[StackSafety] Use getSignedMin() to serialize ranges

Almost NFC as it's important only for full sets which should not
be serialized at all.

Author: vitalybuka

llvm/lib/IR/AsmWriter.cpp

@@ -3089,7 +3089,7 @@ void AssemblyWriter::printFunctionSummary(const FunctionSummary *FS) {
     printTypeIdInfo(*TIdInfo);
 
   auto PrintRange = [&](const ConstantRange &Range) {
-    Out << "[" << Range.getLower() << ", " << Range.getSignedMax() << "]";
+    Out << "[" << Range.getSignedMin() << ", " << Range.getSignedMax() << "]";
   };
 
   if (!FS->paramAccesses().empty()) {

llvm/test/Analysis/StackSafetyAnalysis/ipa.ll

@@ -706,17 +706,17 @@ entry:
 ; INDEX-DAG: guid: [[Write1SameModule]], {{.*}}, params: ((param: 0, offset: [0, 0])))))
 ; INDEX-DAG: guid: [[Write8]], {{.*}}, params: ((param: 0, offset: [0, 7])))))
 ; INDEX-DAG: guid: [[Write4_2]], {{.*}}, params: ((param: 0, offset: [0, 3]), (param: 1, offset: [0, 3])))))
-; INDEX-DAG: guid: [[RecursiveWithOffset]], {{.*}}, params: ((param: 1, offset: [-1, 9223372036854775807])))))
+; INDEX-DAG: guid: [[RecursiveWithOffset]], {{.*}}, params: ((param: 1, offset: [-9223372036854775808, 9223372036854775807])))))
 ; INDEX-DAG: guid: [[Weak]], {{.*}}, funcFlags: ({{.*}}))))
 ; INDEX-DAG: guid: [[Write1Private]], {{.*}}, params: ((param: 0, offset: [-1, -1])))))
 ; INDEX-DAG: guid: [[InterposableWrite1]], {{.*}}, params: ((param: 0, offset: [0, 0])))))
 ; INDEX-DAG: guid: [[Private]], {{.*}}, params: ((param: 0, offset: [-1, -1])))))
 ; INDEX-DAG: guid: [[Rec1]], {{.*}}, params: ((param: 0, offset: [3, 6])))))
-; INDEX-DAG: guid: [[RecursiveNoOffset]], {{.*}}, params: ((param: 0, offset: [-1, 9223372036854775807]), (param: 2, offset: [0, 3])))))
-; INDEX-DAG: guid: [[Write1Weak]], {{.*}}, params: ((param: 0, offset: [-1, 9223372036854775807])))))
+; INDEX-DAG: guid: [[RecursiveNoOffset]], {{.*}}, params: ((param: 0, offset: [-9223372036854775808, 9223372036854775807]), (param: 2, offset: [0, 3])))))
+; INDEX-DAG: guid: [[Write1Weak]], {{.*}}, params: ((param: 0, offset: [-9223372036854775808, 9223372036854775807])))))
 ; INDEX-DAG: guid: [[Write1]], {{.*}}, params: ((param: 0, offset: [0, 0])))))
 ; INDEX-DAG: guid: [[PreemptableWrite1]], {{.*}}, funcFlags: ({{.*}}))))
 ; INDEX-DAG: guid: [[WriteAndReturn8]], {{.*}}, funcFlags: ({{.*}}))))
-; INDEX-DAG: guid: [[Write1DiffModule]], {{.*}}, params: ((param: 0, offset: [-1, 9223372036854775807])))))
+; INDEX-DAG: guid: [[Write1DiffModule]], {{.*}}, params: ((param: 0, offset: [-9223372036854775808, 9223372036854775807])))))
 ; INDEX-DAG: guid: [[ReturnAlloca]], {{.*}}, insts: 2)))
 ; INDEX-LABEL: blockcount: