RFR: 8075443: AARCH64: Missed L2I optimizations in C2
adinn at redhat.com
Wed Mar 18 15:28:13 UTC 2015
On 18/03/15 14:54, Andrew Haley wrote:
> We use iRegIOrL2I erratically in aarch64.ad. We can use it whenever
> we have a 32-bit input operand, and doing so improves code quality in
> many cases. We should use iRegIOrL2I instead of iRegI whenever it can
> be used as an input operand and the patterns allow us to do so.
> I also took the opportunity to do a little technical debt reduction.
> In a few places we were doing int-mode operations in 64-bit-wide
> instructions. This doesn't really matter, but it's a lot easier to
> reason about code generation if you have a rule that instructions must
> always use the correct mode.
> . . .
The patch looks good.
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