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Embed 64 bit constants directly in the IR, using two slots.

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Contributed by Peter Cawley.
This commit is contained in:
Mike Pall
2016-05-23 00:25:29 +02:00
parent a4067978b6
commit 7fb75ccc4c
17 changed files with 105 additions and 60 deletions
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15
src/lj_ir.h
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@@ -522,7 +522,9 @@ typedef uint32_t TRef;
** +-------+-------+---+---+---+---+
** | op1 | op2 | t | o | r | s |
** +-------+-------+---+---+---+---+
** | op12/i/gco | ot | prev | (alternative fields in union)
** | op12/i/gco32 | ot | prev | (alternative fields in union)
** +-------+-------+---+---+---+---+
** | TValue/gco64 | (2nd IR slot for 64 bit constants)
** +---------------+-------+-------+
** 32 16 16
**
@@ -550,8 +552,9 @@ typedef union IRIns {
)
};
int32_t i; /* 32 bit signed integer literal (overlaps op12). */
GCRef gcr; /* GCobj constant (overlaps op12). */
MRef ptr; /* Pointer constant (overlaps op12). */
GCRef gcr; /* GCobj constant (overlaps op12 or entire slot). */
MRef ptr; /* Pointer constant (overlaps op12 or entire slot). */
TValue tv; /* TValue constant (overlaps entire slot). */
} IRIns;
/* TODO_GC64: major changes required. */
@@ -560,10 +563,10 @@ typedef union IRIns {
#define ir_ktab(ir) (gco2tab(ir_kgc((ir))))
#define ir_kfunc(ir) (gco2func(ir_kgc((ir))))
#define ir_kcdata(ir) (gco2cd(ir_kgc((ir))))
#define ir_knum(ir) check_exp((ir)->o == IR_KNUM, mref((ir)->ptr, cTValue))
#define ir_kint64(ir) check_exp((ir)->o == IR_KINT64, mref((ir)->ptr,cTValue))
#define ir_knum(ir) check_exp((ir)->o == IR_KNUM, &(ir)[1].tv)
#define ir_kint64(ir) check_exp((ir)->o == IR_KINT64, &(ir)[1].tv)
#define ir_k64(ir) \
check_exp((ir)->o == IR_KNUM || (ir)->o == IR_KINT64, mref((ir)->ptr,cTValue))
check_exp((ir)->o == IR_KNUM || (ir)->o == IR_KINT64, &(ir)[1].tv)
#define ir_kptr(ir) \
check_exp((ir)->o == IR_KPTR || (ir)->o == IR_KKPTR, mref((ir)->ptr, void))