diff options
author | Dan Gohman <gohman@apple.com> | 2010-11-12 19:14:00 +0000 |
---|---|---|
committer | Dan Gohman <gohman@apple.com> | 2010-11-12 19:14:00 +0000 |
commit | 52668c9a3025ee64b408bf041453c93a1ac51908 (patch) | |
tree | 5279a5f9731179b35c0543839e69eb3d1eacacfd | |
parent | 269f10b316b41fde5c9bf3f6e5c471f371862834 (diff) | |
download | llvm-52668c9a3025ee64b408bf041453c93a1ac51908.tar.gz llvm-52668c9a3025ee64b408bf041453c93a1ac51908.tar.bz2 llvm-52668c9a3025ee64b408bf041453c93a1ac51908.tar.xz |
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
-rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index b938539a7f..ee6643336f 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<const AllocaInst *>(V)) || + FuncInfo.MBBMap[I->getParent()] == FuncInfo.MBB) { + Opcode = I->getOpcode(); + U = I; + } } else if (const ConstantExpr *C = dyn_cast<ConstantExpr>(V)) { Opcode = C->getOpcode(); U = C; |