DmitryPolukhin added inline comments.

================
Comment at: clang/unittests/Driver/ToolChainTest.cpp:371
+TEST(CompilerInvocation, SplitSwarfSingleCrash) {
+  static constexpr const char *Args[] = {"clang", "-gdwarf-4", 
"-gsplit-dwarf=single", "-c", "foo.cpp"};
+  CreateInvocationOptions CIOpts;
----------------
MaskRay wrote:
> DmitryPolukhin wrote:
> > MaskRay wrote:
> > > Without a concrete target triple, the default is used. If the default 
> > > target triple uses an object file format not supporting -gsplit-dwarf, 
> > > this will fail.
> > Oh, could you please advise how to select right target triple for the test 
> > or limit it to the case when triple I specify here is supported? I had 
> > issue in the past with triples and it was tricky to select something that 
> > makes all llvm bots happy. I added `-target arm-linux-gnueabi` and test 
> > seems to be working if only x86 arch is enabled.
> `-target ` has been deprecated since Clang 3.4. Use 
> `--target=arm-linux-gnueabi`.
> 
> If you just run the driver, you don't need a target in 
> `LLVM_TARGETS_TO_BUILD`.
> If you do code generation, `LLVM_TARGETS_TO_BUILD` is needed.
> This is tricky, you likely need two build directories to check this...
> 
> ```
> % /tmp/out/custom1/bin/clang --target=aarch64 -c a.cc
> error: unable to create target: 'No available targets are compatible with 
> triple "aarch64"'
> 1 error generated.
> ```
Yes, my driver test works fine regardless `LLVM_TARGETS_TO_BUILD`, also tested 
with `-###`
Will wait for build bots completion just in case and push tomorrow. Thank you 
for review and the detailed explanation.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D154602/new/

https://reviews.llvm.org/D154602

_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits

Reply via email to