1 files changed, 43 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/cfguard-x86-vectorcall.ll b/llvm/test/CodeGen/X86/cfguard-x86-vectorcall.ll
new file mode 100644
index 00000000000..0f31f5ba4b6
--- /dev/null
+++ b/llvm/test/CodeGen/X86/cfguard-x86-vectorcall.ll
@@ -0,0 +1,43 @@
+; RUN: llc < %s -mtriple=i686-pc-windows-msvc | FileCheck %s -check-prefix=X32
+; Control Flow Guard is currently only available on Windows
+
+
+; Test that Control Flow Guard checks are correctly added for x86 vector calls.
+define void @func_cf_vector_x86(void (%struct.HVA)* %0, %struct.HVA* %1) #0 {
+entry:
+  %2 = alloca %struct.HVA, align 8
+  %3 = bitcast %struct.HVA* %2 to i8*
+  %4 = bitcast %struct.HVA* %1 to i8*
+  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %3, i8* align 8 %4, i32 32, i1 false)
+  %5 = load %struct.HVA, %struct.HVA* %2, align 8
+  call x86_vectorcallcc void %0(%struct.HVA inreg %5)
+  ret void
+
+  ; X32-LABEL: func_cf_vector_x86
+  ; X32: 	     movl 12(%ebp), %eax
+  ; X32: 	     movl 8(%ebp), %ecx
+  ; X32: 	     movsd 24(%eax), %xmm4         # xmm4 = mem[0],zero
+  ; X32: 	     movsd %xmm4, 24(%esp)
+  ; X32: 	     movsd 16(%eax), %xmm5         # xmm5 = mem[0],zero
+  ; X32: 	     movsd %xmm5, 16(%esp)
+  ; X32: 	     movsd (%eax), %xmm6           # xmm6 = mem[0],zero
+  ; X32: 	     movsd 8(%eax), %xmm7          # xmm7 = mem[0],zero
+  ; X32: 	     movsd %xmm7, 8(%esp)
+  ; X32: 	     movsd %xmm6, (%esp)
+  ; X32: 	     calll *___guard_check_icall_fptr
+  ; X32: 	     movaps %xmm6, %xmm0
+  ; X32: 	     movaps %xmm7, %xmm1
+  ; X32: 	     movaps %xmm5, %xmm2
+  ; X32: 	     movaps %xmm4, %xmm3
+  ; X32: 	     calll  *%ecx
+}
+attributes #0 = { "target-cpu"="pentium4" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" }
+
+%struct.HVA = type { double, double, double, double }
+
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1 immarg) #1
+attributes #1 = { argmemonly nounwind willreturn }
+
+
+!llvm.module.flags = !{!0}
+!0 = !{i32 2, !"cfguard", i32 2}