a455c91601
Main thing I was unsure about was to whether try to delete the now dead landing blocks, or leave that for the unreachable block reduction. Personality function is not reduced, but that should be a separate reduction on the function. Fixes #58815
40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
//===- ReduceInvokes.cpp - Specialized Delta Pass -------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Try to replace invokes with calls.
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//
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//===----------------------------------------------------------------------===//
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#include "ReduceInvokes.h"
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#include "Delta.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/Transforms/Utils/Local.h"
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static void reduceInvokesInFunction(Oracle &O, Function &F) {
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for (BasicBlock &BB : F) {
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InvokeInst *Invoke = dyn_cast<InvokeInst>(BB.getTerminator());
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if (Invoke && !O.shouldKeep())
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changeToCall(Invoke);
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}
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// TODO: We most likely are leaving behind dead landingpad blocks. Should we
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// delete unreachable blocks now, or leave that for the unreachable block
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// reduction.
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}
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static void reduceInvokesInModule(Oracle &O, Module &Mod) {
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for (Function &F : Mod) {
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if (F.hasPersonalityFn())
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reduceInvokesInFunction(O, F);
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}
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}
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void llvm::reduceInvokesDeltaPass(TestRunner &Test) {
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runDeltaPass(Test, reduceInvokesInModule, "Reducing Invokes");
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}
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