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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
7 lines
242 B
ArmAsm
7 lines
242 B
ArmAsm
// RUN: not llvm-mc -triple armv8a-none-eabi %s 2>&1 | FileCheck %s
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// RUN: not llvm-mc -triple thumbv8a-none-eabi %s 2>&1 | FileCheck %s
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it eq
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csdbeq
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// CHECK: error: instruction 'csdb' is not predicable, but condition code specified
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