derek.holloway
7502bf64a4
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213 lines
12 KiB
LLVM
213 lines
12 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llubi_test_checks.py UTC_ARGS: --version 6
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; RUN: llubi --verbose < %s 2>&1 | FileCheck %s
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64"
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%struct = type { [2 x i16], i64 }
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%struct.packed = type <{ [2 x i16], i64 }>
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%struct.vscale = type { <vscale x 1 x i32>, <vscale x 1 x i32> }
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define void @main() {
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%alloc = alloca i32
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store i32 u0x00010203, ptr %alloc
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%val1 = load i32, ptr %alloc
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%val2 = load i32, ptr %alloc, align 2
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%gep = getelementptr i8, ptr %alloc, i64 1
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%val3 = load i8, ptr %gep
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%val4 = load <4 x i8>, ptr %alloc
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store i16 u0x0405, ptr %gep, align 1
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%val5 = load <4 x i8>, ptr %alloc
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store <2 x i16> <i16 u0x0607, i16 u0x0809>, ptr %alloc
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%val6 = load <4 x i8>, ptr %alloc
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%val7 = load <8 x i4>, ptr %alloc
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store <3 x i3> <i3 1, i3 2, i3 3>, ptr %alloc
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; padding bits are undefined.
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%val8 = load <16 x i1>, ptr %alloc
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%val9 = load <16 x i1>, ptr %alloc
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store <8 x i3> <i3 0, i3 1, i3 2, i3 3, i3 4, i3 5, i3 6, i3 7>, ptr %alloc
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%val_bitcast = load <3 x i8>, ptr %alloc
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; For non-byte-sized types, the padding bits must be zero.
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store i25 -1, ptr %alloc
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%val10 = load <4 x i8>, ptr %alloc
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store i8 -1, ptr %alloc
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; If the padding bits were not zero, load yields poison value.
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%val11 = load i25, ptr %alloc
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call void @llvm.lifetime.start.p0(ptr poison)
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call void @llvm.lifetime.end.p0(ptr poison)
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%alloc_lifetime = alloca i32
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; Load of an dead object yields poison value.
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%val12 = load i32, ptr %alloc_lifetime
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call void @llvm.lifetime.start.p0(ptr %alloc_lifetime)
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; After lifetime.start, the object is alive but uninitialized.
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%val13 = load i32, ptr %alloc_lifetime
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%val14 = load i32, ptr %alloc_lifetime
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store i32 77, ptr %alloc_lifetime
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%val15 = load i32, ptr %alloc_lifetime
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; Calling lifetime.start on an alive object makes the contents uninitialized again.
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call void @llvm.lifetime.start.p0(ptr %alloc_lifetime)
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%val_undef1 = load i32, ptr %alloc_lifetime
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%val_undef2 = load i32, ptr %alloc_lifetime
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call void @llvm.lifetime.end.p0(ptr %alloc_lifetime)
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; Calling lifetime.end on an already dead object is a no-op.
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call void @llvm.lifetime.end.p0(ptr %alloc_lifetime)
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; Load of an dead object yields poison value.
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%val16 = load i32, ptr %alloc_lifetime
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store i32 u0xFFF80000, ptr %alloc
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%val17 = load float, ptr %alloc
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%alloc_vscale = alloca <vscale x 2 x i32>
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%insert = insertelement <vscale x 1 x i32> poison, i32 1, i32 0
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%ones = shufflevector <vscale x 1 x i32> %insert, <vscale x 1 x i32> poison, <vscale x 1 x i32> zeroinitializer
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%twos = add <vscale x 1 x i32> %ones, %ones
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store <vscale x 1 x i32> %ones, ptr %alloc_vscale
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%gep3 = getelementptr <vscale x 1 x i32>, ptr %alloc_vscale, i64 1
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store <vscale x 1 x i32> %twos, ptr %gep3
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%val18 = load <vscale x 2 x i32>, ptr %alloc_vscale
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%alloc_struct = alloca %struct
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store %struct { [2 x i16] [i16 1, i16 2], i64 3 }, ptr %alloc_struct
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%val19 = load %struct, ptr %alloc_struct
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; Padding bytes of struct are undefined.
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%val20 = load i64, ptr %alloc_struct
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%val21 = load i64, ptr %alloc_struct
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%alloc_struct_packed = alloca %struct.packed
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store %struct.packed <{ [2 x i16] [i16 1, i16 2], i64 3 }>, ptr %alloc_struct_packed
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%val22 = load %struct.packed, ptr %alloc_struct_packed
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; No padding bytes.
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%val23 = load i64, ptr %alloc_struct_packed
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%val24 = load i64, ptr %alloc_struct_packed
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%alloc_struct_vscale = alloca %struct.vscale
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store %struct.vscale zeroinitializer, ptr %alloc_struct_vscale
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%gep4 = getelementptr <vscale x 1 x i32>, ptr %alloc_struct_vscale, i32 1
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store <vscale x 1 x i32> %ones, ptr %gep4
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%val25 = load %struct.vscale, ptr %alloc_struct_vscale
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%alloc_array = alloca [2 x i32]
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store [2 x i32] [i32 1, i32 2], ptr %alloc_array
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%val26 = load [2 x i32], ptr %alloc_array
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%alloc_i1_vec = alloca <4 x i1>
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store <4 x i1> <i1 1, i1 0, i1 poison, i1 0>, ptr %alloc_i1_vec
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%val27 = load <4 x i1>, ptr %alloc_i1_vec
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%val28 = load i8, ptr %alloc_i1_vec
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%alloc_padding = alloca i31
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store i32 0, ptr %alloc_padding
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%alloc_padding_vec = alloca i64
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store { <6 x i5>, i32 } { <6 x i5> zeroinitializer, i32 -1}, ptr %alloc_padding_vec
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%load_agg = load { <6 x i5>, i32 }, ptr %alloc_padding_vec
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%load_vec = load <6 x i5>, ptr %alloc_padding_vec
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%load_int_non_zero_padding = load i33, ptr %alloc_padding_vec
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%load_vec_non_zero_padding = load <3 x i11>, ptr %alloc_padding_vec
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%alloc_struct_padding = alloca {i8, i32}
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store {i8, i32} zeroinitializer, ptr %alloc_struct_padding
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%load_struct_noundef = load {i8, i32}, ptr %alloc_struct_padding, !noundef !{}
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%alloc_ptr = alloca ptr
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store ptr %alloc_ptr, ptr %alloc_ptr
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; It should recover the provenance.
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%ptr_with_provenance = load ptr, ptr %alloc_ptr
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%addr_bits = load i8, ptr %alloc_ptr
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store i8 %addr_bits, ptr %alloc_ptr
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; The first byte is tainted. We cannot recover the provenance.
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%ptr_without_provenance = load ptr, ptr %alloc_ptr
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ret void
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}
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; CHECK: Entering function: main
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; CHECK-NEXT: %alloc = alloca i32, align 4 => ptr 0x8 [alloc]
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; CHECK-NEXT: store i32 66051, ptr %alloc, align 4
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; CHECK-NEXT: %val1 = load i32, ptr %alloc, align 4 => i32 66051
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; CHECK-NEXT: %val2 = load i32, ptr %alloc, align 2 => i32 66051
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; CHECK-NEXT: %gep = getelementptr i8, ptr %alloc, i64 1 => ptr 0x9 [alloc + 1]
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; CHECK-NEXT: %val3 = load i8, ptr %gep, align 1 => i8 1
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; CHECK-NEXT: %val4 = load <4 x i8>, ptr %alloc, align 4 => { i8 0, i8 1, i8 2, i8 3 }
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; CHECK-NEXT: store i16 1029, ptr %gep, align 1
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; CHECK-NEXT: %val5 = load <4 x i8>, ptr %alloc, align 4 => { i8 0, i8 4, i8 5, i8 3 }
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; CHECK-NEXT: store <2 x i16> <i16 1543, i16 2057>, ptr %alloc, align 4
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; CHECK-NEXT: %val6 = load <4 x i8>, ptr %alloc, align 4 => { i8 6, i8 7, i8 8, i8 9 }
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; CHECK-NEXT: %val7 = load <8 x i4>, ptr %alloc, align 4 => { i4 0, i4 6, i4 0, i4 7, i4 0, i4 -8, i4 0, i4 -7 }
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; CHECK-NEXT: store <3 x i3> <i3 1, i3 2, i3 3>, ptr %alloc, align 2
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; CHECK-NEXT: %val8 = load <16 x i1>, ptr %alloc, align 2 => { F, F, F, F, F, F, F, F, F, T, F, T, F, F, T, T }
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; CHECK-NEXT: %val9 = load <16 x i1>, ptr %alloc, align 2 => { F, F, F, F, F, F, F, F, F, T, F, T, F, F, T, T }
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; CHECK-NEXT: store <8 x i3> <i3 0, i3 1, i3 2, i3 3, i3 -4, i3 -3, i3 -2, i3 -1>, ptr %alloc, align 4
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; CHECK-NEXT: %val_bitcast = load <3 x i8>, ptr %alloc, align 4 => { i8 5, i8 57, i8 119 }
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; CHECK-NEXT: store i25 -1, ptr %alloc, align 4
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; CHECK-NEXT: %val10 = load <4 x i8>, ptr %alloc, align 4 => { i8 1, i8 -1, i8 -1, i8 -1 }
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; CHECK-NEXT: store i8 -1, ptr %alloc, align 1
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; CHECK-NEXT: %val11 = load i25, ptr %alloc, align 4 => poison
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr poison)
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr poison)
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; CHECK-NEXT: %alloc_lifetime = alloca i32, align 4 => ptr 0xC [alloc_lifetime (dead)]
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; CHECK-NEXT: %val12 = load i32, ptr %alloc_lifetime, align 4 => poison
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr %alloc_lifetime)
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; CHECK-NEXT: %val13 = load i32, ptr %alloc_lifetime, align 4 => i32 -289830082
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; CHECK-NEXT: %val14 = load i32, ptr %alloc_lifetime, align 4 => i32 -399511892
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; CHECK-NEXT: store i32 77, ptr %alloc_lifetime, align 4
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; CHECK-NEXT: %val15 = load i32, ptr %alloc_lifetime, align 4 => i32 77
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr %alloc_lifetime)
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; CHECK-NEXT: %val_undef1 = load i32, ptr %alloc_lifetime, align 4 => i32 -132966042
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; CHECK-NEXT: %val_undef2 = load i32, ptr %alloc_lifetime, align 4 => i32 1094190734
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr %alloc_lifetime)
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr %alloc_lifetime)
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; CHECK-NEXT: %val16 = load i32, ptr %alloc_lifetime, align 4 => poison
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; CHECK-NEXT: store i32 -524288, ptr %alloc, align 4
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; CHECK-NEXT: %val17 = load float, ptr %alloc, align 4 => float 0xFFF80000
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; CHECK-NEXT: %alloc_vscale = alloca <vscale x 2 x i32>, align 8 => ptr 0x10 [alloc_vscale]
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; CHECK-NEXT: %insert = insertelement <vscale x 1 x i32> poison, i32 1, i32 0 => { i32 1, poison, poison, poison }
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; CHECK-NEXT: %ones = shufflevector <vscale x 1 x i32> %insert, <vscale x 1 x i32> poison, <vscale x 1 x i32> zeroinitializer => { i32 1, i32 1, i32 1, i32 1 }
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; CHECK-NEXT: %twos = add <vscale x 1 x i32> %ones, %ones => { i32 2, i32 2, i32 2, i32 2 }
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; CHECK-NEXT: store <vscale x 1 x i32> %ones, ptr %alloc_vscale, align 4
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; CHECK-NEXT: %gep3 = getelementptr <vscale x 1 x i32>, ptr %alloc_vscale, i64 1 => ptr 0x20 [alloc_vscale + 16]
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; CHECK-NEXT: store <vscale x 1 x i32> %twos, ptr %gep3, align 4
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; CHECK-NEXT: %val18 = load <vscale x 2 x i32>, ptr %alloc_vscale, align 8 => { i32 1, i32 1, i32 1, i32 1, i32 2, i32 2, i32 2, i32 2 }
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; CHECK-NEXT: %alloc_struct = alloca %struct, align 8 => ptr 0x30 [alloc_struct]
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; CHECK-NEXT: store %struct { [2 x i16] [i16 1, i16 2], i64 3 }, ptr %alloc_struct, align 8
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; CHECK-NEXT: %val19 = load %struct, ptr %alloc_struct, align 8 => { { i16 1, i16 2 }, i64 3 }
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; CHECK-NEXT: %val20 = load i64, ptr %alloc_struct, align 8 => i64 281486191577587
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; CHECK-NEXT: %val21 = load i64, ptr %alloc_struct, align 8 => i64 281486962127119
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; CHECK-NEXT: %alloc_struct_packed = alloca %struct.packed, align 8 => ptr 0x40 [alloc_struct_packed]
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; CHECK-NEXT: store %struct.packed <{ [2 x i16] [i16 1, i16 2], i64 3 }>, ptr %alloc_struct_packed, align 1
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; CHECK-NEXT: %val22 = load %struct.packed, ptr %alloc_struct_packed, align 1 => { { i16 1, i16 2 }, i64 3 }
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; CHECK-NEXT: %val23 = load i64, ptr %alloc_struct_packed, align 8 => i64 281483566645248
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; CHECK-NEXT: %val24 = load i64, ptr %alloc_struct_packed, align 8 => i64 281483566645248
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; CHECK-NEXT: %alloc_struct_vscale = alloca %struct.vscale, align 8 => ptr 0x50 [alloc_struct_vscale]
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; CHECK-NEXT: store %struct.vscale zeroinitializer, ptr %alloc_struct_vscale, align 4
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; CHECK-NEXT: %gep4 = getelementptr <vscale x 1 x i32>, ptr %alloc_struct_vscale, i32 1 => ptr 0x60 [alloc_struct_vscale + 16]
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; CHECK-NEXT: store <vscale x 1 x i32> %ones, ptr %gep4, align 4
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; CHECK-NEXT: %val25 = load %struct.vscale, ptr %alloc_struct_vscale, align 4 => { { i32 0, i32 0, i32 0, i32 0 }, { i32 1, i32 1, i32 1, i32 1 } }
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; CHECK-NEXT: %alloc_array = alloca [2 x i32], align 4 => ptr 0x70 [alloc_array]
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; CHECK-NEXT: store [2 x i32] [i32 1, i32 2], ptr %alloc_array, align 4
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; CHECK-NEXT: %val26 = load [2 x i32], ptr %alloc_array, align 4 => { i32 1, i32 2 }
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; CHECK-NEXT: %alloc_i1_vec = alloca <4 x i1>, align 1 => ptr 0x78 [alloc_i1_vec]
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; CHECK-NEXT: store <4 x i1> <i1 true, i1 false, i1 poison, i1 false>, ptr %alloc_i1_vec, align 1
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; CHECK-NEXT: %val27 = load <4 x i1>, ptr %alloc_i1_vec, align 1 => { T, F, poison, F }
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; CHECK-NEXT: %val28 = load i8, ptr %alloc_i1_vec, align 1 => poison
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; CHECK-NEXT: %alloc_padding = alloca i31, align 4 => ptr 0x7C [alloc_padding]
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; CHECK-NEXT: store i32 0, ptr %alloc_padding, align 4
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; CHECK-NEXT: %alloc_padding_vec = alloca i64, align 8 => ptr 0x80 [alloc_padding_vec]
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; CHECK-NEXT: store { <6 x i5>, i32 } { <6 x i5> zeroinitializer, i32 -1 }, ptr %alloc_padding_vec, align 4
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; CHECK-NEXT: %load_agg = load { <6 x i5>, i32 }, ptr %alloc_padding_vec, align 4 => { { i5 0, i5 0, i5 0, i5 0, i5 0, i5 0 }, i32 -1 }
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; CHECK-NEXT: %load_vec = load <6 x i5>, ptr %alloc_padding_vec, align 4 => { i5 0, i5 0, i5 0, i5 0, i5 0, i5 0 }
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; CHECK-NEXT: %load_int_non_zero_padding = load i33, ptr %alloc_padding_vec, align 8 => i33 255
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; CHECK-NEXT: %load_vec_non_zero_padding = load <3 x i11>, ptr %alloc_padding_vec, align 8 => { i11 0, i11 0, i11 255 }
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; CHECK-NEXT: %alloc_struct_padding = alloca { i8, i32 }, align 8 => ptr 0x88 [alloc_struct_padding]
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; CHECK-NEXT: store { i8, i32 } zeroinitializer, ptr %alloc_struct_padding, align 4
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; CHECK-NEXT: %load_struct_noundef = load { i8, i32 }, ptr %alloc_struct_padding, align 4, !noundef !0 => { i8 0, i32 0 }
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; CHECK-NEXT: %alloc_ptr = alloca ptr, align 8 => ptr 0x90 [alloc_ptr]
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; CHECK-NEXT: store ptr %alloc_ptr, ptr %alloc_ptr, align 8
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; CHECK-NEXT: %ptr_with_provenance = load ptr, ptr %alloc_ptr, align 8 => ptr 0x90 [alloc_ptr]
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; CHECK-NEXT: %addr_bits = load i8, ptr %alloc_ptr, align 1 => i8 0
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; CHECK-NEXT: store i8 %addr_bits, ptr %alloc_ptr, align 1
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; CHECK-NEXT: %ptr_without_provenance = load ptr, ptr %alloc_ptr, align 8 => ptr 0x90 [nullary]
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; CHECK-NEXT: ret void
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; CHECK-NEXT: Exiting function: main
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