[PATCH] D24701: [ThinLTO] Ensure anonymous globals renamed even at -O0
Teresa Johnson via llvm-commits
llvm-commits at lists.llvm.org
Sat Sep 17 13:49:05 PDT 2016
This revision was automatically updated to reflect the committed changes.
Closed by commit rL281840: [ThinLTO] Ensure anonymous globals renamed even at -O0 (authored by tejohnson).
Changed prior to commit:
https://reviews.llvm.org/D24701?vs=71738&id=71739#toc
Repository:
rL LLVM
https://reviews.llvm.org/D24701
Files:
llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp
llvm/trunk/test/Transforms/NameAnonGlobals/rename.ll
Index: llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp
===================================================================
--- llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ llvm/trunk/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -112,6 +112,10 @@
"enable-loop-load-elim", cl::init(true), cl::Hidden,
cl::desc("Enable the LoopLoadElimination Pass"));
+static cl::opt<bool>
+ EnablePrepareForThinLTO("prepare-for-thinlto", cl::init(false), cl::Hidden,
+ cl::desc("Enable preparation for ThinLTO."));
+
static cl::opt<bool> RunPGOInstrGen(
"profile-generate", cl::init(false), cl::Hidden,
cl::desc("Enable PGO instrumentation."));
@@ -163,7 +167,7 @@
EnablePGOInstrGen = RunPGOInstrGen;
PGOInstrGen = PGOOutputFile;
PGOInstrUse = RunPGOInstrUse;
- PrepareForThinLTO = false;
+ PrepareForThinLTO = EnablePrepareForThinLTO;
PerformThinLTO = false;
}
@@ -395,6 +399,10 @@
else if (!GlobalExtensions->empty() || !Extensions.empty())
MPM.add(createBarrierNoopPass());
+ if (PrepareForThinLTO)
+ // Rename anon globals to be able to export them in the summary.
+ MPM.add(createNameAnonGlobalPass());
+
addExtensionsToPM(EP_EnabledOnOptLevel0, MPM);
return;
}
Index: llvm/trunk/test/Transforms/NameAnonGlobals/rename.ll
===================================================================
--- llvm/trunk/test/Transforms/NameAnonGlobals/rename.ll
+++ llvm/trunk/test/Transforms/NameAnonGlobals/rename.ll
@@ -1,4 +1,5 @@
; RUN: opt -S -name-anon-globals < %s | FileCheck %s
+; RUN: opt -prepare-for-thinlto -O0 -module-summary -o %t.bc < %s
; foo contribute to the unique hash for the module
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