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

6810845: Performance regression in mpegaudio on x64

Browse source 
Used the outer loop frequency in frequencies checks in RA.

Reviewed-by: never, twisti
This commit is contained in:
Vladimir Kozlov 2009-03-26 15:04:55 -07:00
parent 3b786f8edc
commit 68cf08d2c3
7 changed files with 30 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

5
hotspot/src/share/vm/opto/machnode.cpp
View file

@ -340,6 +340,10 @@ const class TypePtr *MachNode::adr_type() const {
if (base == NodeSentinel) return TypePtr::BOTTOM;
const Type* t = base->bottom_type();
if (UseCompressedOops && Universe::narrow_oop_shift() == 0) {
// 32-bit unscaled narrow oop can be the base of any address expression
t = t->make_ptr();
}
if (t->isa_intptr_t() && offset != 0 && offset != Type::OffsetBot) {
// We cannot assert that the offset does not look oop-ish here.
// Depending on the heap layout the cardmark base could land
@ -353,6 +357,7 @@ const class TypePtr *MachNode::adr_type() const {
// be conservative if we do not recognize the type
if (tp == NULL) {
assert(false, "this path may produce not optimal code");
return TypePtr::BOTTOM;
}
assert(tp->base() != Type::AnyPtr, "not a bare pointer");