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-rw-r--r--clang/lib/Driver/Tools.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index fde63ca2019..9a205b3f5f4 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -3230,6 +3230,14 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
Args.hasArg(options::OPT_coverage))
CmdArgs.push_back("-femit-coverage-data");
+ if (Args.hasArg(options::OPT_fcoverage_mapping) &&
+ !Args.hasArg(options::OPT_fprofile_instr_generate))
+ D.Diag(diag::err_drv_argument_only_allowed_with)
+ << "-fcoverage-mapping" << "-fprofile-instr-generate";
+
+ if (Args.hasArg(options::OPT_fcoverage_mapping))
+ CmdArgs.push_back("-fcoverage-mapping");
+
if (C.getArgs().hasArg(options::OPT_c) ||
C.getArgs().hasArg(options::OPT_S)) {
if (Output.isFilename()) {
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