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Re: SPARC, register renaming, __builtin_return_address
- To: Mark Mitchell <mark at codesourcery dot com>
- Subject: Re: SPARC, register renaming, __builtin_return_address
- From: Franz Sirl <Franz dot Sirl-kernel at lauterbach dot com>
- Date: Mon, 14 May 2001 11:17:41 +0200
- Cc: gcc at gcc dot gnu dot org
At 01:50 14.05.2001, Mark Mitchell wrote:
> - The manual explicitly documents __builtin_return_address
> being guaranteed to return the correct value only when
> the index is 0.
>
> Therefore, the test-case is semi-bogus.
Nope, cause if __builtin_return_address(n) with n>=1 doesn't work on a
target, it has to return 0 and then the comparisons in the testcase are valid.
Franz.