73 строки
1,7 КиБ
LLVM
73 строки
1,7 КиБ
LLVM
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64--linux"
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@intToPtrResult = global i8 0
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@ptrToIntResult = global i8 0
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@icmpResult = global i8 0
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@pointerTagResult = global i64 0
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@someArray = internal global {i16, i8, i8} zeroinitializer
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@someArrayPointer = global ptr zeroinitializer
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define void @runtime.initAll() {
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call void @main.init()
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ret void
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}
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define internal void @main.init() {
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call void @testIntToPtr()
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call void @testPtrToInt()
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call void @testConstGEP()
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call void @testICmp()
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call void @testPointerTag()
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ret void
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}
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define internal void @testIntToPtr() {
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%nil = icmp eq ptr inttoptr (i64 1024 to ptr), null
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br i1 %nil, label %a, label %b
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a:
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; should not be reached
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store i8 1, ptr @intToPtrResult
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ret void
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b:
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; should be reached
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store i8 2, ptr @intToPtrResult
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ret void
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}
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define internal void @testPtrToInt() {
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%zero = icmp eq i64 ptrtoint (ptr @ptrToIntResult to i64), 0
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br i1 %zero, label %a, label %b
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a:
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; should not be reached
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store i8 1, ptr @ptrToIntResult
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ret void
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b:
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; should be reached
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store i8 2, ptr @ptrToIntResult
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ret void
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}
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define internal void @testConstGEP() {
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store ptr getelementptr inbounds (i8, ptr @someArray, i32 2), ptr @someArrayPointer
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ret void
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}
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define internal void @testICmp() {
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br i1 icmp eq (i64 ptrtoint (ptr @ptrToIntResult to i64), i64 0), label %equal, label %unequal
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equal:
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; should not be reached
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store i8 1, ptr @icmpResult
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ret void
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unequal:
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; should be reached
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store i8 2, ptr @icmpResult
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ret void
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ret void
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}
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define internal void @testPointerTag() {
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%val = and i64 ptrtoint (ptr getelementptr inbounds (i8, ptr @someArray, i32 2) to i64), 3
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store i64 %val, ptr @pointerTagResult
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ret void
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}
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