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| author | Marcin Koscielnicki <koriakin@0x04.net> | 2016-05-04 23:37:40 +0000 |
|---|---|---|
| committer | Marcin Koscielnicki <koriakin@0x04.net> | 2016-05-04 23:37:40 +0000 |
| commit | 49edd29c346fff43705460794a3ea6d4c68b955e (patch) | |
| tree | 43b6b8d51fc16ebb8712b0f254bfa9d65b14536d /lib | |
| parent | ce6d6c2e9941ff7307280534ff5570c753236b8f (diff) | |
| download | clang-49edd29c346fff43705460794a3ea6d4c68b955e.tar.gz | |
[SystemZ] Add -mbackchain option.
This option, like the corresponding gcc option, is SystemZ-specific and
enables storing frame backchain links, as specified in the ABI.
Differential Revision: http://reviews.llvm.org/D19891
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@268575 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/CGCall.cpp | 2 | ||||
| -rw-r--r-- | lib/Driver/Tools.cpp | 10 | ||||
| -rw-r--r-- | lib/Frontend/CompilerInvocation.cpp | 2 |
3 files changed, 14 insertions, 0 deletions
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp index 50ea7f7cc3..8a26db2116 100644 --- a/lib/CodeGen/CGCall.cpp +++ b/lib/CodeGen/CGCall.cpp @@ -1714,6 +1714,8 @@ void CodeGenModule::ConstructAttributeList( if (CodeGenOpts.StackRealignment) FuncAttrs.addAttribute("stackrealign"); + if (CodeGenOpts.Backchain) + FuncAttrs.addAttribute("backchain"); // Add target-cpu and target-features attributes to functions. If // we have a decl for the function and it has a target attribute then diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index 1cc1369f33..c688763e69 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -1655,6 +1655,12 @@ void Clang::AddSparcTargetArgs(const ArgList &Args, } } +void Clang::AddSystemZTargetArgs(const ArgList &Args, + ArgStringList &CmdArgs) const { + if (Args.hasFlag(options::OPT_mbackchain, options::OPT_mno_backchain, false)) + CmdArgs.push_back("-mbackchain"); +} + static const char *getSystemZTargetCPU(const ArgList &Args) { if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) return A->getValue(); @@ -4241,6 +4247,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, AddSparcTargetArgs(Args, CmdArgs); break; + case llvm::Triple::systemz: + AddSystemZTargetArgs(Args, CmdArgs); + break; + case llvm::Triple::x86: case llvm::Triple::x86_64: AddX86TargetArgs(Args, CmdArgs); diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index 2091ec4af3..0b154b6743 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -782,6 +782,8 @@ static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK, Opts.CudaGpuBinaryFileNames = Args.getAllArgValues(OPT_fcuda_include_gpubinary); + Opts.Backchain = Args.hasArg(OPT_mbackchain); + return Success; } |