363dd8e4b8
The current argument order has "expected" and "actual" the wrong way around, so that the diff shows the change from expected to actual, not from actual to expected. Namely, if the expected diagnostics contains the string "foo", but the analyzer emits "bar", we really want to see: ``` - foo + bar ``` not ``` - bar + foo ``` since adapting to most changes would require applying that diff to the expected output. Differential Revision: https://reviews.llvm.org/D56340 llvm-svn: 350866
37 lines
1.6 KiB
C++
37 lines
1.6 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=text -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false -verify %s
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// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-output=plist-multi-file -analyzer-config graph-trim-interval=5 -analyzer-config suppress-null-return-paths=false %s -o %t.plist
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// RUN: cat %t.plist | %diff_plist %S/Inputs/expected-plists/eager-reclamation-path-notes.cpp.plist -
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typedef struct {
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int getValue();
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} IntWrapper;
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IntWrapper *getNullWrapper() {
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return 0;
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// expected-note@-1 {{Returning null pointer}}
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}
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int memberCallBaseDisappears() {
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// In this case, we need the lvalue-to-rvalue cast for 'ptr' to disappear,
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// which means we need to trigger reclamation between that and the ->
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// operator.
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//
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// Note that this test is EXTREMELY brittle because it's a negative test:
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// we want to show that even if the node for the rvalue of 'ptr' disappears,
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// we get the same results as if it doesn't. The test should never fail even
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// if our node reclamation policy changes, but it could easily not be testing
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// anything at that point.
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IntWrapper *ptr = getNullWrapper();
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// expected-note@-1 {{Calling 'getNullWrapper'}}
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// expected-note@-2 {{Returning from 'getNullWrapper'}}
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// expected-note@-3 {{'ptr' initialized to a null pointer value}}
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// Burn some nodes to trigger reclamation.
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int unused = 1;
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(void)unused;
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return ptr->getValue(); // expected-warning {{Called C++ object pointer is null}}
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// expected-note@-1 {{Called C++ object pointer is null}}
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}
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