https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64111
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |NEW --- Comment #16 from H.J. Lu <hjl.tools at gmail dot com> --- The small testcase failed with GCC 4.8: Testing /export/project/git/gcc-regression/master/190324/usr/bin/gcc: rm -f *.o *.out g++ -march=core-avx2 -O3 -fvisibility=hidden -x c++-header -c "qt_pch.ii" -o pch.out g++ -c -include .pch/Qt5Core -march=core-avx2 -O3 -fvisibility=hidden -o "file.o" "file.ii" file.ii: In member function \u2018int A::m_fn1()\u2019: file.ii:10:5: error: conversion of register to a different size int A::m_fn1() { ^ VIEW_CONVERT_EXPR<vector(4) long long int>(vect_var_.23_79); vect_.27_83 = VIEW_CONVERT_EXPR<vector(4) long long int>(vect_var_.23_79); file.ii:10:5: error: conversion of register to a different size VIEW_CONVERT_EXPR<vector(4) long long int>(vect_var_.24_81); vect_.28_85 = VIEW_CONVERT_EXPR<vector(4) long long int>(vect_var_.24_81); file.ii:10:5: internal compiler error: verify_gimple failed Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make: *** [file.o] Error 1 Search ended: Fails from the first revision 190324. Can not make sure it is a regression from that version. [hjl@gnu-mic-2 gcc-regression]$ /export/project/git/gcc-regression/master/190324/usr/bin/gcc -v Using built-in specs. COLLECT_GCC=/export/project/git/gcc-regression/master/190324/usr/bin/gcc COLLECT_LTO_WRAPPER=/export/project/git/gcc-regression/master/190324/usr/libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../../../gcc/configure --prefix=/export/project/git/gcc-regression/master/190324/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld MAKEINFO=/usr/bin/false --enable-languages=c,c++,fortran --disable-bootstrap Thread model: posix gcc version 4.8.0 20120812 (experimental) [trunk revision 190324] (GCC) [hjl@gnu-mic-2 gcc-regression]$