Revert r58489. It isn't correct for all cases.

llvm-svn: 58523

2 files changed, 4 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/PrologEpilogInserter.cpp b/llvm/lib/CodeGen/PrologEpilogInserter.cpp
index 2469c8e000c..d3b0b11c705 100644
--- a/llvm/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/llvm/lib/CodeGen/PrologEpilogInserter.cpp
@@ -273,10 +273,10 @@ void PEI::saveCalleeSavedRegisters(MachineFunction &Fn) {
       MBB = FI;
       I = MBB->end(); --I;
 
-      // Skip over all "return" instructions, which are part of the return
+      // Skip over all terminator instructions, which are part of the return
       // sequence.
       MachineBasicBlock::iterator I2 = I;
-      while (I2 != MBB->begin() && (--I2)->getDesc().isReturn())
+      while (I2 != MBB->begin() && (--I2)->getDesc().isTerminator())
         I = I2;
 
       bool AtStart = I == MBB->begin();
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp
index 9e9495dd12b..97e1de729a1 100644
--- a/llvm/lib/Target/X86/X86RegisterInfo.cpp
+++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp
@@ -850,7 +850,8 @@ void X86RegisterInfo::emitEpilogue(MachineFunction &MF,
   while (MBBI != MBB.begin()) {
     MachineBasicBlock::iterator PI = prior(MBBI);
     unsigned Opc = PI->getOpcode();
-    if (Opc != X86::POP32r && Opc != X86::POP64r && !PI->getDesc().isReturn())
+    if (Opc != X86::POP32r && Opc != X86::POP64r &&
+        !PI->getDesc().isTerminator())
       break;
     --MBBI;
   }