[llvm] r258127 - [WebAssembly] Disable some WebAssembly-specific optimization passes at -O0.

[Dan Gohman via llvm-commits]

Author: djg
Date: Tue Jan 19 08:55:02 2016
New Revision: 258127

URL: http://llvm.org/viewvc/llvm-project?rev=258127&view=rev
Log:
[WebAssembly] Disable some WebAssembly-specific optimization passes at -O0.

Modified:
    llvm/trunk/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp

Modified: llvm/trunk/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp?rev=258127&r1=258126&r2=258127&view=diff
==============================================================================
--- llvm/trunk/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp (original)
+++ llvm/trunk/lib/Target/WebAssembly/WebAssemblyTargetMachine.cpp Tue Jan 19 08:55:02 2016
@@ -140,7 +140,8 @@ void WebAssemblyPassConfig::addIRPasses(
     addPass(createAtomicExpandPass(TM));
 
   // Optimize "returned" function attributes.
-  addPass(createWebAssemblyOptimizeReturned());
+  if (getOptLevel() != CodeGenOpt::None)
+    addPass(createWebAssemblyOptimizeReturned());
 
   TargetPassConfig::addIRPasses();
 }
@@ -165,7 +166,8 @@ void WebAssemblyPassConfig::addPreRegAll
   TargetPassConfig::addPreRegAlloc();
 
   // Prepare store instructions for register stackifying.
-  addPass(createWebAssemblyStoreResults());
+  if (getOptLevel() != CodeGenOpt::None)
+    addPass(createWebAssemblyStoreResults());
 }
 
 void WebAssemblyPassConfig::addPostRegAlloc() {
@@ -206,5 +208,6 @@ void WebAssemblyPassConfig::addPreEmitPa
   addPass(createWebAssemblyRegNumbering());
 
   // Perform the very last peephole optimizations on the code.
-  addPass(createWebAssemblyPeephole());
+  if (getOptLevel() != CodeGenOpt::None)
+    addPass(createWebAssemblyPeephole());
 }