Mercurial > hg > truffle
diff src/cpu/x86/vm/assembler_x86.hpp @ 642:660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
Summary: Use zero based compressed oops if java heap is below 32gb and unscaled compressed oops if java heap is below 4gb.
Reviewed-by: never, twisti, jcoomes, coleenp
author | kvn |
---|---|
date | Thu, 12 Mar 2009 10:37:46 -0700 |
parents | 337400e7a5dd |
children | c771b7f43bbf |
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--- a/src/cpu/x86/vm/assembler_x86.hpp Wed Mar 11 14:16:13 2009 -0700 +++ b/src/cpu/x86/vm/assembler_x86.hpp Thu Mar 12 10:37:46 2009 -0700 @@ -578,20 +578,25 @@ // These are all easily abused and hence protected - void mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec, int format = 0); - // 32BIT ONLY SECTION #ifndef _LP64 // Make these disappear in 64bit mode since they would never be correct void cmp_literal32(Register src1, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY void cmp_literal32(Address src1, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY + void mov_literal32(Register dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY void mov_literal32(Address dst, int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY void push_literal32(int32_t imm32, RelocationHolder const& rspec); // 32BIT ONLY #else // 64BIT ONLY SECTION void mov_literal64(Register dst, intptr_t imm64, RelocationHolder const& rspec); // 64BIT ONLY + + void cmp_narrow_oop(Register src1, int32_t imm32, RelocationHolder const& rspec); + void cmp_narrow_oop(Address src1, int32_t imm32, RelocationHolder const& rspec); + + void mov_narrow_oop(Register dst, int32_t imm32, RelocationHolder const& rspec); + void mov_narrow_oop(Address dst, int32_t imm32, RelocationHolder const& rspec); #endif // _LP64 // These are unique in that we are ensured by the caller that the 32bit @@ -1647,6 +1652,9 @@ void decode_heap_oop_not_null(Register dst, Register src); void set_narrow_oop(Register dst, jobject obj); + void set_narrow_oop(Address dst, jobject obj); + void cmp_narrow_oop(Register dst, jobject obj); + void cmp_narrow_oop(Address dst, jobject obj); // if heap base register is used - reinit it with the correct value void reinit_heapbase();