1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
; 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}
|
