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[Alignment][NFC] Change internal representation of TargetLowering.h

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Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790

Reviewers: courbet

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67226

llvm-svn: 371082
This commit is contained in:
Guillaume Chatelet 2019-09-05 15:44:33 +00:00
parent 1449d46262
commit 8f6dd9f264
2 changed files with 12 additions and 16 deletions
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24
include/llvm/CodeGen/TargetLowering.h
View File

@ -1578,22 +1578,22 @@ public:
/// Return the minimum stack alignment of an argument.
unsigned getMinStackArgumentAlignment() const {
return MinStackArgumentAlignment;
return MinStackArgumentAlignment.value();
}
/// Return the minimum function alignment.
unsigned getMinFunctionLogAlignment() const {
return MinFunctionLogAlignment;
return Log2(MinFunctionAlignment);
}
/// Return the preferred function alignment.
unsigned getPrefFunctionLogAlignment() const {
return PrefFunctionLogAlignment;
return Log2(PrefFunctionAlignment);
}
/// Return the preferred loop alignment.
virtual unsigned getPrefLoopLogAlignment(MachineLoop *ML = nullptr) const {
return PrefLoopLogAlignment;
return Log2(PrefLoopAlignment);
}
/// Should loops be aligned even when the function is marked OptSize (but not
@ -2106,14 +2106,14 @@ protected:
/// Set the target's minimum function alignment (in log2(bytes))
void setMinFunctionLogAlignment(unsigned LogAlign) {
MinFunctionLogAlignment = LogAlign;
MinFunctionAlignment = llvm::Align(1ULL << LogAlign);
}
/// Set the target's preferred function alignment. This should be set if
/// there is a performance benefit to higher-than-minimum alignment (in
/// log2(bytes))
void setPrefFunctionLogAlignment(unsigned LogAlign) {
PrefFunctionLogAlignment = LogAlign;
PrefFunctionAlignment = llvm::Align(1ULL << LogAlign);
}
/// Set the target's preferred loop alignment. Default alignment is zero, it
@ -2121,12 +2121,12 @@ protected:
/// specified in log2(bytes). The target may also override
/// getPrefLoopAlignment to provide per-loop values.
void setPrefLoopLogAlignment(unsigned LogAlign) {
PrefLoopLogAlignment = LogAlign;
PrefLoopAlignment = llvm::Align(1ULL << LogAlign);
}
/// Set the minimum stack alignment of an argument.
void setMinStackArgumentAlignment(unsigned Align) {
MinStackArgumentAlignment = Align;
MinStackArgumentAlignment = llvm::Align(Align);
}
/// Set the maximum atomic operation size supported by the
@ -2688,18 +2688,18 @@ private:
Sched::Preference SchedPreferenceInfo;
/// The minimum alignment that any argument on the stack needs to have.
unsigned MinStackArgumentAlignment;
llvm::Align MinStackArgumentAlignment;
/// The minimum function alignment (used when optimizing for size, and to
/// prevent explicitly provided alignment from leading to incorrect code).
unsigned MinFunctionLogAlignment;
llvm::Align MinFunctionAlignment;
/// The preferred function alignment (used when alignment unspecified and
/// optimizing for speed).
unsigned PrefFunctionLogAlignment;
llvm::Align PrefFunctionAlignment;
/// The preferred loop alignment (in log2 bot in bytes).
unsigned PrefLoopLogAlignment;
llvm::Align PrefLoopAlignment;
/// Size in bits of the maximum atomics size the backend supports.
/// Accesses larger than this will be expanded by AtomicExpandPass.

4
lib/CodeGen/TargetLoweringBase.cpp
View File

@ -583,11 +583,7 @@ TargetLoweringBase::TargetLoweringBase(const TargetMachine &tm) : TM(tm) {
BooleanFloatContents = UndefinedBooleanContent;
BooleanVectorContents = UndefinedBooleanContent;
SchedPreferenceInfo = Sched::ILP;
MinFunctionLogAlignment = 0;
PrefFunctionLogAlignment = 0;
PrefLoopLogAlignment = 0;
GatherAllAliasesMaxDepth = 18;
MinStackArgumentAlignment = 1;
// TODO: the default will be switched to 0 in the next commit, along
// with the Target-specific changes necessary.
MaxAtomicSizeInBitsSupported = 1024;