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https://github.com/c64scene-ar/llvm-6502.git
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9c28314a68
Ultimately, __CxxFrameHandler3 needs us to put a stack offset in a table, and it will take responsibility for copying the exception object into that slot. Modelling the exception object as an SSA value returned by begincatch isn't going to work in general, so make it use an output parameter. Reviewers: andrew.w.kaylor Differential Revision: http://reviews.llvm.org/D7920 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231086 91177308-0d34-0410-b5e6-96231b3b80d8
110 lines
3.6 KiB
LLVM
110 lines
3.6 KiB
LLVM
; RUN: opt -lint -disable-output < %s
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; This test is meant to prove that the verifier does not report errors for correct
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; use of the llvm.eh.begincatch and llvm.eh.endcatch intrinsics.
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target triple = "x86_64-pc-windows-msvc"
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declare void @llvm.eh.begincatch(i8*, i8*)
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declare void @llvm.eh.endcatch()
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@_ZTIi = external constant i8*
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; Function Attrs: uwtable
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define void @test_ref_clean() {
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entry:
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invoke void @_Z9may_throwv()
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to label %try.cont unwind label %lpad
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn = extractvalue { i8*, i32 } %0, 0
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%sel = extractvalue { i8*, i32 } %0, 1
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%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %sel, %1
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br i1 %matches, label %catch, label %eh.resume
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catch: ; preds = %lpad
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call void @llvm.eh.begincatch(i8* %exn, i8* null)
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call void @_Z10handle_intv()
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br label %invoke.cont2
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invoke.cont2: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %try.cont
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try.cont: ; preds = %invoke.cont2, %entry
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ret void
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eh.resume: ; preds = %catch.dispatch
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resume { i8*, i32 } %0
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}
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; Function Attrs: uwtable
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define void @test_ref_clean_multibranch() {
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entry:
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invoke void @_Z9may_throwv()
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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invoke void @_Z9may_throwv()
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to label %invoke.cont unwind label %lpad1
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn = extractvalue { i8*, i32 } %0, 0
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%sel = extractvalue { i8*, i32 } %0, 1
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%1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %sel, %1
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br i1 %matches, label %catch, label %eh.resume
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invoke void @_Z9may_throwv()
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to label %try.cont unwind label %lpad
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lpad1: ; preds = %entry
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%l1.0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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cleanup
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%exn1 = extractvalue { i8*, i32 } %l1.0, 0
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%sel1 = extractvalue { i8*, i32 } %l1.0, 1
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%l1.1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matchesl1 = icmp eq i32 %sel1, %l1.1
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br i1 %matchesl1, label %catch, label %eh.resume
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catch: ; preds = %lpad, %lpad1
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%exn2 = phi i8* [%exn, %lpad], [%exn1, %lpad1]
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%sel2 = phi i32 [%sel, %lpad], [%sel1, %lpad1]
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call void @llvm.eh.begincatch(i8* %exn2, i8* null)
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call void @_Z10handle_intv()
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%matches1 = icmp eq i32 %sel2, 0
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br i1 %matches1, label %invoke.cont2, label %invoke.cont3
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invoke.cont2: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %try.cont
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invoke.cont3: ; preds = %catch
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call void @llvm.eh.endcatch()
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br label %eh.resume
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try.cont: ; preds = %invoke.cont2, %entry
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ret void
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eh.resume: ; preds = %catch.dispatch
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%lpad.val = insertvalue { i8*, i32 } undef, i32 0, 1
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resume { i8*, i32 } %lpad.val
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}
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declare void @_Z9may_throwv()
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declare i32 @__CxxFrameHandler3(...)
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; Function Attrs: nounwind readnone
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declare i32 @llvm.eh.typeid.for(i8*)
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declare void @_Z10handle_intv()
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