derek.holloway
7502bf64a4
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180 lines
10 KiB
LLVM
180 lines
10 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
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; RUN: opt -passes=globalopt -S %s | FileCheck %s
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%struct.widget = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
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@global = internal global %struct.widget zeroinitializer
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;.
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; CHECK: @[[A:[a-zA-Z0-9_$"\\.-]+]] = global i8 0, align 4
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;.
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define internal void @read_struct() {
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; CHECK-LABEL: @read_struct(
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; CHECK-NEXT: ret void
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;
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%tmp = load ptr, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 16), align 8
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ret void
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}
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define void @write_struct() {
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; CHECK-LABEL: @write_struct(
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; CHECK-NEXT: tail call fastcc void @read_struct()
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; CHECK-NEXT: ret void
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;
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store ptr null, ptr @global, align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 1), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 2), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 3), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 4), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 5), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 6), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 7), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 8), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 9), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 10), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 11), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 12), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 13), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 14), align 8
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store ptr null, ptr getelementptr inbounds (%struct.widget, ptr @global, i64 0, i32 15), align 8
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tail call void @read_struct()
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ret void
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}
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%struct.with.array = type { [100 x i64], i64 }
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@global.array_in_struct = internal global %struct.with.array zeroinitializer
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define internal void @read_non_array_field() {
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; CHECK-LABEL: @read_non_array_field(
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; CHECK-NEXT: ret void
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;
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%tmp = load i64, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 1), align 8
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ret void
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}
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define void @store_to_struct_array() {
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; CHECK-LABEL: @store_to_struct_array(
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; CHECK-NEXT: tail call fastcc void @read_non_array_field()
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; CHECK-NEXT: ret void
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;
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store i64 0, ptr @global.array_in_struct, align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 1), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 2), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 3), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 4), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 5), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 6), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 7), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 8), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 9), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 10), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 11), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 12), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 13), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 14), align 8
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store i64 0, ptr getelementptr inbounds (%struct.with.array, ptr @global.array_in_struct, i64 0, i32 0, i32 15), align 8
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tail call void @read_non_array_field()
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ret void
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}
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@global.array = internal global [100 x i64] zeroinitializer
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define internal void @read_array() {
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; CHECK-LABEL: @read_array(
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; CHECK-NEXT: ret void
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;
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%tmp = load i64, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 99), align 8
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ret void
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}
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define void @store_to_array() {
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; CHECK-LABEL: @store_to_array(
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; CHECK-NEXT: tail call fastcc void @read_array()
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; CHECK-NEXT: ret void
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;
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store i64 0, ptr @global.array, align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 1), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 2), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 3), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 4), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 5), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 6), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 7), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 8), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 9), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 10), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 11), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 12), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 13), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 14), align 8
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store i64 0, ptr getelementptr inbounds ([100 x i64], ptr @global.array, i64 0, i32 15), align 8
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tail call void @read_array()
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ret void
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}
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%struct.20i8 = type { i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8, i8 }
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@a = global i8 0, align 4
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@b = internal global %struct.20i8 { i8 4, i8 4, i8 4, i8 5, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 5, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4, i8 4 }
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define void @test_single_write_to_global_b() {
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; CHECK-LABEL: @test_single_write_to_global_b(
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 5, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 5, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: store volatile i8 4, ptr @a, align 4
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; CHECK-NEXT: ret void
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;
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store i8 0, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 1), align 1
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%i3 = load i8, ptr @b, align 16
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store volatile i8 %i3, ptr @a, align 4
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%i4 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 2), align 2
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store volatile i8 %i4, ptr @a, align 4
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%i5 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 3), align 1
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store volatile i8 %i5, ptr @a, align 4
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%i6 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 4), align 4
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store volatile i8 %i6, ptr @a, align 4
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%i7 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 5), align 1
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store volatile i8 %i7, ptr @a, align 4
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%i8 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 7), align 1
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store volatile i8 %i8, ptr @a, align 4
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%i9 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 8), align 8
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store volatile i8 %i9, ptr @a, align 4
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%i10 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 9), align 1
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store volatile i8 %i10, ptr @a, align 4
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%i11 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 10), align 2
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store volatile i8 %i11, ptr @a, align 4
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%i12 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 11), align 1
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store volatile i8 %i12, ptr @a, align 4
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%i13 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 12), align 4
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store volatile i8 %i13, ptr @a, align 4
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%i14 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 13), align 1
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store volatile i8 %i14, ptr @a, align 4
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%i15 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 14), align 2
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store volatile i8 %i15, ptr @a, align 4
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%i16 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 15), align 1
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store volatile i8 %i16, ptr @a, align 4
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%i17 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 16), align 16
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store volatile i8 %i17, ptr @a, align 4
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%i18 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 17), align 1
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store volatile i8 %i18, ptr @a, align 4
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%i19 = load i8, ptr getelementptr inbounds (%struct.20i8, ptr @b, i64 0, i32 18), align 2
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store volatile i8 %i19, ptr @a, align 4
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ret void
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}
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