[driver][mips] Adjust target triple accordingly to provided ABI name
Explicitly selected MIPS ABI using the `-mabi` option implies
corresponding target triple. For 'O32' ABI it's a 32-bit target triple
like `mips-linux-gnu`. For 'N32' and 'N64' ABIs it's a 64-bit target
triple like `mips64-linux-gnu`. This patch adjusts target triple
accordingly these rules like we do for pseudo-target flags '-m64',
'-m32' etc already.
Differential revision: https://reviews.llvm.org/D52290
llvm-svn: 343169
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 4439e72..8266f92 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -481,6 +481,16 @@
Target.setVendorName("intel");
}
+ // If target is MIPS adjust the target triple
+ // accordingly to provided ABI name.
+ A = Args.getLastArg(options::OPT_mabi_EQ);
+ if (A && Target.isMIPS())
+ Target = llvm::StringSwitch<llvm::Triple>(A->getValue())
+ .Case("32", Target.get32BitArchVariant())
+ .Case("n32", Target.get64BitArchVariant())
+ .Case("64", Target.get64BitArchVariant())
+ .Default(Target);
+
return Target;
}