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1a18abc9a8
This adds the CSDB instruction, which is a new barrier instruction described by the whitepaper at [1]. This is in encoding space which was previously executed as a NOP, so it is available for all targets that have the relevant NOP encoding space. This matches the binutils behaviour for these instructions [2][3]. [1] https://developer.arm.com/support/security-update [2] https://sourceware.org/ml/binutils/2018-01/msg00116.html [3] https://sourceware.org/ml/binutils/2018-01/msg00120.html llvm-svn: 324324
5 lines
142 B
ArmAsm
5 lines
142 B
ArmAsm
// RUN: llvm-mc -triple aarch64-none-linux-gnu -show-encoding < %s | FileCheck %s
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csdb
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// CHECK: csdb // encoding: [0x9f,0x22,0x03,0xd5]
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