[PATCH] D36501: Add flag to request Clang is ABI-compatible with older versions of itself
Paul Robinson via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Fri Aug 25 14:18:59 PDT 2017
probinson added inline comments.
================
Comment at: lib/Driver/ToolChains/Clang.cpp:2934
+ ABICompatArg->render(Args, CmdArgs);
+
// Add runtime flag for PS4 when PGO or Coverage are enabled.
----------------
```
else if (getToolChain().getTriple().isPS4())
CmdArgs.push_back("-fclang-abi-compat=3.2");
```
Which lets us avoid piles of PS4 special cases all over everywhere.
Sony is historically very conservative about compatibility, and we'll be happier defaulting it this way. Setting platform-specific defaults in the driver seems to be pretty common already, this is just one more.
Repository:
rL LLVM
https://reviews.llvm.org/D36501
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