1 ; RUN: llc < %s -march=mips -mcpu=mips2 | FileCheck %s -check-prefix=ALL 2 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 10 ret i1 %1 11 } 12 13 ; ALL-LABEL: via_stack_bug: 14 ; ALL-DAG: addiu [[ONE:\$[0-9]+]], $zero, 1 15 ; ALL-DAG: sb [[ONE]], 7($sp) 16 ; ALL-DAG: sb $zero, 6($sp) 17 ; ALL-DAG: addiu [[VPTR:\$[0-9]+]], $sp, 6 18 ; ALL-DAG: addu [[EPTR:\$[0-9]+]], $4, [[VPTR]] 19 ; ALL: lbu $2, 0([[EPTR]]) 20
