Initial patch by Oleg Ranevskyy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220945
91177308-0d34-0410-b5e6-
96231b3b80d8
TransformToType[i] = MVT::Other;
if (PreferredAction == TypeScalarizeVector)
ValueTypeActions.setTypeAction(VT, TypeScalarizeVector);
TransformToType[i] = MVT::Other;
if (PreferredAction == TypeScalarizeVector)
ValueTypeActions.setTypeAction(VT, TypeScalarizeVector);
+ else if (PreferredAction == TypeSplitVector)
ValueTypeActions.setTypeAction(VT, TypeSplitVector);
ValueTypeActions.setTypeAction(VT, TypeSplitVector);
+ else
+ // Set type action according to the number of elements.
+ ValueTypeActions.setTypeAction(VT, NElts == 1 ? TypeScalarizeVector
+ : TypeSplitVector);
} else {
TransformToType[i] = NVT;
ValueTypeActions.setTypeAction(VT, TypeWidenVector);
} else {
TransformToType[i] = NVT;
ValueTypeActions.setTypeAction(VT, TypeWidenVector);
--- /dev/null
+; RUN: llc -march=aarch64 -mcpu=bogus -o - %s
+
+; Fix the bug in PR20557. Set mcpu to a bogus name, llc will crash in type
+; legalization.
+define <4 x float> @fneg4(<4 x float> %x) {
+ %sub = fsub <4 x float> zeroinitializer, %x
+ ret <4 x float> %sub
+}