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Teach Legalize how to scalarize VSETCC

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Teach X86 a few more vsetcc patterns.  Custom lowering for unsupported ones is next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51009 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2008-05-12 23:09:43 +00:00
parent 9bfa03c6fd
commit 0d1704b955
2 changed files with 37 additions and 0 deletions
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10
lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
View File

@ -7117,6 +7117,16 @@ SDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) {
ScalarizeVectorOp(Op.getOperand(1)),
ScalarizeVectorOp(Op.getOperand(2)));
break;
case ISD::VSETCC: {
SDOperand Op0 = ScalarizeVectorOp(Op.getOperand(0));
SDOperand Op1 = ScalarizeVectorOp(Op.getOperand(1));
Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Op0), Op0, Op1,
Op.getOperand(2));
Result = DAG.getNode(ISD::SELECT, NewVT, Result,
DAG.getConstant(-1ULL, NewVT),
DAG.getConstant(0ULL, NewVT));
break;
}
}
if (TLI.isTypeLegal(NewVT))

27
lib/Target/X86/X86InstrSSE.td
View File

@ -1966,6 +1966,33 @@ defm PCMPGTB : PDI_binop_rm_int<0x64, "pcmpgtb", int_x86_sse2_pcmpgt_b>;
defm PCMPGTW : PDI_binop_rm_int<0x65, "pcmpgtw", int_x86_sse2_pcmpgt_w>;
defm PCMPGTD : PDI_binop_rm_int<0x66, "pcmpgtd", int_x86_sse2_pcmpgt_d>;
def : Pat<(v16i8 (vsetcc (v16i8 VR128:$src1), VR128:$src2, SETEQ)),
(PCMPEQBrr VR128:$src1, VR128:$src2)>;
def : Pat<(v16i8 (vsetcc (v16i8 VR128:$src1), (memop addr:$src2), SETEQ)),
(PCMPEQBrm VR128:$src1, addr:$src2)>;
def : Pat<(v8i16 (vsetcc (v8i16 VR128:$src1), VR128:$src2, SETEQ)),
(PCMPEQWrr VR128:$src1, VR128:$src2)>;
def : Pat<(v8i16 (vsetcc (v8i16 VR128:$src1), (memop addr:$src2), SETEQ)),
(PCMPEQWrm VR128:$src1, addr:$src2)>;
def : Pat<(v4i32 (vsetcc (v4i32 VR128:$src1), VR128:$src2, SETEQ)),
(PCMPEQDrr VR128:$src1, VR128:$src2)>;
def : Pat<(v4i32 (vsetcc (v4i32 VR128:$src1), (memop addr:$src2), SETEQ)),
(PCMPEQDrm VR128:$src1, addr:$src2)>;
def : Pat<(v16i8 (vsetcc (v16i8 VR128:$src1), VR128:$src2, SETGT)),
(PCMPGTBrr VR128:$src1, VR128:$src2)>;
def : Pat<(v16i8 (vsetcc (v16i8 VR128:$src1), (memop addr:$src2), SETGT)),
(PCMPGTBrm VR128:$src1, addr:$src2)>;
def : Pat<(v8i16 (vsetcc (v8i16 VR128:$src1), VR128:$src2, SETGT)),
(PCMPGTWrr VR128:$src1, VR128:$src2)>;
def : Pat<(v8i16 (vsetcc (v8i16 VR128:$src1), (memop addr:$src2), SETGT)),
(PCMPGTWrm VR128:$src1, addr:$src2)>;
def : Pat<(v4i32 (vsetcc (v4i32 VR128:$src1), VR128:$src2, SETGT)),
(PCMPGTDrr VR128:$src1, VR128:$src2)>;
def : Pat<(v4i32 (vsetcc (v4i32 VR128:$src1), (memop addr:$src2), SETGT)),
(PCMPGTDrm VR128:$src1, addr:$src2)>;
// Pack instructions
defm PACKSSWB : PDI_binop_rm_int<0x63, "packsswb", int_x86_sse2_packsswb_128>;
defm PACKSSDW : PDI_binop_rm_int<0x6B, "packssdw", int_x86_sse2_packssdw_128>;