derek.holloway
7502bf64a4
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73 lines
3.8 KiB
LLVM
73 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt -passes=infer-alignment -S < %s | FileCheck %s
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; ------------------------------------------------------------------------------
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; Array of pair
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; ------------------------------------------------------------------------------
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; Check that we improve the alignment information.
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; The base pointer is 16-byte aligned and we access the field at offsets of 8
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; bytes.
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; Every element in the @array.simple array is 16-byte aligned so any access from
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; the following gep is 8-byte aligned.
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%pair.simple = type { ptr, i32 }
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@array.simple = global [4 x %pair.simple] zeroinitializer, align 16
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define void @simple_pair(i64 %idx) {
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; CHECK-LABEL: define void @simple_pair
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; CHECK-SAME: (i64 [[IDX:%.*]]) {
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; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [4 x %pair.simple], ptr @array.simple, i64 0, i64 [[IDX]], i32 1
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; CHECK-NEXT: [[RES:%.*]] = load i32, ptr [[GEP]], align 8
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; CHECK-NEXT: store i32 0, ptr [[GEP]], align 8
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; CHECK-NEXT: ret void
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;
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%gep = getelementptr inbounds [4 x %pair.simple], ptr @array.simple, i64 0, i64 %idx, i32 1
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%res = load i32, ptr %gep, align 1
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store i32 0, ptr %gep, align 1
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ret void
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}
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; ------------------------------------------------------------------------------
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; Array of pair of arrays
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; ------------------------------------------------------------------------------
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%pair.array = type { [3 x i32], [3 x i32] }
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@array.array = internal global [3 x %pair.array] zeroinitializer
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define void @load_nested() {
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; CHECK-LABEL: define void @load_nested() {
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; CHECK-NEXT: [[X_0:%.*]] = load i32, ptr @array.array, align 16
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; CHECK-NEXT: [[X_1:%.*]] = load i32, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 1), align 4
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; CHECK-NEXT: [[X_2:%.*]] = load i32, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 2), align 8
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; CHECK-NEXT: [[X_3:%.*]] = load i32, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 3), align 4
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; CHECK-NEXT: [[X_4:%.*]] = load i32, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 4), align 16
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; CHECK-NEXT: ret void
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;
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%x.0 = load i32, ptr @array.array, align 4
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%x.1 = load i32, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 1), align 4
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%x.2 = load i32, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 2), align 4
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%x.3 = load i32, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 3), align 4
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%x.4 = load i32, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 4), align 4
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ret void
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}
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define void @store_nested() {
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; CHECK-LABEL: define void @store_nested() {
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; CHECK-NEXT: store i32 1, ptr @array.array, align 16
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; CHECK-NEXT: store i32 1, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 1), align 4
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; CHECK-NEXT: store i32 1, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 2), align 8
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; CHECK-NEXT: store i32 1, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 3), align 4
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; CHECK-NEXT: store i32 1, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 4), align 16
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; CHECK-NEXT: ret void
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;
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store i32 1, ptr @array.array, align 4
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store i32 1, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 1), align 4
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store i32 1, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 2), align 4
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store i32 1, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 3), align 4
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store i32 1, ptr getelementptr ([3 x %pair.array], ptr @array.array, i64 0, i64 0, i32 0, i64 4), align 4
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ret void
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}
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