1 # RUN: llc -march=x86-64 -start-after machine-sink -stop-after machine-sink -o /dev/null %s | FileCheck %s 2 # This test ensures that the MIR parser parses subregisters in register operands 3 # correctly. 4 5 --- | 6 7 define zeroext i1 @t(i1 %c) { 8 entry: 9 ret i1 %c 10 } 11 12 ... 13 --- 14 name: t 15 isSSA: true 16 tracksRegLiveness: true 17 registers: 18 - { id: 0, class: gr32 } 19 - { id: 1, class: gr8 } 20 - { id: 2, class: gr8 } 21 body: | 22 bb.0.entry: 23 liveins: %edi 24 ; CHECK: %0 = COPY %edi 25 ; CHECK-NEXT: %1 = COPY %0:sub_8bit 26 %0 = COPY %edi 27 %1 = COPY %0:sub_8bit 28 %2 = AND8ri %1, 1, implicit-def %eflags 29 %al = COPY %2 30 RETQ %al 31 ... 32 33
