From d25d16c901405a329fc99f2cb845105164e540e6 Mon Sep 17 00:00:00 2001 From: Eli Friedman Date: Sat, 14 May 2011 00:19:32 +0000 Subject: [PATCH] Zap useless code; this hasn't done anything useful since fast-isel switched to being bottom-up (a very long time ago). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131329 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86FastISel.cpp | 29 ----------------------------- 1 file changed, 29 deletions(-) diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index 1382f184c34..ecb6ade2323 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -108,8 +108,6 @@ private: bool X86SelectFPExt(const Instruction *I); bool X86SelectFPTrunc(const Instruction *I); - bool X86SelectExtractValue(const Instruction *I); - bool X86VisitIntrinsicCall(const IntrinsicInst &I); bool X86SelectCall(const Instruction *I); @@ -1303,31 +1301,6 @@ bool X86FastISel::X86SelectTrunc(const Instruction *I) { return true; } -bool X86FastISel::X86SelectExtractValue(const Instruction *I) { - const ExtractValueInst *EI = cast(I); - const Value *Agg = EI->getAggregateOperand(); - - if (const IntrinsicInst *CI = dyn_cast(Agg)) { - switch (CI->getIntrinsicID()) { - default: break; - case Intrinsic::sadd_with_overflow: - case Intrinsic::uadd_with_overflow: { - // Cheat a little. We know that the registers for "add" and "seto" are - // allocated sequentially. However, we only keep track of the register - // for "add" in the value map. Use extractvalue's index to get the - // correct register for "seto". - unsigned OpReg = getRegForValue(Agg); - if (OpReg == 0) - return false; - UpdateValueMap(I, OpReg + *EI->idx_begin()); - return true; - } - } - } - - return false; -} - bool X86FastISel::TryEmitSmallMemcpy(X86AddressMode DestAM, X86AddressMode SrcAM, uint64_t Len) { // Make sure we don't bloat code by inlining very large memcpy's. @@ -1911,8 +1884,6 @@ X86FastISel::TargetSelectInstruction(const Instruction *I) { return X86SelectFPExt(I); case Instruction::FPTrunc: return X86SelectFPTrunc(I); - case Instruction::ExtractValue: - return X86SelectExtractValue(I); case Instruction::IntToPtr: // Deliberate fall-through. case Instruction::PtrToInt: { EVT SrcVT = TLI.getValueType(I->getOperand(0)->getType());