[PATCH] AAPCS complex value return [csl-arm-branch]

[Julian Brown]

Hi,

This patch alters the ABI for functions returning complex values to 
conform with the ARM AAPCS. Previously, multi-word complex values were 
returned in registers. With this patch they are treated the same as 
multi-word aggregates, i.e. they are returned in memory at an address 
passed in through r0.

ABIs other than AAPCS shouldn't be affected.

This should be applied to both csl-arm-branch and mainline.

Cheers,

Julian

-- 
Julian Brown
CodeSourcery, LLC
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