https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93520
Bug ID: 93520
Summary: Compilation of Python 3.9 with gcc 10 and -fanalyzer
fails with internal compiler error
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: cstratak at redhat dot com
Target Milestone: ---
Created attachment 47746
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47746&action=edit
gcc 10 Python build log
With gcc 10 installed and compiling CPython from its source directory I get an
internal compiler error:
./configure && CFLAGS=-fanalyzer make
Snippet of error:
gcc -pthread -c -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall
-fanalyzer -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter
-Wno-missing-field-initializers -Werror=implicit-function-declaration
-fvisibility=hidden -I./Include/internal -I. -I./Include -DPy_BUILD_CORE
-o Objects/floatobject.o Objects/floatobject.c
during IPA pass: analyzer
Objects/floatobject.c: In function ‘_PyFloat_Pack2’:
Objects/floatobject.c:2061:13: internal compiler error: in add_constraint, at
analyzer/constraint-manager.cc:674
2061 | else if (Py_IS_NAN(x)) {
| ^
Full log attached.
