1; RUN: llc < %s -mtriple=x86_64-pc-windows-msvc | FileCheck %s -check-prefix=X64 2; Control Flow Guard is currently only available on Windows 3 4 5; Test that Control Flow Guard checks are correctly added for x86_64 vector calls. 6define void @func_cf_vector_x64(void (%struct.HVA)* %0, %struct.HVA* %1) #0 { 7entry: 8 %2 = alloca %struct.HVA, align 8 9 %3 = bitcast %struct.HVA* %2 to i8* 10 %4 = bitcast %struct.HVA* %1 to i8* 11 call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %3, i8* align 8 %4, i64 32, i1 false) 12 %5 = load %struct.HVA, %struct.HVA* %2, align 8 13 call x86_vectorcallcc void %0(%struct.HVA inreg %5) 14 ret void 15 16 ; X64-LABEL: func_cf_vector_x64 17 ; X64: movq %rcx, %rax 18 ; X64: movups (%rdx), %xmm0 19 ; X64: movups 16(%rdx), %xmm1 20 ; X64: movaps %xmm0, 32(%rsp) 21 ; X64: movaps %xmm1, 48(%rsp) 22 ; X64: movsd 32(%rsp), %xmm0 # xmm0 = mem[0],zero 23 ; X64: movsd 40(%rsp), %xmm1 # xmm1 = mem[0],zero 24 ; X64: movsd 48(%rsp), %xmm2 # xmm2 = mem[0],zero 25 ; X64: movsd 56(%rsp), %xmm3 # xmm3 = mem[0],zero 26 ; X64: callq *__guard_dispatch_icall_fptr(%rip) 27 ; X64-NOT: callq 28} 29attributes #0 = { "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" } 30 31%struct.HVA = type { double, double, double, double } 32 33declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i1 immarg) #1 34attributes #1 = { argmemonly nounwind willreturn } 35 36 37!llvm.module.flags = !{!0} 38!0 = !{i32 2, !"cfguard", i32 2} 39