GlobalISel: Implement widen for extract_vector_elt elt type
llvm-svn: 351871
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index ed56ca9..7ec2c3d 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -973,13 +973,28 @@
Observer.changedInstr(MI);
return Legalized;
}
- case TargetOpcode::G_EXTRACT_VECTOR_ELT:
+ case TargetOpcode::G_EXTRACT_VECTOR_ELT: {
+ if (TypeIdx == 0) {
+ unsigned VecReg = MI.getOperand(1).getReg();
+ LLT VecTy = MRI.getType(VecReg);
+ Observer.changingInstr(MI);
+
+ widenScalarSrc(MI, LLT::vector(VecTy.getNumElements(),
+ WideTy.getSizeInBits()),
+ 1, TargetOpcode::G_SEXT);
+
+ widenScalarDst(MI, WideTy, 0);
+ Observer.changedInstr(MI);
+ return Legalized;
+ }
+
if (TypeIdx != 2)
return UnableToLegalize;
Observer.changingInstr(MI);
widenScalarSrc(MI, WideTy, 2, TargetOpcode::G_SEXT);
Observer.changedInstr(MI);
return Legalized;
+ }
case TargetOpcode::G_FADD:
case TargetOpcode::G_FMUL:
case TargetOpcode::G_FSUB:
