https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106413
Bug ID: 106413
Summary: State explosion on va_arg when va_start is in
top-level function of analysis
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: dmalcolm at gcc dot gnu.org
Target Milestone: ---
I accidentally introduced:
FAIL: gcc.dg/analyzer/stdarg-3.c (test for excess errors)
in r13-1786-gb852aa7f265424; the issue is a -Wanalyzer-too-complex warning.
Looks like there's a state explosion in -fanalyzer whenever there's a loop that
calls __builtin_va_arg for the case where the va_start is in the top-level
function of the analysis (i.e. that we *don't* have a specific list of variadic
arguments).
