1; RUN: llc < %s -mtriple=i686-pc-windows-msvc | FileCheck %s -check-prefix=X32 2; Control Flow Guard is currently only available on Windows 3 4 5; Test that Control Flow Guard checks are correctly added for x86 vector calls. 6define void @func_cf_vector_x86(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.i32(i8* align 8 %3, i8* align 8 %4, i32 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 ; X32-LABEL: func_cf_vector_x86 17 ; X32: movl 12(%ebp), %eax 18 ; X32: movl 8(%ebp), %ecx 19 ; X32: movsd 24(%eax), %xmm4 # xmm4 = mem[0],zero 20 ; X32: movsd %xmm4, 24(%esp) 21 ; X32: movsd 16(%eax), %xmm5 # xmm5 = mem[0],zero 22 ; X32: movsd %xmm5, 16(%esp) 23 ; X32: movsd (%eax), %xmm6 # xmm6 = mem[0],zero 24 ; X32: movsd 8(%eax), %xmm7 # xmm7 = mem[0],zero 25 ; X32: movsd %xmm7, 8(%esp) 26 ; X32: movsd %xmm6, (%esp) 27 ; X32: calll *___guard_check_icall_fptr 28 ; X32: movaps %xmm6, %xmm0 29 ; X32: movaps %xmm7, %xmm1 30 ; X32: movaps %xmm5, %xmm2 31 ; X32: movaps %xmm4, %xmm3 32 ; X32: calll *%ecx 33} 34attributes #0 = { "target-cpu"="pentium4" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" } 35 36%struct.HVA = type { double, double, double, double } 37 38declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i1 immarg) #1 39attributes #1 = { argmemonly nounwind willreturn } 40 41 42!llvm.module.flags = !{!0} 43!0 = !{i32 2, !"cfguard", i32 2} 44