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From: bangerth@dealii.org To: anonymous@sources.redhat.com, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org Subject: Re: c++/8803: [3.2/3.3 regression] Internal compiler error in instantiate_virtual_regs_1, at function.c:3974 Date: Wed, 04 Dec 2002 13:47:00 -0000 [thread overview] Message-ID: <20021204214754.16087.qmail@sources.redhat.com> (raw) Old Synopsis: Internal compiler error in instantiate_virtual_regs_1, at function.c:3974 New Synopsis: [3.2/3.3 regression] Internal compiler error in instantiate_virtual_regs_1, at function.c:3974 State-Changed-From-To: open->analyzed State-Changed-By: bangerth State-Changed-When: Wed Dec 4 13:47:53 2002 State-Changed-Why: Confirmed. A simpler testcase is ------------------------------------ void f (unsigned char * u) { char U1U2U3U4 [8]; asm ("pxor %[U], %[U]\n\t" "punpacklbw %[u], %[U]\n\t" : [U] "=y" (*U1U2U3U4) : [u] "m" (*u)); } -------------------------- on which I get (with 3.2.2pre and 3.3pre) tmp/g> /home/bangerth/bin/gcc-3.0.4/bin/gcc -c test.cc test.cc: In function `void f(unsigned char*)': test.cc:5: parse error before `[' token tmp/g> /home/bangerth/bin/gcc-3.2/bin/gcc -c test.cc test.cc: In function `void f(unsigned char*)': test.cc:7: Internal compiler error in instantiate_virtual_regs_1, at function.c :3972 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions. The code did not compile with 3.0.4, since apparently some syntax about [U] in the asm statement is not understood. Nevertheless, that it now ICEs is a regression, so I mark it as that. http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8803
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