From 52668c9a3025ee64b408bf041453c93a1ac51908 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Fri, 12 Nov 2010 19:14:00 +0000 Subject: [PATCH] When the definition of an address value is in a different block from the user of the address, fall back to just using the address in a register instead of bailing out of fast-isel altogether. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118917 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86FastISel.cpp | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index b938539a7f4..ee6643336fd 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -320,11 +320,11 @@ bool X86FastISel::X86SelectAddress(const Value *V, X86AddressMode &AM) { // Don't walk into other basic blocks; it's possible we haven't // visited them yet, so the instructions may not yet be assigned // virtual registers. - if (FuncInfo.MBBMap[I->getParent()] != FuncInfo.MBB) - return false; - - Opcode = I->getOpcode(); - U = I; + if (FuncInfo.StaticAllocaMap.count(static_cast(V)) || + FuncInfo.MBBMap[I->getParent()] == FuncInfo.MBB) { + Opcode = I->getOpcode(); + U = I; + } } else if (const ConstantExpr *C = dyn_cast(V)) { Opcode = C->getOpcode(); U = C; -- 2.34.1