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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2011-12-16 19:06:07 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2011-12-16 19:06:07 +0000 |
| commit | 08d6e032a2a0a8656d12b3b7b93942987bb12eb7 (patch) | |
| tree | 632b74cc7329419d23c53cb941e19ed16a587d5b /lib/Driver/Tools.cpp | |
| parent | d3d8548e75f3fb6db53ed0927c1df30d78f4ce1d (diff) | |
C++11 constexpr: Add note stacks containing backtraces if constant evaluation
fails within a call to a constexpr function. Add -fconstexpr-backtrace-limit
argument to driver and frontend, to control the maximum number of notes so
produced (default 10). Fix APValue printing to be able to pretty-print all
APValue types, and move the testing for this functionality from a unittest to
a -verify test now that it's visible in clang's output.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146749 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Driver/Tools.cpp')
| -rw-r--r-- | lib/Driver/Tools.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index 60e6d3dd32..798d787c65 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -1808,6 +1808,11 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, CmdArgs.push_back(A->getValue(Args)); } + if (Arg *A = Args.getLastArg(options::OPT_fconstexpr_backtrace_limit_EQ)) { + CmdArgs.push_back("-fconstexpr-backtrace-limit"); + CmdArgs.push_back(A->getValue(Args)); + } + // Pass -fmessage-length=. CmdArgs.push_back("-fmessage-length"); if (Arg *A = Args.getLastArg(options::OPT_fmessage_length_EQ)) { |