[llvm] [AMDGPU][StructurizeCFG] Maintain branch MD_prof metadata (PR #109813)

[Shilei Tian via llvm-commits]

Juan Manuel Martinez =?utf-8?q?Caamaño?= <juamarti at amd.com>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/109813 at github.com>


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@@ -85,7 +87,46 @@ using PhiMap = MapVector<PHINode *, BBValueVector>;
 using BB2BBVecMap = MapVector<BasicBlock *, BBVector>;
 
 using BBPhiMap = DenseMap<BasicBlock *, PhiMap>;
-using BBPredicates = DenseMap<BasicBlock *, Value *>;
+
+using MaybeCondBranchWeights = std::optional<class CondBranchWeights>;
+
+class CondBranchWeights {
+  uint32_t TrueWeight;
+  uint32_t FalseWeight;
+
+public:
+  CondBranchWeights(unsigned T, unsigned F) : TrueWeight(T), FalseWeight(F) {}
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shiltian wrote:

You might want to put this into `private` if you don't want `CondBranchWeights` to be constructed w/o using `tryParse`.

https://github.com/llvm/llvm-project/pull/109813