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Re: [Tinycc-devel] PATCH: In gen_vla_sp_restore, use X30 rather than get
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From: |
Daniel Glöckner |
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Subject: |
Re: [Tinycc-devel] PATCH: In gen_vla_sp_restore, use X30 rather than get_reg. |
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Date: |
Mon, 10 Oct 2016 10:19:24 +0200 |
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User-agent: |
Mutt/1.5.20 (2009-06-14) |
On Sun, Oct 09, 2016 at 11:51:11PM +0100, Edmund Grimley Evans wrote:
> - uint32_t r = intr(get_reg(RC_INT));
> + // Use x30 because this function can be called when there
> + // is a live return value in x0 but there is nothing on
> + // the value stack to prevent get_reg from returning x0.
> + uint32_t r = 30;
Wait, can this happen on ARM32 as well? Why is x0 still in use?
Best regards,
Daniel