Index: lib/Target/AArch64/AArch64ISelLowering.cpp =================================================================== --- lib/Target/AArch64/AArch64ISelLowering.cpp +++ lib/Target/AArch64/AArch64ISelLowering.cpp @@ -237,6 +237,10 @@ setOperationAction(ISD::SDIVREM, MVT::i32, Expand); setOperationAction(ISD::SDIVREM, MVT::i64, Expand); + for (MVT VT : MVT::vector_valuetypes()) { + setOperationAction(ISD::SDIVREM, VT, Expand); + setOperationAction(ISD::UDIVREM, VT, Expand); + } setOperationAction(ISD::SREM, MVT::i32, Expand); setOperationAction(ISD::SREM, MVT::i64, Expand); setOperationAction(ISD::UDIVREM, MVT::i32, Expand); Index: test/CodeGen/AArch64/divrem.ll =================================================================== --- /dev/null +++ test/CodeGen/AArch64/divrem.ll @@ -0,0 +1,25 @@ +; RUN: llc -mtriple=aarch64-none-linux-gnu < %s -mattr=+neon | FileCheck %s + +; SDIVREM/UDIVREM DAG nodes are generated but expanded when lowering and +; should not generate select error. +define <2 x i32> @test_udivrem(<2 x i32> %x, < 2 x i32> %y, < 2 x i32>* %z) { +; CHECK-LABEL: test_udivrem +; CHECK-DAG: udivrem +; CHECK-NOT: LLVM ERROR: Cannot select + %div = udiv <2 x i32> %x, %y + store <2 x i32> %div, <2 x i32>* %z + %1 = urem <2 x i32> %x, %y + ret <2 x i32> %1 +} + +define <4 x i32> @test_sdivrem(<4 x i32> %x, <4 x i32>* %y) { +; CHECK-LABEL: test_sdivrem +; CHECK-DAG: sdivrem +; CHECK-NOT: LLVM ERROR: Cannot select + %div = sdiv <4 x i32> %x, < i32 20, i32 20, i32 20, i32 20 > + store <4 x i32> %div, <4 x i32>* %y + %1 = srem <4 x i32> %x, < i32 20, i32 20, i32 20, i32 20 > + ret <4 x i32> %1 +} + +