Added support for SELECT v8i8 v4i16 for X86 (MMX)
Added support for TRUNC v8i16 to v8i8 for X86 (MMX)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60916 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index 405aec6..2108abf 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -3937,6 +3937,10 @@
if (Tmp1.getNode()) Result = Tmp1;
}
break;
+ case TargetLowering::Expand:
+ assert(Result.getValueType().isVector() && "must be vector type");
+ // Unroll the truncate. We should do better.
+ Result = LegalizeOp(UnrollVectorOp(Result));
}
break;
case Expand:
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 496112d..fd57ccf 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -650,6 +650,13 @@
setOperationAction(ISD::SCALAR_TO_VECTOR, MVT::v1i64, Custom);
setOperationAction(ISD::INSERT_VECTOR_ELT, MVT::v4i16, Custom);
+
+ setTruncStoreAction(MVT::v8i16, MVT::v8i8, Expand);
+ setOperationAction(ISD::TRUNCATE, MVT::v8i8, Expand);
+ setOperationAction(ISD::SELECT, MVT::v8i8, Promote);
+ setOperationAction(ISD::SELECT, MVT::v4i16, Promote);
+ setOperationAction(ISD::SELECT, MVT::v2i32, Promote);
+ setOperationAction(ISD::SELECT, MVT::v1i64, Custom);
}
if (Subtarget->hasSSE1()) {
@@ -6960,6 +6967,7 @@
const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
switch (MI->getOpcode()) {
default: assert(false && "Unexpected instr type to insert");
+ case X86::CMOV_V1I64:
case X86::CMOV_FR32:
case X86::CMOV_FR64:
case X86::CMOV_V4F32:
diff --git a/lib/Target/X86/X86InstrMMX.td b/lib/Target/X86/X86InstrMMX.td
index fd70801..62055c0 100644
--- a/lib/Target/X86/X86InstrMMX.td
+++ b/lib/Target/X86/X86InstrMMX.td
@@ -681,3 +681,14 @@
(iPTR 0))))),
(v8i8 (MMX_MOVDQ2Qrr VR128:$src))>;
+// CMOV* - Used to implement the SELECT DAG operation. Expanded by the
+// scheduler into a branch sequence.
+// These are expanded by the scheduler.
+let Uses = [EFLAGS], usesCustomDAGSchedInserter = 1 in {
+ def CMOV_V1I64 : I<0, Pseudo,
+ (outs VR64:$dst), (ins VR64:$t, VR64:$f, i8imm:$cond),
+ "#CMOV_V1I64 PSEUDO!",
+ [(set VR64:$dst,
+ (v1i64 (X86cmov VR64:$t, VR64:$f, imm:$cond,
+ EFLAGS)))]>;
+}