Go to the source code of this file.
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| STATISTIC (NumConstantsHoisted, "Number of constants hoisted") |
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| STATISTIC (NumConstantsRebased, "Number of constants rebased") |
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| INITIALIZE_PASS_BEGIN (ConstantHoistingLegacyPass, "consthoist", "Constant Hoisting", false, false) INITIALIZE_PASS_END(ConstantHoistingLegacyPass |
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static void | findBestInsertionSet (DominatorTree &DT, BlockFrequencyInfo &BFI, BasicBlock *Entry, SetVector< BasicBlock * > &BBs) |
| Given BBs as input, find another set of BBs which collectively dominates BBs and have the minimal sum of frequencies. More...
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static Optional< APInt > | calculateOffsetDiff (const APInt &V1, const APInt &V2) |
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static bool | updateOperand (Instruction *Inst, unsigned Idx, Instruction *Mat) |
| Updates the operand at Idx in instruction Inst with the result of instruction Mat. More...
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◆ DEBUG_TYPE
#define DEBUG_TYPE "consthoist" |
◆ calculateOffsetDiff()
◆ findBestInsertionSet()
Given BBs
as input, find another set of BBs which collectively dominates BBs
and have the minimal sum of frequencies.
Return the BB set found in BBs
.
Definition at line 214 of file ConstantHoisting.cpp.
◆ INITIALIZE_PASS_BEGIN()
INITIALIZE_PASS_BEGIN |
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ConstantHoistingLegacyPass |
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"consthoist" |
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"Constant Hoisting" |
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false |
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false |
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◆ STATISTIC() [1/2]
STATISTIC |
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NumConstantsHoisted |
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"Number of constants hoisted" |
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◆ STATISTIC() [2/2]
STATISTIC |
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NumConstantsRebased |
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"Number of constants rebased" |
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◆ updateOperand()
Updates the operand at Idx in instruction Inst with the result of instruction Mat.
If the instruction is a PHI node then special handling for duplicate values form the same incoming basic block is required.
- Returns
- The update will always succeed, but the return value indicated if Mat was used for the update or not.
Definition at line 731 of file ConstantHoisting.cpp.
References i, and llvm::User::setOperand().
◆ consthoist
◆ ConstHoistGEP
◆ ConstHoistWithBlockFrequency
◆ false
◆ Hoisting
◆ MinNumOfDependentToRebase
cl::opt<unsigned> MinNumOfDependentToRebase("consthoist-min-num-to-rebase", cl::desc("Do not rebase if number of dependent constants of a Base is less " "than this number."), cl::init(0), cl::Hidden) |
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