Blame SOURCES/8168318-pr3466-rh1498320.patch
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# HG changeset patch
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# User goetz
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# Date 1477563748 -7200
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# Thu Oct 27 12:22:28 2016 +0200
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# Node ID 9b9d9e11c04d5e5f64829d34752e5c94b1c7d911
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# Parent 92f0dbe76a13992cc27188e0f68e4b1771c7004a
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8168318, PR3466, RH1498320: PPC64: Use cmpldi instead of li/cmpld
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Reviewed-by: goetz
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Contributed-by: igor.nunes@eldorado.org.br
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diff --git a/src/cpu/ppc/vm/ppc.ad b/src/cpu/ppc/vm/ppc.ad
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--- openjdk/hotspot/src/cpu/ppc/vm/ppc.ad
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+++ openjdk/hotspot/src/cpu/ppc/vm/ppc.ad
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@@ -10571,6 +10571,17 @@
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ins_pipe(pipe_class_compare);
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%}
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+instruct cmpP_reg_null(flagsReg crx, iRegP_N2P src1, immP_0or1 src2) %{
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+ match(Set crx (CmpP src1 src2));
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+ format %{ "CMPLDI $crx, $src1, $src2 \t// ptr" %}
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+ size(4);
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+ ins_encode %{
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+ // TODO: PPC port $archOpcode(ppc64Opcode_cmpl);
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+ __ cmpldi($crx$$CondRegister, $src1$$Register, (int)((short)($src2$$constant & 0xFFFF)));
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+ %}
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+ ins_pipe(pipe_class_compare);
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+%}
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+
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// Used in postalloc expand.
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instruct cmpP_reg_imm16(flagsReg crx, iRegPsrc src1, immL16 src2) %{
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// This match rule prevents reordering of node before a safepoint.
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