From 4fd552880c9f42f117bd79929ea0179f99bd6bb7 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Tue, 7 Apr 2009 20:40:11 +0000 Subject: Don't attempt to handle aggregate argument values in FastISel; let SelectionDAG do those. This fixes PR3955. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68546 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/SelectionDAG/FastISel.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'lib/CodeGen/SelectionDAG/FastISel.cpp') diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp index 6f09f794ea..eefe8a2884 100644 --- a/lib/CodeGen/SelectionDAG/FastISel.cpp +++ b/lib/CodeGen/SelectionDAG/FastISel.cpp @@ -57,11 +57,15 @@ using namespace llvm; unsigned FastISel::getRegForValue(Value *V) { - MVT::SimpleValueType VT = TLI.getValueType(V->getType()).getSimpleVT(); + MVT RealVT = TLI.getValueType(V->getType(), /*AllowUnknown=*/true); + // Don't handle non-simple values in FastISel. + if (!RealVT.isSimple()) + return 0; // Ignore illegal types. We must do this before looking up the value // in ValueMap because Arguments are given virtual registers regardless // of whether FastISel can handle them. + MVT::SimpleValueType VT = RealVT.getSimpleVT(); if (!TLI.isTypeLegal(VT)) { // Promote MVT::i1 to a legal type though, because it's common and easy. if (VT == MVT::i1) -- cgit v1.2.3-18-g5258