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SB (Speculative Barrier) is only mandatory from 8.5 onwards but is optional from Armv8.0-A. This patch adds a command line option to enable SB, as it was previously only possible to enable by selecting -march=armv8.5-a. This patch also renames FeatureSpecRestrict to FeatureSB. Reviewed By: olista01, LukeCheeseman Differential Revision: https://reviews.llvm.org/D55990 llvm-svn: 350299
6 lines
137 B
ArmAsm
6 lines
137 B
ArmAsm
// RUN: not llvm-mc -triple armv8 -show-encoding -mattr=+sb < %s 2>&1 | FileCheck %s
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sbeq
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// CHECK: instruction 'sb' is not predicable
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