jlebar created this revision.
jlebar added a reviewer: chandlerc.
jlebar added subscribers: tra, cfe-commits, rnk.
As of D18614, TargetMachine exposes a hook to add a set of passes that should
be run as early as possible. Invoke this hook from clang when setting up the
pass manager.
http://reviews.llvm.org/D18617
Files:
lib/CodeGen/BackendUtil.cpp
Index: lib/CodeGen/BackendUtil.cpp
===================================================================
--- lib/CodeGen/BackendUtil.cpp
+++ lib/CodeGen/BackendUtil.cpp
@@ -340,6 +340,14 @@
return;
}
+ // Add target-specific passes that need to run as early as possible.
+ if (TM)
+ PMBuilder.addExtension(
+ PassManagerBuilder::EP_EarlyAsPossible,
+ [this](const PassManagerBuilder &, legacy::PassManagerBase &PM) {
+ TM->addEarlyAsPossiblePasses(PM);
+ });
+
PMBuilder.addExtension(PassManagerBuilder::EP_EarlyAsPossible,
addAddDiscriminatorsPass);
Index: lib/CodeGen/BackendUtil.cpp
===================================================================
--- lib/CodeGen/BackendUtil.cpp
+++ lib/CodeGen/BackendUtil.cpp
@@ -340,6 +340,14 @@
return;
}
+ // Add target-specific passes that need to run as early as possible.
+ if (TM)
+ PMBuilder.addExtension(
+ PassManagerBuilder::EP_EarlyAsPossible,
+ [this](const PassManagerBuilder &, legacy::PassManagerBase &PM) {
+ TM->addEarlyAsPossiblePasses(PM);
+ });
+
PMBuilder.addExtension(PassManagerBuilder::EP_EarlyAsPossible,
addAddDiscriminatorsPass);
_______________________________________________
cfe-commits mailing list
[email protected]
http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
