1# RUN: llc -mtriple=s390x-linux-gnu -mcpu=z15 -start-before=greedy %s -o - \ 2# RUN: | FileCheck %s 3# 4# Test that two-address reg alloc hints are given so that a SELR becomes LOCR. 5 6 7--- | 8 define i32 @fun(i32 %arg, i32 %arg1, i32 %arg2, ptr %arg3) { ret i32 0 } 9 declare void @foo(i32) 10... 11# CHECK-LABEL: fun 12# CHECK: locr 13 14--- 15name: fun 16alignment: 16 17tracksRegLiveness: true 18registers: 19 - { id: 0, class: gr32bit } 20 - { id: 1, class: gr32bit } 21 - { id: 2, class: gr32bit } 22 - { id: 3, class: gr32bit } 23 - { id: 4, class: gr64bit } 24 - { id: 5, class: grx32bit } 25 - { id: 6, class: grx32bit } 26 - { id: 7, class: addr64bit } 27 - { id: 8, class: grx32bit } 28 - { id: 9, class: grx32bit } 29 - { id: 10, class: gr64bit } 30 - { id: 11, class: gr32bit } 31frameInfo: 32 maxAlignment: 1 33 adjustsStack: true 34 hasCalls: true 35machineFunctionInfo: {} 36body: | 37 bb.0: 38 %5:grx32bit = LHIMux 88 39 %8:grx32bit = LHIMux 77 40 %9:grx32bit = LHIMux 66 41 42 bb.1: 43 %6:grx32bit = LLCMux undef %7:addr64bit, 0, $noreg :: (load (s8) from `ptr undef`) 44 CHIMux %6, 1, implicit-def $cc 45 %11:gr32bit = SELRMux %8, %9:grx32bit, 14, 6, implicit killed $cc 46 CHIMux %6, 2, implicit-def $cc 47 %0:gr32bit = SELRMux %11, %5, 14, 8, implicit killed $cc 48 %10:gr64bit = LGFR %0 49 $r2d = COPY %10 50 CallBRASL @foo, killed $r2d, csr_systemz_elf, implicit-def dead $r14d, implicit-def dead $cc, implicit $fpc 51 J %bb.1 52 53... 54