[llvm] r317665 - [CGP] Enable extending scope of optimizeMemoryInst

[Serguei Katkov via llvm-commits]

Author: skatkov
Date: Tue Nov  7 21:02:51 2017
New Revision: 317665

URL: http://llvm.org/viewvc/llvm-project?rev=317665&view=rev
Log:
[CGP] Enable extending scope of optimizeMemoryInst

This patch enables the folding of address computation in
memory instruction in case adress is represented by Phi node.

The inputs of Phi node might be different in base register.

Differential Revision: https://reviews.llvm.org/D36073

Modified:
    llvm/trunk/lib/CodeGen/CodeGenPrepare.cpp

Modified: llvm/trunk/lib/CodeGen/CodeGenPrepare.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/CodeGenPrepare.cpp?rev=317665&r1=317664&r2=317665&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/CodeGenPrepare.cpp (original)
+++ llvm/trunk/lib/CodeGen/CodeGenPrepare.cpp Tue Nov  7 21:02:51 2017
@@ -190,7 +190,7 @@ EnableTypePromotionMerge("cgp-type-promo
     " the other."), cl::init(true));
 
 static cl::opt<bool> DisableComplexAddrModes(
-    "disable-complex-addr-modes", cl::Hidden, cl::init(true),
+    "disable-complex-addr-modes", cl::Hidden, cl::init(false),
     cl::desc("Disables combining addressing modes with different parts "
              "in optimizeMemoryInst."));