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[committed] fix -mpreferred-stack-boundary for darwin

So, with the change to specify STACK_BOUNDARY to 128, bits of gcc get grumpy if we set the preferred stack boundary to less than that. Since a value less than 128 doesn't really make sense and erroring out (or warning) is less than friendly for no reason here I'm just making it a minimum. It also fixes a few testcases.

Committed to mainline after testing on x86-darwin.

-eric

2007-06-13 Eric Christopher <echristo@apple.com>

	* config/i386/darwin.h (PREFERRED_STACK_BOUNDARY): Don't let
	the user set a value below STACK_BOUNDARY.

Attachment: darwin.h.diff.txt
Description: Text document


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