1# RUN: not llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s 2>&1 | FileCheck %s 2# This test ensures that an error is reported when an unknown subregister index 3# is encountered. 4 5--- | 6 7 define zeroext i1 @t(i1 %c) { 8 entry: 9 ret i1 %c 10 } 11 12... 13--- 14name: t 15isSSA: true 16tracksRegLiveness: true 17registers: 18 - { id: 0, class: gr32 } 19 - { id: 1, class: gr8 } 20 - { id: 2, class: gr8 } 21body: | 22 bb.0.entry: 23 %0 = COPY %edi 24 ; CHECK: [[@LINE+1]]:18: use of unknown subregister index 'bit8' 25 %1 = COPY %0:bit8 26 %2 = AND8ri %1, 1, implicit-def %eflags 27 %al = COPY %2 28 RETQ %al 29... 30