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570b485d61
Once the default for SimplifyCFG flips, we can no longer pass nullptr instead of DomTree to SimplifyCFG, so we need to propagate it here. We don't strictly need to actually preserve DomTree in DwarfEHPrepare, but we might as well do it, since it's trivial.
90 lines
2.1 KiB
LLVM
90 lines
2.1 KiB
LLVM
; RUN: llc -simplifycfg-require-and-preserve-domtree=1 < %s -verify-machineinstrs
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; <rdar://problem/9187612>
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target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32"
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target triple = "thumbv7-apple-darwin"
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define void @func() unnamed_addr align 2 personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*) {
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entry:
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br label %for.cond
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for.cond:
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%tmp2 = phi i32 [ 0, %entry ], [ %add, %for.cond.backedge ]
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%cmp = icmp ult i32 %tmp2, 14
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br i1 %cmp, label %for.body, label %for.end
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for.body:
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%add = add i32 %tmp2, 1
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switch i32 %tmp2, label %sw.default [
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i32 0, label %sw.bb
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i32 1, label %sw.bb
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i32 2, label %sw.bb
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i32 4, label %sw.bb
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i32 5, label %sw.bb
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i32 10, label %sw.bb
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]
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sw.bb:
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invoke void @foo()
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to label %invoke.cont17 unwind label %lpad
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invoke.cont17:
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invoke void @foo()
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to label %for.cond.backedge unwind label %lpad26
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for.cond.backedge:
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br label %for.cond
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lpad:
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%exn = landingpad { i8*, i32 }
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catch i8* null
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invoke void @foo()
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to label %eh.resume unwind label %terminate.lpad
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lpad26:
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%exn27 = landingpad { i8*, i32 }
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catch i8* null
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invoke void @foo()
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to label %eh.resume unwind label %terminate.lpad
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sw.default:
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br label %for.cond.backedge
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for.end:
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invoke void @foo()
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to label %call8.i.i.i.noexc unwind label %lpad44
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call8.i.i.i.noexc:
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ret void
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lpad44:
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%exn45 = landingpad { i8*, i32 }
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catch i8* null
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invoke void @foo()
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to label %eh.resume unwind label %terminate.lpad
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eh.resume:
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%exn.slot.0 = phi { i8*, i32 } [ %exn27, %lpad26 ], [ %exn, %lpad ], [ %exn45, %lpad44 ]
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resume { i8*, i32 } %exn.slot.0
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terminate.lpad:
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%exn51 = landingpad { i8*, i32 }
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catch i8* null
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tail call void @_ZSt9terminatev() noreturn nounwind
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unreachable
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}
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declare void @foo()
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declare i32 @__gxx_personality_sj0(...)
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declare void @_Unwind_SjLj_Resume_or_Rethrow(i8*)
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declare void @_ZSt9terminatev()
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!0 = !{!"any pointer", !1}
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!1 = !{!"omnipotent char", !2}
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!2 = !{!"Simple C/C++ TBAA"}
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!3 = !{!"bool", !1}
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!4 = !{!"int", !1}
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