From ae749a9bb5aa4e350041e275ea26f4cc52197392 Mon Sep 17 00:00:00 2001 From: Nate Begeman Date: Tue, 25 Oct 2005 23:48:36 +0000 Subject: [PATCH] Correctly Expand or Promote FP_TO_UINT based on the capabilities of the machine. This allows us to generate great code for i32 FP_TO_UINT now on targets with 64 bit extensions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23993 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/PPCISelLowering.cpp | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/lib/Target/PowerPC/PPCISelLowering.cpp b/lib/Target/PowerPC/PPCISelLowering.cpp index 743807bc62a..4deff28bf06 100644 --- a/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/lib/Target/PowerPC/PPCISelLowering.cpp @@ -81,9 +81,6 @@ PPCTargetLowering::PPCTargetLowering(TargetMachine &TM) setOperationAction(ISD::BRCOND, MVT::Other, Expand); setOperationAction(ISD::BRCONDTWOWAY, MVT::Other, Expand); - // PowerPC does not have FP_TO_UINT - setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand); - // PowerPC turns FP_TO_SINT into FCTIWZ and some load/stores. setOperationAction(ISD::FP_TO_SINT, MVT::i32, Custom); @@ -98,6 +95,11 @@ PPCTargetLowering::PPCTargetLowering(TargetMachine &TM) // They also have instructions for converting between i64 and fp. setOperationAction(ISD::FP_TO_SINT, MVT::i64, Custom); setOperationAction(ISD::SINT_TO_FP, MVT::i64, Custom); + // To take advantage of the above i64 FP_TO_SINT, promote i32 FP_TO_UINT + setOperationAction(ISD::FP_TO_UINT, MVT::i32, Promote); + } else { + // PowerPC does not have FP_TO_UINT on 32 bit implementations. + setOperationAction(ISD::FP_TO_UINT, MVT::i32, Expand); } if (TM.getSubtarget().has64BitRegs()) { -- 2.34.1