1e96ee67a1
This precommits a test that should demonstrate that Delinearization can succeed when we analyse the size of the global variable definition.
49 lines
1.5 KiB
LLVM
49 lines
1.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -passes='print<delinearization>' -disable-output -delinearize-use-fixed-size-array-heuristic 2>&1 | FileCheck %s
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; Pseudo-code:
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;
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; arr[10][20];
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;
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; for i=0 to N
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; for j=0 to M
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; a[i][j];
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;
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@test_array_10x20 = global [10 x [20 x i32]] zeroinitializer
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; Function that accesses a 2D array with dimensions [10][20].
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define void @test_2d_array(i64 %i, i64 %j, i64 %N, i64 %M) {
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; CHECK-LABEL: 'test_2d_array'
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; CHECK-NEXT: Inst: %val = load i32, ptr %gepij, align 4
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; CHECK-NEXT: AccessFunction: {{\{\{}}0,+,80}<%for.i>,+,4}<%for.j>
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; CHECK-NEXT: Base offset: @test_array_10x20
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; CHECK-NEXT: ArrayDecl[UnknownSize][20] with elements of 4 bytes.
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; CHECK-NEXT: ArrayRef[{0,+,1}<nuw><%for.i>][{0,+,1}<nuw><nsw><%for.j>]
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; CHECK-NEXT: Delinearization validation: Failed
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;
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entry:
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br label %for.i
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for.i:
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%i.cur = phi i64 [ 0, %entry ], [ %i.next, %for.j.end ]
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%gepi = getelementptr inbounds nuw [20 x i32], ptr @test_array_10x20, i64 %i.cur
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%i.cmp = icmp slt i64 %i.cur, %N
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br i1 %i.cmp, label %for.j, label %exit
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for.j:
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%j.cur = phi i64 [ 0, %for.i ], [ %j.next, %for.j ]
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%gepij = getelementptr inbounds nuw i32, ptr %gepi, i64 %j.cur
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%val = load i32, ptr %gepij, align 4
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%j.next = add i64 %j.cur, 1
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%j.cmp = icmp slt i64 %j.next, %M
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br i1 %j.cmp, label %for.j, label %for.j.end
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for.j.end:
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%i.next = add i64 %i.cur, 1
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br label %for.i
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exit:
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ret void
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}
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