFI: Rename IR_CNEWP to IR_CNEWI and use it to box 64 bit integers.

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Generates smaller IR and DCE eliminates many intermediate boxes.
Needs allocation sinking to eliminate the boxes kept alive by PHIs.
This commit is contained in:
Mike Pall
2011-02-03 04:13:51 +01:00
parent 1027018b21
commit df65b8b419
5 changed files with 142 additions and 84 deletions
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10
src/lj_ir.h
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@@ -113,7 +113,7 @@
_(TNEW, AW, lit, lit) \
_(TDUP, AW, ref, ___) \
_(CNEW, AW, ref, ref) \
_(CNEWP, NW, ref, ref) /* CSE is ok, not marked as A. */ \
_(CNEWI, NW, ref, ref) /* CSE is ok, not marked as A. */ \
\
/* Write barriers. */ \
_(TBAR, S , ref, ___) \
@@ -188,7 +188,9 @@ IRFPMDEF(FPMENUM)
_(UDATA_UDTYPE, offsetof(GCudata, udtype)) \
_(UDATA_FILE, sizeof(GCudata)) \
_(CDATA_TYPEID, offsetof(GCcdata, typeid)) \
_(CDATA_PTR, sizeof(GCcdata))
_(CDATA_PTR, sizeof(GCcdata)) \
_(CDATA_INT64, sizeof(GCcdata)) \
_(CDATA_INT64HI, sizeof(GCcdata) + 4)
typedef enum {
#define FLENUM(name, ofs) IRFL_##name,
@@ -588,12 +590,12 @@ typedef union IRIns {
#define ir_kptr(ir) \
check_exp((ir)->o == IR_KPTR || (ir)->o == IR_KKPTR, mref((ir)->ptr, void))
LJ_STATIC_ASSERT((int)IRT_GUARD == (int)IRM_W);
/* A store or any other op with a non-weak guard has a side-effect. */
static LJ_AINLINE int ir_sideeff(IRIns *ir)
{
return (((ir->t.irt | ~IRT_GUARD) & lj_ir_mode[ir->o]) >= IRM_S);
}
LJ_STATIC_ASSERT((int)IRT_GUARD == (int)IRM_W);
#endif