* constraining index register
@ 2021-10-14 13:24 Paul Edwards
0 siblings, 0 replies; only message in thread
From: Paul Edwards @ 2021-10-14 13:24 UTC (permalink / raw)
To: gcc
Hi.
In certain places, the i370 target of GCC 3.2.3 will use a
base + index + displacement operand.
How can I add a constraint to say that the index must be
between 0 and 0x7fffffff?
I want to stop 0xffffffff from being generated when I have:
char *p
p[-1];
Thanks. Paul.
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2021-10-14 13:24 constraining index register Paul Edwards
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