test/CodeGen/Mips/GlobalISel/regbankselect/stack_args.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -O0 -mtriple=mipsel-linux-gnu -run-pass=regbankselect -verify-machineinstrs %s -o - | FileCheck %s -check-prefixes=MIPS32
--- |

  declare i32 @f(i32, i32, i32, i32, i32)
  define void @g(i32, i32, i32, i32, i32) {entry: ret void}

...
---
name:            g
alignment:       2
legalized:       true
tracksRegLiveness: true
fixedStack:
  - { id: 0, offset: 16, size: 4, alignment: 8, stack-id: 0, isImmutable: true }
body:             |
 bb.1.entry:
    liveins: $a0, $a1, $a2, $a3

    ; MIPS32-LABEL: name: g
    ; MIPS32: liveins: $a0, $a1, $a2, $a3
    ; MIPS32: [[COPY:%[0-9]+]]:gprb(s32) = COPY $a0
    ; MIPS32: [[COPY1:%[0-9]+]]:gprb(s32) = COPY $a1
    ; MIPS32: [[COPY2:%[0-9]+]]:gprb(s32) = COPY $a2
    ; MIPS32: [[COPY3:%[0-9]+]]:gprb(s32) = COPY $a3
    ; MIPS32: [[FRAME_INDEX:%[0-9]+]]:gprb(p0) = G_FRAME_INDEX %fixed-stack.0
    ; MIPS32: [[LOAD:%[0-9]+]]:gprb(s32) = G_LOAD [[FRAME_INDEX]](p0) :: (load 4 from %fixed-stack.0, align 8)
    ; MIPS32: ADJCALLSTACKDOWN 24, 0, implicit-def $sp, implicit $sp
    ; MIPS32: $a0 = COPY [[COPY]](s32)
    ; MIPS32: $a1 = COPY [[COPY1]](s32)
    ; MIPS32: $a2 = COPY [[COPY2]](s32)
    ; MIPS32: $a3 = COPY [[COPY3]](s32)
    ; MIPS32: [[COPY4:%[0-9]+]]:gprb(p0) = COPY $sp
    ; MIPS32: [[C:%[0-9]+]]:gprb(s32) = G_CONSTANT i32 16
    ; MIPS32: [[GEP:%[0-9]+]]:gprb(p0) = G_GEP [[COPY4]], [[C]](s32)
    ; MIPS32: G_STORE [[LOAD]](s32), [[GEP]](p0) :: (store 4 into stack + 16)
    ; MIPS32: JAL @f, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit $a1, implicit $a2, implicit $a3, implicit-def $v0
    ; MIPS32: [[COPY5:%[0-9]+]]:gprb(s32) = COPY $v0
    ; MIPS32: ADJCALLSTACKUP 24, 0, implicit-def $sp, implicit $sp
    ; MIPS32: $v0 = COPY [[COPY5]](s32)
    ; MIPS32: RetRA implicit $v0
    %0:_(s32) = COPY $a0
    %1:_(s32) = COPY $a1
    %2:_(s32) = COPY $a2
    %3:_(s32) = COPY $a3
    %5:_(p0) = G_FRAME_INDEX %fixed-stack.0
    %4:_(s32) = G_LOAD %5(p0) :: (load 4 from %fixed-stack.0, align 8)
    ADJCALLSTACKDOWN 24, 0, implicit-def $sp, implicit $sp
    $a0 = COPY %0(s32)
    $a1 = COPY %1(s32)
    $a2 = COPY %2(s32)
    $a3 = COPY %3(s32)
    %7:_(p0) = COPY $sp
    %8:_(s32) = G_CONSTANT i32 16
    %9:_(p0) = G_GEP %7, %8(s32)
    G_STORE %4(s32), %9(p0) :: (store 4 into stack + 16, align 4)
    JAL @f, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit $a1, implicit $a2, implicit $a3, implicit-def $v0
    %6:_(s32) = COPY $v0
    ADJCALLSTACKUP 24, 0, implicit-def $sp, implicit $sp
    $v0 = COPY %6(s32)
    RetRA implicit $v0

...