[Bug target/33671] incorrect vector codegen on PPU at O3 level optimization

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2007-10-05 21:46 -------
[EMAIL PROTECTED] ~]$ gcc -O3 t1212.c -maltivec
[EMAIL PROTECTED] ~]$ ./a.out
1.000000 1.000000 1.000000 1.000000
0.000000 0.000000 0.000000 0.000000
[EMAIL PROTECTED] ~]$ gcc -O3 t1212.c -maltivec -mabi=altivec
[EMAIL PROTECTED] ~]$ ./a.out
1.000000 1.000000 1.000000 1.000000
1.000000 1.000000 1.000000 1.000000


Same thing happens on the trunk:
[EMAIL PROTECTED] ~]$ ~/gcc-mainline/bin/gcc -O3 t1212.c -maltivec
-mabi=altivec
!./[EMAIL PROTECTED] ~]$ !./
./a.out
1.000000 1.000000 1.000000 1.000000
1.000000 1.000000 1.000000 1.000000
[EMAIL PROTECTED] ~]$ ~/gcc-mainline/bin/gcc -O3 t1212.c -maltivec
[EMAIL PROTECTED] ~]$ !./
./a.out
1.000000 1.000000 1.000000 1.000000
0.000000 0.000000 0.000000 0.000000


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33671