diff options
| author | Chris Lattner <sabre@nondot.org> | 2007-10-17 06:17:29 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-10-17 06:17:29 +0000 |
| commit | 7ef1a4bf0401d54ce88d10bcb4d1a2e98663a843 (patch) | |
| tree | c797ebe484c162f5d9478454a106e24d1a93d63d /lib | |
| parent | 2ff75ee9ab90d2f44d6425f03af14077fb747a20 (diff) | |
Change fp to sint legalization on x86-32 to do 2 x i32
loads instead of 1 x i64 loads. This doesn't change any functionality yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43068 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp index ccb48505c1..9c9c6a41e2 100644 --- a/lib/Target/X86/X86ISelLowering.cpp +++ b/lib/Target/X86/X86ISelLowering.cpp @@ -3952,8 +3952,18 @@ SDOperand X86TargetLowering::LowerFP_TO_SINT(SDOperand Op, SelectionDAG &DAG) { SDOperand Ops[] = { Chain, Value, StackSlot }; SDOperand FIST = DAG.getNode(Opc, MVT::Other, Ops, 3); - // Load the result. - return DAG.getLoad(Op.getValueType(), FIST, StackSlot, NULL, 0); + // Load the result. If this is an i64 load on an x86-32 host, expand the + // load. + if (Op.getValueType() != MVT::i64 || Subtarget->is64Bit()) + return DAG.getLoad(Op.getValueType(), FIST, StackSlot, NULL, 0); + + SDOperand Lo = DAG.getLoad(MVT::i32, FIST, StackSlot, NULL, 0); + StackSlot = DAG.getNode(ISD::ADD, StackSlot.getValueType(), StackSlot, + DAG.getConstant(StackSlot.getValueType(), 4)); + SDOperand Hi = DAG.getLoad(MVT::i32, FIST, StackSlot, NULL, 0); + + + return DAG.getNode(ISD::BUILD_PAIR, MVT::i64, Lo, Hi); } SDOperand X86TargetLowering::LowerFABS(SDOperand Op, SelectionDAG &DAG) { |