From aa641a51719eed9509566e8352bf59e75e2c81b4 Mon Sep 17 00:00:00 2001 From: Andrew Kaylor Date: Fri, 22 Apr 2016 22:06:11 +0000 Subject: Re-commit optimization bisect support (r267022) without new pass manager support. The original commit was reverted because of a buildbot problem with LazyCallGraph::SCC handling (not related to the OptBisect handling). Differential Revision: http://reviews.llvm.org/D19172 llvm-svn: 267231 --- llvm/lib/Analysis/LoopPass.cpp | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'llvm/lib/Analysis/LoopPass.cpp') diff --git a/llvm/lib/Analysis/LoopPass.cpp b/llvm/lib/Analysis/LoopPass.cpp index 8163231c332..3181e4f9921 100644 --- a/llvm/lib/Analysis/LoopPass.cpp +++ b/llvm/lib/Analysis/LoopPass.cpp @@ -16,6 +16,7 @@ #include "llvm/Analysis/LoopPass.h" #include "llvm/IR/IRPrintingPasses.h" #include "llvm/IR/LLVMContext.h" +#include "llvm/IR/OptBisect.h" #include "llvm/IR/PassManager.h" #include "llvm/Support/Debug.h" #include "llvm/Support/Timer.h" @@ -335,11 +336,16 @@ void LoopPass::assignPassManager(PMStack &PMS, LPPM->add(this); } -// Containing function has Attribute::OptimizeNone and transformation -// passes should skip it. -bool LoopPass::skipOptnoneFunction(const Loop *L) const { +bool LoopPass::skipLoop(const Loop *L) const { const Function *F = L->getHeader()->getParent(); - if (F && F->hasFnAttribute(Attribute::OptimizeNone)) { + if (!F) + return false; + // Check the opt bisect limit. + LLVMContext &Context = F->getContext(); + if (!Context.getOptBisect().shouldRunPass(this, *L)) + return true; + // Check for the OptimizeNone attribute. + if (F->hasFnAttribute(Attribute::OptimizeNone)) { // FIXME: Report this to dbgs() only once per function. DEBUG(dbgs() << "Skipping pass '" << getPassName() << "' in function " << F->getName() << "\n"); -- cgit v1.2.3