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| author | Nuno Lopes <nunoplopes@sapo.pt> | 2012-05-08 22:10:46 +0000 |
|---|---|---|
| committer | Nuno Lopes <nunoplopes@sapo.pt> | 2012-05-08 22:10:46 +0000 |
| commit | b3198a841e7f356f171f1e11faff014b2deb1eb8 (patch) | |
| tree | f115cc1178faeca731a111d9a02f0ccad49f9dba /lib/Frontend | |
| parent | 4213e389d6f8fa96ab30eec0d932e4e3eee32997 (diff) | |
add -fbounds-checking option.
When enabled, clang generates bounds checks for array and pointers dereferences. Work to follow in LLVM's backend.
OK'ed by Chad; thanks for the review.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156431 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Frontend')
| -rw-r--r-- | lib/Frontend/CompilerInvocation.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index 0635be6667..3a7efbcdab 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -675,6 +675,8 @@ static void LangOptsToArgs(const LangOptions &Opts, ToArgsList &Res) { Res.push_back("-fno-operator-names"); if (Opts.PascalStrings) Res.push_back("-fpascal-strings"); + if (Opts.BoundsChecking > 0) + Res.push_back("-fbounds-checking=" + llvm::utostr(Opts.BoundsChecking)); if (Opts.CatchUndefined) Res.push_back("-fcatch-undefined-behavior"); if (Opts.AddressSanitizer) @@ -1953,7 +1955,11 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, Opts.ObjCNonFragileABI2 = true; Opts.ObjCDefaultSynthProperties = Args.hasArg(OPT_fobjc_default_synthesize_properties); - Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior); + Opts.BoundsChecking = 0; + if ((Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior))) + Opts.BoundsChecking = 5; + Opts.BoundsChecking = Args.getLastArgIntValue(OPT_fbounds_checking_EQ, + Opts.BoundsChecking, Diags); Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls); Opts.PackStruct = Args.getLastArgIntValue(OPT_fpack_struct_EQ, 0, Diags); Opts.PICLevel = Args.getLastArgIntValue(OPT_pic_level, 0, Diags); |