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For ARM, fix assertuib failures for some ld/st 3/4 instruction with wirteback.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199369 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jiangning Liu 2014-01-16 09:16:13 +00:00
parent 165f7ac98f
commit 43a785be50
8 changed files with 128 additions and 11 deletions
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2
lib/Target/ARM/ARMBaseInstrInfo.cpp
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@ -3686,6 +3686,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
case ARM::VLD3d16Pseudo:
case ARM::VLD3d32Pseudo:
case ARM::VLD1d64TPseudo:
case ARM::VLD1d64TPseudoWB_fixed:
case ARM::VLD3d8Pseudo_UPD:
case ARM::VLD3d16Pseudo_UPD:
case ARM::VLD3d32Pseudo_UPD:
@ -3702,6 +3703,7 @@ ARMBaseInstrInfo::getOperandLatency(const InstrItineraryData *ItinData,
case ARM::VLD4d16Pseudo:
case ARM::VLD4d32Pseudo:
case ARM::VLD1d64QPseudo:
case ARM::VLD1d64QPseudoWB_fixed:
case ARM::VLD4d8Pseudo_UPD:
case ARM::VLD4d16Pseudo_UPD:
case ARM::VLD4d32Pseudo_UPD:

4
lib/Target/ARM/ARMExpandPseudoInsts.cpp
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@ -138,7 +138,9 @@ static const NEONLdStTableEntry NEONLdStTable[] = {
{ ARM::VLD1LNq8Pseudo_UPD, ARM::VLD1LNd8_UPD, true, true, true, EvenDblSpc, 1, 8 ,true},
{ ARM::VLD1d64QPseudo, ARM::VLD1d64Q, true, false, false, SingleSpc, 4, 1 ,false},
{ ARM::VLD1d64QPseudoWB_fixed, ARM::VLD1d64Qwb_fixed, true, true, false, SingleSpc, 4, 1 ,false},
{ ARM::VLD1d64TPseudo, ARM::VLD1d64T, true, false, false, SingleSpc, 3, 1 ,false},
{ ARM::VLD1d64TPseudoWB_fixed, ARM::VLD1d64Twb_fixed, true, true, false, SingleSpc, 3, 1 ,false},
{ ARM::VLD2LNd16Pseudo, ARM::VLD2LNd16, true, false, false, SingleSpc, 2, 4 ,true},
{ ARM::VLD2LNd16Pseudo_UPD, ARM::VLD2LNd16_UPD, true, true, true, SingleSpc, 2, 4 ,true},
@ -1118,6 +1120,7 @@ bool ARMExpandPseudo::ExpandMI(MachineBasicBlock &MBB,
case ARM::VLD3d16Pseudo:
case ARM::VLD3d32Pseudo:
case ARM::VLD1d64TPseudo:
case ARM::VLD1d64TPseudoWB_fixed:
case ARM::VLD3d8Pseudo_UPD:
case ARM::VLD3d16Pseudo_UPD:
case ARM::VLD3d32Pseudo_UPD:
@ -1134,6 +1137,7 @@ bool ARMExpandPseudo::ExpandMI(MachineBasicBlock &MBB,
case ARM::VLD4d16Pseudo:
case ARM::VLD4d32Pseudo:
case ARM::VLD1d64QPseudo:
case ARM::VLD1d64QPseudoWB_fixed:
case ARM::VLD4d8Pseudo_UPD:
case ARM::VLD4d16Pseudo_UPD:
case ARM::VLD4d32Pseudo_UPD:

75
lib/Target/ARM/ARMISelDAGToDAG.cpp
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@ -1668,9 +1668,61 @@ SDValue ARMDAGToDAGISel::GetVLDSTAlign(SDValue Align, unsigned NumVecs,
return CurDAG->getTargetConstant(Alignment, MVT::i32);
}
static bool isVLDfixed(unsigned Opc)
{
switch (Opc) {
default: return false;
case ARM::VLD1d8wb_fixed : return true;
case ARM::VLD1d16wb_fixed : return true;
case ARM::VLD1d64Qwb_fixed : return true;
case ARM::VLD1d32wb_fixed : return true;
case ARM::VLD1d64wb_fixed : return true;
case ARM::VLD1d64TPseudoWB_fixed : return true;
case ARM::VLD1d64QPseudoWB_fixed : return true;
case ARM::VLD1q8wb_fixed : return true;
case ARM::VLD1q16wb_fixed : return true;
case ARM::VLD1q32wb_fixed : return true;
case ARM::VLD1q64wb_fixed : return true;
case ARM::VLD2d8wb_fixed : return true;
case ARM::VLD2d16wb_fixed : return true;
case ARM::VLD2d32wb_fixed : return true;
case ARM::VLD2q8PseudoWB_fixed : return true;
case ARM::VLD2q16PseudoWB_fixed : return true;
case ARM::VLD2q32PseudoWB_fixed : return true;
case ARM::VLD2DUPd8wb_fixed : return true;
case ARM::VLD2DUPd16wb_fixed : return true;
case ARM::VLD2DUPd32wb_fixed : return true;
}
}
static bool isVSTfixed(unsigned Opc)
{
switch (Opc) {
default: return false;
case ARM::VST1d8wb_fixed : return true;
case ARM::VST1d16wb_fixed : return true;
case ARM::VST1d32wb_fixed : return true;
case ARM::VST1d64wb_fixed : return true;
case ARM::VST1q8wb_fixed : return true;
case ARM::VST1q16wb_fixed : return true;
case ARM::VST1q32wb_fixed : return true;
case ARM::VST1q64wb_fixed : return true;
case ARM::VST1d64TPseudoWB_fixed : return true;
case ARM::VST1d64QPseudoWB_fixed : return true;
case ARM::VST2d8wb_fixed : return true;
case ARM::VST2d16wb_fixed : return true;
case ARM::VST2d32wb_fixed : return true;
case ARM::VST2q8PseudoWB_fixed : return true;
case ARM::VST2q16PseudoWB_fixed : return true;
case ARM::VST2q32PseudoWB_fixed : return true;
}
}
// Get the register stride update opcode of a VLD/VST instruction that
// is otherwise equivalent to the given fixed stride updating instruction.
static unsigned getVLDSTRegisterUpdateOpcode(unsigned Opc) {
assert((isVLDfixed(Opc) || isVSTfixed(Opc))
&& "Incorrect fixed stride updating instruction.");
switch (Opc) {
default: break;
case ARM::VLD1d8wb_fixed: return ARM::VLD1d8wb_register;
@ -1681,6 +1733,10 @@ static unsigned getVLDSTRegisterUpdateOpcode(unsigned Opc) {
case ARM::VLD1q16wb_fixed: return ARM::VLD1q16wb_register;
case ARM::VLD1q32wb_fixed: return ARM::VLD1q32wb_register;
case ARM::VLD1q64wb_fixed: return ARM::VLD1q64wb_register;
case ARM::VLD1d64Twb_fixed: return ARM::VLD1d64Twb_register;
case ARM::VLD1d64Qwb_fixed: return ARM::VLD1d64Qwb_register;
case ARM::VLD1d64TPseudoWB_fixed: return ARM::VLD1d64TPseudoWB_register;
case ARM::VLD1d64QPseudoWB_fixed: return ARM::VLD1d64QPseudoWB_register;
case ARM::VST1d8wb_fixed: return ARM::VST1d8wb_register;
case ARM::VST1d16wb_fixed: return ARM::VST1d16wb_register;
@ -1780,11 +1836,11 @@ SDNode *ARMDAGToDAGISel::SelectVLD(SDNode *N, bool isUpdating, unsigned NumVecs,
SDValue Inc = N->getOperand(AddrOpIdx + 1);
// FIXME: VLD1/VLD2 fixed increment doesn't need Reg0. Remove the reg0
// case entirely when the rest are updated to that form, too.
if ((NumVecs == 1 || NumVecs == 2) && !isa<ConstantSDNode>(Inc.getNode()))
if ((NumVecs <= 2) && !isa<ConstantSDNode>(Inc.getNode()))
Opc = getVLDSTRegisterUpdateOpcode(Opc);
// We use a VLD1 for v1i64 even if the pseudo says vld2/3/4, so
// FIXME: We use a VLD1 for v1i64 even if the pseudo says vld2/3/4, so
// check for that explicitly too. Horribly hacky, but temporary.
if ((NumVecs != 1 && NumVecs != 2 && Opc != ARM::VLD1q64wb_fixed) ||
if ((NumVecs > 2 && !isVLDfixed(Opc)) ||
!isa<ConstantSDNode>(Inc.getNode()))
Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc);
}
@ -1932,11 +1988,12 @@ SDNode *ARMDAGToDAGISel::SelectVST(SDNode *N, bool isUpdating, unsigned NumVecs,
// case entirely when the rest are updated to that form, too.
if (NumVecs <= 2 && !isa<ConstantSDNode>(Inc.getNode()))
Opc = getVLDSTRegisterUpdateOpcode(Opc);
// We use a VST1 for v1i64 even if the pseudo says vld2/3/4, so
// FIXME: We use a VST1 for v1i64 even if the pseudo says vld2/3/4, so
// check for that explicitly too. Horribly hacky, but temporary.
if ((NumVecs > 2 && Opc != ARM::VST1q64wb_fixed) ||
!isa<ConstantSDNode>(Inc.getNode()))
Ops.push_back(isa<ConstantSDNode>(Inc.getNode()) ? Reg0 : Inc);
if (!isa<ConstantSDNode>(Inc.getNode()))
Ops.push_back(Inc);
else if (NumVecs > 2 && !isVSTfixed(Opc))
Ops.push_back(Reg0);
}
Ops.push_back(SrcReg);
Ops.push_back(Pred);
@ -2829,7 +2886,7 @@ SDNode *ARMDAGToDAGISel::Select(SDNode *N) {
static const uint16_t DOpcodes[] = { ARM::VLD3d8Pseudo_UPD,
ARM::VLD3d16Pseudo_UPD,
ARM::VLD3d32Pseudo_UPD,
ARM::VLD1q64wb_fixed};
ARM::VLD1d64TPseudoWB_fixed};
static const uint16_t QOpcodes0[] = { ARM::VLD3q8Pseudo_UPD,
ARM::VLD3q16Pseudo_UPD,
ARM::VLD3q32Pseudo_UPD };
@ -2843,7 +2900,7 @@ SDNode *ARMDAGToDAGISel::Select(SDNode *N) {
static const uint16_t DOpcodes[] = { ARM::VLD4d8Pseudo_UPD,
ARM::VLD4d16Pseudo_UPD,
ARM::VLD4d32Pseudo_UPD,
ARM::VLD1q64wb_fixed};
ARM::VLD1d64QPseudoWB_fixed};
static const uint16_t QOpcodes0[] = { ARM::VLD4q8Pseudo_UPD,
ARM::VLD4q16Pseudo_UPD,
ARM::VLD4q32Pseudo_UPD };

8
lib/Target/ARM/ARMInstrNEON.td
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@ -730,6 +730,8 @@ defm VLD1d32Twb : VLD1D3WB<{1,0,0,?}, "32">;
defm VLD1d64Twb : VLD1D3WB<{1,1,0,?}, "64">;
def VLD1d64TPseudo : VLDQQPseudo<IIC_VLD1x3>;
def VLD1d64TPseudoWB_fixed : VLDQQWBfixedPseudo<IIC_VLD1x3>;
def VLD1d64TPseudoWB_register : VLDQQWBregisterPseudo<IIC_VLD1x3>;
// ...with 4 registers
class VLD1D4<bits<4> op7_4, string Dt>
@ -769,6 +771,8 @@ defm VLD1d32Qwb : VLD1D4WB<{1,0,?,?}, "32">;
defm VLD1d64Qwb : VLD1D4WB<{1,1,?,?}, "64">;
def VLD1d64QPseudo : VLDQQPseudo<IIC_VLD1x4>;
def VLD1d64QPseudoWB_fixed : VLDQQWBfixedPseudo<IIC_VLD1x4>;
def VLD1d64QPseudoWB_register : VLDQQWBregisterPseudo<IIC_VLD1x4>;
// VLD2 : Vector Load (multiple 2-element structures)
class VLD2<bits<4> op11_8, bits<4> op7_4, string Dt, RegisterOperand VdTy,
@ -1671,7 +1675,7 @@ defm VST1d32Twb : VST1D3WB<{1,0,0,?}, "32">;
defm VST1d64Twb : VST1D3WB<{1,1,0,?}, "64">;
def VST1d64TPseudo : VSTQQPseudo<IIC_VST1x3>;
def VST1d64TPseudoWB_fixed : VSTQQWBPseudo<IIC_VST1x3u>;
def VST1d64TPseudoWB_fixed : VSTQQWBfixedPseudo<IIC_VST1x3u>;
def VST1d64TPseudoWB_register : VSTQQWBPseudo<IIC_VST1x3u>;
// ...with 4 registers
@ -1714,7 +1718,7 @@ defm VST1d32Qwb : VST1D4WB<{1,0,?,?}, "32">;
defm VST1d64Qwb : VST1D4WB<{1,1,?,?}, "64">;
def VST1d64QPseudo : VSTQQPseudo<IIC_VST1x4>;
def VST1d64QPseudoWB_fixed : VSTQQWBPseudo<IIC_VST1x4u>;
def VST1d64QPseudoWB_fixed : VSTQQWBfixedPseudo<IIC_VST1x4u>;
def VST1d64QPseudoWB_register : VSTQQWBPseudo<IIC_VST1x4u>;
// VST2 : Vector Store (multiple 2-element structures)

13
test/CodeGen/ARM/vld3.ll
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@ -83,6 +83,19 @@ define <1 x i64> @vld3i64(i64* %A) nounwind {
ret <1 x i64> %tmp4
}
define <1 x i64> @vld3i64_update(i64** %ptr, i64* %A) nounwind {
;CHECK-LABEL: vld3i64_update:
;CHECK: vld1.64 {d16, d17, d18}, [r1:64]!
%tmp0 = bitcast i64* %A to i8*
%tmp1 = call %struct.__neon_int64x1x3_t @llvm.arm.neon.vld3.v1i64(i8* %tmp0, i32 16)
%tmp5 = getelementptr i64* %A, i32 3
store i64* %tmp5, i64** %ptr
%tmp2 = extractvalue %struct.__neon_int64x1x3_t %tmp1, 0
%tmp3 = extractvalue %struct.__neon_int64x1x3_t %tmp1, 2
%tmp4 = add <1 x i64> %tmp2, %tmp3
ret <1 x i64> %tmp4
}
define <16 x i8> @vld3Qi8(i8* %A) nounwind {
;CHECK-LABEL: vld3Qi8:
;Check the alignment value. Max for this instruction is 64 bits:

13
test/CodeGen/ARM/vld4.ll
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@ -83,6 +83,19 @@ define <1 x i64> @vld4i64(i64* %A) nounwind {
ret <1 x i64> %tmp4
}
define <1 x i64> @vld4i64_update(i64** %ptr, i64* %A) nounwind {
;CHECK-LABEL: vld4i64_update:
;CHECK: vld1.64 {d16, d17, d18, d19}, [r1:256]!
%tmp0 = bitcast i64* %A to i8*
%tmp1 = call %struct.__neon_int64x1x4_t @llvm.arm.neon.vld4.v1i64(i8* %tmp0, i32 64)
%tmp5 = getelementptr i64* %A, i32 4
store i64* %tmp5, i64** %ptr
%tmp2 = extractvalue %struct.__neon_int64x1x4_t %tmp1, 0
%tmp3 = extractvalue %struct.__neon_int64x1x4_t %tmp1, 2
%tmp4 = add <1 x i64> %tmp2, %tmp3
ret <1 x i64> %tmp4
}
define <16 x i8> @vld4Qi8(i8* %A) nounwind {
;CHECK-LABEL: vld4Qi8:
;Check the alignment value. Max for this instruction is 256 bits:

12
test/CodeGen/ARM/vst3.ll
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@ -61,6 +61,18 @@ define void @vst3i64(i64* %A, <1 x i64>* %B) nounwind {
ret void
}
define void @vst3i64_update(i64** %ptr, <1 x i64>* %B) nounwind {
;CHECK-LABEL: vst3i64_update
;CHECK: vst1.64 {d{{.*}}, d{{.*}}, d{{.*}}}, [r{{.*}}]!
%A = load i64** %ptr
%tmp0 = bitcast i64* %A to i8*
%tmp1 = load <1 x i64>* %B
call void @llvm.arm.neon.vst3.v1i64(i8* %tmp0, <1 x i64> %tmp1, <1 x i64> %tmp1, <1 x i64> %tmp1, i32 1)
%tmp2 = getelementptr i64* %A, i32 3
store i64* %tmp2, i64** %ptr
ret void
}
define void @vst3Qi8(i8* %A, <16 x i8>* %B) nounwind {
;CHECK-LABEL: vst3Qi8:
;Check the alignment value. Max for this instruction is 64 bits:

12
test/CodeGen/ARM/vst4.ll
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@ -60,6 +60,18 @@ define void @vst4i64(i64* %A, <1 x i64>* %B) nounwind {
ret void
}
define void @vst4i64_update(i64** %ptr, <1 x i64>* %B) nounwind {
;CHECK-LABEL: vst4i64_update:
;CHECK: vst1.64 {d16, d17, d18, d19}, [r1]!
%A = load i64** %ptr
%tmp0 = bitcast i64* %A to i8*
%tmp1 = load <1 x i64>* %B
call void @llvm.arm.neon.vst4.v1i64(i8* %tmp0, <1 x i64> %tmp1, <1 x i64> %tmp1, <1 x i64> %tmp1, <1 x i64> %tmp1, i32 1)
%tmp2 = getelementptr i64* %A, i32 4
store i64* %tmp2, i64** %ptr
ret void
}
define void @vst4Qi8(i8* %A, <16 x i8>* %B) nounwind {
;CHECK-LABEL: vst4Qi8:
;Check the alignment value. Max for this instruction is 256 bits: