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Revert "[analyzer] Prevent misuses of -analyze-function"

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This reverts commit 9d6a615973.

Exit Code: 1

Command Output (stderr):
--
/scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/Analysis/analyze-function-guide.cpp:53:21: error: CHECK-EMPTY-NOT: excluded string found in input // CHECK-EMPTY-NOT: Every top-level function was skipped.
                    ^
<stdin>:1:1: note: found here
Every top-level function was skipped.
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Input file: <stdin>
Check file: /scratch/buildbot/bothome/clang-ve-ninja/llvm-project/clang/test/Analysis/analyze-function-guide.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
        1: Every top-level function was skipped.
not:53     !~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  error: no match expected
        2: Pass the -analyzer-display-progress for tracking which functions are analyzed.
>>>>>>
This commit is contained in:
Balazs Benics 2022-02-02 11:44:27 +01:00
parent f8f55f7e03
commit e99abc5d8a
2 changed files with 0 additions and 104 deletions
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30
clang/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
View File

@ -501,28 +501,6 @@ static bool fileContainsString(StringRef Substring, ASTContext &C) {
return Buffer.contains(Substring);
}
static void reportAnalyzerFunctionMisuse(const AnalyzerOptions &Opts,
const ASTContext &Ctx) {
llvm::errs() << "Every top-level function was skipped.\n";
if (!Opts.AnalyzerDisplayProgress)
llvm::errs() << "Pass the -analyzer-display-progress for tracking which "
"functions are analyzed.\n";
bool HasBrackets =
Opts.AnalyzeSpecificFunction.find("(") != std::string::npos;
if (Ctx.getLangOpts().CPlusPlus && !HasBrackets) {
llvm::errs()
<< "For analyzing C++ code you need to pass the function parameter "
"list: -analyze-function=\"foobar(int, _Bool)\"\n";
} else if (!Ctx.getLangOpts().CPlusPlus && HasBrackets) {
llvm::errs() << "For analyzing C code you shouldn't pass the function "
"parameter list, only the name of the function: "
"-analyze-function=foobar\n";
}
}
void AnalysisConsumer::runAnalysisOnTranslationUnit(ASTContext &C) {
BugReporter BR(*Mgr);
TranslationUnitDecl *TU = C.getTranslationUnitDecl();
@ -559,14 +537,6 @@ void AnalysisConsumer::runAnalysisOnTranslationUnit(ASTContext &C) {
BR.FlushReports();
RecVisitorBR = nullptr;
// If the user wanted to analyze a specific function and the number of basic
// blocks analyzed is zero, than the user might not specified the function
// name correctly.
// FIXME: The user might have analyzed the requested function in Syntax mode,
// but we are unaware of that.
if (!Opts->AnalyzeSpecificFunction.empty() && NumFunctionsAnalyzed == 0)
reportAnalyzerFunctionMisuse(*Opts, *Ctx);
}
void AnalysisConsumer::reportAnalyzerProgress(StringRef S) {

74
clang/test/Analysis/analyze-function-guide.cpp
View File

@ -1,74 +0,0 @@
int fizzbuzz(int x, bool y) {
return x + y;
}
// C++ but not uses parentheses in the '-analyze-function' option.
//
// RUN: %clang_analyze_cc1 -analyzer-checker=core \
// RUN: -analyze-function='missing_fn' -x c++ \
// RUN: 2>&1 %s | FileCheck %s -check-prefix=CHECK-CXX
//
// CHECK-CXX: Every top-level function was skipped.
// CHECK-CXX-NEXT: Pass the -analyzer-display-progress for tracking which functions are analyzed.
// CHECK-CXX-NEXT: For analyzing C++ code you need to pass the function parameter list: -analyze-function="foobar(int, _Bool)"
// C but uses parentheses in the '-analyze-function' option.
//
// RUN: %clang_analyze_cc1 -analyzer-checker=core \
// RUN: -analyze-function='missing_fn()' -x c -Dbool=_Bool \
// RUN: 2>&1 %s | FileCheck %s -check-prefix=CHECK-C
//
// CHECK-C: Every top-level function was skipped.
// CHECK-C-NEXT: Pass the -analyzer-display-progress for tracking which functions are analyzed.
// CHECK-C-NEXT: For analyzing C code you shouldn't pass the function parameter list, only the name of the function: -analyze-function=foobar
// The user passed the '-analyzer-display-progress' option, we don't need to advocate it.
//
// RUN: %clang_analyze_cc1 -analyzer-checker=core \
// RUN: -analyze-function=missing_fn \
// RUN: -analyzer-display-progress -x c -Dbool=_Bool \
// RUN: 2>&1 %s | FileCheck %s -check-prefix=CHECK-DONT-ADVOCATE-DISPLAY-PROGRESS
//
// CHECK-DONT-ADVOCATE-DISPLAY-PROGRESS: Every top-level function was skipped.
// CHECK-DONT-ADVOCATE-DISPLAY-PROGRESS-NOT: Pass the -analyzer-display-progress
// The user passed the '-analyze-function' option but that doesn't mach to any declaration.
//
// RUN: %clang_analyze_cc1 -analyzer-checker=core \
// RUN: -analyze-function='missing_fn()' -x c++ \
// RUN: 2>&1 %s | FileCheck %s -check-prefix=CHECK-ADVOCATE-DISPLAY-PROGRESS
//
// CHECK-ADVOCATE-DISPLAY-PROGRESS: Every top-level function was skipped.
// CHECK-ADVOCATE-DISPLAY-PROGRESS-NEXT: Pass the -analyzer-display-progress for tracking which functions are analyzed.
// CHECK-ADVOCATE-DISPLAY-PROGRESS-NOT: For analyzing
// The user passed the '-analyze-function' option and that matches on a
// declaration in C++ mode.
//
// RUN: %clang_analyze_cc1 -analyzer-checker=core \
// RUN: -analyze-function='fizzbuzz(int, _Bool)' -x c++ \
// RUN: 2>&1 %s | FileCheck %s -check-prefix=CHECK-EMPTY --allow-empty
//
// Expected empty standard output.
// CHECK-EMPTY-NOT: Every top-level function was skipped.
// The user passed the '-analyze-function' option and that matches on a
// declaration in C mode.
//
// RUN: %clang_analyze_cc1 -analyzer-checker=core \
// RUN: -analyze-function='fizzbuzz' -x c -Dbool=_Bool \
// RUN: 2>&1 %s | FileCheck %s -check-prefix=CHECK-EMPTY2 --allow-empty
//
// Expected empty standard output.
// CHECK-EMPTY2-NOT: Every top-level function was skipped.
// Same as the previous but syntax mode only.
// FIXME: This should have empty standard output.
//
// RUN: %clang_analyze_cc1 -analyzer-checker=core -analyzer-config ipa=none \
// RUN: -analyze-function='fizzbuzz(int, _Bool)' -x c++ \
// RUN: 2>&1 %s | FileCheck %s -check-prefix=CHECK-EMPTY3 --allow-empty
//
// FIXME: This should have empty standard output.
// CHECK-EMPTY3: Every top-level function was skipped.
// CHECK-EMPTY3-NEXT: Pass the -analyzer-display-progress for tracking which functions are analyzed.