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Re: [PATCH] Add constant folding support for next{after,toward}{,f,l} (PR libstdc++/85466)
- From: Tom de Vries <Tom_deVries at mentor dot com>
- To: <gcc-patches at gcc dot gnu dot org>
- Cc: Jakub Jelinek <jakub at redhat dot com>, Richard Biener <rguenther at suse dot de>, Jeff Law <law at redhat dot com>
- Date: Mon, 7 May 2018 12:04:32 +0200
- Subject: Re: [PATCH] Add constant folding support for next{after,toward}{,f,l} (PR libstdc++/85466)
- References: <20180421173625.GN8577@tucnak>
On 04/21/2018 07:36 PM, Jakub Jelinek wrote:
* gcc.dg/nextafter-2.c: New test.
Hi,
FTR, I ran into a link error "unresolved symbol nexttowardf" using the
standalone nvptx toolchain:
...
PASS: gcc.dg/nextafter-1.c (test for excess errors)
PASS: gcc.dg/nextafter-1.c execution test
PASS: gcc.dg/nextafter-1.c scan-tree-dump-not optimized "nextafter"
PASS: gcc.dg/nextafter-1.c scan-tree-dump-not optimized "nexttoward"
FAIL: gcc.dg/nextafter-2.c (test for excess errors)
UNRESOLVED: gcc.dg/nextafter-2.c compilation failed to produce executable
PASS: gcc.dg/nextafter-3.c (test for excess errors)
PASS: gcc.dg/nextafter-3.c execution test
PASS: gcc.dg/nextafter-3.c scan-tree-dump-not optimized "nextafter"
PASS: gcc.dg/nextafter-3.c scan-tree-dump-not optimized "nexttoward"
PASS: gcc.dg/nextafter-4.c (test for excess errors)
PASS: gcc.dg/nextafter-4.c execution test
PASS: gcc.dg/nextafter-4.c scan-tree-dump-not optimized "nextafter"
PASS: gcc.dg/nextafter-4.c scan-tree-dump-not optimized "nexttoward"
...
This failure exposes a newlib bug. I've submitted a patch here (
https://sourceware.org/ml/newlib/2018/msg00350.html ).
Thanks,
- Tom