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7006044: materialize cheap non-oop pointers on 64-bit SPARC

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After 6961690 we load non-oop pointers for the constant table which could easily be materialized in a few instructions.

Reviewed-by: never, kvn
This commit is contained in:
Christian Thalinger 2010-12-14 12:44:30 -08:00
parent a5f501c021
commit 0563626b3c
3 changed files with 82 additions and 39 deletions
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13
hotspot/src/cpu/sparc/vm/assembler_sparc.hpp
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@ -1884,23 +1884,24 @@ public:
void sethi(const AddressLiteral& addrlit, Register d);
void patchable_sethi(const AddressLiteral& addrlit, Register d);
// compute the size of a sethi/set
static int size_of_sethi( address a, bool worst_case = false );
static int worst_case_size_of_set();
// compute the number of instructions for a sethi/set
static int insts_for_sethi( address a, bool worst_case = false );
static int worst_case_insts_for_set();
// set may be either setsw or setuw (high 32 bits may be zero or sign)
private:
void internal_set(const AddressLiteral& al, Register d, bool ForceRelocatable);
static int insts_for_internal_set(intptr_t value);
public:
void set(const AddressLiteral& addrlit, Register d);
void set(intptr_t value, Register d);
void set(address addr, Register d, RelocationHolder const& rspec);
static int insts_for_set(intptr_t value) { return insts_for_internal_set(value); }
void patchable_set(const AddressLiteral& addrlit, Register d);
void patchable_set(intptr_t value, Register d);
void set64(jlong value, Register d, Register tmp);
// Compute size of set64.
static int size_of_set64(jlong value);
static int insts_for_set64(jlong value);
// sign-extend 32 to 64
inline void signx( Register s, Register d ) { sra( s, G0, d); }