Re: optimization/10876: [3.3/3.4 regression] [Sparc] internal compiler error on FP code

Re: optimization/10876: [3.3/3.4 regression] [Sparc] internal compiler error on FP code

[ebotcazou]

Old Synopsis: [sparc] internal compiler error
New Synopsis: [3.3/3.4 regression] [Sparc] internal compiler error on FP code

State-Changed-From-To: open->analyzed
State-Changed-By: ebotcazou
State-Changed-When: Tue May 20 07:16:57 2003
State-Changed-Why:
    Confirmed on mainline and 3.3 branch.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10876

Re: optimization/10876: [3.3/3.4 regression] [Sparc] internal compiler error on FP code

[Christian Ehrhardt]

The following reply was made to PR optimization/10876; it has been noted by GNATS.

From: "Christian Ehrhardt" <ehrhardt@mathematik.uni-ulm.de>
To: gcc-prs@gcc.gnu.org, aaronw@attbi.com, gcc-bugs@gcc.gnu.org,
  gcc-gnats@gcc.gnu.org, nobody@gcc.gnu.org
Cc:  
Subject: Re: optimization/10876: [3.3/3.4 regression] [Sparc] internal compiler error on FP code
Date: Tue, 20 May 2003 10:39:55 +0200

 Redux: Compile with -O2
 
 ------------ cut --------------------------------------
 void f(void)
 {
 	unsigned int butterfly, block, offset;
 	double *Z;
 	for (block = 0; block < 512; block += 512) {
 		double T1re, T2re;
 		offset = butterfly + block;
 		T1re += T2re;
 		T2re = Z[offset] + T1re;
 	}
 }
 ------------ cut --------------------------------------
 
 This ICEs 3.3 and 3.4 as of 20030519. The ICE is a segfault in
 calculate_giv_inc at unroll.c:1588.
 
 -- 
 THAT'S ALL FOLKS!

Re: optimization/10876: [3.3/3.4 regression] [Sparc] internal compiler error on FP code

[ebotcazou]

Synopsis: [3.3/3.4 regression] [Sparc] internal compiler error on FP code

Responsible-Changed-From-To: unassigned->ebotcazou
Responsible-Changed-By: ebotcazou
Responsible-Changed-When: Tue May 20 08:09:19 2003
Responsible-Changed-Why:
    Investigating.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10876

Re: optimization/10876: [3.3/3.4 regression] [Sparc] internal compiler error on FP code

[Aaron Williams]

The following reply was made to PR optimization/10876; it has been noted by GNATS.

From: Aaron Williams <aaronw@attbi.com>
To: gcc-prs@gcc.gnu.org, aaronw@attbi.com, gcc-bugs@gcc.gnu.org,
	gcc-gnats@gcc.gnu.org, nobody@gcc.gnu.org
Cc:  
Subject: Re: optimization/10876: [3.3/3.4 regression] [Sparc] internal compiler
 error on FP code
Date: Tue, 20 May 2003 01:00:24 -0700

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10876
 
 I found that the file I included compiles fine with -O3 or greater.  I 
 have the non-stripped version of the file which also crashes gcc with 
 -O3.  In addition, if I enable all of the loop optimization support the 
 compiler aborts.  I will provide more details tomorrow.
 
 -Aaron