Lines Matching +full:block +full:- +full:offset

1 //===-- ARMBasicBlockInfo.h - Basic Block Information -----------*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
9 // Utility functions and data structure for computing block size.
11 //===----------------------------------------------------------------------===//
27 /// UnknownPadding - Return the worst case padding that could result from
28 /// unknown offset bits.  This does not include alignment padding caused by
29 /// known offset bits.
32 /// @param KnownBits Number of known low offset bits.
35     return Alignment.value() - (1ull << KnownBits);  in UnknownPadding()
39 /// BasicBlockInfo - Information about the offset and size of a single
40 /// basic block.
42   /// Offset - Distance from the beginning of the function to the beginning
43   /// of this basic block.
46   /// block. This means that subtracting basic block offsets always gives a
49   /// Because worst case padding is used, the computed offset of an aligned
50   /// block may not actually be aligned.
51   unsigned Offset = 0;  member
53   /// Size - Size of the basic block in bytes.  If the block contains
57   /// beginning of the block, or from an aligned jump table at the end.
60   /// KnownBits - The number of low bits in Offset that are known to be
61   /// exact.  The remaining bits of Offset are an upper bound.
64   /// Unalign - When non-zero, the block contains instructions (inline asm)
69   /// PostAlign - When > 1, the block terminator contains a .align
70   /// directive, so the end of the block is aligned to PostAlign bytes.
75   /// Compute the number of known offset bits internally to this block.
77   /// splitting the block.
80     // If the block size isn't a multiple of the known bits, assume the  in internalKnownBits()
82     if (Size & ((1u << Bits) - 1))  in internalKnownBits()
87   /// Compute the offset immediately following this block.  If Align is
88   /// specified, return the offset the successor block will get if it has
91     unsigned PO = Offset + Size;
99   /// Compute the number of known low bits of postOffset.  If this block
103   /// If LogAlign is given, also consider the alignment of the next block.
121     isThumb = MF.getInfo<ARMFunctionInfo>()->isThumbFunction();  in ARMBasicBlockUtils()
135     return BBInfo[MBB->getNumber()].Offset;  in getOffsetOf()
141     BBInfo[MBB->getNumber()].Size += Size;  in adjustBBSize()