d968b173d3
Add a warning to TableGen for unused template arguments in classes and
multiclasses, for example:
multiclass Foo<int x> {
def bar;
}
$ llvm-tblgen foo.td
foo.td:1:20: warning: unused template argument: Foo::x
multiclass Foo<int x> {
^
A flag '--no-warn-on-unused-template-args' is added to disable the
warning. The warning is disabled for LLVM and sub-projects if
'LLVM_ENABLE_WARNINGS=OFF'.
Reviewed By: RKSimon
Differential Revision: https://reviews.llvm.org/D109359
30 lines
587 B
TableGen
30 lines
587 B
TableGen
// RUN: llvm-tblgen --no-warn-on-unused-template-args %s | FileCheck %s
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// XFAIL: vg_leak
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class Or4<bits<8> Val> {
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bits<8> V = {Val{7}, Val{6}, Val{5}, Val{4}, Val{3}, 1, Val{1}, Val{0} };
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}
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class Whatev<bits<8> x>;
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class Whatever<bits<8> x> {
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bits<8> W = {x{0}, x{1}, x{2}, x{3}, x{4}, x{5}, x{6}, x{7} };
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}
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multiclass X<bits<8> BaseOpc> {
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def bar : Whatev<Or4<BaseOpc>.V >;
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}
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multiclass Y<bits<8> BaseOpc> {
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def foo : Whatever<Or4<BaseOpc>.V >;
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}
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defm a : X<4>;
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// CHECK: def abar
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defm b : Y<8>;
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// CHECK: def bfoo
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// CHECK-NEXT: bits<8> W = { 0, 0, 1, 1, 0, 0, 0, 0 };
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