Mercurial > hg > truffle

diff src/cpu/sparc/vm/relocInfo_sparc.cpp @ 164:c436414a719e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6703890: Compressed Oops: add LoadNKlass node to generate narrow oops (32-bits) compare instructions Summary: Add LoadNKlass and CMoveN nodes, use CmpN and ConN nodes to generate narrow oops compare instructions. Reviewed-by: never, rasbold
author kvn
date Wed, 21 May 2008 13:46:23 -0700
parents a61af66fc99e
children d1605aabd0a1
line wrap: on
line diff
--- a/src/cpu/sparc/vm/relocInfo_sparc.cpp	Wed May 21 10:45:07 2008 -0700
+++ b/src/cpu/sparc/vm/relocInfo_sparc.cpp	Wed May 21 13:46:23 2008 -0700
@@ -87,6 +87,17 @@
 #ifdef _LP64
     jint inst2;
     guarantee(Assembler::inv_op2(inst)==Assembler::sethi_op2, "must be sethi");
+    if (format() != 0) {
+      assert(type() == relocInfo::oop_type, "only narrow oops case");
+      jint np = oopDesc::encode_heap_oop((oop)x);
+      inst &= ~Assembler::hi22(-1);
+      inst |=  Assembler::hi22((intptr_t)np);
+      ip->set_long_at(0, inst);
+      inst2 = ip->long_at( NativeInstruction::nop_instruction_size );
+      guarantee(Assembler::inv_op(inst2)==Assembler::arith_op, "arith op");
+      ip->set_long_at(NativeInstruction::nop_instruction_size, ip->set_data32_simm13( inst2, (intptr_t)np));
+      break;
+    }
     ip->set_data64_sethi( ip->addr_at(0), (intptr_t)x );
 #ifdef COMPILER2
     // [RGV] Someone must have missed putting in a reloc entry for the