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MC/X86: Chris pointed that 'as' isn't consistent in accepting the long form of
instructions which have no direct register usage. Darwin 'as' accepts: add $0, (%rax) but rejects mov $0, (%rax) for example. Given that, only accept suffix matches which match exactly one form. We still need to emit nice diagnostics for failures... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103015 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -683,11 +683,6 @@ X86ATTAsmParser::MatchInstruction(const SmallVectorImpl<MCParsedAsmOperand*>
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if (MatchB + MatchW + MatchL == 2)
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return false;
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// Similarly, if all three matched then we assume this is a generic operation
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// involving memory, and take the 'l' form (to match 'gas').
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if (MatchB + MatchW + MatchL == 0)
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return false;
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// Otherwise, the match failed.
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return true;
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}
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@ -4,5 +4,3 @@
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add $0, %eax
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// CHECK: addb $255, %al
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add $0xFF, %al
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// CHECK: addl $0, (%rax)
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add $0, 0(%rax)
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