Mercurial > hg > truffle
diff src/cpu/sparc/vm/assembler_sparc.hpp @ 3892:baf763f388e6
7059037: Use BIS for zeroing on T4
Summary: Use BIS for zeroing new allocated big (2Kb and more) objects and arrays.
Reviewed-by: never, twisti, ysr
| author | kvn |
|---|---|
| date | Fri, 26 Aug 2011 08:52:22 -0700 |
| parents | 1af104d6cf99 |
| children | d968f546734e |
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--- a/src/cpu/sparc/vm/assembler_sparc.hpp Thu Aug 25 20:29:30 2011 -0700 +++ b/src/cpu/sparc/vm/assembler_sparc.hpp Fri Aug 26 08:52:22 2011 -0700 @@ -885,8 +885,9 @@ } enum ASIs { // page 72, v9 - ASI_PRIMARY = 0x80, - ASI_PRIMARY_LITTLE = 0x88, + ASI_PRIMARY = 0x80, + ASI_PRIMARY_NOFAULT = 0x82, + ASI_PRIMARY_LITTLE = 0x88, // Block initializing store ASI_ST_BLKINIT_PRIMARY = 0xE2, // Most-Recently-Used (MRU) BIS variant @@ -1786,9 +1787,12 @@ rs1(s) | op3(wrreg_op3) | u_field(2, 29, 25) | - u_field(1, 13, 13) | + immed(true) | simm(simm13a, 13)); } - inline void wrasi( Register d) { v9_only(); emit_long( op(arith_op) | rs1(d) | op3(wrreg_op3) | u_field(3, 29, 25)); } + inline void wrasi(Register d) { v9_only(); emit_long( op(arith_op) | rs1(d) | op3(wrreg_op3) | u_field(3, 29, 25)); } + // wrasi(d, imm) stores (d xor imm) to asi + inline void wrasi(Register d, int simm13a) { v9_only(); emit_long( op(arith_op) | rs1(d) | op3(wrreg_op3) | + u_field(3, 29, 25) | immed(true) | simm(simm13a, 13)); } inline void wrfprs( Register d) { v9_only(); emit_long( op(arith_op) | rs1(d) | op3(wrreg_op3) | u_field(6, 29, 25)); } @@ -2631,6 +2635,8 @@ void char_arrays_equals(Register ary1, Register ary2, Register limit, Register result, Register chr1, Register chr2, Label& Ldone); + // Use BIS for zeroing + void bis_zeroing(Register to, Register count, Register temp, Label& Ldone); #undef VIRTUAL