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Re: optimization/7675: [3.2/3.3 regression] ICE in fixup_var_refs_1
- From: Janis Johnson <janis187 at us dot ibm dot com>
- To: gcc-gnats at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org, sowhat at amnis dot co dot jp, ebotcazou at gcc dot gnu dot org
- Date: Tue, 24 Dec 2002 12:24:53 -0800
- Subject: Re: optimization/7675: [3.2/3.3 regression] ICE in fixup_var_refs_1
- Organization: IBM
- Reply-to: janis187 at us dot ibm dot com
The regression reported in PR optimization/7675 showed up
starting with this patch:
2000-11-11 Jason Merrill <jason@redhat.com>
* function.c (assign_parms): If TREE_ADDRESSABLE is set, try to
give the parm a register and then call put_var_into_stack.
* stmt.c (expand_decl): Likewise.
cp/
* typeck.c (mark_addressable): Don't call put_var_into_stack.
Here's a small test case that causes the compiler to ICE
when compiled on i686-linux with -O:
-------------------
/* ICE when compiled with -O */
int dummy (int *);
void foo(int i, int j)
{
int k=j;
void bar() { int x=k, y=i, z=j; }
dummy(&j);
}
-------------------
Output from the mainline compiler:
7675.c: In function `foo':
7675.c:9: internal compiler error: in fixup_var_refs_1, at
function.c:1900
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
Eric, I just noticed that you're working on a patch. Perhaps
this information will be useful for you.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7675