https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93402
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
Target Milestone|--- |8.4
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Seems to have started with r186861 aka
r0-116443-gb5068425b9d7ab59694014bc78d4a29e04e44918.
Slightly adjusted testcase:
struct S { unsigned int a; unsigned long long b; };
__attribute__((noinline)) struct S
foo (unsigned long long x)
{
struct S ret;
ret.a = 0;
ret.b = x * 11111111111ULL + 111111111111ULL;
return ret;
}
int
main ()
{
struct S a = foo (1);
if (a.b != 122222222222ULL)
__builtin_abort ();
return 0;
}
The difference between per-r186861 and r186861 (== trunk) is:
@@ -10,7 +10,6 @@ foo:
movabsq $111111111111, %rdx
imulq %rax, %rdi
xorl %eax, %eax
- addq %rdi, %rdx
ret
.cfi_endproc
.LFE0:
