8150727: [JVMCI] add LoadLoad to the implicit memory barriers on AMD64
Reviewed-by: rschatz, twisti
Contributed-by: Benoit Daloze <benoit.daloze@jku.at>
--- a/hotspot/src/jdk.vm.ci/share/classes/jdk.vm.ci.amd64/src/jdk/vm/ci/amd64/AMD64.java Fri Feb 19 17:12:14 2016 +0800
+++ b/hotspot/src/jdk.vm.ci/share/classes/jdk.vm.ci.amd64/src/jdk/vm/ci/amd64/AMD64.java Fri Feb 26 13:21:28 2016 +0100
@@ -22,6 +22,7 @@
*/
package jdk.vm.ci.amd64;
+import static jdk.vm.ci.code.MemoryBarriers.LOAD_LOAD;
import static jdk.vm.ci.code.MemoryBarriers.LOAD_STORE;
import static jdk.vm.ci.code.MemoryBarriers.STORE_STORE;
import static jdk.vm.ci.code.Register.SPECIAL;
@@ -220,7 +221,7 @@
private final AMD64Kind largestKind;
public AMD64(EnumSet<CPUFeature> features, EnumSet<Flag> flags) {
- super("AMD64", AMD64Kind.QWORD, ByteOrder.LITTLE_ENDIAN, true, allRegisters, LOAD_STORE | STORE_STORE, 1, 8);
+ super("AMD64", AMD64Kind.QWORD, ByteOrder.LITTLE_ENDIAN, true, allRegisters, LOAD_LOAD | LOAD_STORE | STORE_STORE, 1, 8);
this.features = features;
this.flags = flags;
assert features.contains(CPUFeature.SSE2) : "minimum config for x64";