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6985015: C1 needs to support compressed oops

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This change implements compressed oops for C1 for x64 and sparc. The changes are mostly on the codegen level, with a few exceptions when we do access things outside of the heap that are uncompressed from the IR. Compressed oops are now also enabled with tiered.

Reviewed-by: twisti, kvn, never, phh
This commit is contained in:
Igor Veresov 2010-11-30 23:23:40 -08:00
parent 8006fe8f75
commit d59d7ffc4a
30 changed files with 493 additions and 429 deletions
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8
hotspot/src/share/vm/c1/c1_FrameMap.hpp
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@ -76,8 +76,8 @@ class FrameMap : public CompilationResourceObj {
nof_cpu_regs_reg_alloc = pd_nof_cpu_regs_reg_alloc,
nof_fpu_regs_reg_alloc = pd_nof_fpu_regs_reg_alloc,
nof_caller_save_cpu_regs = pd_nof_caller_save_cpu_regs_frame_map,
nof_caller_save_fpu_regs = pd_nof_caller_save_fpu_regs_frame_map,
max_nof_caller_save_cpu_regs = pd_nof_caller_save_cpu_regs_frame_map,
nof_caller_save_fpu_regs = pd_nof_caller_save_fpu_regs_frame_map,
spill_slot_size_in_bytes = 4
};
@ -97,7 +97,7 @@ class FrameMap : public CompilationResourceObj {
static Register _cpu_rnr2reg [nof_cpu_regs];
static int _cpu_reg2rnr [nof_cpu_regs];
static LIR_Opr _caller_save_cpu_regs [nof_caller_save_cpu_regs];
static LIR_Opr _caller_save_cpu_regs [max_nof_caller_save_cpu_regs];
static LIR_Opr _caller_save_fpu_regs [nof_caller_save_fpu_regs];
int _framesize;
@ -243,7 +243,7 @@ class FrameMap : public CompilationResourceObj {
VMReg regname(LIR_Opr opr) const;
static LIR_Opr caller_save_cpu_reg_at(int i) {
assert(i >= 0 && i < nof_caller_save_cpu_regs, "out of bounds");
assert(i >= 0 && i < max_nof_caller_save_cpu_regs, "out of bounds");
return _caller_save_cpu_regs[i];
}