From: Andreas Schwab <schwab@suse.de>
To: Richard Biener <rguenther@suse.de>
Cc: gcc-patches@gcc.gnu.org
Subject: Re: [PATCH][2/2] Make SCCVN use conditional equivalences
Date: Thu, 13 Aug 2015 10:56:00 -0000 [thread overview]
Message-ID: <mvma8tviiwh.fsf@hawking.suse.de> (raw)
In-Reply-To: <alpine.LSU.2.11.1508131115120.19998@zhemvz.fhfr.qr> (Richard Biener's message of "Thu, 13 Aug 2015 11:15:48 +0200 (CEST)")
Richard Biener <rguenther@suse.de> writes:
> On Thu, 13 Aug 2015, Andreas Schwab wrote:
>
>> On m68k:
>>
>> FAIL: gcc.dg/tree-ssa/vrp33.c scan-tree-dump vrp1 "Folding predicate.*== 1 to 0"
>>
>> $ gcc/xgcc -B gcc/ ../gcc/testsuite/gcc.dg/tree-ssa/vrp33.c -O2 -fdump-tree-vrp1 -S
>> $ grep -c Folding *.vrp1
>> 0
>
> I suppose for logical-op-non-short-circuit you need -fno-tree-fre for
> that testcase now (which shouldn't harm for other targets).
Yes, that works, and didn't change anything on ia64 or arm64.
Andreas.
* gcc.dg/tree-ssa/vrp33.c: Add -fno-tree-fre.
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp33.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp33.c
index 8c8879b..75fefa4 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/vrp33.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp33.c
@@ -1,5 +1,5 @@
/* { dg-do compile } */
-/* { dg-options "-O2 -fdump-tree-vrp1" } */
+/* { dg-options "-O2 -fdump-tree-vrp1 -fno-tree-fre" } */
/* This is from PR14052. */
--
2.5.0
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
next prev parent reply other threads:[~2015-08-13 10:26 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-12 9:15 Richard Biener
2015-08-12 14:23 ` Richard Biener
2015-08-13 9:15 ` Andreas Schwab
2015-08-13 9:25 ` Richard Biener
2015-08-13 10:56 ` Andreas Schwab [this message]
2015-08-13 9:55 ` Andreas Schwab
2015-08-13 10:00 ` Richard Biener
2015-08-24 12:50 ` Rainer Orth
2015-08-24 12:54 ` Andreas Schwab
2015-08-16 19:02 ` H.J. Lu
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