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SDAG: Cleanup initialization of SDDbgValue, NFC

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Cleanup how `SDDbgValue` is initialized, and rearrange the fields to
save two pointers in the struct layout.  No real functionality change
though (and I doubt the memory savings would show up in a profile).

llvm-svn: 237997
This commit is contained in:
Duncan P. N. Exon Smith 2015-05-22 05:35:53 +00:00
parent 577f02eab7
commit 116c89859d
1 changed files with 7 additions and 9 deletions
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16
lib/CodeGen/SelectionDAG/SDNodeDbgValue.h
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@ -35,7 +35,6 @@ public:
FRAMEIX = 2 // value is contents of a stack location
};
private:
enum DbgValueKind kind;
union {
struct {
SDNode *Node; // valid for expressions
@ -46,17 +45,18 @@ private:
} u;
MDNode *Var;
MDNode *Expr;
bool IsIndirect;
uint64_t Offset;
DebugLoc DL;
unsigned Order;
bool Invalid;
enum DbgValueKind kind;
bool IsIndirect;
bool Invalid = false;
public:
// Constructor for non-constants.
SDDbgValue(MDNode *Var, MDNode *Expr, SDNode *N, unsigned R, bool indir,
uint64_t off, DebugLoc dl, unsigned O)
: Var(Var), Expr(Expr), IsIndirect(indir), Offset(off), DL(dl), Order(O),
Invalid(false) {
: Var(Var), Expr(Expr), Offset(off), DL(dl), Order(O), IsIndirect(indir) {
kind = SDNODE;
u.s.Node = N;
u.s.ResNo = R;
@ -65,8 +65,7 @@ public:
// Constructor for constants.
SDDbgValue(MDNode *Var, MDNode *Expr, const Value *C, uint64_t off,
DebugLoc dl, unsigned O)
: Var(Var), Expr(Expr), IsIndirect(false), Offset(off), DL(dl), Order(O),
Invalid(false) {
: Var(Var), Expr(Expr), Offset(off), DL(dl), Order(O), IsIndirect(false) {
kind = CONST;
u.Const = C;
}
@ -74,8 +73,7 @@ public:
// Constructor for frame indices.
SDDbgValue(MDNode *Var, MDNode *Expr, unsigned FI, uint64_t off, DebugLoc dl,
unsigned O)
: Var(Var), Expr(Expr), IsIndirect(false), Offset(off), DL(dl), Order(O),
Invalid(false) {
: Var(Var), Expr(Expr), Offset(off), DL(dl), Order(O), IsIndirect(false) {
kind = FRAMEIX;
u.FrameIx = FI;
}