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[clang][Frontend] Fix a crash in DiagnosticRenderer. Displaying the problem range could crash if the begin and end of a range is in different files or macros. After the change such range is displayed only as the beginning location. There is a bug for this problem: https://bugs.llvm.org/show_bug.cgi?id=46540 Reviewed By: steakhal Differential Revision: https://reviews.llvm.org/D95860
2021-02-16 22:52:44 +08:00
// RUN: %clang_analyze_cc1 -analyzer-checker=alpha.clone.CloneChecker -analyzer-config alpha.clone.CloneChecker:MinimumCloneComplexity=5 -verify %s
// This test should verify that there is no crash if the detected clone range
// starts in a file and ends in a different file.
void f_end(int i) {
if (i == 10) // expected-warning{{Duplicate code detected}}
#include "Inputs/clone-begin-end-different-file-end.inc"
if (i == 10) // expected-note{{Similar code here}}
#include "Inputs/clone-begin-end-different-file-end.inc"
}
void f_begin(int i) {
#include "Inputs/clone-begin-end-different-file-begin-1.inc"
if (true) {}
#include "Inputs/clone-begin-end-different-file-begin-2.inc"
if (true) {}
}
#define X while (true) {}
void f1m(int i) {
if (i == 10) // expected-warning{{Duplicate code detected}}
#include "Inputs/clone-begin-end-different-file-end-macro.inc"
if (i == 10) // expected-note{{Similar code here}}
#include "Inputs/clone-begin-end-different-file-end-macro.inc"
}
#undef X
#define X if (i == 10)
void f2m(int i) {
#include "Inputs/clone-begin-end-different-file-begin-macro-1.inc"
while (true) { i = 1; }
#include "Inputs/clone-begin-end-different-file-begin-macro-2.inc"
while (true) { i = 1; }
}