Revert "Merge pull request swiftlang#79707 from DougGregor/transparent-integer-conversions"

This reverts commit 9c2c4ea, reversing
changes made to 829e03c.

Author: meg-gupta

lib/SILOptimizer/Mandatory/OSLogOptimization.cpp

@@ -938,16 +938,6 @@ static void substituteConstants(FoldState &foldState) {
   for (SILValue constantSILValue : foldState.getConstantSILValues()) {
     SymbolicValue constantSymbolicVal =
         evaluator.lookupConstValue(constantSILValue).value();
-    CanType instType = constantSILValue->getType().getASTType();
-
-    // If the SymbolicValue is a string but the instruction that is folded is
-    // not String typed, we are tracking a StaticString which is represented as
-    // a raw pointer. Skip folding StaticString as they are already efficiently
-    // represented.
-    if (constantSymbolicVal.getKind() == SymbolicValue::String &&
-        !instType->isString())
-      continue;
-
     // Make sure that the symbolic value tracked in the foldState is a constant.
     // In the case of ArraySymbolicValue, the array storage could be a non-constant
     // if some instruction in the array initialization sequence was not evaluated
@@ -986,6 +976,7 @@ static void substituteConstants(FoldState &foldState) {
 
     SILBuilderWithScope builder(insertionPoint);
     SILLocation loc = insertionPoint->getLoc();
+    CanType instType = constantSILValue->getType().getASTType();
     SILValue foldedSILVal = emitCodeForSymbolicValue(
         constantSymbolicVal, instType, builder, loc, foldState.stringInfo);
 

stdlib/public/core/Integers.swift

@@ -3041,7 +3041,8 @@ extension UnsignedInteger where Self: FixedWidthInteger {
   /// - Parameter source: A value to convert to this type of integer. The value
   ///   passed as `source` must be representable in this type.
   @_semantics("optimize.sil.specialize.generic.partial.never")
-  @_transparent
+  @inlinable // FIXME(inline-always)
+  @inline(__always)
   public init<T: BinaryInteger>(_ source: T) {
     // This check is potentially removable by the optimizer
     if T.isSigned {
@@ -3056,7 +3057,8 @@ extension UnsignedInteger where Self: FixedWidthInteger {
   }
 
   @_semantics("optimize.sil.specialize.generic.partial.never")
-  @_transparent
+  @inlinable // FIXME(inline-always)
+  @inline(__always)
   public init?<T: BinaryInteger>(exactly source: T) {
     // This check is potentially removable by the optimizer
     if T.isSigned && source < (0 as T) {
@@ -3254,7 +3256,8 @@ extension SignedInteger where Self: FixedWidthInteger {
   /// - Parameter source: A value to convert to this type of integer. The value
   ///   passed as `source` must be representable in this type.
   @_semantics("optimize.sil.specialize.generic.partial.never")
-  @_transparent
+  @inlinable // FIXME(inline-always)
+  @inline(__always)
   public init<T: BinaryInteger>(_ source: T) {
     // This check is potentially removable by the optimizer
     if T.isSigned && source.bitWidth > Self.bitWidth {
@@ -3271,7 +3274,8 @@ extension SignedInteger where Self: FixedWidthInteger {
   }
 
   @_semantics("optimize.sil.specialize.generic.partial.never")
-  @_transparent
+  @inlinable // FIXME(inline-always)
+  @inline(__always)
   public init?<T: BinaryInteger>(exactly source: T) {
     // This check is potentially removable by the optimizer
     if T.isSigned && source.bitWidth > Self.bitWidth && source < Self.min {

test/IRGen/integer_conversion.swift

@@ -16,8 +16,10 @@ import FunctionTemplates
 // CHECK:   [[ADD_TWO_FN:%.*]] = function_ref @{{_Z18addMixedTypeParamsIiiET_S0_T0_|\?\?\$addMixedTypeParams@HH@@YAHHH@Z}} : $@convention(c) (Int32, Int32) -> Int32
 // CHECK:   [[C:%.*]] = apply [[ADD_TWO_FN]]([[A]], [[B]]) : $@convention(c) (Int32, Int32) -> Int32
 
+// CHECK:   [[C_32_ADDR:%.*]] = alloc_stack $Int32
+// CHECK:   [[C_32:%.*]] = load [[C_32_ADDR]] : $*Int32
 // CHECK:   [[ADD_FN:%.*]] = function_ref @{{_Z17addSameTypeParamsIiET_S0_S0_|\?\?\$addSameTypeParams@H@@YAHHH@Z}} : $@convention(c) (Int32, Int32) -> Int32
-// CHECK:   [[OUT:%.*]] = apply [[ADD_FN]]([[B]], [[C_32:%.*]]) : $@convention(c) (Int32, Int32) -> Int32
+// CHECK:   [[OUT:%.*]] = apply [[ADD_FN]]([[B]], [[C_32]]) : $@convention(c) (Int32, Int32) -> Int32
 // CHECK:   return [[OUT]] : $Int32
 
 // CHECK-LABEL: end sil function '$s4main4test1xs5Int32VAE_tF'

test/Interop/Cxx/templates/function-template-silgen.swift

@@ -174,7 +174,8 @@ internal func interpretIntTruncations() -> Int8 {
 internal func testInvalidIntTruncations(a: Int32) -> Int8 {
   return Int8(a)
     // CHECK: note: {{.*}}: Not enough bits to represent the passed value
-    // CHECK: note: operation traps
+    // CHECK: note: operation performed during this call traps
+    // CHECK: function_ref @$sSZss17FixedWidthIntegerRzrlEyxqd__cSzRd__lufC
 }
 
 @_semantics("test_driver")
@@ -219,7 +220,8 @@ internal func interpretSingedUnsignedConversions() -> UInt32 {
 internal func testInvalidSingedUnsignedConversions(a: Int64) -> UInt64 {
   return UInt64(a)
     // CHECK: note: {{.*}}: Negative value is not representable
-    // CHECK: note: operation traps
+    // CHECK: note: operation performed during this call traps
+    // CHECK: function_ref @$sSUss17FixedWidthIntegerRzrlEyxqd__cSzRd__lufC
 }
 
 @_semantics("test_driver")

test/SILOptimizer/Inputs/constant_evaluable.swift

@@ -71,7 +71,8 @@ internal func interpretIntTruncations() -> Int16 {
 internal func testInvalidIntTruncations(a: Int64) -> Int8 {
   return Int8(a)
     // CHECK: note: {{.*}} Not enough bits to represent the passed value
-    // CHECK: note: operation traps
+    // CHECK: note: operation performed during this call traps
+    // CHECK: function_ref @$sSZss17FixedWidthIntegerRzrlEyxqd__cSzRd__lufC
 }
 
 @_semantics("test_driver")