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6943304: remove tagged stack interpreter

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Reviewed-by: coleenp, never, gbenson
This commit is contained in:
Christian Thalinger 2010-04-30 08:37:24 -07:00
parent 55457c9cc7
commit 0211f9703a
51 changed files with 510 additions and 1891 deletions
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14
hotspot/src/cpu/sparc/vm/stubGenerator_sparc.cpp
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@ -139,7 +139,7 @@ class StubGenerator: public StubCodeGenerator {
__ ld_ptr(parameter_size.as_address(), t); // get parameter size (in words)
__ add(t, frame::memory_parameter_word_sp_offset, t); // add space for save area (in words)
__ round_to(t, WordsPerLong); // make sure it is multiple of 2 (in words)
__ sll(t, Interpreter::logStackElementSize(), t); // compute number of bytes
__ sll(t, Interpreter::logStackElementSize, t); // compute number of bytes
__ neg(t); // negate so it can be used with save
__ save(SP, t, SP); // setup new frame
}
@ -191,19 +191,13 @@ class StubGenerator: public StubCodeGenerator {
// copy parameters if any
Label loop;
__ BIND(loop);
// Store tag first.
if (TaggedStackInterpreter) {
__ ld_ptr(src, 0, tmp);
__ add(src, BytesPerWord, src); // get next
__ st_ptr(tmp, dst, Interpreter::tag_offset_in_bytes());
}
// Store parameter value
__ ld_ptr(src, 0, tmp);
__ add(src, BytesPerWord, src);
__ st_ptr(tmp, dst, Interpreter::value_offset_in_bytes());
__ st_ptr(tmp, dst, 0);
__ deccc(cnt);
__ br(Assembler::greater, false, Assembler::pt, loop);
__ delayed()->sub(dst, Interpreter::stackElementSize(), dst);
__ delayed()->sub(dst, Interpreter::stackElementSize, dst);
// done
__ BIND(exit);
@ -220,7 +214,7 @@ class StubGenerator: public StubCodeGenerator {
// setup parameters
const Register t = G3_scratch;
__ ld_ptr(parameter_size.as_in().as_address(), t); // get parameter size (in words)
__ sll(t, Interpreter::logStackElementSize(), t); // compute number of bytes
__ sll(t, Interpreter::logStackElementSize, t); // compute number of bytes
__ sub(FP, t, Gargs); // setup parameter pointer
#ifdef _LP64
__ add( Gargs, STACK_BIAS, Gargs ); // Account for LP64 stack bias