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- Subject: Re: Usage of -Os in 5.4 causing issues
- From: Ką Mykolas <kamicc@...>
- Date: Mon, 3 Aug 2020 17:50:19 +0200
Any issues relating compiler flags more.likely to be related to specific version or build of the compiler. There is not that much we can do to wipe out compiler bugs. Just reduce the testcase and report it.
On Mon, Aug 3, 2020, at 16:15, Roberto Ierusalimschy wrote:
> > I went to investigate and turns out it's 5.4's new usage of -Os to compile llex.c/lparser.c/lcode.c; setting CMCFLAGS to empty results in the output being as clean as it's ever been. This is on powerpc64le/Linux/gcc 9.3.
> I am sorry, but can you explain what it means "setting CMCFLAGS to empty
> results in the output being as clean as it's ever been"? (I could not
> even parse it.)
Compiling everything with -O2 (i.e. setting CMCFLAGS to nothing) results in the valgrind output being clean, same as with 5.3 and below.
> -- Roberto