[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. (clang part)

llvm-svn: 304631

1 files changed, 7 insertions, 3 deletions

diff --git a/clang/lib/Driver/SanitizerArgs.cpp b/clang/lib/Driver/SanitizerArgs.cpp
index 9ab2e176845..ad2b4ada9a8 100644
--- a/clang/lib/Driver/SanitizerArgs.cpp
+++ b/clang/lib/Driver/SanitizerArgs.cpp
@@ -48,13 +48,14 @@ enum CoverageFeature {
   CoverageBB = 1 << 1,
   CoverageEdge = 1 << 2,
   CoverageIndirCall = 1 << 3,
-  CoverageTraceBB = 1 << 4,
+  CoverageTraceBB = 1 << 4,  // Deprecated.
   CoverageTraceCmp = 1 << 5,
   CoverageTraceDiv = 1 << 6,
   CoverageTraceGep = 1 << 7,
-  Coverage8bitCounters = 1 << 8,
+  Coverage8bitCounters = 1 << 8,  // Deprecated.
   CoverageTracePC = 1 << 9,
   CoverageTracePCGuard = 1 << 10,
+  CoverageInline8bitCounters = 1 << 12,
   CoverageNoPrune = 1 << 11,
 };
 
@@ -530,7 +531,8 @@ SanitizerArgs::SanitizerArgs(const ToolChain &TC,
   }
 
   // trace-pc w/o func/bb/edge implies edge.
-  if ((CoverageFeatures & (CoverageTracePC | CoverageTracePCGuard)) &&
+  if ((CoverageFeatures &
+       (CoverageTracePC | CoverageTracePCGuard | CoverageInline8bitCounters)) &&
       !(CoverageFeatures & InsertionPointTypes))
     CoverageFeatures |= CoverageEdge;
 
@@ -637,6 +639,7 @@ void SanitizerArgs::addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args,
     std::make_pair(Coverage8bitCounters, "-fsanitize-coverage-8bit-counters"),
     std::make_pair(CoverageTracePC, "-fsanitize-coverage-trace-pc"),
     std::make_pair(CoverageTracePCGuard, "-fsanitize-coverage-trace-pc-guard"),
+    std::make_pair(CoverageInline8bitCounters, "-fsanitize-coverage-inline-8bit-counters"),
     std::make_pair(CoverageNoPrune, "-fsanitize-coverage-no-prune")};
   for (auto F : CoverageFlags) {
     if (CoverageFeatures & F.first)
@@ -798,6 +801,7 @@ int parseCoverageFeatures(const Driver &D, const llvm::opt::Arg *A) {
         .Case("trace-pc", CoverageTracePC)
         .Case("trace-pc-guard", CoverageTracePCGuard)
         .Case("no-prune", CoverageNoPrune)
+        .Case("inline-8bit-counters", CoverageInline8bitCounters)
         .Default(0);
     if (F == 0)
       D.Diag(clang::diag::err_drv_unsupported_option_argument)