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Date: Fri, 10 Jul 2009 11:05:00 -0000
Subject: [Bug c/40711]  New: verify_ssa failed with -O2
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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
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I just tried to compile the Linux kernel 2.6.30.1
with the gcc compiler version 4.5 snapshot 20090709.
The compiler said

drivers/net/ixgbe/ixgbe_main.c:5081:1: error: definition in block 50 does not
dominate use in block 51
for SSA_NAME: .MEM_541 in statement:
.MEM_482 = PHI <.MEM_480(40), .MEM_541(51)>
PHI argument
.MEM_541
for PHI node
.MEM_482 = PHI <.MEM_480(40), .MEM_541(51)>
drivers/net/ixgbe/ixgbe_main.c:5081:1: internal compiler error: verify_ssa
failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

Preprocessed gzipped source attached. Flag -O2 required.


-- 
           Summary: verify_ssa failed with -O2
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dcb314 at hotmail dot com
  GCC host triplet: x86_64-suse-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40711