Use std::numeric_limits<float>::infinity() instead of
std::numeric_limits<float>::max() for weighting preallocated
intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11427 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 22cdb4f..f965c5f 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -436,7 +436,7 @@
LiveIntervals::Interval::Interval(unsigned r)
: reg(r),
weight((MRegisterInfo::isPhysicalRegister(r) ?
- std::numeric_limits<float>::max() : 0.0F))
+ std::numeric_limits<float>::infinity() : 0.0F))
{
}
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index d26ee8f..0369a88 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/lib/CodeGen/RegAllocLinearScan.cpp
@@ -641,7 +641,7 @@
DEBUG(std::cerr << "\t\tassigning stack slot at interval "<< *cur << ":\n");
- float minWeight = std::numeric_limits<float>::max();
+ float minWeight = std::numeric_limits<float>::infinity();
unsigned minReg = 0;
const TargetRegisterClass* rc = mf_->getSSARegMap()->getRegClass(cur->reg);
for (TargetRegisterClass::iterator i = rc->allocation_order_begin(*mf_);