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Diffstat (limited to 'llvm/tools/llvm-mca/Support.h')
| -rw-r--r-- | llvm/tools/llvm-mca/Support.h | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/llvm/tools/llvm-mca/Support.h b/llvm/tools/llvm-mca/Support.h deleted file mode 100644 index fd8d8b5a23b..00000000000 --- a/llvm/tools/llvm-mca/Support.h +++ /dev/null @@ -1,58 +0,0 @@ -//===--------------------- Support.h ----------------------------*- C++ -*-===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -/// \file -/// -/// Helper functions used by various pipeline components. -/// -//===----------------------------------------------------------------------===// - -#ifndef LLVM_TOOLS_LLVM_MCA_SUPPORT_H -#define LLVM_TOOLS_LLVM_MCA_SUPPORT_H - -#include "llvm/ADT/ArrayRef.h" -#include "llvm/ADT/SmallVector.h" -#include "llvm/MC/MCSchedule.h" - -namespace mca { - -/// Populates vector Masks with processor resource masks. -/// -/// The number of bits set in a mask depends on the processor resource type. -/// Each processor resource mask has at least one bit set. For groups, the -/// number of bits set in the mask is equal to the cardinality of the group plus -/// one. Excluding the most significant bit, the remaining bits in the mask -/// identify processor resources that are part of the group. -/// -/// Example: -/// -/// ResourceA -- Mask: 0b001 -/// ResourceB -- Mask: 0b010 -/// ResourceAB -- Mask: 0b100 U (ResourceA::Mask | ResourceB::Mask) == 0b111 -/// -/// ResourceAB is a processor resource group containing ResourceA and ResourceB. -/// Each resource mask uniquely identifies a resource; both ResourceA and -/// ResourceB only have one bit set. -/// ResourceAB is a group; excluding the most significant bit in the mask, the -/// remaining bits identify the composition of the group. -/// -/// Resource masks are used by the ResourceManager to solve set membership -/// problems with simple bit manipulation operations. -void computeProcResourceMasks(const llvm::MCSchedModel &SM, - llvm::SmallVectorImpl<uint64_t> &Masks); - -/// Compute the reciprocal block throughput from a set of processor resource -/// cycles. The reciprocal block throughput is computed as the MAX between: -/// - NumMicroOps / DispatchWidth -/// - ProcResourceCycles / #ProcResourceUnits (for every consumed resource). -double computeBlockRThroughput(const llvm::MCSchedModel &SM, - unsigned DispatchWidth, unsigned NumMicroOps, - llvm::ArrayRef<unsigned> ProcResourceUsage); -} // namespace mca - -#endif |
