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44c4846682
Summary: This changes the syntax of !foreach so that the first "parameter" is a new syntactic variable: !foreach(x, lst, expr) will define the variable x within the scope of expr, and evaluation of the !foreach will substitute elements of the given list (or dag) for x in expr. Aside from leading to a nicer syntax, this allows more complex expressions where x is deeply nested, or even constant expressions in which x does not occur at all. !foreach is currently not actually used anywhere in trunk, but I plan to use it in the AMDGPU backend. If out-of-tree targets are using it, they can adjust to the new syntax very easily. Change-Id: Ib966694d8ab6542279d6bc358b6f4d767945a805 Reviewers: arsenm, craig.topper, tra, MartinO Subscribers: wdng, llvm-commits, tpr Differential Revision: https://reviews.llvm.org/D43651 llvm-svn: 326705
54 lines
1.1 KiB
TableGen
54 lines
1.1 KiB
TableGen
// RUN: llvm-tblgen %s | FileCheck %s
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// XFAIL: vg_leak
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// CHECK: Classes
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// CHECK: Sr
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// CHECK: Jr
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// CHECK: "NAME"
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// CHECK: Defs
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// CHECK: def DX {
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// CHECK: list<string> x = ["0", "1", "2"];
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// CHECK: }
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// CHECK: def DY {
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// CHECK: list<int> y = [5, 7];
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// CHECK: }
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// CHECK: Jr
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// CHECK: Sr
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class A<list<string> names> {
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list<string> Names = names;
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}
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class B<list<string> names> : A<!foreach(name, names, !strconcat(name, ", Sr."))>;
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class C<list<string> names> : A<!foreach(name, names, !strconcat(name, ", Jr."))>;
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class D<list<string> names> : A<!foreach(name, names, !subst("NAME", "John Smith", name))>;
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class Names {
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list<string> values = ["Ken Griffey", "Seymour Cray"];
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}
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def People : Names;
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def Seniors : B<People.values>;
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def Juniors : C<People.values>;
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def Smiths : D<["NAME", "Jane Smith"]>;
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def Unprocessed : D<People.values>;
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class X<list<int> a> {
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list<string> x = !foreach(num, a, !cast<string>(num));
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}
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def DX : X<[0, 1, 2]>;
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class Y<list<int> a> {
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list<int> y = !foreach(num, a, !add(!add(4, num), !add(1, num)));
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}
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def DY: Y<[0, 1]>;
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