1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7 | FileCheck %s 2 3 ; Make sure that the conversion between v4i8 to v2i16 is not a simple bitcast. 4 ; CHECK: prom_bug 5 ; CHECK: shufb 6 ; CHECK: movd 7 ; CHECK: movw 8 ; CHECK: ret 9 define void @prom_bug(<4 x i8> %t, i16* %p) { 10 %r = bitcast <4 x i8> %t to <2 x i16> 11 %o = extractelement <2 x i16> %r, i32 0 12 store i16 %o, i16* %p 13 ret void 14 } 15 16
