1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2 2; RUN: llc -mtriple=thumbv8m.main-none-eabi %s -o - | FileCheck %s 3 4define i32 @test_leaf(i32 %arg0, i32 %arg1, i32 %arg2, i32 %arg3, i32 %x) "sign-return-address"="all" { 5; CHECK-LABEL: test_leaf: 6; CHECK: @ %bb.0: @ %entry 7; CHECK-NEXT: pac r12, lr, sp 8; CHECK-NEXT: .save {ra_auth_code} 9; CHECK-NEXT: str r12, [sp, #-4]! 10; CHECK-NEXT: ldr r0, [sp, #4] 11; CHECK-NEXT: ldr r12, [sp], #4 12; CHECK-NEXT: aut r12, lr, sp 13; CHECK-NEXT: bx lr 14entry: 15 ret i32 %x 16} 17 18define i32 @test_non_leaf(i32 %arg0, i32 %arg1, i32 %arg2, i32 %arg3, i32 %x) "sign-return-address"="all" { 19; CHECK-LABEL: test_non_leaf: 20; CHECK: @ %bb.0: @ %entry 21; CHECK-NEXT: pac r12, lr, sp 22; CHECK-NEXT: .save {r7, ra_auth_code, lr} 23; CHECK-NEXT: push.w {r7, r12, lr} 24; CHECK-NEXT: .pad #4 25; CHECK-NEXT: sub sp, #4 26; CHECK-NEXT: bl otherfn 27; CHECK-NEXT: ldr r0, [sp, #16] 28; CHECK-NEXT: add sp, #4 29; CHECK-NEXT: pop.w {r7, r12, lr} 30; CHECK-NEXT: aut r12, lr, sp 31; CHECK-NEXT: bx lr 32entry: 33 call void @otherfn() 34 ret i32 %x 35} 36 37declare void @otherfn(...) 38 39!llvm.module.flags = !{!0, !1, !2} 40 41!0 = !{i32 8, !"branch-target-enforcement", i32 0} 42!1 = !{i32 8, !"sign-return-address", i32 1} 43!2 = !{i32 8, !"sign-return-address-all", i32 1} 44