https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71240
Bug ID: 71240
Summary: ICE on valid code at -O2 and above on
x86_64-linux-gnu: verify_gimple failed
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: rogero at howzatt dot demon.co.uk
Target Milestone: ---
Created attachment 38545
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38545&action=edit
Example code, fails with -O2
With gcc-trunk 236575 (which includes fixes for both these possibly related
PRs:
Bug 70641 - [5 Regression] ICE on valid code at -O1 and above on
x86_64-linux-gnu: verify_gimple failed
Bug 71079 - ICE on valid code at -O1 and above on x86_64-linux-gnu:
verify_gimple failed),
I am still getting an ICE for the attached code.
$ g++ -O2 verify_gimple.cxx
verify_gimple.cxx: In function 'void failure(double)':
verify_gimple.cxx:19:1: error: invalid types in nop conversion
failure(double a)
^~~~~~~
unsigned int
double
bswapsrc_7 = (unsigned int) a_2(D);
verify_gimple.cxx:19:1: internal compiler error: verify_gimple failed
0xdc6d66 verify_gimple_in_cfg(function*, bool)
../../gcc/tree-cfg.c:5213
0xcbbbc3 execute_function_todo
../../gcc/passes.c:1964
0xcbc54b execute_todo
../../gcc/passes.c:2016
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$ g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/home/rorr/git/buildkit2/build/gcc/bin/../libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure --prefix=/home/rorr/git/buildkit2/build/install
--enable-cloog-backend --enable-lto --enable-languages=c,c++
--enable-libstdcxx-time --enable-gold --enable-plugins --disable-multilib
--enable-werror=no --enable-libstdcxx-dual-abi
--with-default-libstdcxx-abi=gcc4-compatible
Thread model: posix
gcc version 7.0.0 20160523 (experimental) (GCC)
