https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88309
Kewen Lin <linkw at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |linkw at gcc dot gnu.org --- Comment #4 from Kewen Lin <linkw at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #3) > Found it: > /* In GIMPLE the type of the MEM_REF specifies the alignment. The > required alignment (power) is 4 bytes regardless of data type. */ > tree align_ltype = build_aligned_type (lhs_type, 4); > > That should be 4*8 instead of just 4. > > There are 2 build_aligned_type in rs6000-builtins.cc which uses the wrong > alignment; thinking it was the alignment argument was bytes rather than bits. > > Introduced by r9-2375-g3f7a77cd20d07c which means this is a regression. Hi Andrew, thanks for digging into this! William has not worked on GCC project any more, will you make a patch for this?