derek.holloway
7502bf64a4
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45 lines
1.5 KiB
LLVM
45 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=aarch64-unknown-linux-gnu %s -o - | FileCheck %s
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; Purpose: With BTI enabled, the landing pad (%lpad) begins with an EH_LABEL and the
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; first *executed* instruction is `bti j`. (BTI is inserted *after* the EH label and meta.)
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declare i32 @__gxx_personality_v0(...)
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declare void @may_throw()
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define void @test() #0 personality ptr @__gxx_personality_v0 {
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; CHECK-LABEL: test:
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; CHECK: .Lfunc_begin0:
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; CHECK-NEXT: .cfi_startproc
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; CHECK-NEXT: .cfi_personality 156, DW.ref.__gxx_personality_v0
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; CHECK-NEXT: .cfi_lsda 28, .Lexception0
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; CHECK-NEXT: // %bb.0: // %entry
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; CHECK-NEXT: bti c
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; CHECK-NEXT: str x30, [sp, #-16]! // 8-byte Folded Spill
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: .cfi_offset w30, -16
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; CHECK-NEXT: .Ltmp0: // EH_LABEL
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; CHECK-NEXT: bl may_throw
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; CHECK-NEXT: .Ltmp1: // EH_LABEL
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; CHECK-NEXT: // %bb.1: // %common.ret
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; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; CHECK-NEXT: ret
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; CHECK-NEXT: .LBB0_2: // %lpad
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; CHECK-NEXT: .Ltmp2: // EH_LABEL
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; CHECK-NEXT: bti j
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; CHECK-NEXT: ldr x30, [sp], #16 // 8-byte Folded Reload
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; CHECK-NEXT: ret
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entry:
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invoke void @may_throw()
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to label %ret unwind label %lpad
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lpad:
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landingpad { ptr, i32 } cleanup
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ret void
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ret:
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ret void
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}
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attributes #0 = { noinline "branch-target-enforcement"="true" "target-features"="+bti" }
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