42 lines
1.7 KiB
C
42 lines
1.7 KiB
C
// RUN: %clang_analyze_cc1 -analyzer-checker=core.BitwiseShift \
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// RUN: -analyzer-config core.BitwiseShift:Pedantic=true \
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// RUN: -analyzer-checker=debug.ExprInspection \
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// RUN: -analyzer-config eagerly-assume=false \
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// RUN: -verify=expected,c \
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// RUN: -triple x86_64-pc-linux-gnu -x c %s \
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// RUN: -Wno-shift-count-negative -Wno-shift-negative-value \
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// RUN: -Wno-shift-count-overflow -Wno-shift-overflow \
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// RUN: -Wno-shift-sign-overflow
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//
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// RUN: %clang_analyze_cc1 -analyzer-checker=core.BitwiseShift \
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// RUN: -analyzer-config core.BitwiseShift:Pedantic=true \
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// RUN: -analyzer-checker=debug.ExprInspection \
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// RUN: -analyzer-config eagerly-assume=false \
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// RUN: -verify=expected,cxx \
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// RUN: -triple x86_64-pc-linux-gnu -x c++ -std=c++14 %s \
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// RUN: -Wno-shift-count-negative -Wno-shift-negative-value \
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// RUN: -Wno-shift-count-overflow -Wno-shift-overflow \
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// RUN: -Wno-shift-sign-overflow
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// Tests for validating the state updates provided by the BitwiseShift checker.
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// These clang_analyzer_value() tests are in a separate file because
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// debug.ExprInspection repeats each 'warning' with an superfluous 'note', so
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// note level output (-analyzer-output=text) is not enabled in this file.
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void clang_analyzer_value(int);
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void clang_analyzer_eval(int);
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int state_update_generic(int left, int right) {
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int x = left << right;
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clang_analyzer_value(left); // expected-warning {{32s:{ [0, 2147483647] } }}
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clang_analyzer_value(right); // expected-warning {{32s:{ [0, 31] } }}
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return x;
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}
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int state_update_exact_shift(int arg) {
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int x = 65535 << arg;
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clang_analyzer_value(arg);
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// c-warning@-1 {{32s:{ [0, 15] } }}
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// cxx-warning@-2 {{32s:{ [0, 16] } }}
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return x;
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}
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