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Make IR (only!) ready for LJ_GC64

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This commit is contained in:
Demi Obenour 2016-03-16 20:08:35 -04:00
parent ab398d66e1
commit ac7d3c4ec3
1 changed files with 23 additions and 18 deletions
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41
src/lj_ir.h
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@ -530,25 +530,30 @@ typedef uint32_t TRef;
typedef union IRIns { typedef union IRIns {
struct { struct {
LJ_ENDIAN_LOHI( #ifdef LJ_GC64
IRRef1 op1; /* IR operand 1. */ uint32_t padding; /* Ensures that gcr/ptr overlap with the proper fields */
, IRRef1 op2; /* IR operand 2. */ #endif
) struct {
IROpT ot; /* IR opcode and type (overlaps t and o). */ LJ_ENDIAN_LOHI(
IRRef1 prev; /* Previous ins in same chain (overlaps r and s). */ IRRef1 op1; /* IR operand 1. */
, IRRef1 op2; /* IR operand 2. */
)
IROpT ot; /* IR opcode and type (overlaps t and o). */
IRRef1 prev; /* Previous ins in same chain (overlaps r and s). */
};
struct {
IRRef2 op12; /* IR operand 1 and 2 (overlaps op1 and op2). */
LJ_ENDIAN_LOHI(
IRType1 t; /* IR type. */
, IROp1 o; /* IR opcode. */
)
LJ_ENDIAN_LOHI(
uint8_t r; /* Register allocation (overlaps prev). */
, uint8_t s; /* Spill slot allocation (overlaps prev). */
)
};
int32_t i; /* 32 bit signed integer literal (overlaps op12). */
}; };
struct {
IRRef2 op12; /* IR operand 1 and 2 (overlaps op1 and op2). */
LJ_ENDIAN_LOHI(
IRType1 t; /* IR type. */
, IROp1 o; /* IR opcode. */
)
LJ_ENDIAN_LOHI(
uint8_t r; /* Register allocation (overlaps prev). */
, uint8_t s; /* Spill slot allocation (overlaps prev). */
)
};
int32_t i; /* 32 bit signed integer literal (overlaps op12). */
GCRef gcr; /* GCobj constant (overlaps op12). */ GCRef gcr; /* GCobj constant (overlaps op12). */
MRef ptr; /* Pointer constant (overlaps op12). */ MRef ptr; /* Pointer constant (overlaps op12). */
} IRIns; } IRIns;