Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/c1/c1_LinearScan.cpp
src/share/vm/c1/c1_LinearScan.cpp
- changeset 1
- 2d8a650513c2
- parent 0
- f90c822e73f8
- child 6876
- 710a3c8b516e
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| 0:f90c822e73f8 | 1:2d8a650513c2 |
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| 20 * or visit www.oracle.com if you need additional information or have any | 20 * or visit www.oracle.com if you need additional information or have any |
| 21 * questions. | 21 * questions. |
| 22 * | 22 * |
| 23 */ | 23 */ |
| 24 | 24 |
| 25 /* | |
| 26 * This file has been modified by Loongson Technology in 2015. These | |
| 27 * modifications are Copyright (c) 2015 Loongson Technology, and are made | |
| 28 * available on the same license terms set forth above. | |
| 29 */ | |
| 30 | |
| 25 #include "precompiled.hpp" | 31 #include "precompiled.hpp" |
| 26 #include "c1/c1_CFGPrinter.hpp" | 32 #include "c1/c1_CFGPrinter.hpp" |
| 27 #include "c1/c1_CodeStubs.hpp" | 33 #include "c1/c1_CodeStubs.hpp" |
| 28 #include "c1/c1_Compilation.hpp" | 34 #include "c1/c1_Compilation.hpp" |
| 29 #include "c1/c1_FrameMap.hpp" | 35 #include "c1/c1_FrameMap.hpp" |
| 32 #include "c1/c1_LinearScan.hpp" | 38 #include "c1/c1_LinearScan.hpp" |
| 33 #include "c1/c1_ValueStack.hpp" | 39 #include "c1/c1_ValueStack.hpp" |
| 34 #include "utilities/bitMap.inline.hpp" | 40 #include "utilities/bitMap.inline.hpp" |
| 35 #ifdef TARGET_ARCH_x86 | 41 #ifdef TARGET_ARCH_x86 |
| 36 # include "vmreg_x86.inline.hpp" | 42 # include "vmreg_x86.inline.hpp" |
| 43 #endif | |
| 44 #ifdef TARGET_ARCH_mips | |
| 45 # include "vmreg_mips.inline.hpp" | |
| 37 #endif | 46 #endif |
| 38 #ifdef TARGET_ARCH_sparc | 47 #ifdef TARGET_ARCH_sparc |
| 39 # include "vmreg_sparc.inline.hpp" | 48 # include "vmreg_sparc.inline.hpp" |
| 40 #endif | 49 #endif |
| 41 #ifdef TARGET_ARCH_zero | 50 #ifdef TARGET_ARCH_zero |
| 6226 assert(prev_op->as_OpBranch() != NULL, "branch must be of type LIR_OpBranch"); | 6235 assert(prev_op->as_OpBranch() != NULL, "branch must be of type LIR_OpBranch"); |
| 6227 LIR_OpBranch* prev_branch = (LIR_OpBranch*)prev_op; | 6236 LIR_OpBranch* prev_branch = (LIR_OpBranch*)prev_op; |
| 6228 | 6237 |
| 6229 if (prev_branch->stub() == NULL) { | 6238 if (prev_branch->stub() == NULL) { |
| 6230 | 6239 |
| 6240 #ifndef MIPS64 //MIPS64 not support lir_cmp. same as openjdk6. | |
| 6231 LIR_Op2* prev_cmp = NULL; | 6241 LIR_Op2* prev_cmp = NULL; |
| 6232 | 6242 |
| 6233 for(int j = instructions->length() - 3; j >= 0 && prev_cmp == NULL; j--) { | 6243 for(int j = instructions->length() - 3; j >= 0 && prev_cmp == NULL; j--) { |
| 6234 prev_op = instructions->at(j); | 6244 prev_op = instructions->at(j); |
| 6235 if (prev_op->code() == lir_cmp) { | 6245 if (prev_op->code() == lir_cmp) { |
| 6237 prev_cmp = (LIR_Op2*)prev_op; | 6247 prev_cmp = (LIR_Op2*)prev_op; |
| 6238 assert(prev_branch->cond() == prev_cmp->condition(), "should be the same"); | 6248 assert(prev_branch->cond() == prev_cmp->condition(), "should be the same"); |
| 6239 } | 6249 } |
| 6240 } | 6250 } |
| 6241 assert(prev_cmp != NULL, "should have found comp instruction for branch"); | 6251 assert(prev_cmp != NULL, "should have found comp instruction for branch"); |
| 6252 #endif | |
| 6242 if (prev_branch->block() == code->at(i + 1) && prev_branch->info() == NULL) { | 6253 if (prev_branch->block() == code->at(i + 1) && prev_branch->info() == NULL) { |
| 6243 | 6254 |
| 6244 TRACE_LINEAR_SCAN(3, tty->print_cr("Negating conditional branch and deleting unconditional branch at end of block B%d", block->block_id())); | 6255 TRACE_LINEAR_SCAN(3, tty->print_cr("Negating conditional branch and deleting unconditional branch at end of block B%d", block->block_id())); |
| 6245 | 6256 |
| 6246 // eliminate a conditional branch to the immediate successor | 6257 // eliminate a conditional branch to the immediate successor |
| 6247 prev_branch->change_block(last_branch->block()); | 6258 prev_branch->change_block(last_branch->block()); |
| 6248 prev_branch->negate_cond(); | 6259 prev_branch->negate_cond(); |
| 6260 #ifndef MIPS64 //MIPS64 not support lir_cmp. same as openjdk6. | |
| 6249 prev_cmp->set_condition(prev_branch->cond()); | 6261 prev_cmp->set_condition(prev_branch->cond()); |
| 6262 #endif | |
| 6250 instructions->truncate(instructions->length() - 1); | 6263 instructions->truncate(instructions->length() - 1); |
| 6251 } | 6264 } |
| 6252 } | 6265 } |
| 6253 } | 6266 } |
| 6254 } | 6267 } |
| 6552 ShouldNotReachHere(); | 6565 ShouldNotReachHere(); |
| 6553 } | 6566 } |
| 6554 break; | 6567 break; |
| 6555 } | 6568 } |
| 6556 | 6569 |
| 6570 #ifndef MIPS64 | |
| 6557 case lir_cmp: inc_counter(counter_cmp); break; | 6571 case lir_cmp: inc_counter(counter_cmp); break; |
| 6558 | 6572 |
| 6573 #endif | |
| 6559 case lir_branch: | 6574 case lir_branch: |
| 6560 case lir_cond_float_branch: { | 6575 case lir_cond_float_branch: { |
| 6561 LIR_OpBranch* branch = op->as_OpBranch(); | 6576 LIR_OpBranch* branch = op->as_OpBranch(); |
| 6562 if (branch->block() == NULL) { | 6577 if (branch->block() == NULL) { |
| 6563 inc_counter(counter_stub_branch); | 6578 inc_counter(counter_stub_branch); |
