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| author | Cliff Click <cliffc@acm.org> | 2024-07-26 14:56:40 +0300 |
|---|---|---|
| committer | Dibyendu Majumdar <dibyendumajumdar@users.noreply.github.com> | 2024-08-05 23:28:33 +0100 |
| commit | 5c48e9fde3185710892815af3adc992585486a24 (patch) | |
| tree | d69f4b33f96cdab0314ad98ef4e9fba9638aa701 /chapter12/src/main/java/com | |
| parent | aced58bb64ae52f82276ac48ff28737d54130223 (diff) | |
| download | Simple-5c48e9fde3185710892815af3adc992585486a24.tar.gz Simple-5c48e9fde3185710892815af3adc992585486a24.zip | |
missing null check
Diffstat (limited to 'chapter12/src/main/java/com')
| -rw-r--r-- | chapter12/src/main/java/com/seaofnodes/simple/node/PhiNode.java | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/chapter12/src/main/java/com/seaofnodes/simple/node/PhiNode.java b/chapter12/src/main/java/com/seaofnodes/simple/node/PhiNode.java index 535db980..ebed8dd1 100644 --- a/chapter12/src/main/java/com/seaofnodes/simple/node/PhiNode.java +++ b/chapter12/src/main/java/com/seaofnodes/simple/node/PhiNode.java @@ -103,7 +103,7 @@ public class PhiNode extends Node { if( region().idom(this) instanceof IfNode iff && iff.pred().addDep(this)==val ) { // Must walk the idom on the null side to make sure we hit False. CFGNode idom = (CFGNode)region().in(nullx); - while( idom.in(0) != iff ) idom = idom.idom(); + while( idom.nIns() > 0 && idom.in(0) != iff ) idom = idom.idom(); if( idom instanceof CProjNode proj && proj._idx==1 ) return val; } |