[X86] Disable nop padding before instruction following a prefix
authorShengchen Kan <shengchen.kan@intel.com>
Thu, 12 Mar 2020 09:13:09 +0000 (17:13 +0800)
committerShengchen Kan <shengchen.kan@intel.com>
Sat, 14 Mar 2020 05:15:30 +0000 (13:15 +0800)
commite6f1dd40bd013c7b9780625b19328296ff9fbb2e
treea781b597b509cf7bc702c40bb1dc4624cd7100c4
parentbf0cc6b328ca7fe8b938acb379eb56d7e74ad019
[X86] Disable nop padding before instruction following a prefix

Reviewers: reames, MaskRay, craig.topper, LuoYuanke, jyknight

Reviewed By: LuoYuanke

Subscribers: hiraditya, llvm-commits, annita.zhang

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D76052
llvm/lib/Target/X86/MCTargetDesc/X86AsmBackend.cpp
llvm/test/MC/X86/align-branch-64-prefix.s [new file with mode: 0644]