[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. (clang part)
llvm-svn: 304631
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@ -293,6 +293,9 @@ def fsanitize_coverage_trace_gep
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def fsanitize_coverage_8bit_counters
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: Flag<["-"], "fsanitize-coverage-8bit-counters">,
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HelpText<"Enable frequency counters in sanitizer coverage">;
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def fsanitize_coverage_inline_8bit_counters
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: Flag<["-"], "fsanitize-coverage-inline-8bit-counters">,
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HelpText<"Enable inline 8-bit counters in sanitizer coverage">;
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def fsanitize_coverage_trace_pc
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: Flag<["-"], "fsanitize-coverage-trace-pc">,
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HelpText<"Enable PC tracing in sanitizer coverage">;
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@ -163,6 +163,7 @@ CODEGENOPT(SanitizeCoverageTracePC, 1, 0) ///< Enable PC tracing
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///< in sanitizer coverage.
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CODEGENOPT(SanitizeCoverageTracePCGuard, 1, 0) ///< Enable PC tracing with guard
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///< in sanitizer coverage.
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CODEGENOPT(SanitizeCoverageInline8bitCounters, 1, 0) ///< Use inline 8bit counters.
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CODEGENOPT(SanitizeCoverageNoPrune, 1, 0) ///< Disable coverage pruning.
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CODEGENOPT(SanitizeStats , 1, 0) ///< Collect statistics for sanitizers.
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CODEGENOPT(SimplifyLibCalls , 1, 1) ///< Set when -fbuiltin is enabled.
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@ -187,6 +187,7 @@ static void addSanitizerCoveragePass(const PassManagerBuilder &Builder,
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Opts.TracePC = CGOpts.SanitizeCoverageTracePC;
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Opts.TracePCGuard = CGOpts.SanitizeCoverageTracePCGuard;
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Opts.NoPrune = CGOpts.SanitizeCoverageNoPrune;
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Opts.Inline8bitCounters = CGOpts.SanitizeCoverageInline8bitCounters;
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PM.add(createSanitizerCoverageModulePass(Opts));
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}
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@ -48,13 +48,14 @@ enum CoverageFeature {
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CoverageBB = 1 << 1,
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CoverageEdge = 1 << 2,
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CoverageIndirCall = 1 << 3,
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CoverageTraceBB = 1 << 4,
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CoverageTraceBB = 1 << 4, // Deprecated.
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CoverageTraceCmp = 1 << 5,
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CoverageTraceDiv = 1 << 6,
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CoverageTraceGep = 1 << 7,
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Coverage8bitCounters = 1 << 8,
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Coverage8bitCounters = 1 << 8, // Deprecated.
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CoverageTracePC = 1 << 9,
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CoverageTracePCGuard = 1 << 10,
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CoverageInline8bitCounters = 1 << 12,
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CoverageNoPrune = 1 << 11,
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};
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@ -530,7 +531,8 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
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}
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// trace-pc w/o func/bb/edge implies edge.
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if ((CoverageFeatures & (CoverageTracePC | CoverageTracePCGuard)) &&
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if ((CoverageFeatures &
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(CoverageTracePC | CoverageTracePCGuard | CoverageInline8bitCounters)) &&
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!(CoverageFeatures & InsertionPointTypes))
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CoverageFeatures |= CoverageEdge;
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@ -637,6 +639,7 @@ void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args,
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std::make_pair(Coverage8bitCounters, "-fsanitize-coverage-8bit-counters"),
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std::make_pair(CoverageTracePC, "-fsanitize-coverage-trace-pc"),
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std::make_pair(CoverageTracePCGuard, "-fsanitize-coverage-trace-pc-guard"),
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std::make_pair(CoverageInline8bitCounters, "-fsanitize-coverage-inline-8bit-counters"),
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std::make_pair(CoverageNoPrune, "-fsanitize-coverage-no-prune")};
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for (auto F : CoverageFlags) {
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if (CoverageFeatures & F.first)
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@ -798,6 +801,7 @@ int parseCoverageFeatures(const Driver &D, const llvm::opt::Arg *A) {
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.Case("trace-pc", CoverageTracePC)
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.Case("trace-pc-guard", CoverageTracePCGuard)
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.Case("no-prune", CoverageNoPrune)
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.Case("inline-8bit-counters", CoverageInline8bitCounters)
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.Default(0);
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if (F == 0)
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D.Diag(clang::diag::err_drv_unsupported_option_argument)
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@ -768,6 +768,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
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Opts.SanitizeCoverageTracePCGuard =
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Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
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Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune);
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Opts.SanitizeCoverageInline8bitCounters =
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Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters);
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Opts.SanitizeMemoryTrackOrigins =
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getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
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Opts.SanitizeMemoryUseAfterDtor =
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@ -84,6 +84,9 @@
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// RUN: %clang -target x86_64-linux-gnu -fsanitize-coverage=no-prune,func,trace-pc-guard %s -### 2>&1 | FileCheck %s --check-prefix=CHECK_NOPRUNE
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// CHECK_NOPRUNE: -fsanitize-coverage-no-prune
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// RUN: %clang -target x86_64-linux-gnu -fsanitize-coverage=inline-8bit-counters %s -### 2>&1 | FileCheck %s --check-prefix=CHECK_INLINE8BIT
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// CHECK_INLINE8BIT: -fsanitize-coverage-inline-8bit-counters
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// RUN: %clang_cl --target=i386-pc-win32 -fsanitize=address -fsanitize-coverage=func,trace-pc-guard -c -### -- %s 2>&1 | FileCheck %s -check-prefix=CLANG-CL-COVERAGE
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// CLANG-CL-COVERAGE-NOT: error:
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// CLANG-CL-COVERAGE-NOT: warning:
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