test/CodeGen/PowerPC/stack-restore-with-setjmp.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=powerpc64le-- -verify-machineinstrs | FileCheck %s
; RUN: llc < %s -mtriple=powerpc64-- -verify-machineinstrs | FileCheck %s \
; RUN:   --check-prefix=BE
%struct.__jmp_buf_tag = type { [64 x i64], i32, %struct.__sigset_t, [8 x i8] }
%struct.__sigset_t = type { [16 x i64] }

@.str = private unnamed_addr constant [33 x i8] c"Successfully returned from main\0A\00", align 1

; Function Attrs: nounwind
define dso_local signext i32 @main(i32 signext %argc, i8** nocapture readnone %argv) local_unnamed_addr #0 {
; CHECK-LABEL: main:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    mfocrf 12, 32
; CHECK-NEXT:    mflr 0
; CHECK-NEXT:    std 31, -8(1)
; CHECK-NEXT:    std 0, 16(1)
; CHECK-NEXT:    stw 12, 8(1)
; CHECK-NEXT:    stdu 1, -784(1)
; CHECK-NEXT:    # kill: def $r3 killed $r3 killed $x3
; CHECK-NEXT:    cmpwi 2, 3, 2
; CHECK-NEXT:    mr 31, 1
; CHECK-NEXT:    li 3, 0
; CHECK-NEXT:    blt 2, .LBB0_3
; CHECK-NEXT:  # %bb.1: # %if.end
; CHECK-NEXT:    addi 3, 31, 112
; CHECK-NEXT:    bl _setjmp
; CHECK-NEXT:    nop
; CHECK-NEXT:    crmove 20, 10
; CHECK-NEXT:    # kill: def $r3 killed $r3 killed $x3
; CHECK-NEXT:    cmpwi 3, 0
; CHECK-NEXT:    crorc 20, 10, 2
; CHECK-NEXT:    crmove 21, 2
; CHECK-NEXT:    bc 4, 20, .LBB0_4
; CHECK-NEXT:  # %bb.2: # %if.end5
; CHECK-NEXT:    addis 3, 2, .L.str@toc@ha
; CHECK-NEXT:    addi 3, 3, .L.str@toc@l
; CHECK-NEXT:    bl printf
; CHECK-NEXT:    nop
; CHECK-NEXT:    # kill: def $r3 killed $r3 killed $x3
; CHECK-NEXT:  .LBB0_3: # %return
; CHECK-NEXT:    extsw 3, 3
; CHECK-NEXT:    addi 1, 31, 784
; CHECK-NEXT:    ld 0, 16(1)
; CHECK-NEXT:    lwz 12, 8(1)
; CHECK-NEXT:    ld 31, -8(1)
; CHECK-NEXT:    mtocrf 32, 12
; CHECK-NEXT:    mtlr 0
; CHECK-NEXT:    blr
; CHECK-NEXT:  .LBB0_4: # %if.then3
; CHECK-NEXT:    ld 4, 0(1)
; CHECK-NEXT:    stdu 4, -16(1)
; CHECK-NEXT:    addi 3, 1, 96
; CHECK-NEXT:    li 4, -1
; CHECK-NEXT:    stb 4, 0(3)
; CHECK-NEXT:    addi 4, 31, 112
; CHECK-NEXT:    bl test
; CHECK-NEXT:    nop
;
; BE-LABEL: main:
; BE:       # %bb.0: # %entry
; BE-NEXT:    mflr 0
; BE-NEXT:    std 31, -8(1)
; BE-NEXT:    std 0, 16(1)
; BE-NEXT:    mfcr 12
; BE-NEXT:    stw 12, 8(1)
; BE-NEXT:    stdu 1, -800(1)
; BE-NEXT:    li 4, 0
; BE-NEXT:    # kill: def $r3 killed $r3 killed $x3
; BE-NEXT:    cmpwi 2, 3, 2
; BE-NEXT:    mr 3, 4
; BE-NEXT:    mr 31, 1
; BE-NEXT:    blt 2, .LBB0_3
; BE-NEXT:  # %bb.1: # %if.end
; BE-NEXT:    addi 3, 31, 128
; BE-NEXT:    bl _setjmp
; BE-NEXT:    nop
; BE-NEXT:    crmove 20, 10
; BE-NEXT:    # kill: def $r3 killed $r3 killed $x3
; BE-NEXT:    cmpwi 3, 0
; BE-NEXT:    crorc 20, 10, 2
; BE-NEXT:    crmove 21, 2
; BE-NEXT:    bc 4, 20, .LBB0_4
; BE-NEXT:  # %bb.2: # %if.end5
; BE-NEXT:    addis 3, 2, .L.str@toc@ha
; BE-NEXT:    addi 3, 3, .L.str@toc@l
; BE-NEXT:    bl printf
; BE-NEXT:    nop
; BE-NEXT:    # kill: def $r3 killed $r3 killed $x3
; BE-NEXT:  .LBB0_3: # %return
; BE-NEXT:    extsw 3, 3
; BE-NEXT:    addi 1, 31, 800
; BE-NEXT:    ld 0, 16(1)
; BE-NEXT:    lwz 12, 8(1)
; BE-NEXT:    ld 31, -8(1)
; BE-NEXT:    mtlr 0
; BE-NEXT:    mtcrf 32, 12 # cr2
; BE-NEXT:    blr
; BE-NEXT:  .LBB0_4: # %if.then3
; BE-NEXT:    ld 4, 0(1)
; BE-NEXT:    stdu 4, -16(1)
; BE-NEXT:    addi 3, 1, 112
; BE-NEXT:    li 4, -1
; BE-NEXT:    stb 4, 0(3)
; BE-NEXT:    addi 4, 31, 128
; BE-NEXT:    bl test
; BE-NEXT:    nop
entry:
  %env_buffer = alloca [1 x %struct.__jmp_buf_tag], align 16
  %cmp = icmp slt i32 %argc, 2
  br i1 %cmp, label %return, label %if.end

if.end:                                           ; preds = %entry
  %0 = bitcast [1 x %struct.__jmp_buf_tag]* %env_buffer to i8*
  call void @llvm.lifetime.start.p0i8(i64 656, i8* nonnull %0) #5
  %arraydecay = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %env_buffer, i64 0, i64 0
  %call = call signext i32 @_setjmp(%struct.__jmp_buf_tag* nonnull %arraydecay) #6
  %cmp1 = icmp ne i32 %argc, 2
  %cmp2 = icmp eq i32 %call, 0
  %or.cond = and i1 %cmp1, %cmp2
  br i1 %or.cond, label %if.then3, label %if.end5

if.then3:                                         ; preds = %if.end
  %1 = alloca [8 x i8], align 16
  %.sub = getelementptr inbounds [8 x i8], [8 x i8]* %1, i64 0, i64 0
  store i8 -1, i8* %.sub, align 16
  call void @test(i8* nonnull %.sub, %struct.__jmp_buf_tag* nonnull %arraydecay) #7
  unreachable

if.end5:                                          ; preds = %if.end
  %call6 = call signext i32 (i8*, ...) @printf(i8* nonnull dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str, i64 0, i64 0))
  call void @llvm.lifetime.end.p0i8(i64 656, i8* nonnull %0) #5
  br label %return

return:                                           ; preds = %entry, %if.end5
  %retval.0 = phi i32 [ %call6, %if.end5 ], [ 0, %entry ]
  ret i32 %retval.0
}

; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)

; Function Attrs: nounwind returns_twice
declare signext i32 @_setjmp(%struct.__jmp_buf_tag*) local_unnamed_addr

; Function Attrs: noreturn
declare void @test(i8*, %struct.__jmp_buf_tag*) local_unnamed_addr

; Function Attrs: nofree nounwind
declare noundef signext i32 @printf(i8* nocapture noundef readonly, ...) local_unnamed_addr

; Function Attrs: argmemonly nofree nosync nounwind willreturn
declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)

attributes #0 = { nounwind }
attributes #6 = { nounwind returns_twice }