Reapply r107655 with fixes; insert the pseudo instruction into

the block before calling the expansion hook. And don't
put EFLAGS in a mbb's live-in list twice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107691 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index f2c50583c9..a0d7cf6619 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -173,14 +173,14 @@ bool X86TargetMachine::addInstSelector(PassManagerBase &PM,
   // Install an instruction selector.
   PM.add(createX86ISelDag(*this, OptLevel));
 
-  // Install a pass to insert x87 FP_REG_KILL instructions, as needed.
-  PM.add(createX87FPRegKillInserterPass());
-
   return false;
 }
 
 bool X86TargetMachine::addPreRegAlloc(PassManagerBase &PM,
                                       CodeGenOpt::Level OptLevel) {
+  // Install a pass to insert x87 FP_REG_KILL instructions, as needed.
+  PM.add(createX87FPRegKillInserterPass());
+
   PM.add(createX86MaxStackAlignmentHeuristicPass());
   return false;  // -print-machineinstr shouldn't print after this.
 }