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7ef9328e08
Current code does not check that a register number is in the 0-31 range.
Sometimes the parser checks that later for some kinds of instructions,
but that leads to unclear / incorrect error messages like that:
% cat test.s
.text
lb $4, 8($32)
% llvm-mc test.s -triple=mips64-unknown-linux
test.s:2:10: error: expected memory with 16-bit signed offset
lb $4, 8($32)
^
Sometimes the parser just crashes:
% cat test.s
.text
lw $4, 8($32)
% llvm-mc test.s -triple=mips64-unknown-linux
This patch resolves the problem by checking that register number after
'$' sign is in the 0-31 range. If the number is out of the range the
parser shows the `invalid register number` error, but treats invalid
register number as a normal one to continue parsing and catch other
possible errors.
Differential Revision: https://reviews.llvm.org/D45919
llvm-svn: 330732
37 lines
2.5 KiB
ArmAsm
37 lines
2.5 KiB
ArmAsm
# Instructions that are invalid
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#
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# RUN: not llvm-mc %s -triple=mips64-unknown-linux -show-encoding -mcpu=mips32r2 \
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# RUN: -mattr=+eva 2>%t1
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# RUN: FileCheck %s < %t1
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.set noat
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cachee -1, 255($7) # CHECK: :[[@LINE]]:12: error: expected 5-bit unsigned immediate
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cachee 32, 255($7) # CHECK: :[[@LINE]]:12: error: expected 5-bit unsigned immediate
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prefe -1, 255($7) # CHECK: :[[@LINE]]:11: error: expected 5-bit unsigned immediate
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prefe 32, 255($7) # CHECK: :[[@LINE]]:11: error: expected 5-bit unsigned immediate
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lle $33, 8($5) # CHECK: :[[@LINE]]:9: error: invalid register number
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lle $4, 8($33) # CHECK: :[[@LINE]]:15: error: invalid register number
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lle $4, 512($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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lle $4, -513($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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lwe $33, 8($5) # CHECK: :[[@LINE]]:9: error: invalid register number
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lwe $4, 8($33) # CHECK: :[[@LINE]]:15: error: invalid register number
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lwe $4, 512($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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lwe $4, -513($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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sbe $33, 8($5) # CHECK: :[[@LINE]]:9: error: invalid register number
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sbe $4, 8($33) # CHECK: :[[@LINE]]:15: error: invalid register number
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sbe $4, 512($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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sbe $4, -513($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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sce $33, 8($5) # CHECK: :[[@LINE]]:9: error: invalid register number
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sce $4, 8($33) # CHECK: :[[@LINE]]:15: error: invalid register number
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sce $4, 512($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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sce $4, -513($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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she $33, 8($5) # CHECK: :[[@LINE]]:9: error: invalid register number
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she $4, 8($33) # CHECK: :[[@LINE]]:15: error: invalid register number
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she $4, 512($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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she $4, -513($5) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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swe $33, 8($4) # CHECK: :[[@LINE]]:9: error: invalid register number
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swe $5, 8($34) # CHECK: :[[@LINE]]:15: error: invalid register number
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swe $5, 512($4) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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swe $5, -513($4) # CHECK: :[[@LINE]]:13: error: expected memory with 9-bit signed offset
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