[llvm] 683c693 - [RegScavenger] Simplify forward(MachineBasicBlock::iterator). NFC.

[Jay Foad via llvm-commits]

Author: Jay Foad
Date: 2023-05-15T11:39:17+01:00
New Revision: 683c6936a17441634b63ede778b075f40112a73c

URL: https://github.com/llvm/llvm-project/commit/683c6936a17441634b63ede778b075f40112a73c
DIFF: https://github.com/llvm/llvm-project/commit/683c6936a17441634b63ede778b075f40112a73c.diff

LOG: [RegScavenger] Simplify forward(MachineBasicBlock::iterator). NFC.

Added: 
    

Modified: 
    llvm/include/llvm/CodeGen/RegisterScavenging.h

Removed: 
    


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diff  --git a/llvm/include/llvm/CodeGen/RegisterScavenging.h b/llvm/include/llvm/CodeGen/RegisterScavenging.h
index e6995672931cf..94a127ebee184 100644
--- a/llvm/include/llvm/CodeGen/RegisterScavenging.h
+++ b/llvm/include/llvm/CodeGen/RegisterScavenging.h
@@ -105,8 +105,8 @@ class RegScavenger {
   /// Move the internal MBB iterator and update register states until
   /// it has processed the specific iterator.
   void forward(MachineBasicBlock::iterator I) {
-    if (!Tracking && MBB->begin() != I) forward();
-    while (MBBI != I) forward();
+    while (!Tracking || MBBI != I)
+      forward();
   }
 
   /// Update internal register state and move MBB iterator backwards.