Re: [PATCH v1 0/1] testsuite: add -mpure-code for cortex-m to reg_equal_test.c test

[Richard Earnshaw via Sourceware Forge]

Note that if we require cortex-a53 we can then remove the skip-if rule, making 
the test more widely applicable.  So there are additional advantages to this 
approach.

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https://forge.sourceware.org/gcc/gcc/pulls/198#issuecomment-6836