blob: 436fa43a31dd480f3c43dcf824bf2d1b2a2a2da5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
//===- PromoteMemToReg.h - Promote Allocas to Scalars -----------*- C++ -*-===//
//
// This file exposes an interface to promote alloca instructions to SSA
// registers, by using the SSA construction algorithm.
//
//===----------------------------------------------------------------------===//
#ifndef TRANSFORMS_UTILS_PROMOTEMEMTOREG_H
#define TRANSFORMS_UTILS_PROMOTEMEMTOREG_H
class AllocaInst;
class DominanceFrontier;
class TargetData;
#include <vector>
/// isAllocaPromotable - Return true if this alloca is legal for promotion.
/// This is true if there are only loads and stores to the alloca...
///
bool isAllocaPromotable(const AllocaInst *AI, const TargetData &TD);
/// PromoteMemToReg - Promote the specified list of alloca instructions into
/// scalar registers, inserting PHI nodes as appropriate. This function makes
/// use of DominanceFrontier information. This function does not modify the CFG
/// of the function at all. All allocas must be from the same function.
///
void PromoteMemToReg(const std::vector<AllocaInst*> &Allocas,
DominanceFrontier &DF, const TargetData &TD);
#endif
|
