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Do not add the pass that restores $gp if target is Mips64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140607 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -96,7 +96,10 @@ addPreEmitPass(PassManagerBase &PM, CodeGenOpt::Level OptLevel)
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bool MipsTargetMachine::
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addPreRegAlloc(PassManagerBase &PM, CodeGenOpt::Level OptLevel) {
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PM.add(createMipsEmitGPRestorePass(*this));
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// Do not restore $gp if target is Mips64.
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// In N32/64, $gp is a callee-saved register.
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if (!Subtarget.hasMips64())
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PM.add(createMipsEmitGPRestorePass(*this));
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return true;
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}
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