Blame SOURCES/8158260-pr2991-rh1341258.patch
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# HG changeset patch
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# User simonis
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# Date 1466155884 -7200
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# Fri Jun 17 11:31:24 2016 +0200
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# Node ID 74081c30fede694b547c8b3386b9887ff14e8775
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# Parent 3fc29347b27fdd2075e6ec6d80bb26ab2bf667c1
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8158260, PR2991, RH1341258: PPC64: unaligned Unsafe.getInt can lead to the generation of illegal instructions
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Summary: Adjust instruction generation.
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Reviewed-by: goetz
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Contributed-by: gromero@linux.vnet.ibm.com, horii@jp.ibm.com
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diff -r 3fc29347b27f -r 74081c30fede src/cpu/ppc/vm/ppc.ad
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--- openjdk/hotspot/src/cpu/ppc/vm/ppc.ad Fri May 20 19:42:15 2016 +0100
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+++ openjdk/hotspot/src/cpu/ppc/vm/ppc.ad Fri Jun 17 11:31:24 2016 +0200
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@@ -5461,7 +5461,7 @@
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%}
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// Match loading integer and casting it to long.
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-instruct loadI2L(iRegLdst dst, memory mem) %{
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+instruct loadI2L(iRegLdst dst, memoryAlg4 mem) %{
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match(Set dst (ConvI2L (LoadI mem)));
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predicate(_kids[0]->_leaf->as_Load()->is_unordered());
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ins_cost(MEMORY_REF_COST);
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@@ -5477,7 +5477,7 @@
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%}
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// Match loading integer and casting it to long - acquire.
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-instruct loadI2L_ac(iRegLdst dst, memory mem) %{
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+instruct loadI2L_ac(iRegLdst dst, memoryAlg4 mem) %{
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match(Set dst (ConvI2L (LoadI mem)));
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ins_cost(3*MEMORY_REF_COST);
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