Imported Upstream version 5.18.0.234

Former-commit-id: 8071ec1a8c5eaa9be24b41745add19297608001f

external/llvm/test/CodeGen/AArch64/tailcall-explicit-sret.ll

@@ -1,106 +0,0 @@
-; RUN: llc < %s -mtriple arm64-apple-darwin -aarch64-enable-ldst-opt=false -asm-verbose=false -disable-post-ra | FileCheck %s
-; Disable the load/store optimizer to avoid having LDP/STPs and simplify checks.
-
-target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
-
-; Check that we don't try to tail-call with a non-forwarded sret parameter.
-declare void @test_explicit_sret(i1024* sret) #0
-
-; This is the only OK case, where we forward the explicit sret pointer.
-
-; CHECK-LABEL: _test_tailcall_explicit_sret:
-; CHECK-NEXT: b _test_explicit_sret
-define void @test_tailcall_explicit_sret(i1024* sret %arg) #0 {
-  tail call void @test_explicit_sret(i1024* %arg)
-  ret void
-}
-
-; CHECK-LABEL: _test_call_explicit_sret:
-; CHECK-NOT: mov  x8
-; CHECK: bl _test_explicit_sret
-; CHECK: ret
-define void @test_call_explicit_sret(i1024* sret %arg) #0 {
-  call void @test_explicit_sret(i1024* %arg)
-  ret void
-}
-
-; CHECK-LABEL: _test_tailcall_explicit_sret_alloca_unused:
-; CHECK: mov  x8, sp
-; CHECK-NEXT: bl _test_explicit_sret
-; CHECK: ret
-define void @test_tailcall_explicit_sret_alloca_unused() #0 {
-  %l = alloca i1024, align 8
-  tail call void @test_explicit_sret(i1024* %l)
-  ret void
-}
-
-; CHECK-LABEL: _test_tailcall_explicit_sret_alloca_dummyusers:
-; CHECK: ldr [[PTRLOAD1:q[0-9]+]], [x0]
-; CHECK: str [[PTRLOAD1]], [sp]
-; CHECK: mov  x8, sp
-; CHECK-NEXT: bl _test_explicit_sret
-; CHECK: ret
-define void @test_tailcall_explicit_sret_alloca_dummyusers(i1024* %ptr) #0 {
-  %l = alloca i1024, align 8
-  %r = load i1024, i1024* %ptr, align 8
-  store i1024 %r, i1024* %l, align 8
-  tail call void @test_explicit_sret(i1024* %l)
-  ret void
-}
-
-; This is too conservative, but doesn't really happen in practice.
-
-; CHECK-LABEL: _test_tailcall_explicit_sret_gep:
-; CHECK: add  x8, x0, #128
-; CHECK-NEXT: bl _test_explicit_sret
-; CHECK: ret
-define void @test_tailcall_explicit_sret_gep(i1024* %ptr) #0 {
-  %ptr2 = getelementptr i1024, i1024* %ptr, i32 1
-  tail call void @test_explicit_sret(i1024* %ptr2)
-  ret void
-}
-
-; CHECK-LABEL: _test_tailcall_explicit_sret_alloca_returned:
-; CHECK: mov  x[[CALLERX8NUM:[0-9]+]], x8
-; CHECK: mov  x8, sp
-; CHECK-NEXT: bl _test_explicit_sret
-; CHECK-NEXT: ldr [[CALLERSRET1:q[0-9]+]], [sp]
-; CHECK: str [[CALLERSRET1:q[0-9]+]], [x[[CALLERX8NUM]]]
-; CHECK: ret
-define i1024 @test_tailcall_explicit_sret_alloca_returned() #0 {
-  %l = alloca i1024, align 8
-  tail call void @test_explicit_sret(i1024* %l)
-  %r = load i1024, i1024* %l, align 8
-  ret i1024 %r
-}
-
-; CHECK-LABEL: _test_indirect_tailcall_explicit_sret_nosret_arg:
-; CHECK-DAG: mov  x[[CALLERX8NUM:[0-9]+]], x8
-; CHECK-DAG: mov  [[FPTR:x[0-9]+]], x0
-; CHECK: mov  x0, sp
-; CHECK-NEXT: blr [[FPTR]]
-; CHECK: ldr [[CALLERSRET1:q[0-9]+]], [sp]
-; CHECK: str [[CALLERSRET1:q[0-9]+]], [x[[CALLERX8NUM]]]
-; CHECK: ret
-define void @test_indirect_tailcall_explicit_sret_nosret_arg(i1024* sret %arg, void (i1024*)* %f) #0 {
-  %l = alloca i1024, align 8
-  tail call void %f(i1024* %l)
-  %r = load i1024, i1024* %l, align 8
-  store i1024 %r, i1024* %arg, align 8
-  ret void
-}
-
-; CHECK-LABEL: _test_indirect_tailcall_explicit_sret_:
-; CHECK: mov  x[[CALLERX8NUM:[0-9]+]], x8
-; CHECK: mov  x8, sp
-; CHECK-NEXT: blr x0
-; CHECK: ldr [[CALLERSRET1:q[0-9]+]], [sp]
-; CHECK: str [[CALLERSRET1:q[0-9]+]], [x[[CALLERX8NUM]]]
-; CHECK: ret
-define void @test_indirect_tailcall_explicit_sret_(i1024* sret %arg, i1024 ()* %f) #0 {
-  %ret = tail call i1024 %f()
-  store i1024 %ret, i1024* %arg, align 8
-  ret void
-}
-
-attributes #0 = { nounwind }