39 lines
1.7 KiB
Plaintext
39 lines
1.7 KiB
Plaintext
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# RUN: llvm-mc -disassemble -triple thumbv7 2>&1 | FileCheck %s
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# XFAIL: *
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#------------------------------------------------------------------------------
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# Undefined encodings for ldrexd/strexd
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#------------------------------------------------------------------------------
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# FIXME: "ldrexd r8, r8, [r2]"
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# Rt == Rt2 is UNPREDICTABLE
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[0xd2 0xe8 0x7f 0x88]
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# CHECK: potentially undefined instruction encoding
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# CHECK-NEXT: [0xd2 0xe8 0x7f 0x88]
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# Opcode=2127 Name=t2STREXB Format=ARM_FORMAT_THUMBFRM(25)
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# 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
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# -------------------------------------------------------------------------------------------------
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# | 1: 1: 1: 0| 1: 0: 0: 0| 1: 1: 0: 0| 0: 0: 1: 0| 1: 0: 0: 0| 1: 1: 1: 1| 0: 1: 0: 0| 0: 0: 1: 0|
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# -------------------------------------------------------------------------------------------------
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#
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# if d == n || d == t then UNPREDICTABLE
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[0xc2 0xe8 0x42 0x8f]
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# CHECK: potentially undefined instruction encoding
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# CHECK-NEXT: [0xc2 0xe8 0x42 0x8f]
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# Opcode=2128 Name=t2STREXD Format=ARM_FORMAT_THUMBFRM(25)
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# 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
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# -------------------------------------------------------------------------------------------------
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# | 1: 1: 1: 0| 1: 0: 0: 0| 1: 1: 0: 0| 0: 0: 1: 0| 0: 1: 1: 1| 1: 0: 0: 0| 0: 1: 1: 1| 1: 0: 0: 0|
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# -------------------------------------------------------------------------------------------------
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#
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# if d == n || d == t || d == t2 then UNPREDICTABLE
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# FIXME: should be unpredictable since it's "strexd r8, r7, r8, [r2]"
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[0xc2 0xe8 0x78 0x78]
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# CHECK: potentially undefined instruction encoding
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# CHECK-NEXT: [0xc2 0xe8 0x78 0x78]
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