From 28b77e968d2b01fc9da724762bd8ddcd80650e32 Mon Sep 17 00:00:00 2001 From: Duncan Sands Date: Tue, 6 Sep 2011 19:07:46 +0000 Subject: Add codegen support for vector select (in the IR this means a select with a vector condition); such selects become VSELECT codegen nodes. This patch also removes VSETCC codegen nodes, unifying them with SETCC nodes (codegen was actually often using SETCC for vector SETCC already). This ensures that various DAG combiner optimizations kick in for vector comparisons. Passes dragonegg bootstrap with no testsuite regressions (nightly testsuite as well as "make check-all"). Patch mostly by Nadav Rotem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139159 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/TargetLowering.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'lib/CodeGen/SelectionDAG/TargetLowering.cpp') diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp index 819e64084f..c6eeebe606 100644 --- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -609,6 +609,7 @@ TargetLowering::TargetLowering(const TargetMachine &tm, ExceptionPointerRegister = 0; ExceptionSelectorRegister = 0; BooleanContents = UndefinedBooleanContent; + BooleanVectorContents = UndefinedBooleanContent; SchedPreferenceInfo = Sched::Latency; JumpBufSize = 0; JumpBufAlignment = 0; @@ -915,7 +916,8 @@ const char *TargetLowering::getTargetNodeName(unsigned Opcode) const { } -MVT::SimpleValueType TargetLowering::getSetCCResultType(EVT VT) const { +EVT TargetLowering::getSetCCResultType(EVT VT) const { + assert(!VT.isVector() && "No default SetCC type for vectors!"); return PointerTy.SimpleTy; } @@ -2191,7 +2193,7 @@ TargetLowering::SimplifySetCC(EVT VT, SDValue N0, SDValue N1, } } else if (N1C->getAPIntValue() == 1 && (VT == MVT::i1 || - getBooleanContents() == ZeroOrOneBooleanContent)) { + getBooleanContents(false) == ZeroOrOneBooleanContent)) { SDValue Op0 = N0; if (Op0.getOpcode() == ISD::TRUNCATE) Op0 = Op0.getOperand(0); -- cgit v1.2.3-18-g5258