1 ; RUN: llc < %s -march=mips -mcpu=mips2 | FileCheck %s -check-prefix=ALL
3 ; This test triggered a bug in the vector splitting where the type legalizer
4 ; attempted to extract the element with by storing the vector, then reading
5 ; an element back. However, the address calculation was:
6 ; Base + Index * (EltSizeInBits / 8)
7 ; and EltSizeInBits was 1. This caused the index to be forgotten.
8 define i1 @via_stack_bug(i8 signext %idx) {
9 %1 = extractelement <2 x i1> <i1 false, i1 true>, i8 %idx
13 ; ALL-LABEL: via_stack_bug:
14 ; ALL-DAG: addiu [[ONE:\$[0-9]+]], $zero, 1
15 ; ALL-DAG: sh [[ONE]], 6($sp)
16 ; ALL-DAG: andi [[MASKED_IDX:\$[0-9]+]], $4, 1
17 ; ALL-DAG: addiu [[VPTR:\$[0-9]+]], $sp, 6
18 ; ALL-DAG: or [[EPTR:\$[0-9]+]], [[VPTR]], [[MASKED_IDX]]
19 ; ALL: lbu $2, 0([[EPTR]])