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Author SHA1 Message Date
Fangrui Song 765eba38c8 [Driver] Fix style issues of --print-supported-cpus after D63105 
Reviewed By: ziangwan

Differential Revision: https://reviews.llvm.org/D63822

llvm-svn: 364704
 2019-06-29 01:24:36 +00:00
Ziang Wan de94ac9357 print-supported-cpus quality of life patch. 
Claim all input files so that clang does not give a warning. Add two
short-cut aliases: -mcpu=? and -mtune=?.

llvm-svn: 364362
 2019-06-25 23:57:14 +00:00
Ziang Wan 9a2e7784b1 Fixed the --print-supported-cpus test 
Add constraints for the test that require specific backend targets
to be registered.

Remove trailing whitespace in the doc.

Differential Revision: https://reviews.llvm.org/D63105

llvm-svn: 363475
 2019-06-14 23:34:40 +00:00
Ziang Wan af857b93df Add --print-supported-cpus flag for clang. 
This patch allows clang users to print out a list of supported CPU models using
clang [--target=<target triple>] --print-supported-cpus

Then, users can select the CPU model to compile to using
clang --target=<triple> -mcpu=<model> a.c

It is a handy feature to help cross compilation.

llvm-svn: 363464
 2019-06-14 21:42:21 +00:00