https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82569
--- Comment #5 from seurer at gcc dot gnu.org --- Created attachment 42385 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42385&action=edit test case that shows the problem This is a cut down single function test case that shows the problem. I tried cutting out more but it changed how the code was generated too much to show the issue. Compile it with a powerpc compiler built with -mcpu=power6 or power6x ~/gcc/install/gcc-test2/bin/gcc -O3 -S -o bad.s bad.c And look for the srawi that shifts by 13. I changed it from 11 to make it easier to find because there are other shifts by 11. Then trace the result on its way to the function call. I see: 303: srawi 10,31,13 305: stw 10,29148(1) 325: ld 16,29144(1) 332: mr 27,16 545: mr 6,27 546: bl gl_write_texture_span
