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| author | Douglas Yung <douglas.yung@sony.com> | 2020-10-19 18:17:34 -0700 |
|---|---|---|
| committer | Douglas Yung <douglas.yung@sony.com> | 2020-10-19 18:17:34 -0700 |
| commit | 774ab60125eeaeac8bf2470b7aaa6aa428d68453 (patch) | |
| tree | 9547a7f3259561d4d1fb6f47f9bbfad7b69d99c6 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | ae9d0400283229032fb3795b7b50920bf9be38dc (diff) | |
| download | llvm-774ab60125eeaeac8bf2470b7aaa6aa428d68453.zip llvm-774ab60125eeaeac8bf2470b7aaa6aa428d68453.tar.gz llvm-774ab60125eeaeac8bf2470b7aaa6aa428d68453.tar.bz2 | |
Add option to use older clang ABI behavior when passing certain union types as function arguments
Recently commit D78699 (commit 26cfb6e562f1), fixed clang's behavior with respect
to passing a union type through a register to correctly follow the ABI. However,
this is an ABI breaking change with earlier versions of the clang compiler, so we
should add an -fclang-abi-compat option to address this. Additionally, the PS4 ABI
requires the older behavior, so that is added as well.
This change adds a Ver11 value to the ClangABI enum that when it is set (or the
target is the PS4 triple), we skip the ABI fix introduced in D78699.
Differential Revision: https://reviews.llvm.org/D89747
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
| -rw-r--r-- | clang/lib/Frontend/CompilerInvocation.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp index c518606..7cbd5b3 100644 --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -3460,6 +3460,8 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, Opts.setClangABICompat(LangOptions::ClangABI::Ver7); else if (Major <= 9) Opts.setClangABICompat(LangOptions::ClangABI::Ver9); + else if (Major <= 11) + Opts.setClangABICompat(LangOptions::ClangABI::Ver11); } else if (Ver != "latest") { Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << A->getValue(); |