Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

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

@@ -1,62 +0,0 @@
-; RUN: llc -verify-machineinstrs -mtriple=x86_64-unknown-unknown -o - %s | FileCheck --check-prefix=CHECK --check-prefix=OPT %s
-; RUN: llc -O0 -verify-machineinstrs -mtriple=x86_64-unknown-unknown -o - %s | FileCheck %s
-
-; Parameter with swiftself should be allocated to r13.
-; CHECK-LABEL: swiftself_param:
-; CHECK: movq %r13, %rax
-define i8 *@swiftself_param(i8* swiftself %addr0) {
-    ret i8 *%addr0
-}
-
-; Check that r13 is used to pass a swiftself argument.
-; CHECK-LABEL: call_swiftself:
-; CHECK: movq %rdi, %r13
-; CHECK: callq {{_?}}swiftself_param
-define i8 *@call_swiftself(i8* %arg) {
-  %res = call i8 *@swiftself_param(i8* swiftself %arg)
-  ret i8 *%res
-}
-
-; r13 should be saved by the callee even if used for swiftself
-; CHECK-LABEL: swiftself_clobber:
-; CHECK: pushq %r13
-; ...
-; CHECK: popq %r13
-define i8 *@swiftself_clobber(i8* swiftself %addr0) {
-  call void asm sideeffect "nop", "~{r13}"()
-  ret i8 *%addr0
-}
-
-; Demonstrate that we do not need any movs when calling multiple functions
-; with swiftself argument.
-; CHECK-LABEL: swiftself_passthrough:
-; OPT-NOT: mov{{.*}}r13
-; OPT: callq {{_?}}swiftself_param
-; OPT-NOT: mov{{.*}}r13
-; OPT-NEXT: callq {{_?}}swiftself_param
-define void @swiftself_passthrough(i8* swiftself %addr0) {
-  call i8 *@swiftself_param(i8* swiftself %addr0)
-  call i8 *@swiftself_param(i8* swiftself %addr0)
-  ret void
-}
-
-; We can use a tail call if the callee swiftself is the same as the caller one.
-; CHECK-LABEL: swiftself_tail:
-; OPT: jmp {{_?}}swiftself_param
-; OPT-NOT: ret
-define i8* @swiftself_tail(i8* swiftself %addr0) {
-  call void asm sideeffect "", "~{r13}"()
-  %res = tail call i8* @swiftself_param(i8* swiftself %addr0)
-  ret i8* %res
-}
-
-; We can not use a tail call if the callee swiftself is not the same as the
-; caller one.
-; CHECK-LABEL: swiftself_notail:
-; CHECK: movq %rdi, %r13
-; CHECK: callq {{_?}}swiftself_param
-; CHECK: retq
-define i8* @swiftself_notail(i8* swiftself %addr0, i8* %addr1) nounwind {
-  %res = tail call i8* @swiftself_param(i8* swiftself %addr1)
-  ret i8* %res
-}