Fix off-by-one error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148077 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp
index 5dfc0bb85d889eaa25151820470b6ab02a2a89c8..b438672f88e49d371e946ac5276bda4034ed0c4d 100644 (file)
--- a/lib/Target/X86/X86FrameLowering.cpp
+++ b/lib/Target/X86/X86FrameLowering.cpp
@@ -458,7 +458,7 @@ encodeCompactUnwindRegistersWithFrame(unsigned SavedRegs[CU_NUM_SAVED_REGS],
   // Encode the registers in the order they were saved, 3-bits per register. The
   // registers are numbered from 1 to CU_NUM_SAVED_REGS.
   uint32_t RegEnc = 0;
-  for (int I = CU_NUM_SAVED_REGS, Idx = 0; I != -1; --I) {
+  for (int I = CU_NUM_SAVED_REGS - 1, Idx = 0; I != -1; --I) {
     unsigned Reg = SavedRegs[I];
     if (Reg == 0) continue;