Fix linking of DFSan + coverage.

Broken in r272717 because of no test coverage.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@272853 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Driver/SanitizerArgs.cpp

@@ -162,7 +162,7 @@ bool SanitizerArgs::needsUbsanRt() const {
   return ((Sanitizers.Mask & NeedsUbsanRt & ~TrapSanitizers.Mask) ||
           CoverageFeatures) &&
          !Sanitizers.has(Address) && !Sanitizers.has(Memory) &&
-         !Sanitizers.has(Thread) && !CfiCrossDso;
+         !Sanitizers.has(Thread) && !Sanitizers.has(DataFlow) && !CfiCrossDso;
 }
 
 bool SanitizerArgs::needsCfiRt() const {

test/Driver/sanitizer-ld.c

@@ -293,6 +293,61 @@
 // CHECK-LSAN-ASAN-LINUX: libclang_rt.asan-x86_64
 // CHECK-LSAN-ASAN-LINUX-NOT: libclang_rt.lsan
 
+// RUN: %clang -fsanitize=address -fsanitize-coverage=func %s -### -o %t.o 2>&1 \
+// RUN:     -target x86_64-unknown-linux \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-ASAN-COV-LINUX %s
+// CHECK-ASAN-COV-LINUX: "{{.*}}ld{{(.exe)?}}"
+// CHECK-ASAN-COV-LINUX: "-whole-archive" "{{.*}}libclang_rt.asan-x86_64.a" "-no-whole-archive"
+// CHECK-ASAN-COV-LINUX: "--dynamic-list={{.*}}libclang_rt.asan-x86_64.a.syms"
+// CHECK-ASAN-COV-LINUX-NOT: libclang_rt.ubsan
+// CHECK-ASAN-COV-LINUX-NOT: "-lstdc++"
+// CHECK-ASAN-COV-LINUX: "-lpthread"
+
+// RUN: %clang -fsanitize=memory -fsanitize-coverage=func %s -### -o %t.o 2>&1 \
+// RUN:     -target x86_64-unknown-linux \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-MSAN-COV-LINUX %s
+// CHECK-MSAN-COV-LINUX: "{{.*}}ld{{(.exe)?}}"
+// CHECK-MSAN-COV-LINUX: "-whole-archive" "{{.*}}libclang_rt.msan-x86_64.a" "-no-whole-archive"
+// CHECK-MSAN-COV-LINUX: "--dynamic-list={{.*}}libclang_rt.msan-x86_64.a.syms"
+// CHECK-MSAN-COV-LINUX-NOT: libclang_rt.ubsan
+// CHECK-MSAN-COV-LINUX-NOT: "-lstdc++"
+// CHECK-MSAN-COV-LINUX: "-lpthread"
+
+// RUN: %clang -fsanitize=dataflow -fsanitize-coverage=func %s -### -o %t.o 2>&1 \
+// RUN:     -target x86_64-unknown-linux \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-DFSAN-COV-LINUX %s
+// CHECK-DFSAN-COV-LINUX: "{{.*}}ld{{(.exe)?}}"
+// CHECK-DFSAN-COV-LINUX: "-whole-archive" "{{.*}}libclang_rt.dfsan-x86_64.a" "-no-whole-archive"
+// CHECK-DFSAN-COV-LINUX: "--dynamic-list={{.*}}libclang_rt.dfsan-x86_64.a.syms"
+// CHECK-DFSAN-COV-LINUX-NOT: libclang_rt.ubsan
+// CHECK-DFSAN-COV-LINUX-NOT: "-lstdc++"
+// CHECK-DFSAN-COV-LINUX: "-lpthread"
+
+// RUN: %clang -fsanitize=undefined -fsanitize-coverage=func %s -### -o %t.o 2>&1 \
+// RUN:     -target x86_64-unknown-linux \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-UBSAN-COV-LINUX %s
+// CHECK-UBSAN-COV-LINUX: "{{.*}}ld{{(.exe)?}}"
+// CHECK-UBSAN-COV-LINUX: "-whole-archive" "{{.*}}libclang_rt.ubsan_standalone-x86_64.a" "-no-whole-archive"
+// CHECK-UBSAN-COV-LINUX: "--dynamic-list={{.*}}libclang_rt.ubsan_standalone-x86_64.a.syms"
+// CHECK-UBSAN-COV-LINUX-NOT: libclang_rt.ubsan
+// CHECK-UBSAN-COV-LINUX-NOT: "-lstdc++"
+// CHECK-UBSAN-COV-LINUX: "-lpthread"
+
+// RUN: %clang -fsanitize-coverage=func %s -### -o %t.o 2>&1 \
+// RUN:     -target x86_64-unknown-linux \
+// RUN:     --sysroot=%S/Inputs/basic_linux_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-COV-LINUX %s
+// CHECK-COV-LINUX: "{{.*}}ld{{(.exe)?}}"
+// CHECK-COV-LINUX: "-whole-archive" "{{.*}}libclang_rt.ubsan_standalone-x86_64.a" "-no-whole-archive"
+// CHECK-COV-LINUX: "--dynamic-list={{.*}}libclang_rt.ubsan_standalone-x86_64.a.syms"
+// CHECK-COV-LINUX-NOT: libclang_rt.ubsan
+// CHECK-COV-LINUX-NOT: "-lstdc++"
+// CHECK-COV-LINUX: "-lpthread"
+
 // CFI by itself does not link runtime libraries.
 // RUN: %clang -fsanitize=cfi %s -### -o %t.o 2>&1 \
 // RUN:     -target x86_64-unknown-linux \