diff options
Diffstat (limited to 'include/llvm/Analysis/CGSCCPassManager.h')
| -rw-r--r-- | include/llvm/Analysis/CGSCCPassManager.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/include/llvm/Analysis/CGSCCPassManager.h b/include/llvm/Analysis/CGSCCPassManager.h index a15a9e18c8153..32868cbecdcf0 100644 --- a/include/llvm/Analysis/CGSCCPassManager.h +++ b/include/llvm/Analysis/CGSCCPassManager.h @@ -577,12 +577,17 @@ public: // analyses will eventually occur when the module pass completes. PA.intersect(std::move(PassPA)); - // Update the call graph based on this function pass. This may also - // update the current SCC to point to a smaller, more refined SCC. - CurrentC = &updateCGAndAnalysisManagerForFunctionPass( - CG, *CurrentC, *N, AM, UR, DebugLogging); - assert(CG.lookupSCC(*N) == CurrentC && - "Current SCC not updated to the SCC containing the current node!"); + // If the call graph hasn't been preserved, update it based on this + // function pass. This may also update the current SCC to point to + // a smaller, more refined SCC. + auto PAC = PA.getChecker<LazyCallGraphAnalysis>(); + if (!PAC.preserved() && !PAC.preservedSet<AllAnalysesOn<Module>>()) { + CurrentC = &updateCGAndAnalysisManagerForFunctionPass( + CG, *CurrentC, *N, AM, UR, DebugLogging); + assert( + CG.lookupSCC(*N) == CurrentC && + "Current SCC not updated to the SCC containing the current node!"); + } } // By definition we preserve the proxy. And we preserve all analyses on |