1; RUN: opt -instcombine -S < %s | FileCheck %s 2 3; This vscale udiv with a power-of-2 spalt on the rhs should not crash opt 4 5; CHECK: define <vscale x 2 x i32> @udiv_pow2_vscale(<vscale x 2 x i32> %lhs) 6define <vscale x 2 x i32> @udiv_pow2_vscale(<vscale x 2 x i32> %lhs) { 7 %splatter = insertelement <vscale x 2 x i32> undef, i32 2, i32 0 8 %rhs = shufflevector <vscale x 2 x i32> %splatter, 9 <vscale x 2 x i32> undef, 10 <vscale x 2 x i32> zeroinitializer 11 %res = udiv <vscale x 2 x i32> %lhs, %rhs 12 ret <vscale x 2 x i32> %res 13} 14 15; This fixed width udiv with a power-of-2 splat on the rhs should also not 16; crash, and instcombine should eliminate the udiv 17 18; CHECK-LABEL: define <2 x i32> @udiv_pow2_fixed(<2 x i32> %lhs) 19; CHECK-NOT: udiv 20define <2 x i32> @udiv_pow2_fixed(<2 x i32> %lhs) { 21 %splatter = insertelement <2 x i32> undef, i32 2, i32 0 22 %rhs = shufflevector <2 x i32> %splatter, 23 <2 x i32> undef, 24 <2 x i32> zeroinitializer 25 %res = udiv <2 x i32> %lhs, %rhs 26 ret <2 x i32> %res 27} 28