37 lines
1.4 KiB
LLVM
37 lines
1.4 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-pc-windows-msvc | FileCheck %s -check-prefix=X64
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; Control Flow Guard is currently only available on Windows
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; Test that Control Flow Guard checks are correctly added for x86_64 vector calls.
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define void @func_cf_vector_x64(ptr %0, ptr %1) #0 {
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entry:
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%2 = alloca %struct.HVA, align 8
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call void @llvm.memcpy.p0.p0.i64(ptr align 8 %2, ptr align 8 %1, i64 32, i1 false)
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%3 = load %struct.HVA, ptr %2, align 8
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call x86_vectorcallcc void %0(%struct.HVA inreg %3)
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ret void
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; X64-LABEL: func_cf_vector_x64
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; X64: movq %rcx, %rax
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; X64: movups (%rdx), %xmm0
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; X64: movups 16(%rdx), %xmm1
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; X64: movaps %xmm0, 32(%rsp)
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; X64: movaps %xmm1, 48(%rsp)
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; X64: movsd 32(%rsp), %xmm0 # xmm0 = mem[0],zero
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; X64: movsd 40(%rsp), %xmm1 # xmm1 = mem[0],zero
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; X64: movsd 48(%rsp), %xmm2 # xmm2 = mem[0],zero
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; X64: movsd 56(%rsp), %xmm3 # xmm3 = mem[0],zero
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; X64: callq *__guard_dispatch_icall_fptr(%rip)
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; X64-NOT: callq
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}
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attributes #0 = { "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" }
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%struct.HVA = type { double, double, double, double }
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declare void @llvm.memcpy.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1 immarg) #1
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attributes #1 = { argmemonly nounwind willreturn }
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!llvm.module.flags = !{!0}
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!0 = !{i32 2, !"cfguard", i32 2}
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