Imported Upstream version 5.18.0.161

Former-commit-id: 4db48158d3a35497b8f118ab21b5f08ac3d86d98

external/llvm/test/CodeGen/X86/inalloca.ll

@@ -0,0 +1,65 @@
+; RUN: llc < %s -mtriple=i686-pc-win32 | FileCheck %s
+
+%Foo = type { i32, i32 }
+
+declare void @f(%Foo* inalloca %b)
+
+define void @a() {
+; CHECK-LABEL: _a:
+entry:
+  %b = alloca inalloca %Foo
+; CHECK: pushl   %eax
+; CHECK: pushl   %eax
+  %f1 = getelementptr %Foo, %Foo* %b, i32 0, i32 0
+  %f2 = getelementptr %Foo, %Foo* %b, i32 0, i32 1
+  store i32 13, i32* %f1
+  store i32 42, i32* %f2
+; CHECK: movl %esp, %eax
+; CHECK: movl    $13, (%eax)
+; CHECK: movl    $42, 4(%eax)
+  call void @f(%Foo* inalloca %b)
+; CHECK: calll   _f
+  ret void
+}
+
+declare void @inreg_with_inalloca(i32 inreg %a, %Foo* inalloca %b)
+
+define void @b() {
+; CHECK-LABEL: _b:
+entry:
+  %b = alloca inalloca %Foo
+; CHECK: pushl   %eax
+; CHECK: pushl   %eax
+  %f1 = getelementptr %Foo, %Foo* %b, i32 0, i32 0
+  %f2 = getelementptr %Foo, %Foo* %b, i32 0, i32 1
+  store i32 13, i32* %f1
+  store i32 42, i32* %f2
+; CHECK: movl %esp, %eax
+; CHECK: movl    $13, (%eax)
+; CHECK: movl    $42, 4(%eax)
+  call void @inreg_with_inalloca(i32 inreg 1, %Foo* inalloca %b)
+; CHECK: movl    $1, %eax
+; CHECK: calll   _inreg_with_inalloca
+  ret void
+}
+
+declare x86_thiscallcc void @thiscall_with_inalloca(i8* %a, %Foo* inalloca %b)
+
+define void @c() {
+; CHECK-LABEL: _c:
+entry:
+  %b = alloca inalloca %Foo
+; CHECK: pushl   %eax
+; CHECK: pushl   %eax
+  %f1 = getelementptr %Foo, %Foo* %b, i32 0, i32 0
+  %f2 = getelementptr %Foo, %Foo* %b, i32 0, i32 1
+  store i32 13, i32* %f1
+  store i32 42, i32* %f2
+; CHECK: movl %esp, %eax
+; CHECK-DAG: movl    $13, (%eax)
+; CHECK-DAG: movl    $42, 4(%eax)
+  call x86_thiscallcc void @thiscall_with_inalloca(i8* null, %Foo* inalloca %b)
+; CHECK-DAG: xorl    %ecx, %ecx
+; CHECK: calll   _thiscall_with_inalloca
+  ret void
+}