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bpf: proper print imm64 expression in inst printer

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Fixed an issue in printImm64Operand where if the value is
an expression, print out the expression properly. Currently,
it will print
  r1 = <MCOperand Expr:(tx_port)>ll
With the patch, the printout will be
  r1 = tx_port

Suggested-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312833 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Yonghong Song
2017-09-08 23:32:38 +00:00
parent 19969b8b8f
commit f5858045aa
2 changed files with 4 additions and 2 deletions
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2
lib/Target/BPF/BPFInstrInfo.td
View File

@@ -249,7 +249,7 @@ class MOV_RI<string OpcodeStr>
class LD_IMM64<bits<4> Pseudo, string OpcodeStr>
: InstBPF<(outs GPR:$dst), (ins u64imm:$imm),
"$dst "#OpcodeStr#" ${imm}ll",
"$dst "#OpcodeStr#" ${imm}",
[(set GPR:$dst, (i64 imm:$imm))]> {
bits<3> mode;

4
lib/Target/BPF/InstPrinter/BPFInstPrinter.cpp
View File

@@ -88,7 +88,9 @@ void BPFInstPrinter::printImm64Operand(const MCInst *MI, unsigned OpNo,
raw_ostream &O) {
const MCOperand &Op = MI->getOperand(OpNo);
if (Op.isImm())
O << (uint64_t)Op.getImm();
O << (uint64_t)Op.getImm() << "ll";
else if (Op.isExpr())
printExpr(Op.getExpr(), O);
else
O << Op;
}