From b0e341bca13cc4c729ba577cfcc6257bb1da0b33 Mon Sep 17 00:00:00 2001 From: Mon P Wang Date: Thu, 5 Feb 2009 04:47:42 +0000 Subject: [PATCH] Fix a bug where we were not emitting a cvt rnd sat node for converting between a unsigned integer and signed integer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63831 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index dd00e97b9ef..524f5fffb5e 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1170,8 +1170,10 @@ SDValue SelectionDAG::getConvertRndSat(MVT VT, DebugLoc dl, SDValue Val, SDValue DTy, SDValue STy, SDValue Rnd, SDValue Sat, ISD::CvtCode Code) { - // If the src and dest types are the same, no conversion is necessary. - if (DTy == STy) + // If the src and dest types are the same and the conversion is between + // integer types of the same sign or two floats, no conversion is necessary. + if (DTy == STy && + (Code == ISD::CVT_UU || Code == ISD::CVT_SS || Code == ISD::CVT_FF)) return Val; FoldingSetNodeID ID; -- 2.34.1