We have this snazzy link-time optimizer. How about we start using it? This
removes some cruft from 255.vortex, cleaning up after DAE and IPCP, which
do horrible, beautiful, things to vortex.
llvm-svn: 11861
diff --git a/llvm/tools/gccld/GenerateCode.cpp b/llvm/tools/gccld/GenerateCode.cpp
index 3277c48..982a7e3 100644
--- a/llvm/tools/gccld/GenerateCode.cpp
+++ b/llvm/tools/gccld/GenerateCode.cpp
@@ -111,6 +111,11 @@
if (!DisableInline)
addPass(Passes, createFunctionInliningPass()); // Inline small functions
+ // The IPO passes may leave cruft around. Clean up after them.
+ addPass(Passes, createInstructionCombiningPass());
+
+ addPass(Passes, createScalarReplAggregatesPass()); // Break up allocas
+
// Run a few AA driven optimizations here and now, to cleanup the code.
// Eventually we should put an IP AA in place here.
@@ -118,8 +123,7 @@
addPass(Passes, createLoadValueNumberingPass()); // GVN for load instrs
addPass(Passes, createGCSEPass()); // Remove common subexprs
- // The FuncResolve pass may leave cruft around if functions were prototyped
- // differently than they were defined. Remove this cruft.
+ // Cleanup and simplify the code after the scalar optimizations.
addPass(Passes, createInstructionCombiningPass());
// Delete basic blocks, which optimization passes may have killed...