hg: jdk9/hs-comp/hotspot: 8031743: C2: loadI2L_immI broken for negative memory values

[igor.veresov at oracle.com]

Changeset: 7e8bd81ce93e
Author:    iveresov
Date:      2014-01-21 20:05 -0800
URL:       http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/7e8bd81ce93e

8031743: C2: loadI2L_immI broken for negative memory values
Summary: Restrict loadI2L_imm optimizations to positive values of mask
Reviewed-by: kvn, dlong

! src/cpu/sparc/vm/sparc.ad
! src/cpu/x86/vm/x86_32.ad
! src/cpu/x86/vm/x86_64.ad
+ test/compiler/codegen/LoadWithMask2.java