VirtRegMap is counting spill slots, not register spills.
Fix the stats counters to reflect that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139819 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/VirtRegMap.cpp b/lib/CodeGen/VirtRegMap.cpp
index 7557979..e9f89c5 100644
--- a/lib/CodeGen/VirtRegMap.cpp
+++ b/lib/CodeGen/VirtRegMap.cpp
@@ -41,8 +41,8 @@
#include <algorithm>
using namespace llvm;
-STATISTIC(NumSpills , "Number of register spills");
-STATISTIC(NumIdCopies, "Number of identity moves eliminated after rewriting");
+STATISTIC(NumSpillSlots, "Number of spill slots allocated");
+STATISTIC(NumIdCopies, "Number of identity moves eliminated after rewriting");
//===----------------------------------------------------------------------===//
// VirtRegMap implementation
@@ -111,6 +111,7 @@
unsigned Idx = SS-LowSpillSlot;
while (Idx >= SpillSlotToUsesMap.size())
SpillSlotToUsesMap.resize(SpillSlotToUsesMap.size()*2);
+ ++NumSpillSlots;
return SS;
}
@@ -130,7 +131,6 @@
assert(Virt2StackSlotMap[virtReg] == NO_STACK_SLOT &&
"attempt to assign stack slot to already spilled register");
const TargetRegisterClass* RC = MF->getRegInfo().getRegClass(virtReg);
- ++NumSpills;
return Virt2StackSlotMap[virtReg] = createSpillSlot(RC);
}
diff --git a/test/CodeGen/X86/pr3495.ll b/test/CodeGen/X86/pr3495.ll
index c612a6e..3dcd6da 100644
--- a/test/CodeGen/X86/pr3495.ll
+++ b/test/CodeGen/X86/pr3495.ll
@@ -1,5 +1,5 @@
; RUN: llc < %s -march=x86 -stats -regalloc=linearscan |& grep {Number of loads added} | grep 2
-; RUN: llc < %s -march=x86 -stats -regalloc=linearscan |& grep {Number of register spills} | grep 1
+; RUN: llc < %s -march=x86 -stats -regalloc=linearscan |& grep {Number of spill slots allocated} | grep 1
; RUN: llc < %s -march=x86 -stats -regalloc=linearscan |& grep {Number of machine instrs printed} | grep 34
; PR3495