1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=vector-combine -S -mtriple=aarch64-- | FileCheck %s --check-prefixes=CHECK 3 4target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 5target triple = "aarch64-unknown-linux-gnu" 6 7; This test checks we are not crashing with TTI when trying to get shuffle cost. 8; This test also check that shuffle mask <vscale x 4 x i32> zeroinitializer is 9; not narrowed into <0, 1, 0, 1, ...>, which we cannot reason if it's a valid 10; splat or not. 11 12define <vscale x 8 x i16> @bitcast_shuffle(<vscale x 4 x i32> %a) { 13; CHECK-LABEL: @bitcast_shuffle( 14; CHECK-NEXT: [[I:%.*]] = shufflevector <vscale x 4 x i32> [[A:%.*]], <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer 15; CHECK-NEXT: [[R:%.*]] = bitcast <vscale x 4 x i32> [[I]] to <vscale x 8 x i16> 16; CHECK-NEXT: ret <vscale x 8 x i16> [[R]] 17; 18 %i = shufflevector <vscale x 4 x i32> %a, <vscale x 4 x i32> undef, <vscale x 4 x i32> zeroinitializer 19 %r = bitcast <vscale x 4 x i32> %i to <vscale x 8 x i16> 20 ret <vscale x 8 x i16> %r 21} 22