From 81d0c36d22142da8413f8b2483582df70968ecb3 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Tue, 9 Mar 2010 03:01:40 +0000 Subject: [PATCH] Don't try to fold V_SET0 and V_SETALLONES to loads in medium and large code models. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98042 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86InstrInfo.cpp | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 39bda04b4d1..4fd91bbc2fd 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -2525,6 +2525,11 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF, // Folding a V_SET0 or V_SETALLONES as a load, to ease register pressure. // Create a constant-pool entry and operands to load from it. + // Medium and large mode can't fold loads this way. + if (TM.getCodeModel() != CodeModel::Small && + TM.getCodeModel() != CodeModel::Kernel) + return NULL; + // x86-32 PIC requires a PIC base register for constant pools. unsigned PICBase = 0; if (TM.getRelocationModel() == Reloc::PIC_) {