mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 04:30:12 +00:00
[Hexagon] Adding V4 bit manipulating instructions, removing ALU defs without encoding bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225199 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Colin LeMahieu
parent
c8e734a561
commit
27494b0633
@ -31,6 +31,13 @@ let isCodeGenOnly = 1 in {
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def A4_ext_g : T_Immext<globaladdress>;
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}
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def BITPOS32 : SDNodeXForm<imm, [{
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// Return the bit position we will set [0-31].
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// As an SDNode.
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int32_t imm = N->getSExtValue();
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return XformMskToBitPosU5Imm(imm);
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}]>;
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// Fold (add (CONST32 tglobaladdr:$addr) <offset>) into a global address.
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def FoldGlobalAddr : ComplexPattern<i32, 1, "foldGlobalAddress", [], []>;
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@ -1874,257 +1881,6 @@ def S4_or_andi : T_CompOR <"and", 0b00, and>;
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let CextOpcode = "ORr_ORr", isCodeGenOnly = 0 in
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def S4_or_ori : T_CompOR <"or", 0b10, or>;
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// Add and accumulate.
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// Rd=add(Rs,add(Ru,#s6))
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let isExtendable = 1, opExtendable = 3, isExtentSigned = 1, opExtentBits = 6,
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validSubTargets = HasV4SubT in
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def ADDr_ADDri_V4 : MInst<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs:$src2, s6Ext:$src3),
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"$dst = add($src1, add($src2, #$src3))",
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[(set (i32 IntRegs:$dst),
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(add (i32 IntRegs:$src1), (add (i32 IntRegs:$src2),
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s6_16ExtPred:$src3)))]>,
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Requires<[HasV4T]>;
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// Rd=add(Rs,sub(#s6,Ru))
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let isExtendable = 1, opExtendable = 2, isExtentSigned = 1, opExtentBits = 6,
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validSubTargets = HasV4SubT in
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def ADDr_SUBri_V4 : MInst<(outs IntRegs:$dst),
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(ins IntRegs:$src1, s6Ext:$src2, IntRegs:$src3),
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"$dst = add($src1, sub(#$src2, $src3))",
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[(set (i32 IntRegs:$dst),
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(add (i32 IntRegs:$src1), (sub s6_10ExtPred:$src2,
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(i32 IntRegs:$src3))))]>,
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Requires<[HasV4T]>;
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// Generates the same instruction as ADDr_SUBri_V4 but matches different
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// pattern.
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// Rd=add(Rs,sub(#s6,Ru))
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let isExtendable = 1, opExtendable = 2, isExtentSigned = 1, opExtentBits = 6,
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validSubTargets = HasV4SubT in
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def ADDri_SUBr_V4 : MInst<(outs IntRegs:$dst),
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(ins IntRegs:$src1, s6Ext:$src2, IntRegs:$src3),
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"$dst = add($src1, sub(#$src2, $src3))",
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[(set (i32 IntRegs:$dst),
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(sub (add (i32 IntRegs:$src1), s6_10ExtPred:$src2),
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(i32 IntRegs:$src3)))]>,
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Requires<[HasV4T]>;
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// Add or subtract doublewords with carry.
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//TODO:
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// Rdd=add(Rss,Rtt,Px):carry
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//TODO:
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// Rdd=sub(Rss,Rtt,Px):carry
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// Logical doublewords.
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// Rdd=and(Rtt,~Rss)
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let validSubTargets = HasV4SubT in
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def ANDd_NOTd_V4 : MInst<(outs DoubleRegs:$dst),
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(ins DoubleRegs:$src1, DoubleRegs:$src2),
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"$dst = and($src1, ~$src2)",
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[(set (i64 DoubleRegs:$dst), (and (i64 DoubleRegs:$src1),
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(not (i64 DoubleRegs:$src2))))]>,
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Requires<[HasV4T]>;
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// Rdd=or(Rtt,~Rss)
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let validSubTargets = HasV4SubT in
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def ORd_NOTd_V4 : MInst<(outs DoubleRegs:$dst),
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(ins DoubleRegs:$src1, DoubleRegs:$src2),
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"$dst = or($src1, ~$src2)",
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[(set (i64 DoubleRegs:$dst),
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(or (i64 DoubleRegs:$src1), (not (i64 DoubleRegs:$src2))))]>,
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Requires<[HasV4T]>;
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// Logical-logical doublewords.
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// Rxx^=xor(Rss,Rtt)
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let validSubTargets = HasV4SubT in
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def XORd_XORdd: MInst_acc<(outs DoubleRegs:$dst),
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(ins DoubleRegs:$src1, DoubleRegs:$src2, DoubleRegs:$src3),
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"$dst ^= xor($src2, $src3)",
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[(set (i64 DoubleRegs:$dst),
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(xor (i64 DoubleRegs:$src1), (xor (i64 DoubleRegs:$src2),
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(i64 DoubleRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Logical-logical words.
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// Rx=or(Ru,and(Rx,#s10))
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let isExtendable = 1, opExtendable = 3, isExtentSigned = 1, opExtentBits = 10,
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validSubTargets = HasV4SubT in
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def ORr_ANDri_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, s10Ext:$src3),
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"$dst = or($src1, and($src2, #$src3))",
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[(set (i32 IntRegs:$dst),
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(or (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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s10ExtPred:$src3)))],
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"$src2 = $dst">,
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Requires<[HasV4T]>;
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// Rx[&|^]=and(Rs,Rt)
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// Rx&=and(Rs,Rt)
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let validSubTargets = HasV4SubT in
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def ANDr_ANDrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst &= and($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(and (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx|=and(Rs,Rt)
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let validSubTargets = HasV4SubT, CextOpcode = "ORr_ANDr", InputType = "reg" in
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def ORr_ANDrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst |= and($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(or (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>, ImmRegRel;
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// Rx^=and(Rs,Rt)
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let validSubTargets = HasV4SubT in
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def XORr_ANDrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst ^= and($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(xor (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx[&|^]=and(Rs,~Rt)
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// Rx&=and(Rs,~Rt)
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let validSubTargets = HasV4SubT in
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def ANDr_ANDr_NOTr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst &= and($src2, ~$src3)",
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[(set (i32 IntRegs:$dst),
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(and (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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(not (i32 IntRegs:$src3)))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx|=and(Rs,~Rt)
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let validSubTargets = HasV4SubT in
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def ORr_ANDr_NOTr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst |= and($src2, ~$src3)",
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[(set (i32 IntRegs:$dst),
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(or (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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(not (i32 IntRegs:$src3)))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx^=and(Rs,~Rt)
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let validSubTargets = HasV4SubT in
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def XORr_ANDr_NOTr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst ^= and($src2, ~$src3)",
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[(set (i32 IntRegs:$dst),
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(xor (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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(not (i32 IntRegs:$src3)))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx[&|^]=or(Rs,Rt)
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// Rx&=or(Rs,Rt)
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let validSubTargets = HasV4SubT in
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def ANDr_ORrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst &= or($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(and (i32 IntRegs:$src1), (or (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx|=or(Rs,Rt)
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let validSubTargets = HasV4SubT, CextOpcode = "ORr_ORr", InputType = "reg" in
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def ORr_ORrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst |= or($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(or (i32 IntRegs:$src1), (or (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>, ImmRegRel;
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// Rx^=or(Rs,Rt)
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let validSubTargets = HasV4SubT in
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def XORr_ORrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst ^= or($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(xor (i32 IntRegs:$src1), (or (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx[&|^]=xor(Rs,Rt)
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// Rx&=xor(Rs,Rt)
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let validSubTargets = HasV4SubT in
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def ANDr_XORrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst &= xor($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(and (i32 IntRegs:$src1), (xor (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx|=xor(Rs,Rt)
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let validSubTargets = HasV4SubT in
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def ORr_XORrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst |= xor($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(and (i32 IntRegs:$src1), (xor (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx^=xor(Rs,Rt)
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let validSubTargets = HasV4SubT in
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def XORr_XORrr_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, IntRegs:$src3),
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"$dst ^= xor($src2, $src3)",
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[(set (i32 IntRegs:$dst),
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(and (i32 IntRegs:$src1), (xor (i32 IntRegs:$src2),
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(i32 IntRegs:$src3))))],
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"$src1 = $dst">,
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Requires<[HasV4T]>;
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// Rx|=and(Rs,#s10)
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let isExtendable = 1, opExtendable = 3, isExtentSigned = 1, opExtentBits = 10,
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validSubTargets = HasV4SubT, CextOpcode = "ORr_ANDr", InputType = "imm" in
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def ORr_ANDri2_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, s10Ext:$src3),
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"$dst |= and($src2, #$src3)",
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[(set (i32 IntRegs:$dst),
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(or (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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s10ExtPred:$src3)))],
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"$src1 = $dst">,
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Requires<[HasV4T]>, ImmRegRel;
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// Rx|=or(Rs,#s10)
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let isExtendable = 1, opExtendable = 3, isExtentSigned = 1, opExtentBits = 10,
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validSubTargets = HasV4SubT, CextOpcode = "ORr_ORr", InputType = "imm" in
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def ORr_ORri_V4 : MInst_acc<(outs IntRegs:$dst),
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(ins IntRegs:$src1, IntRegs: $src2, s10Ext:$src3),
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"$dst |= or($src2, #$src3)",
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[(set (i32 IntRegs:$dst),
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(or (i32 IntRegs:$src1), (and (i32 IntRegs:$src2),
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s10ExtPred:$src3)))],
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"$src1 = $dst">,
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Requires<[HasV4T]>, ImmRegRel;
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// Modulo wrap
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// Rd=modwrap(Rs,Rt)
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// Round
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@ -2162,6 +1918,103 @@ def ORr_ORri_V4 : MInst_acc<(outs IntRegs:$dst),
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// XTYPE/ALU -
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// XTYPE/BIT +
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//===----------------------------------------------------------------------===//
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// Bit reverse
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let isCodeGenOnly = 0 in
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def S2_brevp : T_S2op_3 <"brev", 0b11, 0b110>;
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// Bit count
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let isCodeGenOnly = 0 in {
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def S2_ct0p : T_COUNT_LEADING_64<"ct0", 0b111, 0b010>;
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def S2_ct1p : T_COUNT_LEADING_64<"ct1", 0b111, 0b100>;
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def S4_clbpnorm : T_COUNT_LEADING_64<"normamt", 0b011, 0b000>;
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}
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def: Pat<(i32 (trunc (cttz (i64 DoubleRegs:$Rss)))),
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(S2_ct0p (i64 DoubleRegs:$Rss))>;
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def: Pat<(i32 (trunc (cttz (not (i64 DoubleRegs:$Rss))))),
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(S2_ct1p (i64 DoubleRegs:$Rss))>;
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let hasSideEffects = 0, hasNewValue = 1, isCodeGenOnly = 0 in
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def S4_clbaddi : SInst<(outs IntRegs:$Rd), (ins IntRegs:$Rs, s6Imm:$s6),
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"$Rd = add(clb($Rs), #$s6)", [], "", S_2op_tc_2_SLOT23> {
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bits<5> Rs;
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bits<5> Rd;
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bits<6> s6;
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let IClass = 0b1000;
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let Inst{27-24} = 0b1100;
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let Inst{23-21} = 0b001;
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let Inst{20-16} = Rs;
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let Inst{13-8} = s6;
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let Inst{7-5} = 0b000;
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let Inst{4-0} = Rd;
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}
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let hasSideEffects = 0, hasNewValue = 1, isCodeGenOnly = 0 in
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def S4_clbpaddi : SInst<(outs IntRegs:$Rd), (ins DoubleRegs:$Rs, s6Imm:$s6),
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"$Rd = add(clb($Rs), #$s6)", [], "", S_2op_tc_2_SLOT23> {
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bits<5> Rs;
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bits<5> Rd;
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bits<6> s6;
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let IClass = 0b1000;
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let Inst{27-24} = 0b1000;
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let Inst{23-21} = 0b011;
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let Inst{20-16} = Rs;
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let Inst{13-8} = s6;
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let Inst{7-5} = 0b010;
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let Inst{4-0} = Rd;
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}
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// Bit test/set/clear
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let isCodeGenOnly = 0 in {
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def S4_ntstbit_i : T_TEST_BIT_IMM<"!tstbit", 0b001>;
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def S4_ntstbit_r : T_TEST_BIT_REG<"!tstbit", 1>;
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}
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let AddedComplexity = 20 in { // Complexity greater than cmp reg-imm.
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def: Pat<(i1 (seteq (and (shl 1, u5ImmPred:$u5), (i32 IntRegs:$Rs)), 0)),
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(S4_ntstbit_i (i32 IntRegs:$Rs), u5ImmPred:$u5)>;
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def: Pat<(i1 (seteq (and (shl 1, (i32 IntRegs:$Rt)), (i32 IntRegs:$Rs)), 0)),
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(S4_ntstbit_r (i32 IntRegs:$Rs), (i32 IntRegs:$Rt))>;
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}
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// Add extra complexity to prefer these instructions over bitsset/bitsclr.
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// The reason is that tstbit/ntstbit can be folded into a compound instruction:
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// if ([!]tstbit(...)) jump ...
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let AddedComplexity = 100 in
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def: Pat<(i1 (setne (and (i32 IntRegs:$Rs), (i32 Set5ImmPred:$u5)), (i32 0))),
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(S2_tstbit_i (i32 IntRegs:$Rs), (BITPOS32 Set5ImmPred:$u5))>;
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let AddedComplexity = 100 in
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def: Pat<(i1 (seteq (and (i32 IntRegs:$Rs), (i32 Set5ImmPred:$u5)), (i32 0))),
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(S4_ntstbit_i (i32 IntRegs:$Rs), (BITPOS32 Set5ImmPred:$u5))>;
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let isCodeGenOnly = 0 in {
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def C4_nbitsset : T_TEST_BITS_REG<"!bitsset", 0b01, 1>;
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def C4_nbitsclr : T_TEST_BITS_REG<"!bitsclr", 0b10, 1>;
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def C4_nbitsclri : T_TEST_BITS_IMM<"!bitsclr", 0b10, 1>;
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}
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|
||||
// Do not increase complexity of these patterns. In the DAG, "cmp i8" may be
|
||||
// represented as a compare against "value & 0xFF", which is an exact match
|
||||
// for cmpb (same for cmph). The patterns below do not contain any additional
|
||||
// complexity that would make them preferable, and if they were actually used
|
||||
// instead of cmpb/cmph, they would result in a compare against register that
|
||||
// is loaded with the byte/half mask (i.e. 0xFF or 0xFFFF).
|
||||
def: Pat<(i1 (setne (and I32:$Rs, u6ImmPred:$u6), 0)),
|
||||
(C4_nbitsclri I32:$Rs, u6ImmPred:$u6)>;
|
||||
def: Pat<(i1 (setne (and I32:$Rs, I32:$Rt), 0)),
|
||||
(C4_nbitsclr I32:$Rs, I32:$Rt)>;
|
||||
def: Pat<(i1 (setne (and I32:$Rs, I32:$Rt), I32:$Rt)),
|
||||
(C4_nbitsset I32:$Rs, I32:$Rt)>;
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// XTYPE/BIT -
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
//===----------------------------------------------------------------------===//
|
||||
// XTYPE/MPY +
|
||||
|
||||
@ -6,6 +6,12 @@
|
||||
# CHECK: r17 = cl0(r21:20)
|
||||
0x91 0xc0 0x54 0x88
|
||||
# CHECK: r17 = cl1(r21:20)
|
||||
0x11 0xc0 0x74 0x88
|
||||
# CHECK: r17 = normamt(r21:20)
|
||||
0x51 0xd7 0x74 0x88
|
||||
# CHECK: r17 = add(clb(r21:20), #23)
|
||||
0x11 0xd7 0x35 0x8c
|
||||
# CHECK: r17 = add(clb(r21), #23)
|
||||
0x91 0xc0 0x15 0x8c
|
||||
# CHECK: r17 = clb(r21)
|
||||
0xb1 0xc0 0x15 0x8c
|
||||
@ -14,6 +20,10 @@
|
||||
# CHECK: r17 = cl1(r21)
|
||||
0xf1 0xc0 0x15 0x8c
|
||||
# CHECK: r17 = normamt(r21)
|
||||
0x51 0xc0 0xf4 0x88
|
||||
# CHECK: r17 = ct0(r21:20)
|
||||
0x91 0xc0 0xf4 0x88
|
||||
# CHECK: r17 = ct1(r21:20)
|
||||
0x91 0xc0 0x55 0x8c
|
||||
# CHECK: r17 = ct0(r21)
|
||||
0xb1 0xc0 0x55 0x8c
|
||||
@ -52,6 +62,8 @@
|
||||
# CHECK: r17 = parity(r21:20, r31:30)
|
||||
0x11 0xdf 0xf5 0xd5
|
||||
# CHECK: r17 = parity(r21, r31)
|
||||
0xd0 0xc0 0xd4 0x80
|
||||
# CHECK: r17:16 = brev(r21:20)
|
||||
0x11 0xdf 0xd5 0x8c
|
||||
# CHECK: r17 = setbit(r21, #31)
|
||||
0x31 0xdf 0xd5 0x8c
|
||||
|
||||
@ -32,10 +32,16 @@
|
||||
# CHECK: p3 = cmp.gtu(r21:20, r31:30)
|
||||
0x03 0xd5 0x91 0x85
|
||||
# CHECK: p3 = bitsclr(r17, #21)
|
||||
0x03 0xd5 0xb1 0x85
|
||||
# CHECK: p3 = !bitsclr(r17, #21)
|
||||
0x03 0xd5 0x51 0xc7
|
||||
# CHECK: p3 = bitsset(r17, r21)
|
||||
0x03 0xd5 0x71 0xc7
|
||||
# CHECK: p3 = !bitsset(r17, r21)
|
||||
0x03 0xd5 0x91 0xc7
|
||||
# CHECK: p3 = bitsclr(r17, r21)
|
||||
0x03 0xd5 0xb1 0xc7
|
||||
# CHECK: p3 = !bitsclr(r17, r21)
|
||||
0x10 0xc3 0x00 0x86
|
||||
# CHECK: r17:16 = mask(p3)
|
||||
0x03 0xc0 0x45 0x85
|
||||
@ -44,7 +50,11 @@
|
||||
# CHECK: r5 = p3
|
||||
0x03 0xd5 0x11 0x85
|
||||
# CHECK: p3 = tstbit(r17, #21)
|
||||
0x03 0xd5 0x31 0x85
|
||||
# CHECK: p3 = !tstbit(r17, #21)
|
||||
0x03 0xd5 0x11 0xc7
|
||||
# CHECK: p3 = tstbit(r17, r21)
|
||||
0x03 0xd5 0x31 0xc7
|
||||
# CHECK: p3 = !tstbit(r17, r21)
|
||||
0x11 0xc2 0x03 0x89
|
||||
# CHECK: r17 = vitpack(p3, p2)
|
||||
Loading…
Reference in New Issue
Block a user