From 73736df88ba5a35bf172191c2dea5294306fce04 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Mon, 1 Mar 2010 22:00:11 +0000 Subject: [PATCH] Remove the optimize for code size limitation on r67917. Optimize 64-bit imul by constants into leas + shl regardless if optimizing for code size. The size saving from using imulq isn't worth it. Also, the lea and shl instructions may expose further optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97507 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86ISelLowering.cpp | 4 ---- 1 file changed, 4 deletions(-) diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index b0a1bff04c1..8cfc1b28415 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -9233,10 +9233,6 @@ static SDValue PerformANDCombine(SDNode *N, SelectionDAG &DAG, /// LEA + SHL, LEA + LEA. static SDValue PerformMulCombine(SDNode *N, SelectionDAG &DAG, TargetLowering::DAGCombinerInfo &DCI) { - if (DAG.getMachineFunction(). - getFunction()->hasFnAttr(Attribute::OptimizeForSize)) - return SDValue(); - if (DCI.isBeforeLegalize() || DCI.isCalledByLegalizer()) return SDValue(); -- 2.34.1