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0137aa8679
Summary: If the access is out of bounds, return UndefinedVal. If it is missing an explicit init, return the implicit zero value it must have. Reviewers: NoQ, xazax.hun, george.karpenkov Reviewed By: NoQ Subscribers: szepet, rnkovacs, a.sidorin, cfe-commits Differential Revision: https://reviews.llvm.org/D46823 llvm-svn: 333417
29 lines
713 B
C
29 lines
713 B
C
// RUN: %clang_cc1 -triple i386-apple-darwin10 -analyze -analyzer-checker=core.builtin,debug.ExprInspection -verify %s
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void clang_analyzer_eval(int);
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void initbug() {
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const union { float a; } u = {};
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(void)u.a; // no-crash
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}
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int const parr[2] = {1};
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void constarr() {
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int i = 2;
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clang_analyzer_eval(parr[i]); // expected-warning{{UNDEFINED}}
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i = 1;
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clang_analyzer_eval(parr[i] == 0); // expected-warning{{TRUE}}
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i = -1;
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clang_analyzer_eval(parr[i]); // expected-warning{{UNDEFINED}}
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}
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struct SM {
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int a;
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int b;
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};
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const struct SM sm = {.a = 1};
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void multinit() {
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clang_analyzer_eval(sm.a == 1); // expected-warning{{TRUE}}
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clang_analyzer_eval(sm.b == 0); // expected-warning{{TRUE}}
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}
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