Mercurial > hg > openjdk > jdk9 > hotspot
changeset 12769:1f917785fbe7
8180511: Null pointer dereference in Matcher::ReduceInst()
Summary: Fixed a missing null check on the return value of MachNodeGenerator() found by Parfait.
Reviewed-by: kvn
author | thartmann |
---|---|
date | Mon, 22 May 2017 09:17:32 +0200 |
parents | 0b218e675429 |
children | 286c8e80795b |
files | src/share/vm/opto/matcher.cpp |
diffstat | 1 files changed, 1 insertions(+), 0 deletions(-) [+] |
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--- a/src/share/vm/opto/matcher.cpp Mon May 22 09:16:46 2017 +0200 +++ b/src/share/vm/opto/matcher.cpp Mon May 22 09:17:32 2017 +0200 @@ -1645,6 +1645,7 @@ // Build the object to represent this state & prepare for recursive calls MachNode *mach = s->MachNodeGenerator(rule); + guarantee(mach != NULL, "Missing MachNode"); mach->_opnds[0] = s->MachOperGenerator(_reduceOp[rule]); assert( mach->_opnds[0] != NULL, "Missing result operand" ); Node *leaf = s->_leaf;