derek.holloway
7502bf64a4
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44 lines
1.3 KiB
LLVM
44 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc -mtriple=thumbv8m.main-none-eabi %s -o - | FileCheck %s
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define i32 @test_leaf(i32 %arg0, i32 %arg1, i32 %arg2, i32 %arg3, i32 %x) "sign-return-address"="all" {
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; CHECK-LABEL: test_leaf:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: pac r12, lr, sp
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; CHECK-NEXT: .save {ra_auth_code}
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; CHECK-NEXT: str r12, [sp, #-4]!
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; CHECK-NEXT: ldr r0, [sp, #4]
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; CHECK-NEXT: ldr r12, [sp], #4
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; CHECK-NEXT: aut r12, lr, sp
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; CHECK-NEXT: bx lr
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entry:
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ret i32 %x
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}
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define i32 @test_non_leaf(i32 %arg0, i32 %arg1, i32 %arg2, i32 %arg3, i32 %x) "sign-return-address"="all" {
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; CHECK-LABEL: test_non_leaf:
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; CHECK: @ %bb.0: @ %entry
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; CHECK-NEXT: pac r12, lr, sp
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; CHECK-NEXT: .save {r7, ra_auth_code, lr}
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; CHECK-NEXT: push.w {r7, r12, lr}
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; CHECK-NEXT: .pad #4
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; CHECK-NEXT: sub sp, #4
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; CHECK-NEXT: bl otherfn
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; CHECK-NEXT: ldr r0, [sp, #16]
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; CHECK-NEXT: add sp, #4
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; CHECK-NEXT: pop.w {r7, r12, lr}
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; CHECK-NEXT: aut r12, lr, sp
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; CHECK-NEXT: bx lr
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entry:
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call void @otherfn()
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ret i32 %x
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}
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declare void @otherfn(...)
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!llvm.module.flags = !{!0, !1, !2}
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!0 = !{i32 8, !"branch-target-enforcement", i32 0}
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!1 = !{i32 8, !"sign-return-address", i32 1}
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!2 = !{i32 8, !"sign-return-address-all", i32 1}
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