Command to reproduce the issue: echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d avx.o | grep vmovaps
The expected output is that the objdump output matches the vmovaps instruction input. When using binutils with the bug, the initial 0x40 will be incorrect. >From an Ubuntu 20.04 system: $ echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d avx.o | grep vmovaps 0: 62 f1 7c 48 28 04 05 vmovaps 0x40(,%rax,1),%zmm0 On an Ubuntu 18.04 system: $ echo "vmovaps 0x40(,%rax,1),%zmm0" | as --64 -o avx.o && objdump -d avx.o | grep vmovaps 0: 62 f1 7c 48 28 04 05 vmovaps 0x1(,%rax,1),%zmm0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883880 Title: fix non-8-bit x86 displacements breaking AVX512 builds on Bionic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/binutils/+bug/1883880/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
