[LoopFlatten] Do not report CFG analyses as up-to-date

Yevgeny Rouban · Yevgeny Rouban · commit 1ed53d44d8e9 · 2021-04-01T15:52:36.000+07:00
Removes CFGAnalyses from the preserved analyses set returned by LoopFlattenPass::run(). Reviewed By: Dave Green, Ta-Wei Tu Differential Revision: https://reviews.llvm.org/D99700
diff --git a/llvm/lib/Transforms/Scalar/LoopFlatten.cpp b/llvm/lib/Transforms/Scalar/LoopFlatten.cpp
@@ -682,9 +682,7 @@ PreservedAnalyses LoopFlattenPass::run(Function &F,
   if (!Flatten(DT, LI, SE, AC, TTI))
     return PreservedAnalyses::all();
 
-  PreservedAnalyses PA;
-  PA.preserveSet<CFGAnalyses>();
-  return PA;
+  return PreservedAnalyses::none();
 }
 
 namespace {

Original file line number	Diff line number	Diff line change
`@@ -682,9 +682,7 @@ PreservedAnalyses LoopFlattenPass::run(Function &F,`
`682`	`682`	`if (!Flatten(DT, LI, SE, AC, TTI))`
`683`	`683`	`return PreservedAnalyses::all();`
`684`	`684`
`685`		`- PreservedAnalyses PA;`
`686`		`- PA.preserveSet<CFGAnalyses>();`
`687`		`- return PA;`
	`685`	`+ return PreservedAnalyses::none();`
`688`	`686`	`}`
`689`	`687`
`690`	`688`	`namespace {`