================
@@ -110,6 +110,22 @@ void SPIRV64TargetInfo::getTargetDefines(const LangOptions
&Opts,
DefineStd(Builder, "SPIRV64", Opts);
}
+bool BaseSPIRTargetInfo::initFeatureMap(
+ llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
+ const std::vector<std::string> &FeaturesVec) const {
+ // When the host predefines _M_X64, MSVC STL headers use always_inline _mm_*
+ // intrinsics, which require sse/sse2 in the device feature set.
+ if (const TargetInfo *Host = getHostTarget()) {
+ const llvm::Triple &HT = Host->getTriple();
+ if (HT.isWindowsMSVCEnvironment() &&
+ (HT.getArch() == llvm::Triple::x86_64 || HT.isWindowsArm64EC())) {
----------------
AaronBallman wrote:
What should happen if the user explicitly disables SSE2 features from the
command line? Won't this silently override that?
https://github.com/llvm/llvm-project/pull/227665
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