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3937810b23
removeUsers uses a work list to collect indirect users and call remove() on those functions. However it has a bug (`if (!Visited.insert(UU).second)`). Actually, we don't have to collect indirect users. After the merge of F and G, G's callers will be considered (added to Deferred). If G's callers can be merged, G's callers' callers will be considered. Update the test unnamed-addr-reprocessing.ll to make it clear we can still merge indirect callers. llvm-svn: 358741
50 lines
993 B
LLVM
50 lines
993 B
LLVM
; RUN: opt -S -mergefunc < %s | FileCheck %s
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; After the merge of test5 and test6, we can merge test3 and test4,
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; then test1 and test2.
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; CHECK: define void @test6() unnamed_addr
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; CHECK-NEXT: tail call void @test5()
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; CHECK: define void @test4() unnamed_addr
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; CHECK-NEXT: tail call void @test3()
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; CHECK: define void @test2() unnamed_addr
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; CHECK-NEXT: tail call void @test1()
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declare void @dummy()
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define void @test1() unnamed_addr {
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call void @test3()
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call void @test3()
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ret void
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}
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define void @test2() unnamed_addr {
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call void @test4()
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call void @test4()
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ret void
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}
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define void @test3() unnamed_addr {
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call void @test5()
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call void @test5()
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ret void
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}
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define void @test4() unnamed_addr {
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call void @test6()
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call void @test6()
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ret void
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}
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define void @test5() unnamed_addr {
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call void @dummy()
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call void @dummy()
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ret void
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}
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define void @test6() unnamed_addr {
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call void @dummy()
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call void @dummy()
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ret void
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}
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