https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68961
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #4)
> Confirmed on powerpc64le:
>
> $ /build/gcc-trunk/gcc/xgcc -B /build/gcc-trunk/gcc -O3 -S -Wall -Wextra
> -Wpedantic -mcpu=power8 -o/dev/stdout
> /src/gcc/trunk/gcc/testsuite/gcc.target/powerpc/pr60203.c
> .file "pr60203.c"
> .machine power8
> .abiversion 2
> .section ".toc","aw"
> .section ".text"
> .align 2
> .p2align 4,,15
> .globl pack
> .type pack, @function
> pack:
> xxpermdi 0,2,1,0
> addi 9,1,-16
> xxpermdi 0,0,0,2
> stxvd2x 0,0,9
> lfd 1,-16(1)
> lfd 2,-8(1)
> blr
> .long 0
> .byte 0,0,0,0,0,0,0,0
> .size pack,.-pack
> .align 2
> .p2align 4,,15
> .globl unpack_0
> .type unpack_0, @function
> unpack_0:
> blr
> .long 0
> .byte 0,0,0,0,0,0,0,0
> .size unpack_0,.-unpack_0
> .align 2
> .p2align 4,,15
> .globl unpack_1
> .type unpack_1, @function
> unpack_1:
> fmr 1,2
> blr
> .long 0
> .byte 0,0,0,0,0,0,0,0
> .size unpack_1,.-unpack_1
> .ident "GCC: (GNU) 6.0.0 20160113 (experimental)"
> .section .note.GNU-stack,"",@progbits
Can you properly bisect it then? Still can't reproduce with a cross from
x86_64.
Does on native .0341.fre properly contain just
pack (double a, double aa)
{
double u$d$0;
union u_ld u;
<bb 2>:
u.d[1] = aa_4(D);
u ={v} {CLOBBER};
return a_2(D);
}
or do we have some odd host dependency in early opts until here?
