[llvm-commits] [llvm] r83023 - /llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp

[Jim Grosbach]

Author: grosbach
Date: Mon Sep 28 17:08:06 2009
New Revision: 83023

URL: http://llvm.org/viewvc/llvm-project?rev=83023&view=rev
Log:
Adjust processFunctionBeforeCalleeSavedScan() to correctly reserve a stack
slot for the register scavenger when compiling Thumb1 functions.

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=83023&r1=83022&r2=83023&view=diff

==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMBaseRegisterInfo.cpp Mon Sep 28 17:08:06 2009
@@ -536,7 +536,8 @@
       }
     }
 
-    if (CSRegClasses[i] == ARM::GPRRegisterClass) {
+    if (CSRegClasses[i] == ARM::GPRRegisterClass ||
+        CSRegClasses[i] == ARM::tGPRRegisterClass) {
       if (Spilled) {
         NumGPRSpills++;
 
@@ -667,7 +668,8 @@
             NumExtras--;
           }
         }
-        while (NumExtras && !UnspilledCS2GPRs.empty()) {
+        while (NumExtras && !UnspilledCS2GPRs.empty() &&
+               !AFI->isThumb1OnlyFunction()) {
           unsigned Reg = UnspilledCS2GPRs.back();
           UnspilledCS2GPRs.pop_back();
           if (!isReservedReg(MF, Reg)) {