37 lines
1.5 KiB
Diff
37 lines
1.5 KiB
Diff
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From 32271b8bfd2325ebb0d7fd338f3454be7dd1f998 Mon Sep 17 00:00:00 2001
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Date: Fri, 30 Oct 2020 18:15:32 +0800
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Subject: [PATCH] 8250861: Crash in MinINode::Ideal(PhaseGVN*, bool)
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Summary: C2: Added missing NULL checks.
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LLT: N/A
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Bug url: https://bugs.openjdk.java.net/browse/JDK-8250861
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---
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hotspot/src/share/vm/opto/addnode.cpp | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/hotspot/src/share/vm/opto/addnode.cpp b/hotspot/src/share/vm/opto/addnode.cpp
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index 7bfa6e404..61b376e9b 100644
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--- a/hotspot/src/share/vm/opto/addnode.cpp
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+++ b/hotspot/src/share/vm/opto/addnode.cpp
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@@ -921,7 +921,7 @@ Node *MinINode::Ideal(PhaseGVN *phase, bool can_reshape) {
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// Transform MIN2(x + c0, MIN2(x + c1, z)) into MIN2(x + MIN2(c0, c1), z)
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// if x == y and the additions can't overflow.
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- if (phase->eqv(x,y) &&
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+ if (phase->eqv(x,y) && tx != NULL &&
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!can_overflow(tx, x_off) &&
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!can_overflow(tx, y_off)) {
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return new (phase->C) MinINode(phase->transform(new (phase->C) AddINode(x, phase->intcon(MIN2(x_off, y_off)))), r->in(2));
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@@ -929,7 +929,7 @@ Node *MinINode::Ideal(PhaseGVN *phase, bool can_reshape) {
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} else {
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// Transform MIN2(x + c0, y + c1) into x + MIN2(c0, c1)
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// if x == y and the additions can't overflow.
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- if (phase->eqv(x,y) &&
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+ if (phase->eqv(x,y) && tx != NULL &&
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!can_overflow(tx, x_off) &&
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!can_overflow(tx, y_off)) {
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return new (phase->C) AddINode(x,phase->intcon(MIN2(x_off,y_off)));
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--
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2.12.3
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