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https://github.com/c64scene-ar/llvm-6502.git
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09e28e39f0
This patch implements a few changes related to the Thumb2 M-class MSR instruction: * better handling of unpredictable encodings, * recognition of the _g and _nzcvqg variants by the asm parser only if the DSP extension is available, preferred output of MSR APSR moves with the _<bits> suffix for v7-M. Patch by Petr Pavlu. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216874 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
1.3 KiB
Plaintext
36 lines
1.3 KiB
Plaintext
# RUN: not llvm-mc -disassemble %s -triple=thumbv7em 2>&1 | FileCheck --check-prefix=CHECK %s
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# RUN: not llvm-mc -disassemble %s -triple=thumbv7m 2>&1 | FileCheck --check-prefix=CHECK --check-prefix=CHECK-V7M %s
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#------------------------------------------------------------------------------
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# Undefined encodings for mrs
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#------------------------------------------------------------------------------
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# invalid SYSm
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# CHECK: warning: invalid instruction encoding
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# CHECK-NEXT: [0xef 0xf3 0x80 0x80]
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[0xef 0xf3 0x80 0x80]
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#------------------------------------------------------------------------------
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# Undefined encodings for msr
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#------------------------------------------------------------------------------
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# invalid mask = '00'
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# CHECK: warning: potentially undefined instruction encoding
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# CHECK-NEXT: [0x80 0xf3 0x00 0x80]
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[0x80 0xf3 0x00 0x80]
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# invalid mask = '11' with SYSm not in {0..3}
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# CHECK: warning: potentially undefined instruction encoding
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# CHECK-NEXT: [0x80 0xf3 0x05 0x8c]
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[0x80 0xf3 0x05 0x8c]
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# invalid mask = '01' (ThumbV7M does not have the DSP extension)
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# CHECK-V7M: warning: potentially undefined instruction encoding
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# CHECK-V7M-NEXT: [0x80 0xf3 0x00 0x84]
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[0x80 0xf3 0x00 0x84]
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# invalid SYSm
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# CHECK: warning: invalid instruction encoding
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# CHECK-NEXT: [0x80 0xf3 0x80 0x88]
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[0x80 0xf3 0x80 0x88]
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