[llvm-commits] [llvm] r83117 - /llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp

[Jim Grosbach]

Author: grosbach
Date: Tue Sep 29 18:17:20 2009
New Revision: 83117

URL: http://llvm.org/viewvc/llvm-project?rev=83117&view=rev
Log:
minor cleanup and add clarifying comment

Modified:
    llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp

Modified: llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp?rev=83117&r1=83116&r2=83117&view=diff

==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp Tue Sep 29 18:17:20 2009
@@ -668,13 +668,15 @@
             NumExtras--;
           }
         }
-        while (NumExtras && !UnspilledCS2GPRs.empty() &&
-               !AFI->isThumb1OnlyFunction()) {
-          unsigned Reg = UnspilledCS2GPRs.back();
-          UnspilledCS2GPRs.pop_back();
-          if (!isReservedReg(MF, Reg)) {
-            Extras.push_back(Reg);
-            NumExtras--;
+        // For non-Thumb1 functions, also check for hi-reg CS registers
+        if (!AFI->isThumb1OnlyFunction()) {
+          while (NumExtras && !UnspilledCS2GPRs.empty()) {
+            unsigned Reg = UnspilledCS2GPRs.back();
+            UnspilledCS2GPRs.pop_back();
+            if (!isReservedReg(MF, Reg)) {
+              Extras.push_back(Reg);
+              NumExtras--;
+            }
           }
         }
         if (Extras.size() && NumExtras == 0) {