Mercurial > hg > truffle
comparison src/share/vm/opto/cfgnode.cpp @ 400:cc80376deb0c
6667595: Set probability FAIR for pre-, post- loops and ALWAYS for main loop
Summary: Fix loop's probability. Add optimizations to avoid spilling. Change InlineSmallCode to product flag.
Reviewed-by: never
| author | kvn |
|---|---|
| date | Thu, 02 Oct 2008 08:37:44 -0700 |
| parents | 36ccc817fca4 |
| children | 35ae4dd6c27c |
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| 372:be41fa651400 | 400:cc80376deb0c |
|---|---|
| 1815 #endif | 1815 #endif |
| 1816 | 1816 |
| 1817 return progress; // Return any progress | 1817 return progress; // Return any progress |
| 1818 } | 1818 } |
| 1819 | 1819 |
| 1820 //------------------------------is_tripcount----------------------------------- | |
| 1821 bool PhiNode::is_tripcount() const { | |
| 1822 return (in(0) != NULL && in(0)->is_CountedLoop() && | |
| 1823 in(0)->as_CountedLoop()->phi() == this); | |
| 1824 } | |
| 1825 | |
| 1820 //------------------------------out_RegMask------------------------------------ | 1826 //------------------------------out_RegMask------------------------------------ |
| 1821 const RegMask &PhiNode::in_RegMask(uint i) const { | 1827 const RegMask &PhiNode::in_RegMask(uint i) const { |
| 1822 return i ? out_RegMask() : RegMask::Empty; | 1828 return i ? out_RegMask() : RegMask::Empty; |
| 1823 } | 1829 } |
| 1824 | 1830 |
| 1830 } | 1836 } |
| 1831 | 1837 |
| 1832 #ifndef PRODUCT | 1838 #ifndef PRODUCT |
| 1833 void PhiNode::dump_spec(outputStream *st) const { | 1839 void PhiNode::dump_spec(outputStream *st) const { |
| 1834 TypeNode::dump_spec(st); | 1840 TypeNode::dump_spec(st); |
| 1835 if (in(0) != NULL && | 1841 if (is_tripcount()) { |
| 1836 in(0)->is_CountedLoop() && | |
| 1837 in(0)->as_CountedLoop()->phi() == this) { | |
| 1838 st->print(" #tripcount"); | 1842 st->print(" #tripcount"); |
| 1839 } | 1843 } |
| 1840 } | 1844 } |
| 1841 #endif | 1845 #endif |
| 1842 | 1846 |