r349824 - [driver] [analyzer] Fix a backward compatibility issue after r348038.
Artem Dergachev via cfe-commits
cfe-commits at lists.llvm.org
Thu Dec 20 13:26:40 PST 2018
Author: dergachev
Date: Thu Dec 20 13:26:40 2018
New Revision: 349824
URL: http://llvm.org/viewvc/llvm-project?rev=349824&view=rev
Log:
[driver] [analyzer] Fix a backward compatibility issue after r348038.
Since r348038 we emit an error every time an -analyzer-config option is not
found. The driver, however, suppresses this error with another flag,
-analyzer-config-compatibility-mode, so backwards compatibility is maintained,
while analyzer developers still enjoy the new typo-free experience.
The backwards compatibility turns out to be still broken when the -analyze
action is not specified; it is still possible to specify -analyzer-config
in that case. This should be fixed now.
Patch by Kristóf Umann!
Differential Revision: https://reviews.llvm.org/D55823
rdar://problem/46504165
Added:
cfe/trunk/test/Analysis/invalid-a-na-ly-zer-con-fig-value.c
Modified:
cfe/trunk/lib/Driver/ToolChains/Clang.cpp
cfe/trunk/test/Analysis/invalid-analyzer-config-value.c
Modified: cfe/trunk/lib/Driver/ToolChains/Clang.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/Clang.cpp?rev=349824&r1=349823&r2=349824&view=diff
==============================================================================
--- cfe/trunk/lib/Driver/ToolChains/Clang.cpp (original)
+++ cfe/trunk/lib/Driver/ToolChains/Clang.cpp Thu Dec 20 13:26:40 2018
@@ -2360,9 +2360,6 @@ static void RenderAnalyzerOptions(const
// Treat blocks as analysis entry points.
CmdArgs.push_back("-analyzer-opt-analyze-nested-blocks");
- // Enable compatilibily mode to avoid analyzer-config related errors.
- CmdArgs.push_back("-analyzer-config-compatibility-mode=true");
-
// Add default argument set.
if (!Args.hasArg(options::OPT__analyzer_no_default_checks)) {
CmdArgs.push_back("-analyzer-checker=core");
@@ -3738,6 +3735,16 @@ void Clang::ConstructJob(Compilation &C,
if (isa<AnalyzeJobAction>(JA))
RenderAnalyzerOptions(Args, CmdArgs, Triple, Input);
+ // Enable compatilibily mode to avoid analyzer-config related errors.
+ // Since we can't access frontend flags through hasArg, let's manually iterate
+ // through them.
+ for (size_t Index = 0; Index < Args.size(); ++Index) {
+ if (StringRef(Args.getArgString(Index)).contains("-analyzer-config")) {
+ CmdArgs.push_back("-analyzer-config-compatibility-mode=true");
+ break;
+ }
+ }
+
CheckCodeGenerationOptions(D, Args);
unsigned FunctionAlignment = ParseFunctionAlignment(TC, Args);
Added: cfe/trunk/test/Analysis/invalid-a-na-ly-zer-con-fig-value.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Analysis/invalid-a-na-ly-zer-con-fig-value.c?rev=349824&view=auto
==============================================================================
--- cfe/trunk/test/Analysis/invalid-a-na-ly-zer-con-fig-value.c (added)
+++ cfe/trunk/test/Analysis/invalid-a-na-ly-zer-con-fig-value.c Thu Dec 20 13:26:40 2018
@@ -0,0 +1,79 @@
+// Same as invalid-analyzer-config-value.c but without -analyzer-config
+// in the file name, so that argument string pattern matching
+// didn't accidentally match it.
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-config notes-as-events=yesplease \
+// RUN: 2>&1 | FileCheck %s -check-prefix=CHECK-BOOL-INPUT
+
+// CHECK-BOOL-INPUT: (frontend): invalid input for analyzer-config option
+// CHECK-BOOL-INPUT-SAME: 'notes-as-events', that expects a boolean value
+
+// RUN: %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-config-compatibility-mode=true \
+// RUN: -analyzer-config notes-as-events=yesplease
+
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-config max-inlinable-size=400km/h \
+// RUN: 2>&1 | FileCheck %s -check-prefix=CHECK-UINT-INPUT
+
+// CHECK-UINT-INPUT: (frontend): invalid input for analyzer-config option
+// CHECK-UINT-INPUT-SAME: 'max-inlinable-size', that expects an unsigned
+// CHECK-UINT-INPUT-SAME: value
+
+// RUN: %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-config-compatibility-mode=true \
+// RUN: -analyzer-config max-inlinable-size=400km/h
+
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-config ctu-dir=0123012301230123 \
+// RUN: 2>&1 | FileCheck %s -check-prefix=CHECK-FILENAME-INPUT
+
+// CHECK-FILENAME-INPUT: (frontend): invalid input for analyzer-config option
+// CHECK-FILENAME-INPUT-SAME: 'ctu-dir', that expects a filename
+// CHECK-FILENAME-INPUT-SAME: value
+
+// RUN: %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-config-compatibility-mode=true \
+// RUN: -analyzer-config ctu-dir=0123012301230123
+
+
+// RUN: not %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-config no-false-positives=true \
+// RUN: 2>&1 | FileCheck %s -check-prefix=CHECK-UNKNOWN-CFG
+
+// CHECK-UNKNOWN-CFG: (frontend): unknown analyzer-config 'no-false-positives'
+
+// RUN: %clang_analyze_cc1 -verify %s \
+// RUN: -analyzer-checker=core \
+// RUN: -analyzer-config-compatibility-mode=true \
+// RUN: -analyzer-config no-false-positives=true
+
+
+// Test the driver properly using "analyzer-config-compatibility-mode=true",
+// no longer causing an error on input error.
+// RUN: %clang --analyze %s
+
+// RUN: not %clang --analyze %s \
+// RUN: -Xclang -analyzer-config -Xclang no-false-positives=true \
+// RUN: -Xclang -analyzer-config-compatibility-mode=false \
+// RUN: 2>&1 | FileCheck %s -check-prefix=CHECK-NO-COMPAT
+
+// CHECK-NO-COMPAT: error: unknown analyzer-config 'no-false-positives'
+
+// Test the driver properly using "analyzer-config-compatibility-mode=true",
+// even if -analyze isn't specified.
+// RUN: %clang -Xclang -analyzer-config -Xclang remember=TheVasa %s
+
+// expected-no-diagnostics
+
+int main() {}
Modified: cfe/trunk/test/Analysis/invalid-analyzer-config-value.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Analysis/invalid-analyzer-config-value.c?rev=349824&r1=349823&r2=349824&view=diff
==============================================================================
--- cfe/trunk/test/Analysis/invalid-analyzer-config-value.c (original)
+++ cfe/trunk/test/Analysis/invalid-analyzer-config-value.c Thu Dec 20 13:26:40 2018
@@ -66,6 +66,10 @@
// CHECK-NO-COMPAT: error: unknown analyzer-config 'no-false-positives'
+// Test the driver properly using "analyzer-config-compatibility-mode=true",
+// even if -analyze isn't specified.
+// RUN: %clang -Xclang -analyzer-config -Xclang remember=TheVasa %s
+
// expected-no-diagnostics
int main() {}
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