[SYCLomatic] Fix the migration of tanhf (#2709)

Signed-off-by: Jiang, Zhiwei <zhiwei.jiang@intel.com>

Author: zhiweij1

clang/lib/DPCT/RuleInfra/CallExprRewriterCommon.h

@@ -145,7 +145,7 @@ template <class SubExprT> class CastIfNotSameExprPrinter {
       : TypeInfo(std::forward<std::string>(T)),
         SubExpr(std::forward<SubExprT>(S)) {}
   template <class StreamT> void print(StreamT &Stream) const {
-    const Expr *InputArg = SubExpr->IgnoreImpCasts();
+    const Expr *InputArg = SubExpr->IgnoreUnlessSpelledInSource();
     clang::QualType ArgType = InputArg->getType().getCanonicalType();
     ArgType.removeLocalFastQualifiers(clang::Qualifiers::CVRMask);
     if (ArgType.getAsString() != TypeInfo) {

clang/lib/DPCT/RulesLang/APINamesMath.inc

@@ -104,7 +104,7 @@ ENTRY_RENAMED_SINGLE("sinhf", MapNames::getClNamespace(false, true) + "sinh")
 ENTRY_REWRITE("sinpif")
 ENTRY_RENAMED_SINGLE("sqrtf", MapNames::getClNamespace(false, true) + "sqrt")
 ENTRY_RENAMED_SINGLE("tanf", MapNames::getClNamespace(false, true) + "tan")
-ENTRY_RENAMED_SINGLE("tanhf", MapNames::getClNamespace(false, true) + "tanh")
+ENTRY_REWRITE("tanhf")
 ENTRY_RENAMED_SINGLE("tgammaf", MapNames::getClNamespace(false, true) + "tgamma")
 ENTRY_RENAMED_SINGLE("truncf", MapNames::getClNamespace(false, true) + "trunc")
 

clang/lib/DPCT/RulesLang/Math/RewriterSinglePrecisionMathematicalFunctions.cpp

@@ -295,6 +295,21 @@ RewriterMap dpct::createSinglePrecisionMathematicalFunctionsRewriterMap() {
                   "sinpif",
                   CALL(MapNames::getClNamespace() + "sinpi",
                        CAST_IF_NOT_SAME(makeLiteral("float"), ARG(0))))))
+      // tanhf
+      MATH_API_REWRITERS_V2(
+          "tanhf",
+          MATH_API_REWRITER_PAIR(
+              math::Tag::host_normal,
+              CALL_FACTORY_ENTRY(
+                  "tanhf",
+                  CALL(MapNames::getClNamespace() + "tanh",
+                       CAST_IF_NOT_SAME(makeLiteral("float"), ARG(0))))),
+          MATH_API_REWRITER_PAIR(
+              math::Tag::device_normal,
+              CALL_FACTORY_ENTRY(
+                  "tanhf",
+                  CALL(MapNames::getClNamespace() + "tanh",
+                       CAST_IF_NOT_SAME(makeLiteral("float"), ARG(0))))))
       // y0f
       MATH_API_REWRITER_DEVICE(
           "y0f",

clang/test/dpct/math/cuda-math-intrinsics-cuda8.0-not-support.cu

@@ -26,4 +26,16 @@ __global__ void kernelFuncHalf2() {
   h2_2 = __h2div(h2, h2_1);
 }
 
+template <typename T> __global__ void foo1(T x) {
+  // CHECK: T t = (T)sycl::tanh((float)x);
+  T t = (T)tanhf(x);
+}
+
+void foo2() {
+  float f;
+  half h;
+  foo1<<<1, 1>>>(f);
+  foo1<<<1, 1>>>(h);
+}
+
 int main() { return 0; }