https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86994
Bug ID: 86994
Summary: [9 regression] 64-bit gcc.target/i386/20040112-1.c
FAILs
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: ubizjak at gmail dot com
Target Milestone: ---
Target: i?86-*-*, x86-*-*
Between 20180816 (r263590) and 20180817 (r263613), gcc.target/i386/20040112-1.c
started to FAIL for 64-bit:
+FAIL: gcc.target/i386/20040112-1.c scan-assembler testb
Seen on i386-pc-solaris2.11 and x86_64-pc-linux-gnu.
Compared to the gcc-8 branch, the code changed from
- testb %al, %al
- jns .L2
+ cmpb $-1, %al
+ jg .L2
