forked from OSchip/llvm-project
Fix instruction encoding for "bd(n)z" on PowerPC,
by using a new instruction format BForm_1. llvm-svn: 167861
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84ee76acfe
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0117718580
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@ -234,10 +234,10 @@ def : Pat<(PPCtc_return CTRRC8:$dst, imm:$imm),
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let isBranch = 1, isTerminator = 1, hasCtrlDep = 1, PPC970_Unit = 7 in {
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let Defs = [CTR8], Uses = [CTR8] in {
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def BDZ8 : IForm_ext<16, 18, 0, 0, (outs), (ins condbrtarget:$dst),
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"bdz $dst", BrB, []>;
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def BDNZ8 : IForm_ext<16, 16, 0, 0, (outs), (ins condbrtarget:$dst),
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"bdnz $dst", BrB, []>;
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def BDZ8 : BForm_1<16, 18, 0, 0, (outs), (ins condbrtarget:$dst),
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"bdz $dst">;
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def BDNZ8 : BForm_1<16, 16, 0, 0, (outs), (ins condbrtarget:$dst),
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"bdnz $dst">;
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}
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}
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@ -94,12 +94,6 @@ class IForm<bits<6> opcode, bit aa, bit lk, dag OOL, dag IOL, string asmstr,
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let Inst{31} = lk;
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}
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class IForm_ext<bits<6> opcode, bits<5> bo, bit aa, bit lk, dag OOL, dag IOL,
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string asmstr, InstrItinClass itin, list<dag> pattern>
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: IForm<opcode, aa, lk, OOL, IOL, asmstr, itin, pattern> {
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let LI{0-4} = bo;
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}
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// 1.7.2 B-Form
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class BForm<bits<6> opcode, bit aa, bit lk, dag OOL, dag IOL, string asmstr>
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: I<opcode, OOL, IOL, asmstr, BrB> {
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@ -118,6 +112,13 @@ class BForm<bits<6> opcode, bit aa, bit lk, dag OOL, dag IOL, string asmstr>
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let Inst{31} = lk;
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}
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class BForm_1<bits<6> opcode, bits<5> bo, bit aa, bit lk, dag OOL, dag IOL,
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string asmstr>
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: BForm<opcode, aa, lk, OOL, IOL, asmstr> {
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let BIBO{4-0} = bo;
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let BIBO{6-5} = 0;
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let CR = 0;
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}
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// 1.7.4 D-Form
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class DForm_base<bits<6> opcode, dag OOL, dag IOL, string asmstr,
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@ -446,10 +446,10 @@ let isBranch = 1, isTerminator = 1, hasCtrlDep = 1, PPC970_Unit = 7 in {
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/*[(PPCcondbranch CRRC:$crS, imm:$opc, bb:$dst)]*/>;
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let Defs = [CTR], Uses = [CTR] in {
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def BDZ : IForm_ext<16, 18, 0, 0, (outs), (ins condbrtarget:$dst),
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"bdz $dst", BrB, []>;
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def BDNZ : IForm_ext<16, 16, 0, 0, (outs), (ins condbrtarget:$dst),
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"bdnz $dst", BrB, []>;
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def BDZ : BForm_1<16, 18, 0, 0, (outs), (ins condbrtarget:$dst),
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"bdz $dst">;
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def BDNZ : BForm_1<16, 16, 0, 0, (outs), (ins condbrtarget:$dst),
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"bdnz $dst">;
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}
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}
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