Add grow() member that grows the maps when the number of virtual

registers in the function has changed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13893 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/VirtRegMap.h b/lib/CodeGen/VirtRegMap.h
index 3c2f8eec4ad7ebf7f42ffa47bbf07e5b538341d5..c4188bcfbcd3eb52ddfa75abfac6601518de5cc8 100644 (file)
--- a/lib/CodeGen/VirtRegMap.h
+++ b/lib/CodeGen/VirtRegMap.h
@@ -54,8 +54,12 @@ namespace llvm {
             : mf_(&mf),
               v2pMap_(NO_PHYS_REG),
               v2ssMap_(NO_STACK_SLOT) {
-            v2pMap_.grow(mf.getSSARegMap()->getLastVirtReg());
-            v2ssMap_.grow(mf.getSSARegMap()->getLastVirtReg());
+            grow();
+        }
+
+        void grow() {
+            v2pMap_.grow(mf_->getSSARegMap()->getLastVirtReg());
+            v2ssMap_.grow(mf_->getSSARegMap()->getLastVirtReg());
         }
 
         bool hasPhys(unsigned virtReg) const {