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Re: [patch] fix regrename pass to ensure renamings produce valid insns
- From: Jeff Law <law at redhat dot com>
- To: Sandra Loosemore <sandra at codesourcery dot com>
- Cc: Eric Botcazou <ebotcazou at adacore dot com>, gcc-patches at gcc dot gnu dot org, Chung-Lin Tang <cltang at codesourcery dot com>, Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>, "Schmidt, Bernd - Code Sourcery" <bernds at codesourcery dot com>
- Date: Wed, 01 Jul 2015 11:03:13 -0600
- Subject: Re: [patch] fix regrename pass to ensure renamings produce valid insns
- Authentication-results: sourceware.org; auth=none
- References: <5581AA41 dot 7010201 at codesourcery dot com> <1919634 dot FPIRa5rfyH at polaris> <558A0130 dot 9010202 at codesourcery dot com> <558B7998 dot 80201 at redhat dot com> <5590624E dot 8090409 at codesourcery dot com>
On 06/28/2015 03:08 PM, Sandra Loosemore wrote:
Re the testcase, this fixed 16 FAILs on existing tests in the gcc
testsuite with the forthcoming nios2 load/store multiple instruction
support, all assembler errors due to the bad instructions being
generated. There's nothing I can do on nios2 for a testcase until I get
those patches committed (I'm still trying to re-test and tidy them up
for submission), plus I think the failures are rather fragile --
depending on the register allocator choosing an initial register
numbering that allows peephole optimizers to trigger, etc. But, I will
revisit this later and see what I can do.
OK. As long as there's going to be some tests, that works for me.
jeff