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Re: [PATCH] Fix gcc.dg/tree-ssa/scev-[345].c testcases
On Mon, 16 Jan 2017, Christophe Lyon wrote:
> On 13 January 2017 at 12:16, Bin.Cheng <amker.cheng@gmail.com> wrote:
> > On Fri, Jan 13, 2017 at 9:46 AM, Richard Biener <rguenther@suse.de> wrote:
> >>
> >> The following is an attempt to change those testcases to be less dependent
> >> on previous passes. The original motivation of the testcases seems to be
> >> testing SCEV capabilities and in turn IVOPTs decisions, thus the testcases
> >> are changed to check the IVO dump, use the GIMPLE FE feeding the loop
> >> pipeline directly and skip lowering/store-motion we meanwhile do to
> >> the testcase.
> >>
> >> To avoid some existing issue with CFG construction after GIMPLE parsing
> >> we need to be able to add GIMPLE_NOPs which the patch enables to generate
> >> from empty stmts (previously those resulted in parse errors).
> >>
> >> Tested the testcases on x86_64 with {,-m32} sofar I'll appreciate
> >> testing on more targets.
> > I checked aarch64-elf/aarch64-linux with default configuration, all
> > passed with this change.
> >
>
> For me, the testcases don't compile with this patch:
> gcc.dg/tree-ssa/scev-3.c: In function 'f':
> gcc.dg/tree-ssa/scev-3.c:30:3: error: '__MEM' undeclared (first use in
> this function)
> gcc.dg/tree-ssa/scev-3.c:30:3: note: each undeclared identifier is
> reported only once for each function it appears in
> gcc.dg/tree-ssa/scev-3.c:30:9: error: expected '=' before '<' token
>
> Did I misapply the patch?
You need
2017-01-12 Richard Biener <rguenther@suse.de>
* gimple-parser.c (c_parser_gimple_postfix_expression): Parse
__MEM.
in c/ChangeLog for it to work.
Richard.
> > Thanks,
> > bin
> >>
> >> Full bootstrap / regtest running on x86_64-unknown-linux-gnu.
> >>
> >> Richard.
> >>
> >
> >> - }
> >> }
> >>
> >> -/* { dg-final { scan-tree-dump-times "&a" 1 "optimized" } } */
> >> +/* { dg-final { scan-tree-dump-times "&a" 1 "ivopts" } } */
>
>
--
Richard Biener <rguenther@suse.de>
SUSE LINUX GmbH, GF: Felix Imendoerffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nuernberg)