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[mips][mips64r6] ssnop is deprecated on MIPS32r6/MIPS64r6

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Summary: Depends on D4120

Reviewers: jkolek, zoran.jovanovic, vmedic

Reviewed By: zoran.jovanovic, vmedic

Differential Revision: http://reviews.llvm.org/D4121

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211021 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Sanders
2014-06-16 13:25:35 +00:00
parent 77ae274ae7
commit dfcd461d62
4 changed files with 22 additions and 3 deletions
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14
lib/Target/Mips/AsmParser/MipsAsmParser.cpp
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@@ -176,6 +176,12 @@ class MipsAsmParser : public MCTargetAsmParser {
bool hasMips4() const { return STI.getFeatureBits() & Mips::FeatureMips4; }
bool hasMips32() const { return STI.getFeatureBits() & Mips::FeatureMips32; }
bool hasMips32r6() const {
return STI.getFeatureBits() & Mips::FeatureMips32r6;
}
bool hasMips64r6() const {
return STI.getFeatureBits() & Mips::FeatureMips64r6;
}
bool parseRegister(unsigned &RegNum);
@@ -905,6 +911,14 @@ bool MipsAsmParser::processInstruction(MCInst &Inst, SMLoc IDLoc,
}
}
// SSNOP is deprecated on MIPS32r6/MIPS64r6
// We still accept it but it is a normal nop.
if (hasMips32r6() && Inst.getOpcode() == Mips::SSNOP) {
std::string ISA = hasMips64r6() ? "MIPS64r6" : "MIPS32r6";
Warning(IDLoc, "ssnop is deprecated for " + ISA + " and is equivalent to a "
"nop instruction");
}
if (MCID.hasDelaySlot() && Options.isReorder()) {
// If this instruction has a delay slot and .set reorder is active,
// emit a NOP after it.