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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 52; RUN: llc --force-dwarf-frame-section %s -o - | FileCheck %s3; RUN: llc --filetype=obj %s -o - | llvm-readelf --unwind - | FileCheck %s --check-prefix=UNWIND4target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"5target triple = "thumbv8.1m.main-arm-none-eabi"6 7; C++8; int g(int);9;10; int f(int n, ...) {11; __builtin_va_list ap;12; __builtin_va_start(ap, n);13; int s = 0;14; for (int i = 0; i < n; ++i)15; s += g(__builtin_va_arg(ap, int));16; __builtin_va_end(ap);17; return s;18; }19 20%"struct.std::__va_list" = type { ptr }21 22define hidden i32 @_Z1fiz(i32 %n, ...) local_unnamed_addr #0 {23; CHECK-LABEL: _Z1fiz:24; CHECK: .cfi_sections .debug_frame25; CHECK-NEXT: .cfi_startproc26; CHECK-NEXT: @ %bb.0: @ %entry27; CHECK-NEXT: pac r12, lr, sp28; CHECK-NEXT: .pad #1229; CHECK-NEXT: sub sp, #1230; CHECK-NEXT: .cfi_def_cfa_offset 1231; CHECK-NEXT: .save {r4, r5, r7, ra_auth_code, lr}32; CHECK-NEXT: push.w {r4, r5, r7, r12, lr}33; CHECK-NEXT: .cfi_def_cfa_offset 3234; CHECK-NEXT: .cfi_offset lr, -1635; CHECK-NEXT: .cfi_offset ra_auth_code, -2036; CHECK-NEXT: .cfi_offset r7, -2437; CHECK-NEXT: .cfi_offset r5, -2838; CHECK-NEXT: .cfi_offset r4, -3239; CHECK-NEXT: .pad #840; CHECK-NEXT: sub sp, #841; CHECK-NEXT: .cfi_def_cfa_offset 4042; CHECK-NEXT: mov r4, r043; CHECK-NEXT: add r0, sp, #2844; CHECK-NEXT: movs r5, #045; CHECK-NEXT: stm r0!, {r1, r2, r3}46; CHECK-NEXT: add r0, sp, #2847; CHECK-NEXT: cmp r4, #148; CHECK-NEXT: str r0, [sp, #4]49; CHECK-NEXT: blt .LBB0_250; CHECK-NEXT: .LBB0_1: @ %for.body51; CHECK-NEXT: @ =>This Inner Loop Header: Depth=152; CHECK-NEXT: ldr r0, [sp, #4]53; CHECK-NEXT: adds r1, r0, #454; CHECK-NEXT: str r1, [sp, #4]55; CHECK-NEXT: ldr r0, [r0]56; CHECK-NEXT: bl _Z1gi57; CHECK-NEXT: add r5, r058; CHECK-NEXT: subs r4, #159; CHECK-NEXT: bne .LBB0_160; CHECK-NEXT: .LBB0_2: @ %for.cond.cleanup61; CHECK-NEXT: mov r0, r562; CHECK-NEXT: add sp, #863; CHECK-NEXT: pop.w {r4, r5, r7, r12, lr}64; CHECK-NEXT: add sp, #1265; CHECK-NEXT: aut r12, lr, sp66; CHECK-NEXT: bx lr67entry:68 %ap = alloca %"struct.std::__va_list", align 469 call void @llvm.va_start(ptr nonnull %ap)70 %cmp7 = icmp sgt i32 %n, 071 br i1 %cmp7, label %for.body.lr.ph, label %for.cond.cleanup72 73for.body.lr.ph: ; preds = %entry74 br label %for.body75 76for.cond.cleanup: ; preds = %for.body, %entry77 %s.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]78 call void @llvm.va_end(ptr nonnull %ap)79 ret i32 %s.0.lcssa80 81for.body: ; preds = %for.body.lr.ph, %for.body82 %i.09 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ]83 %s.08 = phi i32 [ 0, %for.body.lr.ph ], [ %add, %for.body ]84 %argp.cur = load ptr, ptr %ap, align 485 %argp.next = getelementptr inbounds i8, ptr %argp.cur, i32 486 store ptr %argp.next, ptr %ap, align 487 %0 = load i32, ptr %argp.cur, align 488 %call = call i32 @_Z1gi(i32 %0)89 %add = add nsw i32 %call, %s.0890 %inc = add nuw nsw i32 %i.09, 191 %exitcond.not = icmp eq i32 %inc, %n92 br i1 %exitcond.not, label %for.cond.cleanup, label %for.body93}94 95declare void @llvm.va_start(ptr) #196declare void @llvm.va_end(ptr) #197 98declare dso_local i32 @_Z1gi(i32) local_unnamed_addr99 100attributes #0 = { optsize "sign-return-address"="non-leaf"}101attributes #1 = { nounwind "sign-return-address"="non-leaf"}102 103!llvm.module.flags = !{!0, !1, !2}104 105!0 = !{i32 8, !"branch-target-enforcement", i32 0}106!1 = !{i32 8, !"sign-return-address", i32 1}107!2 = !{i32 8, !"sign-return-address-all", i32 0}108 109; UNWIND-LABEL: FunctionAddress110; UNWIND: 0x01 ; vsp = vsp + 8111; UNWIND-NEXT: 0x80 0x0B ; pop {r4, r5, r7}112; UNWIND-NEXT: 0xB4 ; pop ra_auth_code113; UNWIND-NEXT: 0x84 0x00 ; pop {lr}114; UNWIND-NEXT: 0x02 ; vsp = vsp + 12115 116