[llvm] c40ce0d - [ORC] Add an early out for MachOPlatform's init-scraper plugin setup.

[Lang Hames via llvm-commits]

Author: Lang Hames
Date: 2020-09-01T20:12:23-07:00
New Revision: c40ce0da7189bd2ada15725a79525da13a67f3e4

URL: https://github.com/llvm/llvm-project/commit/c40ce0da7189bd2ada15725a79525da13a67f3e4
DIFF: https://github.com/llvm/llvm-project/commit/c40ce0da7189bd2ada15725a79525da13a67f3e4.diff

LOG: [ORC] Add an early out for MachOPlatform's init-scraper plugin setup.

If there's no initializer symbol in the current MaterializationResponsibility
then bail out without installing JITLink passes: they're going to be no-ops
anyway.

Added: 
    

Modified: 
    llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp

Removed: 
    


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diff  --git a/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp b/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp
index 9ad2577d4174..098e870c7118 100644
--- a/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp
@@ -299,6 +299,9 @@ void MachOPlatform::InitScraperPlugin::modifyPassConfig(
     MaterializationResponsibility &MR, const Triple &TT,
     jitlink::PassConfiguration &Config) {
 
+  if (!MR.getInitializerSymbol())
+    return;
+
   Config.PrePrunePasses.push_back([this, &MR](jitlink::LinkGraph &G) -> Error {
     JITLinkSymbolVector InitSectionSymbols;
     preserveInitSectionIfPresent(InitSectionSymbols, G, "__mod_init_func");