test/CodeGen/Mips/GlobalISel/legalizer/var_arg.mir

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

  @.str = private unnamed_addr constant [11 x i8] c"string %s\0A\00", align 1
  declare void @llvm.va_start(i8*) #0
  declare void @llvm.va_copy(i8*, i8*) #0
  declare i32 @printf(i8*, ...)

  define void @testVaCopyArg(i8* %fmt, ...) {
  entry:
    %fmt.addr = alloca i8*, align 4
    %ap = alloca i8*, align 4
    %aq = alloca i8*, align 4
    %s = alloca i8*, align 4
    store i8* %fmt, i8** %fmt.addr, align 4
    %ap1 = bitcast i8** %ap to i8*
    call void @llvm.va_start(i8* %ap1)
    %0 = bitcast i8** %aq to i8*
    %1 = bitcast i8** %ap to i8*
    call void @llvm.va_copy(i8* %0, i8* %1)
    %argp.cur = load i8*, i8** %aq, align 4
    %argp.next = getelementptr inbounds i8, i8* %argp.cur, i32 4
    store i8* %argp.next, i8** %aq, align 4
    %2 = bitcast i8* %argp.cur to i8**
    %3 = load i8*, i8** %2, align 4
    store i8* %3, i8** %s, align 4
    %4 = load i8*, i8** %s, align 4
    %call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i8* %4)
    ret void
  }

...
---
name:            testVaCopyArg
alignment:       4
tracksRegLiveness: true
liveins:
  - { reg: '$a0' }
fixedStack:
  - { id: 0, offset: 12, size: 4, alignment: 4, isImmutable: true }
  - { id: 1, offset: 8, size: 4, alignment: 8, isImmutable: true }
  - { id: 2, offset: 4, size: 4, alignment: 4, isImmutable: true }
  - { id: 3, offset: 4, size: 4, alignment: 4, isImmutable: true }
stack:
  - { id: 0, name: fmt.addr, size: 4, alignment: 4 }
  - { id: 1, name: ap, size: 4, alignment: 4 }
  - { id: 2, name: aq, size: 4, alignment: 4 }
  - { id: 3, name: s, size: 4, alignment: 4 }
machineFunctionInfo: {}
body:             |
  bb.1.entry:
    liveins: $a0, $a1, $a2, $a3

    ; MIPS32-LABEL: name: testVaCopyArg
    ; MIPS32: liveins: $a0, $a1, $a2, $a3
    ; MIPS32: [[COPY:%[0-9]+]]:_(p0) = COPY $a0
    ; MIPS32: [[COPY1:%[0-9]+]]:_(s32) = COPY $a1
    ; MIPS32: [[FRAME_INDEX:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.1
    ; MIPS32: G_STORE [[COPY1]](s32), [[FRAME_INDEX]](p0) :: (store 4 into %fixed-stack.1)
    ; MIPS32: [[COPY2:%[0-9]+]]:_(s32) = COPY $a2
    ; MIPS32: [[FRAME_INDEX1:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.2
    ; MIPS32: G_STORE [[COPY2]](s32), [[FRAME_INDEX1]](p0) :: (store 4 into %fixed-stack.2)
    ; MIPS32: [[COPY3:%[0-9]+]]:_(s32) = COPY $a3
    ; MIPS32: [[FRAME_INDEX2:%[0-9]+]]:_(p0) = G_FRAME_INDEX %fixed-stack.3
    ; MIPS32: G_STORE [[COPY3]](s32), [[FRAME_INDEX2]](p0) :: (store 4 into %fixed-stack.3)
    ; MIPS32: [[GV:%[0-9]+]]:_(p0) = G_GLOBAL_VALUE @.str
    ; MIPS32: [[COPY4:%[0-9]+]]:_(p0) = COPY [[GV]](p0)
    ; MIPS32: [[FRAME_INDEX3:%[0-9]+]]:_(p0) = G_FRAME_INDEX %stack.0.fmt.addr
    ; MIPS32: [[FRAME_INDEX4:%[0-9]+]]:_(p0) = G_FRAME_INDEX %stack.1.ap
    ; MIPS32: [[FRAME_INDEX5:%[0-9]+]]:_(p0) = G_FRAME_INDEX %stack.2.aq
    ; MIPS32: [[FRAME_INDEX6:%[0-9]+]]:_(p0) = G_FRAME_INDEX %stack.3.s
    ; MIPS32: G_STORE [[COPY]](p0), [[FRAME_INDEX3]](p0) :: (store 4 into %ir.fmt.addr)
    ; MIPS32: G_VASTART [[FRAME_INDEX4]](p0) :: (store 4 into %ir.ap1, align 1)
    ; MIPS32: [[LOAD:%[0-9]+]]:_(p0) = G_LOAD [[FRAME_INDEX4]](p0) :: (load 4)
    ; MIPS32: G_STORE [[LOAD]](p0), [[FRAME_INDEX5]](p0) :: (store 4)
    ; MIPS32: [[LOAD1:%[0-9]+]]:_(p0) = G_LOAD [[FRAME_INDEX5]](p0) :: (load 4 from %ir.aq)
    ; MIPS32: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 4
    ; MIPS32: [[GEP:%[0-9]+]]:_(p0) = G_GEP [[LOAD1]], [[C]](s32)
    ; MIPS32: G_STORE [[GEP]](p0), [[FRAME_INDEX5]](p0) :: (store 4 into %ir.aq)
    ; MIPS32: [[LOAD2:%[0-9]+]]:_(p0) = G_LOAD [[LOAD1]](p0) :: (load 4 from %ir.2)
    ; MIPS32: G_STORE [[LOAD2]](p0), [[FRAME_INDEX6]](p0) :: (store 4 into %ir.s)
    ; MIPS32: [[LOAD3:%[0-9]+]]:_(p0) = G_LOAD [[FRAME_INDEX6]](p0) :: (load 4 from %ir.s)
    ; MIPS32: ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    ; MIPS32: $a0 = COPY [[COPY4]](p0)
    ; MIPS32: $a1 = COPY [[LOAD3]](p0)
    ; MIPS32: JAL @printf, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit $a1, implicit-def $v0
    ; MIPS32: ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    ; MIPS32: RetRA
    %0:_(p0) = COPY $a0
    %1:_(s32) = COPY $a1
    %2:_(p0) = G_FRAME_INDEX %fixed-stack.2
    G_STORE %1(s32), %2(p0) :: (store 4 into %fixed-stack.2)
    %3:_(s32) = COPY $a2
    %4:_(p0) = G_FRAME_INDEX %fixed-stack.1
    G_STORE %3(s32), %4(p0) :: (store 4 into %fixed-stack.1)
    %5:_(s32) = COPY $a3
    %6:_(p0) = G_FRAME_INDEX %fixed-stack.0
    G_STORE %5(s32), %6(p0) :: (store 4 into %fixed-stack.0)
    %18:_(p0) = G_GLOBAL_VALUE @.str
    %17:_(p0) = COPY %18(p0)
    %7:_(p0) = G_FRAME_INDEX %stack.0.fmt.addr
    %8:_(p0) = G_FRAME_INDEX %stack.1.ap
    %9:_(p0) = G_FRAME_INDEX %stack.2.aq
    %10:_(p0) = G_FRAME_INDEX %stack.3.s
    G_STORE %0(p0), %7(p0) :: (store 4 into %ir.fmt.addr)
    G_VASTART %8(p0) :: (store 4 into %ir.ap1, align 1)
    G_INTRINSIC_W_SIDE_EFFECTS intrinsic(@llvm.va_copy), %9(p0), %8(p0)
    %11:_(p0) = G_LOAD %9(p0) :: (load 4 from %ir.aq)
    %12:_(s32) = G_CONSTANT i32 4
    %13:_(p0) = G_GEP %11, %12(s32)
    G_STORE %13(p0), %9(p0) :: (store 4 into %ir.aq)
    %14:_(p0) = G_LOAD %11(p0) :: (load 4 from %ir.2)
    G_STORE %14(p0), %10(p0) :: (store 4 into %ir.s)
    %15:_(p0) = G_LOAD %10(p0) :: (load 4 from %ir.s)
    ADJCALLSTACKDOWN 16, 0, implicit-def $sp, implicit $sp
    $a0 = COPY %17(p0)
    $a1 = COPY %15(p0)
    JAL @printf, csr_o32, implicit-def $ra, implicit-def $sp, implicit $a0, implicit $a1, implicit-def $v0
    ADJCALLSTACKUP 16, 0, implicit-def $sp, implicit $sp
    RetRA

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