Re: inline-asm/9181: [3.2.1/3.3/3.4 regression] ICE with inline assembly in instantiate_virtual_regs_1, at function.c:3974

Re: inline-asm/9181: [3.2.1/3.3/3.4 regression] ICE with inline assembly in instantiate_virtual_regs_1, at function.c:3974

[Steven Bosscher]

The following reply was made to PR inline-asm/9181; it has been noted by GNATS.

From: Steven Bosscher <s.bosscher@student.tudelft.nl>
To: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org,
	gcc-prs@gcc.gnu.org, mtaylor@fit.edu
Cc:  
Subject: Re: inline-asm/9181: [3.2.1/3.3/3.4 regression] ICE with inline assembly
 in instantiate_virtual_regs_1, at function.c:3974
Date: Mon, 24 Mar 2003 20:48:47 +0100

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9181
 
 The smaller test case:
 
 int
 get_lsb (long long bb)
 {
   int index;
   asm ("": "=%al" (index): "d" (&bb):"%ecx");
   return index;
 }
 
 now gives us:
 
 # gcc-3.3 -c 9181.c
 9181.c: In function `get_lsb':
 9181.c:5: error: impossible constraint in `asm'
 # gcc-3.3 -c 9181.c -O
 # gcc-3.3 -c 9181.c -O2
 
 So at optimize >  0, the whole thing is optimized away.
 At -O0, we used to ICE, that appears to be fixed now.
 Honza (again ;-), is this the expected behavior?
 
 Greetz
 Steven
 
 

Re: inline-asm/9181: [3.2.1/3.3/3.4 regression] ICE with inline assembly in instantiate_virtual_regs_1, at function.c:3974

[hubicka]

Synopsis: [3.2.1/3.3/3.4 regression] ICE with inline assembly in instantiate_virtual_regs_1, at function.c:3974

State-Changed-From-To: analyzed->closed
State-Changed-By: hubicka
State-Changed-When: Fri Apr 11 21:24:29 2003
State-Changed-Why:
    Yes, the error message is valid now. Still fails on 3.2 but I can backport the patch if needed.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9181