From 743b98cd3d7db1cfd6b3d7f7795e8abd9d07a42d Mon Sep 17 00:00:00 2001
From: Vladimir Marko <vmarko@google.com>
Date: Mon, 24 Nov 2014 19:45:41 +0000
Subject: Skip null check in MarkGCCard() for known non-null values.

Use GVN's knowledge of non-null values to set a new MIR flag
for IPUT/SPUT/APUT to skip the value null check.

Change-Id: I97a8d1447acb530c9bbbf7b362add366d1486ee1
---
 compiler/dex/compiler_enums.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'compiler/dex/compiler_enums.h')

diff --git a/compiler/dex/compiler_enums.h b/compiler/dex/compiler_enums.h
index b56fd6f5c7..4d377df09a 100644
--- a/compiler/dex/compiler_enums.h
+++ b/compiler/dex/compiler_enums.h
@@ -316,9 +316,8 @@ enum ExtendedMIROpcode {
 
 enum MIROptimizationFlagPositions {
   kMIRIgnoreNullCheck = 0,
-  kMIRNullCheckOnly,
   kMIRIgnoreRangeCheck,
-  kMIRRangeCheckOnly,
+  kMIRStoreNonNullValue,              // Storing non-null value, always mark GC card.
   kMIRClassIsInitialized,
   kMIRClassIsInDexCache,
   kMirIgnoreDivZeroCheck,
-- 
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