| ; RUN: llc < %s -mtriple=x86_64-pc-windows-msvc | FileCheck %s -check-prefix=X64 |
| ; Control Flow Guard is currently only available on Windows |
| |
| |
| ; Test that Control Flow Guard checks are correctly added for x86_64 vector calls. |
| define void @func_cf_vector_x64(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.i64(i8* align 8 %3, i8* align 8 %4, i64 32, i1 false) |
| %5 = load %struct.HVA, %struct.HVA* %2, align 8 |
| call x86_vectorcallcc void %0(%struct.HVA inreg %5) |
| ret void |
| |
| ; X64-LABEL: func_cf_vector_x64 |
| ; X64: movq %rcx, %rax |
| ; X64: movups (%rdx), %xmm0 |
| ; X64: movups 16(%rdx), %xmm1 |
| ; X64: movaps %xmm0, 32(%rsp) |
| ; X64: movaps %xmm1, 48(%rsp) |
| ; X64: movsd 32(%rsp), %xmm0 # xmm0 = mem[0],zero |
| ; X64: movsd 40(%rsp), %xmm1 # xmm1 = mem[0],zero |
| ; X64: movsd 48(%rsp), %xmm2 # xmm2 = mem[0],zero |
| ; X64: movsd 56(%rsp), %xmm3 # xmm3 = mem[0],zero |
| ; X64: callq *__guard_dispatch_icall_fptr(%rip) |
| ; X64-NOT: callq |
| } |
| attributes #0 = { "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" } |
| |
| %struct.HVA = type { double, double, double, double } |
| |
| declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i1 immarg) #1 |
| attributes #1 = { argmemonly nounwind willreturn } |
| |
| |
| !llvm.module.flags = !{!0} |
| !0 = !{i32 2, !"cfguard", i32 2} |