Mercurial > hg > graal-jvmci-8
comparison src/share/vm/opto/ifnode.cpp @ 12956:3213ba4d3dff
8024069: replace_in_map() should operate on parent maps
Summary: type information gets lost because replace_in_map() doesn't update parent maps
Reviewed-by: kvn, twisti
author | roland |
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date | Sat, 19 Oct 2013 12:16:43 +0200 |
parents | 46ef27bcacb3 |
children | de6a9e811145 |
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12955:252d541466ea | 12956:3213ba4d3dff |
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1017 | 1017 |
1018 // Loop predicates may have depending checks which should not | 1018 // Loop predicates may have depending checks which should not |
1019 // be skipped. For example, range check predicate has two checks | 1019 // be skipped. For example, range check predicate has two checks |
1020 // for lower and upper bounds. | 1020 // for lower and upper bounds. |
1021 ProjNode* unc_proj = proj_out(1 - prev_dom->as_Proj()->_con)->as_Proj(); | 1021 ProjNode* unc_proj = proj_out(1 - prev_dom->as_Proj()->_con)->as_Proj(); |
1022 if (PhaseIdealLoop::is_uncommon_trap_proj(unc_proj, Deoptimization::Reason_predicate)) | 1022 if (unc_proj->is_uncommon_trap_proj(Deoptimization::Reason_predicate)) |
1023 prev_dom = idom; | 1023 prev_dom = idom; |
1024 | 1024 |
1025 // Now walk the current IfNode's projections. | 1025 // Now walk the current IfNode's projections. |
1026 // Loop ends when 'this' has no more uses. | 1026 // Loop ends when 'this' has no more uses. |
1027 for (DUIterator_Last imin, i = last_outs(imin); i >= imin; --i) { | 1027 for (DUIterator_Last imin, i = last_outs(imin); i >= imin; --i) { |