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# HG changeset patch
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# User mdoerr
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# Date 1507752266 -3600
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# Wed Oct 11 21:04:26 2017 +0100
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# Node ID 5c00d5cd7677aec3549afe02e4f9de8dc7b20bef
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# Parent 3c499a0ba92b1affb3f473c6502e374f4785aba9
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8181810, PR3466, RH1498319: PPC64: Leverage extrdi for bitfield extract
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Reviewed-by: mdoerr, simonis
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Contributed-by: Matthew Brandyberry <mbrandy@linux.vnet.ibm.com>
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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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@@ -1,6 +1,6 @@
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//
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// Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
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-// Copyright 2012, 2014 SAP AG. All rights reserved.
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+// Copyright (c) 2012, 2017 SAP SE. All rights reserved.
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// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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//
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// This code is free software; you can redistribute it and/or modify it
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@@ -8610,6 +8610,44 @@
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ins_pipe(pipe_class_default);
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%}
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+// Bitfield Extract: URShiftI + AndI
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+instruct andI_urShiftI_regI_immI_immIpow2minus1(iRegIdst dst, iRegIsrc src1, immI src2, immIpow2minus1 src3) %{
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+ match(Set dst (AndI (URShiftI src1 src2) src3));
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+
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+ format %{ "EXTRDI $dst, $src1, shift=$src2, mask=$src3 \t// int bitfield extract" %}
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+ size(4);
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+ ins_encode %{
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+ // TODO: PPC port $archOpcode(ppc64Opcode_rldicl);
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+ int rshift = ($src2$$constant) & 0x1f;
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+ int length = log2_long(((jlong) $src3$$constant) + 1);
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+ if (rshift + length > 32) {
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+ // if necessary, adjust mask to omit rotated bits.
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+ length = 32 - rshift;
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+ }
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+ __ extrdi($dst$$Register, $src1$$Register, length, 64 - (rshift + length));
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+ %}
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+ ins_pipe(pipe_class_default);
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+%}
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+
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+// Bitfield Extract: URShiftL + AndL
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+instruct andL_urShiftL_regL_immI_immLpow2minus1(iRegLdst dst, iRegLsrc src1, immI src2, immLpow2minus1 src3) %{
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+ match(Set dst (AndL (URShiftL src1 src2) src3));
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+
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+ format %{ "EXTRDI $dst, $src1, shift=$src2, mask=$src3 \t// long bitfield extract" %}
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+ size(4);
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+ ins_encode %{
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+ // TODO: PPC port $archOpcode(ppc64Opcode_rldicl);
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+ int rshift = ($src2$$constant) & 0x3f;
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+ int length = log2_long(((jlong) $src3$$constant) + 1);
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+ if (rshift + length > 64) {
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+ // if necessary, adjust mask to omit rotated bits.
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+ length = 64 - rshift;
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+ }
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+ __ extrdi($dst$$Register, $src1$$Register, length, 64 - (rshift + length));
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+ %}
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+ ins_pipe(pipe_class_default);
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+%}
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+
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instruct sxtI_reg(iRegIdst dst, iRegIsrc src) %{
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match(Set dst (ConvL2I (ConvI2L src)));
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