https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118786
Bug ID: 118786
Summary: more wrong code with -finline-small-functions
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 60414
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60414&action=edit
C source code
For recent gcc trunk:
foundBugs $ rm -f ./a.out && ../results/bin/gcc -w -O2
-fno-inline-small-functions bug1087.c && ./a.out
checksum = 262341BF
foundBugs $ rm -f ./a.out && ../results/bin/gcc -w -O2 bug1087.c && ./a.out
checksum = A2F823B2
foundBugs $
Seems ok at gcc 14.2:
foundBugs $ rm -f ./a.out && ../results.14.2.0/bin/gcc -w -O2
-fno-inline-small-functions bug1087.c && ./a.out
checksum = 262341BF
foundBugs $ rm -f ./a.out && ../results.14.2.0/bin/gcc -w -O2 bug1087.c &&
./a.out
checksum = 262341BF
foundBugs $
Seems bad about a month ago:
foundBugs $ rm -f ./a.out && ../results.20250108.asan.ubsan/bin/gcc -w -O2
-fno-inline-small-functions bug1087.c && ./a.out
checksum = 262341BF
foundBugs $ rm -f ./a.out && ../results.20250108.asan.ubsan/bin/gcc -w -O2
bug1087.c && ./a.out
checksum = A2F823B2
foundBugs $
I got this example from csmith.
