MaskRay added inline comments.

================
Comment at: clang/test/Driver/debug-default-version.c:9-17
+// The -isysroot is used as a hack to avoid LIT messing with the SDKROOT
+// environment variable which indirecty overrides the version in the target
+// triple used here.
+// RUN: %clang -### -target x86_64-apple-macosx10.11 -fdebug-default-version=5 
-g -S -o - %s -isysroot %t 2>&1 | FileCheck %s --check-prefix=DWARF5
+// RUN: %clang -### -target x86_64-apple-darwin14 -g -fdebug-default-version=4 
-S -o - %s -isysroot %t 2>&1 | FileCheck %s --check-prefix=DWARF4
+
+// RUN: %clang -### -target powerpc-unknown-openbsd -fdebug-default-version=4 
-g -S -o - %s 2>&1 | FileCheck %s --check-prefix=DWARF4
----------------
dblaikie wrote:
> I'd probably skip these tests since overriding the platform default is 
> already tested above (for the linux platform default) and I'm not sure 
> there's much value add by testing that this overrides each platform default 
> separately (given the platform default override is pretty orthogonal to which 
> platform - it'd be pretty hard to introduce a bug that would break for one 
> platform but not for all of them)
We may need -Werror in some or all of the tests.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69822/new/

https://reviews.llvm.org/D69822



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