https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68860
John David Anglin <danglin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |danglin at gcc dot gnu.org
Status|RESOLVED |REOPENED
Target|aarch64-*-*, ia64-*-*, |aarch64-*-*, ia64-*-*,
|x86_64-*-* |x86_64-*-*, hppa-*-*
Resolution|FIXED |---
--- Comment #35 from John David Anglin <danglin at gcc dot gnu.org> ---
Fails on 32-bit hppa for arguments that are optimized out:
Breakpoint 1, foo (arg1=1, arg2=2, arg3=3, arg4=4, arg5=<optimized out>,
arg6=<o
ptimized out>, arg7=<optimized out>, arg8=<optimized out>) at
/home/dave/gnu/gcc
/gcc/gcc/testsuite/gcc.dg/guality/pr68860-2.c:14
14 asm (NOP : "=m" (y) : "m" (y));
$1 = <optimized out>
$2 = 5
<optimized out> != 5
FAIL: gcc.dg/guality/pr68860-2.c -O1 -DPREVENT_OPTIMIZATION line 14 arg5 ==
5
On 32-bit hppa, the first four arguments are passed in registers and any
additional arguments are passed on the stack. I guess DW_OP_GNU_parameter_ref
is not being emitted for the stack arguments that are optimized away.
This is with master r17-2796-ga7ba10ac1e0 but I don't believe the fail is new.
