[X86] Add test case for D60801. NFC

llvm-svn: 358784

diff --git a/llvm/test/CodeGen/X86/arg-copy-elide-win64.ll b/llvm/test/CodeGen/X86/arg-copy-elide-win64.ll
new file mode 100644 (file)
index 0000000..434b678
--- /dev/null
+++ b/llvm/test/CodeGen/X86/arg-copy-elide-win64.ll
@@ -0,0 +1,49 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=x86_64-windows-msvc -mattr=avx2 | FileCheck %s
+
+; Make sure we don't try to copy elide these arguments since they will be
+; passed indirectly.
+define void @baz(<16 x double> %arg, <16 x double> %arg1) #0 {
+; CHECK-LABEL: baz:
+; CHECK:       # %bb.0: # %bb
+; CHECK-NEXT:    pushq %rbp
+; CHECK-NEXT:    subq $368, %rsp # imm = 0x170
+; CHECK-NEXT:    leaq {{[0-9]+}}(%rsp), %rbp
+; CHECK-NEXT:    vmovaps %xmm7, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
+; CHECK-NEXT:    vmovaps %xmm6, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
+; CHECK-NEXT:    andq $-128, %rsp
+; CHECK-NEXT:    movq 288(%rbp), %rax
+; CHECK-NEXT:    movq 320(%rbp), %r10
+; CHECK-NEXT:    vmovaps (%rax), %ymm0
+; CHECK-NEXT:    vmovaps (%r10), %ymm1
+; CHECK-NEXT:    movq 352(%rbp), %rax
+; CHECK-NEXT:    vmovaps (%rax), %ymm2
+; CHECK-NEXT:    movq 384(%rbp), %rax
+; CHECK-NEXT:    vmovaps (%rax), %ymm3
+; CHECK-NEXT:    vmovaps (%rcx), %ymm4
+; CHECK-NEXT:    vmovaps (%rdx), %ymm5
+; CHECK-NEXT:    vmovaps (%r8), %ymm6
+; CHECK-NEXT:    vmovaps (%r9), %ymm7
+; CHECK-NEXT:    vmovaps %ymm7, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    vmovaps %ymm6, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    vmovaps %ymm5, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    vmovaps %ymm4, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    vmovaps %ymm3, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    vmovaps %ymm2, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    vmovaps %ymm1, {{[0-9]+}}(%rsp)
+; CHECK-NEXT:    vmovaps %ymm0, (%rsp)
+; CHECK-NEXT:    vmovaps {{[-0-9]+}}(%r{{[sb]}}p), %xmm6 # 16-byte Reload
+; CHECK-NEXT:    vmovaps {{[-0-9]+}}(%r{{[sb]}}p), %xmm7 # 16-byte Reload
+; CHECK-NEXT:    leaq 240(%rbp), %rsp
+; CHECK-NEXT:    popq %rbp
+; CHECK-NEXT:    vzeroupper
+; CHECK-NEXT:    retq
+bb:
+  %tmp = alloca <16 x double>
+  %tmp2 = alloca <16 x double>
+  store <16 x double> %arg, <16 x double>* %tmp
+  store <16 x double> %arg1, <16 x double>* %tmp2
+  ret void
+}
+
+attributes #0 = { nounwind }