[clang-tidy] Utilize comparison operation implemented in APInt

This is a fix for #53963.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D122544
This commit is contained in:
Danny Mösch
2022-03-27 16:41:32 +02:00
parent eee536dd31
commit ff60af91ac
3 changed files with 8 additions and 2 deletions

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@@ -20,7 +20,7 @@ namespace bugprone {
namespace {
AST_MATCHER_P(IntegerLiteral, isBiggerThan, unsigned, N) {
return Node.getValue().getZExtValue() > N;
return Node.getValue().ugt(N);
}
AST_MATCHER_P2(Expr, hasSizeOfDescendant, int, Depth,

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@@ -122,6 +122,9 @@ Changes in existing checks
- Fixed a false positive in :doc:`misc-redundant-expression <clang-tidy/checks/misc-redundant-expression>`
involving overloaded comparison operators.
- Fixed a crash in :doc:`bugprone-sizeof-expression <clang-tidy/checks/bugprone-sizeof-expression>` when
`sizeof(...)` is compared agains a `__int128_t`.
Removed checks
^^^^^^^^^^^^^^

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@@ -172,7 +172,10 @@ int Foo() { int A[T]; return sizeof(T); }
template <typename T>
int Bar() { T A[5]; return sizeof(A[0]) / sizeof(T); }
// CHECK-MESSAGES: :[[@LINE-1]]:28: warning: suspicious usage of sizeof pointer 'sizeof(T)/sizeof(T)'
int Test3() { return Foo<42>() + Bar<char>(); }
template <__int128_t N>
bool Baz() { return sizeof(A) < N; }
// CHECK-MESSAGES: :[[@LINE-1]]:21: warning: suspicious comparison of 'sizeof(expr)' to a constant
int Test3() { return Foo<42>() + Bar<char>() + Baz<-1>(); }
static const char* kABC = "abc";
static const wchar_t* kDEF = L"def";