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https://github.com/c64scene-ar/llvm-6502.git
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d29052bf26
landing pad as its successor. SjLj exception handling jumps to the correct landing pad via a switch statement that's generated right before code-gen. Loosen the constraint in the machine instruction verifier to allow for this. Note, this isn't the most rigorous check since we cannot determine where that switch statement came from. But it's marginally better than turning this check off when SjLj exceptions are used. <rdar://problem/9187612> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130881 91177308-0d34-0410-b5e6-96231b3b80d8
94 lines
2.9 KiB
LLVM
94 lines
2.9 KiB
LLVM
; RUN: llc < %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 {
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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 = tail call i8* @llvm.eh.exception() nounwind
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%eh.selector = tail call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* %exn, i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*), i8* null) nounwind
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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 = tail call i8* @llvm.eh.exception() nounwind
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%eh.selector28 = tail call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* %exn27, i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*), i8* null) nounwind
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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 = tail call i8* @llvm.eh.exception() nounwind
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%eh.selector46 = tail call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* %exn45, i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*), i8* null) nounwind
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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* [ %exn27, %lpad26 ], [ %exn, %lpad ], [ %exn45, %lpad44 ]
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tail call void @_Unwind_SjLj_Resume_or_Rethrow(i8* %exn.slot.0) noreturn
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unreachable
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terminate.lpad:
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%exn51 = tail call i8* @llvm.eh.exception() nounwind
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%eh.selector52 = tail call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* %exn51, i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*), i8* null) nounwind
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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 i8* @llvm.eh.exception() nounwind readonly
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declare i32 @__gxx_personality_sj0(...)
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declare i32 @llvm.eh.selector(i8*, i8*, ...) nounwind
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declare void @_Unwind_SjLj_Resume_or_Rethrow(i8*)
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declare void @_ZSt9terminatev()
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!0 = metadata !{metadata !"any pointer", metadata !1}
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!1 = metadata !{metadata !"omnipotent char", metadata !2}
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!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
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!3 = metadata !{metadata !"bool", metadata !1}
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!4 = metadata !{metadata !"int", metadata !1}
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