Use methods to access data stored with frame instructions

Instructions CALLSEQ_START..CALLSEQ_END and their target dependent
counterparts keep data like frame size, stack adjustment etc. These
data are accessed by getOperand using hard coded indices. It is
error prone way. This change implements the access by special methods,
which improve readability and allow changing data representation without
massive changes of index values.

Differential Revision: https://reviews.llvm.org/D31953

llvm-svn: 300196

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/Target/X86/X86FrameLowering.h b/llvm/lib/Target/X86/X86FrameLowering.h
index e1b04d6dc30..863dc8b2296 100644
--- a/llvm/lib/Target/X86/X86FrameLowering.h
+++ b/llvm/lib/Target/X86/X86FrameLowering.h
@@ -20,6 +20,7 @@ namespace llvm {
 
 class MachineInstrBuilder;
 class MCCFIInstruction;
+class X86InstrInfo;
 class X86Subtarget;
 class X86RegisterInfo;
 
@@ -30,7 +31,7 @@ public:
   // Cached subtarget predicates.
 
   const X86Subtarget &STI;
-  const TargetInstrInfo &TII;
+  const X86InstrInfo &TII;
   const X86RegisterInfo *TRI;
 
   unsigned SlotSize;