[Driver] Check the environment version except wasm case. (#80783)

Add isWasm() check for here:
#78655 (comment)

Author: ZijunZhaoCCK

clang/lib/Driver/Driver.cpp

@@ -1443,16 +1443,18 @@ Compilation *Driver::BuildCompilation(ArrayRef<const char *> ArgList) {
   const ToolChain &TC = getToolChain(
       *UArgs, computeTargetTriple(*this, TargetTriple, *UArgs));
 
-  // Check if the environment version is valid.
+  // Check if the environment version is valid except wasm case.
   llvm::Triple Triple = TC.getTriple();
-  StringRef TripleVersionName = Triple.getEnvironmentVersionString();
-  StringRef TripleObjectFormat =
-      Triple.getObjectFormatTypeName(Triple.getObjectFormat());
-  if (Triple.getEnvironmentVersion().empty() && TripleVersionName != "" &&
-      TripleVersionName != TripleObjectFormat) {
-    Diags.Report(diag::err_drv_triple_version_invalid)
-        << TripleVersionName << TC.getTripleString();
-    ContainsError = true;
+  if (!Triple.isWasm()) {
+    StringRef TripleVersionName = Triple.getEnvironmentVersionString();
+    StringRef TripleObjectFormat =
+        Triple.getObjectFormatTypeName(Triple.getObjectFormat());
+    if (Triple.getEnvironmentVersion().empty() && TripleVersionName != "" &&
+        TripleVersionName != TripleObjectFormat) {
+      Diags.Report(diag::err_drv_triple_version_invalid)
+          << TripleVersionName << TC.getTripleString();
+      ContainsError = true;
+    }
   }
 
   // Report warning when arm64EC option is overridden by specified target

clang/test/Driver/android-version.cpp renamed to clang/test/Driver/invalid-version.cpp

@@ -14,3 +14,18 @@
 // RUN:   FileCheck --check-prefix=CHECK-TARGET %s
 
 // CHECK-TARGET: "aarch64-unknown-linux-android31"
+
+// RUN: not %clang --target=armv7-linux-gnuS -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-ERROR2 %s
+
+// CHECK-ERROR2: error: version 'S' in target triple 'armv7-unknown-linux-gnuS' is invalid
+
+// RUN: %clang --target=wasm32-unknown-wasi-preview2 -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-WASM %s
+
+// CHECK-WASM: "-triple" "wasm32-unknown-wasi-preview2"
+
+// RUN: %clang --target=wasm32-wasi-pthread -c %s -### 2>&1 | \
+// RUN:   FileCheck --check-prefix=CHECK-WASM1 %s
+
+// CHECK-WASM1: "-triple" "wasm32-unknown-wasi-pthread"