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https://github.com/c64scene-ar/llvm-6502.git
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6af0f89f37
If the first character in a metadata attachment's name is a digit, it has to be output using an escape sequence, otherwise it's not valid text IR. Removed an over-zealous assert from LLVMContext which didn't allow this. The rule should only apply to text IR. Actual names can have any sequence of non-NUL bytes. Also added some documentation on accepted names. Bug found with AFL fuzz. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238867 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.0 KiB
LLVM
42 lines
1.0 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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; CHECK-LABEL: @test
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; CHECK: ret void, !bar !1, !foo !0
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define void @test() {
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add i32 2, 1, !bar !0
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add i32 1, 2, !foo !1
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call void @llvm.dbg.func.start(metadata !"foo")
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extractvalue {{i32, i32}, i32} undef, 0, 1, !foo !0
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ret void, !foo !0, !bar !1
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}
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; CHECK-LABEL: define void @test2() !foo !2 !baz !3
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define void @test2() !foo !2 !baz !3 {
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unreachable
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}
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; CHECK-LABEL: define void @test3() !bar !3
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; CHECK: unreachable, !bar !4
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define void @test3() !bar !3 {
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unreachable, !bar !4
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}
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; CHECK-LABEL: define void @test_attachment_name() {
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; CHECK: unreachable, !\342abc !4
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define void @test_attachment_name() {
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;; Escape the first character when printing text IR, since it's a digit
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unreachable, !\34\32abc !4
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}
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!0 = !DILocation(line: 662302, column: 26, scope: !1)
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!1 = !DISubprogram(name: "foo")
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!2 = distinct !{}
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!3 = distinct !{}
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!4 = distinct !{}
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declare void @llvm.dbg.func.start(metadata) nounwind readnone
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!foo = !{ !0 }
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!bar = !{ !1 }
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