[NFC] Rename functions to match our naming scheme.

In the review of D111085 it was pointed out that these functions don't
conform to the naming scheme in use in LLVM. With this commit we should
be good for all of FPEnv.h.

Author: kpneal

llvm/include/llvm/IR/FPEnv.h

@@ -39,19 +39,19 @@ enum ExceptionBehavior : uint8_t {
 /// Returns a valid RoundingMode enumerator when given a string
 /// that is valid as input in constrained intrinsic rounding mode
 /// metadata.
-Optional<RoundingMode> StrToRoundingMode(StringRef);
+Optional<RoundingMode> convertStrToRoundingMode(StringRef);
 
 /// For any RoundingMode enumerator, returns a string valid as input in
 /// constrained intrinsic rounding mode metadata.
-Optional<StringRef> RoundingModeToStr(RoundingMode);
+Optional<StringRef> convertRoundingModeToStr(RoundingMode);
 
 /// Returns a valid ExceptionBehavior enumerator when given a string
 /// valid as input in constrained intrinsic exception behavior metadata.
-Optional<fp::ExceptionBehavior> StrToExceptionBehavior(StringRef);
+Optional<fp::ExceptionBehavior> convertStrToExceptionBehavior(StringRef);
 
 /// For any ExceptionBehavior enumerator, returns a string valid as
 /// input in constrained intrinsic exception behavior metadata.
-Optional<StringRef> ExceptionBehaviorToStr(fp::ExceptionBehavior);
+Optional<StringRef> convertExceptionBehaviorToStr(fp::ExceptionBehavior);
 
 /// Returns true if the exception handling behavior and rounding mode
 /// match what is used in the default floating point environment.

llvm/include/llvm/IR/IRBuilder.h

@@ -316,7 +316,7 @@ class IRBuilderBase {
   /// Set the exception handling to be used with constrained floating point
   void setDefaultConstrainedExcept(fp::ExceptionBehavior NewExcept) {
 #ifndef NDEBUG
-    Optional<StringRef> ExceptStr = ExceptionBehaviorToStr(NewExcept);
+    Optional<StringRef> ExceptStr = convertExceptionBehaviorToStr(NewExcept);
     assert(ExceptStr.hasValue() && "Garbage strict exception behavior!");
 #endif
     DefaultConstrainedExcept = NewExcept;
@@ -325,7 +325,7 @@ class IRBuilderBase {
   /// Set the rounding mode handling to be used with constrained floating point
   void setDefaultConstrainedRounding(RoundingMode NewRounding) {
 #ifndef NDEBUG
-    Optional<StringRef> RoundingStr = RoundingModeToStr(NewRounding);
+    Optional<StringRef> RoundingStr = convertRoundingModeToStr(NewRounding);
     assert(RoundingStr.hasValue() && "Garbage strict rounding mode!");
 #endif
     DefaultConstrainedRounding = NewRounding;
@@ -1176,7 +1176,7 @@ class IRBuilderBase {
     if (Rounding.hasValue())
       UseRounding = Rounding.getValue();
 
-    Optional<StringRef> RoundingStr = RoundingModeToStr(UseRounding);
+    Optional<StringRef> RoundingStr = convertRoundingModeToStr(UseRounding);
     assert(RoundingStr.hasValue() && "Garbage strict rounding mode!");
     auto *RoundingMDS = MDString::get(Context, RoundingStr.getValue());
 
@@ -1189,7 +1189,7 @@ class IRBuilderBase {
     if (Except.hasValue())
       UseExcept = Except.getValue();
 
-    Optional<StringRef> ExceptStr = ExceptionBehaviorToStr(UseExcept);
+    Optional<StringRef> ExceptStr = convertExceptionBehaviorToStr(UseExcept);
     assert(ExceptStr.hasValue() && "Garbage strict exception behavior!");
     auto *ExceptMDS = MDString::get(Context, ExceptStr.getValue());
 

llvm/lib/IR/FPEnv.cpp

@@ -17,7 +17,7 @@
 
 namespace llvm {
 
-Optional<RoundingMode> StrToRoundingMode(StringRef RoundingArg) {
+Optional<RoundingMode> convertStrToRoundingMode(StringRef RoundingArg) {
   // For dynamic rounding mode, we use round to nearest but we will set the
   // 'exact' SDNodeFlag so that the value will not be rounded.
   return StringSwitch<Optional<RoundingMode>>(RoundingArg)
@@ -30,7 +30,7 @@ Optional<RoundingMode> StrToRoundingMode(StringRef RoundingArg) {
       .Default(None);
 }
 
-Optional<StringRef> RoundingModeToStr(RoundingMode UseRounding) {
+Optional<StringRef> convertRoundingModeToStr(RoundingMode UseRounding) {
   Optional<StringRef> RoundingStr = None;
   switch (UseRounding) {
   case RoundingMode::Dynamic:
@@ -57,15 +57,17 @@ Optional<StringRef> RoundingModeToStr(RoundingMode UseRounding) {
   return RoundingStr;
 }
 
-Optional<fp::ExceptionBehavior> StrToExceptionBehavior(StringRef ExceptionArg) {
+Optional<fp::ExceptionBehavior>
+convertStrToExceptionBehavior(StringRef ExceptionArg) {
   return StringSwitch<Optional<fp::ExceptionBehavior>>(ExceptionArg)
       .Case("fpexcept.ignore", fp::ebIgnore)
       .Case("fpexcept.maytrap", fp::ebMayTrap)
       .Case("fpexcept.strict", fp::ebStrict)
       .Default(None);
 }
 
-Optional<StringRef> ExceptionBehaviorToStr(fp::ExceptionBehavior UseExcept) {
+Optional<StringRef>
+convertExceptionBehaviorToStr(fp::ExceptionBehavior UseExcept) {
   Optional<StringRef> ExceptStr = None;
   switch (UseExcept) {
   case fp::ebStrict:

llvm/lib/IR/IntrinsicInst.cpp

@@ -195,7 +195,7 @@ Optional<RoundingMode> ConstrainedFPIntrinsic::getRoundingMode() const {
     MD = MAV->getMetadata();
   if (!MD || !isa<MDString>(MD))
     return None;
-  return StrToRoundingMode(cast<MDString>(MD)->getString());
+  return convertStrToRoundingMode(cast<MDString>(MD)->getString());
 }
 
 Optional<fp::ExceptionBehavior>
@@ -207,7 +207,7 @@ ConstrainedFPIntrinsic::getExceptionBehavior() const {
     MD = MAV->getMetadata();
   if (!MD || !isa<MDString>(MD))
     return None;
-  return StrToExceptionBehavior(cast<MDString>(MD)->getString());
+  return convertStrToExceptionBehavior(cast<MDString>(MD)->getString());
 }
 
 bool ConstrainedFPIntrinsic::isDefaultFPEnvironment() const {