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Fix a bug in the MC asm parser evaluating expressions. It was treating:
A = 9 B = 3 * A - 2 * A + 1 as B = 3 * A - (2 * A + 1) rdar://13816516 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181366 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -1092,7 +1092,7 @@ bool AsmParser::ParseBinOpRHS(unsigned Precedence, const MCExpr *&Res,
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MCBinaryExpr::Opcode Dummy;
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MCBinaryExpr::Opcode Dummy;
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unsigned NextTokPrec = getBinOpPrecedence(Lexer.getKind(), Dummy);
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unsigned NextTokPrec = getBinOpPrecedence(Lexer.getKind(), Dummy);
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if (TokPrec < NextTokPrec) {
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if (TokPrec < NextTokPrec) {
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if (ParseBinOpRHS(Precedence+1, RHS, EndLoc)) return true;
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if (ParseBinOpRHS(TokPrec+1, RHS, EndLoc)) return true;
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}
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}
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// Merge LHS and RHS according to operator.
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// Merge LHS and RHS according to operator.
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@ -45,6 +45,7 @@ k:
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check_expr 0 || 0, 0
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check_expr 0 || 0, 0
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check_expr 1 + 2 < 3 + 4, 1
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check_expr 1 + 2 < 3 + 4, 1
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check_expr 1 << 8 - 1, 128
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check_expr 1 << 8 - 1, 128
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check_expr 3 * 9 - 2 * 9 + 1, 10
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.set c, 10
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.set c, 10
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check_expr c + 1, 11
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check_expr c + 1, 11
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