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Author SHA1 Message Date
Petr Hosek 7b27454477 [ADT] Normalize empty triple components 
LLVM triple normalization is handling "unknown" and empty components
differently; for example given "x86_64-unknown-linux-gnu" and
"x86_64-linux-gnu" which should be equivalent, triple normalization
returns "x86_64-unknown-linux-gnu" and "x86_64--linux-gnu". autoconf's
config.sub returns "x86_64-unknown-linux-gnu" for both
"x86_64-linux-gnu" and "x86_64-unknown-linux-gnu". This changes the
triple normalization to behave the same way, replacing empty triple
components with "unknown".

This addresses PR37129.

Differential Revision: https://reviews.llvm.org/D50219

llvm-svn: 339294
 2018-08-08 22:23:57 +00:00
Justin Lebar 63152d10c9 [CUDA] Don't pass -stack-protector to NVPTX compilations. 
We can't support stack-protector on NVPTX because NVPTX doesn't expose a
stack to the compiler!

Fixes PR32009.

llvm-svn: 295609
 2017-02-19 19:05:32 +00:00