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| author | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-04-18 01:05:15 +0000 |
|---|---|---|
| committer | Duncan P. N. Exon Smith <dexonsmith@apple.com> | 2014-04-18 01:05:15 +0000 |
| commit | 49f3ec80c20f11b874c732307ea0788adf96c1ce (patch) | |
| tree | e1deb8da3e7bf7b6a11d239948a0b8ed21100f74 | |
| parent | 1aa6cb4d88c0a1c12b27e4096435b767eae01114 (diff) | |
| download | bcm5719-llvm-49f3ec80c20f11b874c732307ea0788adf96c1ce.tar.gz bcm5719-llvm-49f3ec80c20f11b874c732307ea0788adf96c1ce.zip | |
PMBuilder: Expose an option to disable tail calls
Adds API to allow frontends to disable tail calls in PassManagerBuilder.
<rdar://problem/16050591>
llvm-svn: 206542
| -rw-r--r-- | llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h | 1 | ||||
| -rw-r--r-- | llvm/lib/Transforms/IPO/PassManagerBuilder.cpp | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h b/llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h index 42b6b27d0ce..bfd58f11756 100644 --- a/llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h +++ b/llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h @@ -106,6 +106,7 @@ public: /// added to the per-module passes. Pass *Inliner; + bool DisableTailCalls; bool DisableUnitAtATime; bool DisableUnrollLoops; bool BBVectorize; diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp index 76f7c1098b0..052d24f58aa 100644 --- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -58,6 +58,7 @@ PassManagerBuilder::PassManagerBuilder() { SizeLevel = 0; LibraryInfo = 0; Inliner = 0; + DisableTailCalls = false; DisableUnitAtATime = false; DisableUnrollLoops = false; BBVectorize = RunBBVectorization; @@ -183,7 +184,8 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) { MPM.add(createCFGSimplificationPass()); // Merge & remove BBs MPM.add(createInstructionCombiningPass()); // Combine silly seq's - MPM.add(createTailCallEliminationPass()); // Eliminate tail calls + if (!DisableTailCalls) + MPM.add(createTailCallEliminationPass()); // Eliminate tail calls MPM.add(createCFGSimplificationPass()); // Merge & remove BBs MPM.add(createReassociatePass()); // Reassociate expressions MPM.add(createLoopRotatePass()); // Rotate Loop |
