Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/sparc/vm/macroAssembler_sparc.cpp
src/cpu/sparc/vm/macroAssembler_sparc.cpp
- changeset 8944
- 072770c9a6b9
- parent 8940
- eb9e617d6f64
- child 8997
- f8a45a60bc6b
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| 8943:c5ff0a4b9532 | 8944:072770c9a6b9 |
|---|---|
| 4259 // Use BIS for zeroing (count is in bytes). | 4259 // Use BIS for zeroing (count is in bytes). |
| 4260 void MacroAssembler::bis_zeroing(Register to, Register count, Register temp, Label& Ldone) { | 4260 void MacroAssembler::bis_zeroing(Register to, Register count, Register temp, Label& Ldone) { |
| 4261 assert(UseBlockZeroing && VM_Version::has_block_zeroing(), "only works with BIS zeroing"); | 4261 assert(UseBlockZeroing && VM_Version::has_block_zeroing(), "only works with BIS zeroing"); |
| 4262 Register end = count; | 4262 Register end = count; |
| 4263 int cache_line_size = VM_Version::prefetch_data_size(); | 4263 int cache_line_size = VM_Version::prefetch_data_size(); |
| 4264 assert(cache_line_size > 0, "cache line size should be known for this code"); | |
| 4264 // Minimum count when BIS zeroing can be used since | 4265 // Minimum count when BIS zeroing can be used since |
| 4265 // it needs membar which is expensive. | 4266 // it needs membar which is expensive. |
| 4266 int block_zero_size = MAX2(cache_line_size*3, (int)BlockZeroingLowLimit); | 4267 int block_zero_size = MAX2(cache_line_size*3, (int)BlockZeroingLowLimit); |
| 4267 | 4268 |
| 4268 Label small_loop; | 4269 Label small_loop; |
