; RUN: llc --force-dwarf-frame-section --exception-model=arm %s -o - | FileCheck %s
; RUN: llc --filetype=obj %s --exception-model=arm -o - | llvm-readelf -s --unwind - | FileCheck %s --check-prefix=UNWIND
target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
; Triple tweaked so we get 16-byte stack alignment and better test coverage.
target triple = "armv7m-none-nacl-android"
; -Oz
; volatile int a, b, c, d, e, f, g, h, i;
;
; int x() {
; int r = (a + b) / (c + d) + e + f / g + h + i;
; return r + 1;
; }
;
; int y() {
; int r = (a + b) / (c + d) + e + f / g + h + i;
; return r + 2;
; }
@a = hidden global i32 0, align 4
@b = hidden global i32 0, align 4
@c = hidden global i32 0, align 4
@d = hidden global i32 0, align 4
@e = hidden global i32 0, align 4
@f = hidden global i32 0, align 4
@g = hidden global i32 0, align 4
@h = hidden global i32 0, align 4
@i = hidden global i32 0, align 4
define hidden i32 @x() local_unnamed_addr #0 {
entry:
%0 = load volatile i32, ptr @a, align 4
%1 = load volatile i32, ptr @b, align 4
%add = add nsw i32 %1, %0
%2 = load volatile i32, ptr @c, align 4
%3 = load volatile i32, ptr @d, align 4
%add1 = add nsw i32 %3, %2
%div = sdiv i32 %add, %add1
%4 = load volatile i32, ptr @e, align 4
%5 = load volatile i32, ptr @f, align 4
%6 = load volatile i32, ptr @g, align 4
%div3 = sdiv i32 %5, %6
%7 = load volatile i32, ptr @h, align 4
%8 = load volatile i32, ptr @i, align 4
%add2 = add i32 %div, 1
%add4 = add i32 %add2, %4
%add5 = add i32 %add4, %div3
%add6 = add i32 %add5, %7
%add7 = add i32 %add6, %8
ret i32 %add7
}
; CHECK-LABEL: x:
; CHECK: ldr r0, .LCPI0_0
; CHECK-NEXT: pac r12, lr, sp
; CHECK-NEXT: .pad #8
; CHECK-NEXT: .save {ra_auth_code, lr}
; CHECK-NEXT: strd r12, lr, [sp, #-16]!
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset lr, -12
; CHECK-NEXT: .cfi_offset ra_auth_code, -16
; CHECK-NEXT: bl OUTLINED_FUNCTION_0
; CHECK-NEXT: ldrd r12, lr, [sp], #16
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore lr
; CHECK-NEXT: .cfi_undefined ra_auth_code
; CHECK-NEXT: aut r12, lr, sp
; CHECK-NEXT: adds r0, #1
; CHECK-NEXT: bx lr
define hidden i32 @y() local_unnamed_addr #0 {
entry:
%0 = load volatile i32, ptr @a, align 4
%1 = load volatile i32, ptr @b, align 4
%add = add nsw i32 %1, %0
%2 = load volatile i32, ptr @c, align 4
%3 = load volatile i32, ptr @d, align 4
%add1 = add nsw i32 %3, %2
%div = sdiv i32 %add, %add1
%4 = load volatile i32, ptr @e, align 4
%5 = load volatile i32, ptr @f, align 4
%6 = load volatile i32, ptr @g, align 4
%div3 = sdiv i32 %5, %6
%7 = load volatile i32, ptr @h, align 4
%8 = load volatile i32, ptr @i, align 4
%add2 = add i32 %div, 2
%add4 = add i32 %add2, %4
%add5 = add i32 %add4, %div3
%add6 = add i32 %add5, %7
%add7 = add i32 %add6, %8
ret i32 %add7
}
; CHECK-LABEL: y:
; CHECK: ldr r0, .LCPI1_0
; CHECK-NEXT: pac r12, lr, sp
; CHECK-NEXT: .pad #8
; CHECK-NEXT: .save {ra_auth_code, lr}
; CHECK-NEXT: strd r12, lr, [sp, #-16]!
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: .cfi_offset lr, -12
; CHECK-NEXT: .cfi_offset ra_auth_code, -16
; CHECK-NEXT: bl OUTLINED_FUNCTION_0
; CHECK-NEXT: ldrd r12, lr, [sp], #16
; CHECK-NEXT: .cfi_def_cfa_offset 0
; CHECK-NEXT: .cfi_restore lr
; CHECK-NEXT: .cfi_undefined ra_auth_code
; CHECK-NEXT: aut r12, lr, sp
; CHECK-NEXT: adds r0, #2
; CHECK-NEXT: bx lr
; CHECK-LABEL: OUTLINED_FUNCTION_0:
; CHECK-NOT: pac
; CHECK-NOT: aut
; CHECK-NOT: r12
; CHECK: bx lr
attributes #0 = { minsize nofree norecurse nounwind optsize uwtable "sign-return-address"="non-leaf"}
!llvm.module.flags = !{!0, !1, !2}
!0 = !{i32 8, !"branch-target-enforcement", i32 0}
!1 = !{i32 8, !"sign-return-address", i32 1}
!2 = !{i32 8, !"sign-return-address-all", i32 0}
; UNWIND-LABEL: FunctionAddress: 0x0
; UNWIND: 0xB4 ; pop ra_auth_code
; UNWIND-NEXT: 0x84 0x00 ; pop {lr}
; UNWIND-NEXT: 0x01 ; vsp = vsp + 8
; UNWIND-NEXT: 0xB0 ; finish
; UNWIND-LABEL: FunctionAddress: 0x20
; UNWIND: 0xB4 ; pop ra_auth_code
; UNWIND-NEXT: 0x84 0x00 ; pop {lr}
; UNWIND-NEXT: 0x01 ; vsp = vsp + 8
; UNWIND-NEXT: 0xB0 ; finish
; UNWIND-LABEL: FunctionAddress: 0x40
; UNWIND: Opcodes [
; UNWIND-NEXT: 0xB0 ; finish
; UNWINND-LABEL: 00000041 {{.*}} OUTLINED_FUNCTION_0
; UNWINND-LABEL: 00000001 {{.*}} x
; UNWINND-LABEL: 00000021 {{.*}} y
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