Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

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

@@ -1,82 +0,0 @@
-; RUN: llc -verify-machineinstrs -mtriple=armv7k-apple-ios8.0 -mcpu=cortex-a7 -o - %s | FileCheck --check-prefix=CHECK --check-prefix=OPT --check-prefix=TAILCALL %s
-; RUN: llc -O0 -verify-machineinstrs -mtriple=armv7k-apple-ios8.0 -mcpu=cortex-a7 -o - %s | FileCheck %s
-
-; RUN: llc -verify-machineinstrs -mtriple=armv7-apple-ios -o - %s | FileCheck --check-prefix=CHECK --check-prefix=OPT %s
-; RUN: llc -O0 -verify-machineinstrs -mtriple=armv7-apple-ios -o - %s | FileCheck %s
-
-; Parameter with swiftself should be allocated to r10.
-; CHECK-LABEL: swiftself_param:
-; CHECK: mov r0, r10
-define i8 *@swiftself_param(i8* swiftself %addr0) "no-frame-pointer-elim"="true" {
-    ret i8 *%addr0
-}
-
-; Check that r10 is used to pass a swiftself argument.
-; CHECK-LABEL: call_swiftself:
-; CHECK: mov r10, r0
-; CHECK: bl {{_?}}swiftself_param
-define i8 *@call_swiftself(i8* %arg) "no-frame-pointer-elim"="true" {
-  %res = call i8 *@swiftself_param(i8* swiftself %arg)
-  ret i8 *%res
-}
-
-; r10 should be saved by the callee even if used for swiftself
-; CHECK-LABEL: swiftself_clobber:
-; CHECK: push {r10}
-; ...
-; CHECK: pop {r10}
-define i8 *@swiftself_clobber(i8* swiftself %addr0) "no-frame-pointer-elim"="true" {
-  call void asm sideeffect "", "~{r10}"()
-  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{{.*}}r10
-; OPT: bl {{_?}}swiftself_param
-; OPT-NOT: mov{{.*}}r10
-; OPT-NEXT: bl {{_?}}swiftself_param
-define void @swiftself_passthrough(i8* swiftself %addr0) "no-frame-pointer-elim"="true" {
-  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:
-; TAILCALL: b {{_?}}swiftself_param
-; TAILCALL-NOT: pop
-define i8* @swiftself_tail(i8* swiftself %addr0) "no-frame-pointer-elim"="true" {
-  call void asm sideeffect "", "~{r10}"()
-  %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: mov r10, r0
-; CHECK: bl {{_?}}swiftself_param
-; CHECK: pop
-define i8* @swiftself_notail(i8* swiftself %addr0, i8* %addr1) nounwind "no-frame-pointer-elim"="true" {
-  %res = tail call i8* @swiftself_param(i8* swiftself %addr1)
-  ret i8* %res
-}
-
-; We cannot pretend that 'r0' is alive across the thisreturn_attribute call as
-; we normally would. We marked the first parameter with swiftself which means it
-; will no longer be passed in r0.
-declare swiftcc i8* @thisreturn_attribute(i8* returned swiftself)
-; OPT-LABEL: swiftself_nothisreturn:
-; OPT-DAG: mov [[CSREG:r[1-9].*]], r0
-; OPT-DAG: ldr r10, [r10]
-; OPT: bl  {{_?}}thisreturn_attribute
-; OPT: str r0, {{\[}}[[CSREG]]
-define hidden swiftcc void @swiftself_nothisreturn(i8** noalias nocapture sret, i8** noalias nocapture readonly swiftself) {
-entry:
-  %2 = load i8*, i8** %1, align 8
-  %3 = tail call swiftcc i8* @thisreturn_attribute(i8* swiftself %2)
-  store i8* %3, i8** %0, align 8
-  ret void
-}