archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-21 11:34:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6802499: EA: assert(false,"unknown node on this path")

Browse source 
Add missing checks for SCMemProj node in Escape analysis code.

Reviewed-by: never
This commit is contained in:
Vladimir Kozlov 2009-02-19 17:38:53 -08:00
parent 73e8e582ba
commit dc3008a513
2 changed files with 26 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

16
hotspot/src/share/vm/opto/macro.cpp
View file

@ -250,6 +250,15 @@ static Node *scan_mem_chain(Node *mem, int alias_idx, int offset, Node *start_me
assert(adr_idx == Compile::AliasIdxRaw, "address must match or be raw");
}
mem = mem->in(MemNode::Memory);
} else if (mem->Opcode() == Op_SCMemProj) {
assert(mem->in(0)->is_LoadStore(), "sanity");
const TypePtr* atype = mem->in(0)->in(MemNode::Address)->bottom_type()->is_ptr();
int adr_idx = Compile::current()->get_alias_index(atype);
if (adr_idx == alias_idx) {
assert(false, "Object is not scalar replaceable if a LoadStore node access its field");
return NULL;
}
mem = mem->in(0)->in(MemNode::Memory);
} else {
return mem;
}
@ -329,8 +338,15 @@ Node *PhaseMacroExpand::value_from_mem_phi(Node *mem, BasicType ft, const Type *
return NULL;
}
values.at_put(j, val);
} else if (val->Opcode() == Op_SCMemProj) {
assert(val->in(0)->is_LoadStore(), "sanity");
assert(false, "Object is not scalar replaceable if a LoadStore node access its field");
return NULL;
} else {
#ifdef ASSERT
val->dump();
assert(false, "unknown node on this path");
#endif
return NULL; // unknown node on this path
}
}