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1# RUN: llc -mtriple=x86_64 -run-pass none -o - %s | FileCheck %s2# This test ensures that the MIR parser parses simple register allocation hints3# correctly.4 5--- |6 7 define i32 @test(i32 %a, i32 %b) {8 body:9 %c = mul i32 %a, %b10 ret i32 %c11 }12 13...14---15name: test16tracksRegLiveness: true17# CHECK: registers:18# CHECK-NEXT: - { id: 0, class: gr32, preferred-register: '', flags: [ ] }19# CHECK-NEXT: - { id: 1, class: gr32, preferred-register: '$esi', flags: [ ] }20# CHECK-NEXT: - { id: 2, class: gr32, preferred-register: '$edi', flags: [ ] }21registers:22 - { id: 0, class: gr32 }23 - { id: 1, class: gr32, preferred-register: '$esi' }24 - { id: 2, class: gr32, preferred-register: '$edi' }25body: |26 bb.0.body:27 liveins: $edi, $esi28 29 %1 = COPY $esi30 %2 = COPY $edi31 %2 = IMUL32rr %2, %1, implicit-def dead $eflags32 $eax = COPY %233 RET64 killed $eax34...35