Mercurial > hg > graal-jvmci-8
changeset 320:2b73d212b1fd
6676462: JVM sometimes would suddenly consume significant amount of memory
Summary: Add asserts with dead loop checks in AddNode::Ideal().
Reviewed-by: never
author | kvn |
---|---|
date | Fri, 05 Sep 2008 13:33:55 -0700 |
parents | cdbee661c7da |
children | 6e7305abe64c |
files | src/share/vm/opto/addnode.cpp |
diffstat | 1 files changed, 2 insertions(+), 0 deletions(-) [+] |
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--- a/src/share/vm/opto/addnode.cpp Thu Sep 04 09:03:16 2008 -0700 +++ b/src/share/vm/opto/addnode.cpp Fri Sep 05 13:33:55 2008 -0700 @@ -157,6 +157,7 @@ Node *a12 = add1->in(2); const Type *t12 = phase->type( a12 ); if( t12->singleton() && t12 != Type::TOP && (add1 != add1->in(1)) ) { + assert(add1->in(1) != this, "dead loop in AddNode::Ideal"); add2 = add1->clone(); add2->set_req(2, in(2)); add2 = phase->transform(add2); @@ -173,6 +174,7 @@ Node *a22 = add2->in(2); const Type *t22 = phase->type( a22 ); if( t22->singleton() && t22 != Type::TOP && (add2 != add2->in(1)) ) { + assert(add2->in(1) != this, "dead loop in AddNode::Ideal"); Node *addx = add2->clone(); addx->set_req(1, in(1)); addx->set_req(2, add2->in(1));