[Hexagon] Remove encoding bits from mapped instructions

- Map A2_zxtb to A2_andir.
- Map PS_call_nr J2_call.
- Map A2_tfr[t|f][new] to A2_padd[t|f][new].
    
Patch by Colin LeMahieu.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294320 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Krzysztof Parzyszek 2017-02-07 17:42:11 +00:00
parent 4e66158a93
commit ab8079ed2a
7 changed files with 224 additions and 22 deletions

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@ -2198,6 +2198,11 @@ int HexagonAsmParser::processInstruction(MCInst &Inst,
if (!HexagonMCInstrInfo::mustExtend(*Inst.getOperand(0).getExpr()))
Inst.setOpcode(Hexagon::S2_storerinewgp);
break;
case Hexagon::A2_zxtb: {
Inst.setOpcode(Hexagon::A2_andir);
Inst.addOperand(MCOperand::createExpr(MCConstantExpr::create(255, Context)));
break;
}
} // switch
return Match_Success;

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@ -282,6 +282,36 @@ void HexagonAsmPrinter::HexagonProcessInstruction(MCInst &Inst,
break;
}
case Hexagon::A2_tfrf: {
Inst.setOpcode(Hexagon::A2_paddif);
Inst.addOperand(MCOperand::createExpr(MCConstantExpr::create(0, OutContext)));
break;
}
case Hexagon::A2_tfrt: {
Inst.setOpcode(Hexagon::A2_paddit);
Inst.addOperand(MCOperand::createExpr(MCConstantExpr::create(0, OutContext)));
break;
}
case Hexagon::A2_tfrfnew: {
Inst.setOpcode(Hexagon::A2_paddifnew);
Inst.addOperand(MCOperand::createExpr(MCConstantExpr::create(0, OutContext)));
break;
}
case Hexagon::A2_tfrtnew: {
Inst.setOpcode(Hexagon::A2_padditnew);
Inst.addOperand(MCOperand::createExpr(MCConstantExpr::create(0, OutContext)));
break;
}
case Hexagon::A2_zxtb: {
Inst.setOpcode(Hexagon::A2_andir);
Inst.addOperand(MCOperand::createExpr(MCConstantExpr::create(255, OutContext)));
break;
}
// "$dst = CONST64(#$src1)",
case Hexagon::CONST64:
if (!OutStreamer->hasRawTextSupport()) {
@ -376,6 +406,9 @@ void HexagonAsmPrinter::HexagonProcessInstruction(MCInst &Inst,
Rs.setReg(getHexagonRegisterPair(Rs.getReg(), RI));
return;
}
case Hexagon::PS_call_nr:
Inst.setOpcode(Hexagon::J2_call);
break;
case Hexagon::S5_asrhub_rnd_sat_goodsyntax: {
MCOperand &MO = MappedInst.getOperand(2);
int64_t Imm;

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@ -401,13 +401,12 @@ def A2_tfril: T_tfr16<0>;
def A2_tfrih: T_tfr16<1>;
// Conditional transfer is an alias to conditional "Rd = add(Rs, #0)".
let isPredicated = 1, hasNewValue = 1, opNewValue = 0 in
let isPredicated = 1, hasNewValue = 1, isCodeGenOnly = 1, opNewValue = 0,
isPseudo = 1 in
class T_tfr_pred<bit isPredNot, bit isPredNew>
: ALU32Inst<(outs IntRegs:$dst),
(ins PredRegs:$src1, IntRegs:$src2),
"if ("#!if(isPredNot, "!", "")#
"$src1"#!if(isPredNew, ".new", "")#
") $dst = $src2"> {
""> {
bits<5> dst;
bits<2> src1;
bits<5> src2;
@ -487,6 +486,11 @@ multiclass TFR64_base<string BaseName> {
}
}
def A2_tfrfAlias : InstAlias<"if (!$Pu4) $Rd32=$Rs32", (A2_paddif IntRegs:$Rd32, PredRegs:$Pu4, IntRegs:$Rs32, 0)>;
def A2_tfrfnewAlias : InstAlias<"if (!$Pu4.new) $Rd32=$Rs32", (A2_paddifnew IntRegs:$Rd32, PredRegs:$Pu4, IntRegs:$Rs32, 0)>;
def A2_tfrtAlias : InstAlias<"if ($Pu4) $Rd32=$Rs32", (A2_paddit IntRegs:$Rd32, PredRegs:$Pu4, IntRegs:$Rs32, 0)>;
def A2_tfrtnewAlias : InstAlias<"if ($Pu4.new) $Rd32=$Rs32", (A2_padditnew IntRegs:$Rd32, PredRegs:$Pu4, IntRegs:$Rs32, 0)>;
let InputType = "imm", isExtendable = 1, isExtentSigned = 1, opExtentBits = 12,
isMoveImm = 1, opExtendable = 2, BaseOpcode = "TFRI", CextOpcode = "TFR",
hasSideEffects = 0, isPredicated = 1, hasNewValue = 1 in
@ -699,19 +703,7 @@ defm zxth : ALU32_2op_base<"zxth", 0b110>, PredNewRel;
let hasNewValue = 1, opNewValue = 0 in
class T_ZXTB: ALU32Inst < (outs IntRegs:$Rd), (ins IntRegs:$Rs),
"$Rd = zxtb($Rs)", [] > { // Rd = and(Rs,255)
bits<5> Rd;
bits<5> Rs;
bits<10> s10 = 255;
let IClass = 0b0111;
let Inst{27-22} = 0b011000;
let Inst{4-0} = Rd;
let Inst{20-16} = Rs;
let Inst{21} = s10{9};
let Inst{13-5} = s10{8-0};
}
"$Rd=zxtb($Rs)", [] >;
//Rd=zxtb(Rs): assembler mapped to "Rd=and(Rs,#255)
multiclass ZXTB_base <string mnemonic, bits<3> minOp> {

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@ -61,7 +61,7 @@ multiclass T_Calls<bit CSR, string ExtStr> {
defm J2_call: T_Calls<1, "">, PredRel;
let isCodeGenOnly = 1, isCall = 1, hasSideEffects = 1,
Defs = VolatileV3.Regs in
Defs = VolatileV3.Regs, isPseudo = 1 in
def PS_call_nr : T_Call<1, "">, PredRel;
let isCodeGenOnly = 1, isCall = 1, hasSideEffects = 1,

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@ -0,0 +1,94 @@
; RUN: llc -march=hexagon -mcpu=hexagonv5 -enable-pipeliner -pipeliner-max-stages=2 -disable-block-placement=0 -hexagon-bit=0 < %s | FileCheck %s
; Test that we rename registers correctly for multiple stages when there is a
; Phi and depends upon another Phi.
; CHECK: = and
; CHECK: = and
; CHECK: = and
; CHECK: [[REG0:(r[0-9]+)]] = and([[REG1:(r[0-9]+)]], #255)
; CHECK-NOT: [[REG0]] = and([[REG1]], #255)
; CHECK: loop0(.LBB0_[[LOOP:.]],
; CHECK: .LBB0_[[LOOP]]:
; CHECK: [[REG0]] += add
; CHECK: = and
; CHECK: = and
; CHECK: [[REG0]] = and
; CHECK: endloop
; Function Attrs: nounwind
define void @test(i8* noalias nocapture %src, i32 %srcWidth, i32 %srcHeight, i32 %srcStride, i8* noalias nocapture %dst, i32 %dstStride) #0 {
entry:
%sub = add i32 %srcWidth, -1
%sub1 = add i32 %srcHeight, -1
%add.ptr = getelementptr inbounds i8, i8* %src, i32 %srcStride
%add.ptr.sum = mul i32 %srcStride, 2
%add.ptr2 = getelementptr inbounds i8, i8* %src, i32 %add.ptr.sum
br label %for.body.lr.ph
for.body.lr.ph:
%0 = add i32 %srcHeight, -2
%1 = mul i32 %0, %dstStride
%2 = mul i32 %0, %srcStride
%3 = mul i32 %sub1, %srcStride
br label %for.cond
for.cond:
%scevgep = getelementptr i8, i8* %dst, i32 %1
%scevgep220 = getelementptr i8, i8* %src, i32 %2
%scevgep221 = getelementptr i8, i8* %src, i32 %3
%arrayidx6 = getelementptr inbounds i8, i8* %src, i32 1
%add11 = add i32 %srcStride, 1
%arrayidx12 = getelementptr inbounds i8, i8* %src, i32 %add11
br label %for.body75.preheader
for.body75.preheader:
%sri = load i8, i8* %arrayidx6, align 1
%sri224 = load i8, i8* %src, align 1
%sri227 = load i8, i8* %arrayidx12, align 1
%sri229 = load i8, i8* %add.ptr, align 1
br label %for.body75
for.body75:
%j.0211 = phi i32 [ %add82, %for.body75 ], [ 1, %for.body75.preheader ]
%sr = phi i8 [ %4, %for.body75 ], [ %sri, %for.body75.preheader ]
%sr225 = phi i8 [ %sr, %for.body75 ], [ %sri224, %for.body75.preheader ]
%sr230 = phi i8 [ %5, %for.body75 ], [ %sri227, %for.body75.preheader ]
%sr231 = phi i8 [ %sr230, %for.body75 ], [ %sri229, %for.body75.preheader ]
%conv78 = zext i8 %sr225 to i32
%conv80 = zext i8 %sr to i32
%add81 = add nsw i32 %conv80, %conv78
%add82 = add i32 %j.0211, 1
%arrayidx83 = getelementptr inbounds i8, i8* %src, i32 %add82
%4 = load i8, i8* %arrayidx83, align 1, !tbaa !0
%conv84 = zext i8 %4 to i32
%add85 = add nsw i32 %add81, %conv84
%conv88 = zext i8 %sr231 to i32
%add89 = add nsw i32 %add85, %conv88
%conv91 = zext i8 %sr230 to i32
%add92 = add nsw i32 %add89, %conv91
%add.ptr.sum208 = add i32 %add82, %srcStride
%arrayidx94 = getelementptr inbounds i8, i8* %src, i32 %add.ptr.sum208
%5 = load i8, i8* %arrayidx94, align 1, !tbaa !0
%conv95 = zext i8 %5 to i32
%add96 = add nsw i32 %add92, %conv95
%mul97 = mul nsw i32 %add96, 7282
%add98 = add nsw i32 %mul97, 32768
%shr99209 = lshr i32 %add98, 16
%conv100 = trunc i32 %shr99209 to i8
%arrayidx101 = getelementptr inbounds i8, i8* %dst, i32 %j.0211
store i8 %conv100, i8* %arrayidx101, align 1, !tbaa !0
%exitcond = icmp eq i32 %add82, %sub
br i1 %exitcond, label %for.end104.loopexit, label %for.body75
for.end104.loopexit:
br label %for.end104
for.end104:
ret void
}
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
!0 = !{!"omnipotent char", !1}
!1 = !{!"Simple C/C++ TBAA"}

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@ -0,0 +1,78 @@
; RUN: llc -march=hexagon -mcpu=hexagonv5 -enable-pipeliner -pipeliner-max-stages=2 -hexagon-bit=0 < %s | FileCheck %s
; Very similar to swp-stages4.ll, but the pipelined schedule is a little
; different.
; CHECK: = memub(r{{[0-9]+}}++#1)
; CHECK-DAG: [[REG0:(r[0-9]+)]] = memub(r{{[0-9]+}}++#1)
; CHECK-DAG: loop0(.LBB0_[[LOOP:.]],
; CHECK: .LBB0_[[LOOP]]:
; CHECK: = and([[REG0]], #255)
; CHECK: [[REG0]]{{[:0-9]*}} =
; CHECK: endloop
define void @fred(i8* noalias nocapture %src, i32 %srcWidth, i32 %srcHeight, i32 %srcStride, i8* noalias nocapture %dst, i32 %dstStride) #0 {
entry:
%sub = add i32 %srcWidth, -1
%sub1 = add i32 %srcHeight, -1
%add.ptr = getelementptr inbounds i8, i8* %src, i32 %srcStride
%add.ptr.sum = mul i32 %srcStride, 2
%add.ptr2 = getelementptr inbounds i8, i8* %src, i32 %add.ptr.sum
%cmp212 = icmp ugt i32 %sub1, 1
br i1 %cmp212, label %for.body.lr.ph, label %for.end
for.body.lr.ph:
br label %for.body74.preheader
for.body74.preheader:
%0 = load i8, i8* %add.ptr, align 1, !tbaa !0
%arrayidx40 = getelementptr inbounds i8, i8* %add.ptr, i32 1
%1 = load i8, i8* %arrayidx40, align 1, !tbaa !0
%2 = load i8, i8* %add.ptr, align 1, !tbaa !0
%arrayidx46 = getelementptr inbounds i8, i8* %add.ptr, i32 1
%3 = load i8, i8* %arrayidx46, align 1, !tbaa !0
br label %for.body74
for.body74:
%4 = phi i8 [ %9, %for.body74 ], [ %3, %for.body74.preheader ]
%5 = phi i8 [ %4, %for.body74 ], [ %2, %for.body74.preheader ]
%6 = phi i8 [ %8, %for.body74 ], [ %1, %for.body74.preheader ]
%7 = phi i8 [ %6, %for.body74 ], [ %0, %for.body74.preheader ]
%j.0211 = phi i32 [ %add81, %for.body74 ], [ 1, %for.body74.preheader ]
%conv77 = zext i8 %7 to i32
%conv79 = zext i8 %6 to i32
%add80 = add nsw i32 %conv79, %conv77
%add81 = add i32 %j.0211, 1
%arrayidx82 = getelementptr inbounds i8, i8* %src, i32 %add81
%8 = load i8, i8* %arrayidx82, align 1, !tbaa !0
%conv83 = zext i8 %8 to i32
%add84 = add nsw i32 %add80, %conv83
%conv87 = zext i8 %5 to i32
%add88 = add nsw i32 %add84, %conv87
%conv90 = zext i8 %4 to i32
%add91 = add nsw i32 %add88, %conv90
%arrayidx93 = getelementptr inbounds i8, i8* %add.ptr, i32 %add81
%9 = load i8, i8* %arrayidx93, align 1, !tbaa !0
%conv94 = zext i8 %9 to i32
%add95 = add nsw i32 %add91, %conv94
%mul96 = mul nsw i32 %add95, 7282
%add97 = add nsw i32 %mul96, 32768
%shr98208 = lshr i32 %add97, 16
%conv99 = trunc i32 %shr98208 to i8
%add.ptr5.sum209 = add i32 %j.0211, %dstStride
%arrayidx100 = getelementptr inbounds i8, i8* %dst, i32 %add.ptr5.sum209
store i8 %conv99, i8* %arrayidx100, align 1, !tbaa !0
%exitcond = icmp eq i32 %add81, %sub
br i1 %exitcond, label %for.end103.loopexit, label %for.body74
for.end103.loopexit:
br label %for.end
for.end:
ret void
}
attributes #0 = { nounwind }
!0 = !{!"omnipotent char", !1}
!1 = !{!"Simple C/C++ TBAA"}

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@ -540,10 +540,10 @@ r5=zxtb(r20)
p0=cmp.eq(r0,##179976360)
}
#CHECK: 74f9c00f { if (!p3) r15{{ *}}={{ *}}r25
#CHECK: 74f9c00f { if (!p3) r15{{ *}} ={{ *}}add(r25, #0)
if (!p3) r15=r25
#CHECK: 7425c005 { if (p1) r5{{ *}}={{ *}}r5
#CHECK: 7425c005 { if (p1) r5{{ *}}={{ *}}add(r5, #0)
if (p1) r5=r5
#CHECK: e9badae2 { r2{{ *}}={{ *}}vrcmpys(r27:26, r27:26):<<1:rnd:sat:raw:lo
@ -561,7 +561,7 @@ if (!p2) r3:2=r7:6
#CHECK: fd0dcc7e { if (p3) r31:30{{ *}}={{ *}}{{r13:12|combine\(r13, *r12\)}}
if (p3) r31:30=r13:12
#CHECK: 748ae015 if (!p0.new) r21{{ *}}={{ *}}r10
#CHECK: 748ae015 if (!p0.new) r21{{ *}}={{ *}}add(r10, #0)
{
p0=cmp.eq(r23,##805633208)
if (!p0.new) r21=r10
@ -605,4 +605,4 @@ r19:18=vrcmpys(r11:10,r16):<<1:sat
r21:20=memb_fifo(r2)
#CHECK: 9056c01c { r29:28{{ *}}={{ *}}memh_fifo(r22{{ *}}+{{ *}}#0)
r29:28=memh_fifo(r22)
r29:28=memh_fifo(r22)