[AMDGPU] Fix SGPR usage count in SI scheduler

Patch by Axel Davy (axel.davy@normalesup.org)

Differential revision: https://reviews.llvm.org/D30149

llvm-svn: 298710

diff --git a/llvm/lib/Target/AMDGPU/SIMachineScheduler.cpp b/llvm/lib/Target/AMDGPU/SIMachineScheduler.cpp
index fa84435..2c7ea85 100644 (file)
--- a/llvm/lib/Target/AMDGPU/SIMachineScheduler.cpp
+++ b/llvm/lib/Target/AMDGPU/SIMachineScheduler.cpp
@@ -1465,8 +1465,8 @@ SIScheduleBlock *SIScheduleBlockScheduler::pickBlock() {
                         VregCurrentUsage, SregCurrentUsage);
   if (VregCurrentUsage > maxVregUsage)
     maxVregUsage = VregCurrentUsage;
-  if (VregCurrentUsage > maxSregUsage)
-    maxSregUsage = VregCurrentUsage;
+  if (SregCurrentUsage > maxSregUsage)
+    maxSregUsage = SregCurrentUsage;
   DEBUG(
     dbgs() << "Picking New Blocks\n";
     dbgs() << "Available: ";