[AArch64][AsmParser] Add support for parsing shift/extend operands with symbols.
Differential Revision: https://reviews.llvm.org/D27953 llvm-svn: 290609
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@ -2406,17 +2406,19 @@ AArch64AsmParser::tryParseOptionalShiftExtend(OperandVector &Operands) {
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return MatchOperand_ParseFail;
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}
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// "extend" type operatoins don't need an immediate, #0 is implicit.
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// "extend" type operations don't need an immediate, #0 is implicit.
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SMLoc E = SMLoc::getFromPointer(getLoc().getPointer() - 1);
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Operands.push_back(
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AArch64Operand::CreateShiftExtend(ShOp, 0, false, S, E, getContext()));
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return MatchOperand_Success;
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}
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// Make sure we do actually have a number or a parenthesized expression.
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// Make sure we do actually have a number, identifier or a parenthesized
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// expression.
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SMLoc E = Parser.getTok().getLoc();
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if (!Parser.getTok().is(AsmToken::Integer) &&
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!Parser.getTok().is(AsmToken::LParen)) {
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!Parser.getTok().is(AsmToken::LParen) &&
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!Parser.getTok().is(AsmToken::Identifier)) {
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Error(E, "expected integer shift amount");
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return MatchOperand_ParseFail;
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}
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@ -0,0 +1,42 @@
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// RUN: not llvm-mc -triple aarch64-none-linux-gnu < %s 1> %t1 2> %t2
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// RUN: FileCheck < %t1 %s
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// RUN: FileCheck --check-prefix=CHECK-ERROR < %t2 %s
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.globl _func
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_func:
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// CHECK-LABEL: _func
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.set IMM2, 2
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.equ IMM4, 4
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// Make sure we can use a symbol with the optionally shift left operand.
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add w1, w2, w3, uxtb #IMM2
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add w4, w5, w6, uxth #IMM4
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add x7, x8, x9, lsl #IMM2
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add w7, w8, w9, uxtw #IMM4
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add x1, x2, x3, uxtx #IMM4
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// CHECK: add w1, w2, w3, uxtb #2
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// CHECK: add w4, w5, w6, uxth #4
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// CHECK: add x7, x8, x9, lsl #2
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// CHECK: add w7, w8, w9, uxtw #4
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// CHECK: add x1, x2, x3, uxtx #4
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add w1, w2, w3, sxtb #IMM2
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add w4, w5, w6, sxth #IMM4
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add x7, x8, x9, lsl #IMM2
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add w7, w8, w9, sxtw #IMM2
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add x1, x2, x3, sxtx #IMM4
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// CHECK: add w1, w2, w3, sxtb #2
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// CHECK: add w4, w5, w6, sxth #4
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// CHECK: add x7, x8, x9, lsl #2
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// CHECK: add w7, w8, w9, sxtw #2
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// CHECK: add x1, x2, x3, sxtx #4
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add w1, w2, w3, lsl #IMM3
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// CHECK-ERROR: error: expected constant '#imm' after shift specifier
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// CHECK-ERROR: add w1, w2, w3, lsl #IMM3
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// CHECK-ERROR: ^
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