} else if (VA.isRegLoc()) {
RegsToPass.push_back(std::make_pair(VA.getLocReg(), Arg));
if (isVarArg && IsWin64) {
+ if (!Subtarget.hasSSE1())
+ errorUnsupported(
+ DAG, dl, "Win64 ABI varargs functions require SSE to be enabled");
// Win64 ABI requires argument XMM reg to be copied to the corresponding
// shadow reg if callee is a varargs function.
unsigned ShadowReg = 0;
--- /dev/null
+; RUN: not --crash llc %s -mattr="-sse" 2>&1 | FileCheck %s
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-pc-windows-macho"
+
+; Function Attrs: noimplicitfloat noinline noredzone nounwind optnone
+define void @crash() #0 {
+ call void (i32*, ...) @func(i32* null, double undef)
+ ret void
+}
+; CHECK: in function crash void (): Win64 ABI varargs functions require SSE to be enabled
+; Function Attrs: noimplicitfloat noredzone
+declare void @func(i32*, ...)
+
+attributes #0 = { "target-cpu"="x86-64" "target-features"="-sse"}
+
+