derek.holloway
7502bf64a4
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126 lines
5.0 KiB
LLVM
126 lines
5.0 KiB
LLVM
; RUN: opt -S -passes=rewrite-statepoints-for-gc < %s | FileCheck %s
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; CHECK: declare ptr addrspace(1) @some_function_ret_deref()
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; CHECK: define ptr addrspace(1) @test_deref_arg(ptr addrspace(1) %a)
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; CHECK: define ptr addrspace(1) @test_deref_or_null_arg(ptr addrspace(1) %a)
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; CHECK: define ptr addrspace(1) @test_noalias_arg(ptr addrspace(1) %a)
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declare void @foo()
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declare ptr addrspace(1) @some_function() "gc-leaf-function"
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declare void @some_function_consumer(ptr addrspace(1)) "gc-leaf-function"
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declare dereferenceable(4) ptr addrspace(1) @some_function_ret_deref() "gc-leaf-function"
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declare noalias ptr addrspace(1) @some_function_ret_noalias() "gc-leaf-function"
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define ptr addrspace(1) @test_deref_arg(ptr addrspace(1) dereferenceable(4) %a) gc "statepoint-example" {
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entry:
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %a
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}
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define ptr addrspace(1) @test_deref_or_null_arg(ptr addrspace(1) dereferenceable_or_null(4) %a) gc "statepoint-example" {
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entry:
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %a
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}
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define ptr addrspace(1) @test_noalias_arg(ptr addrspace(1) noalias %a) gc "statepoint-example" {
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entry:
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %a
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}
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define ptr addrspace(1) @test_deref_retval() gc "statepoint-example" {
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; CHECK-LABEL: @test_deref_retval(
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; CHECK: %a = call ptr addrspace(1) @some_function()
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entry:
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%a = call dereferenceable(4) ptr addrspace(1) @some_function()
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %a
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}
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define ptr addrspace(1) @test_deref_or_null_retval() gc "statepoint-example" {
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; CHECK-LABEL: @test_deref_or_null_retval(
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; CHECK: %a = call ptr addrspace(1) @some_function()
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entry:
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%a = call dereferenceable_or_null(4) ptr addrspace(1) @some_function()
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %a
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}
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define ptr addrspace(1) @test_noalias_retval() gc "statepoint-example" {
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; CHECK-LABEL: @test_noalias_retval(
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; CHECK: %a = call ptr addrspace(1) @some_function()
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entry:
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%a = call noalias ptr addrspace(1) @some_function()
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %a
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}
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define i8 @test_md(ptr addrspace(1) %ptr) gc "statepoint-example" {
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; CHECK-LABEL: @test_md(
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; CHECK: %tmp = load i8, ptr addrspace(1) %ptr, align 1, !tbaa [[TAG_old:!.*]]
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entry:
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%tmp = load i8, ptr addrspace(1) %ptr, !tbaa !0
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret i8 %tmp
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}
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; Same as test_md() above, but with new-format TBAA metadata.
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define i8 @test_md_new(ptr addrspace(1) %ptr) gc "statepoint-example" {
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; CHECK-LABEL: @test_md_new(
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; CHECK: %tmp = load i8, ptr addrspace(1) %ptr, align 1, !tbaa [[TAG_new:!.*]]
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entry:
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%tmp = load i8, ptr addrspace(1) %ptr, !tbaa !4
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret i8 %tmp
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}
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define ptr addrspace(1) @test_decl_only_attribute(ptr addrspace(1) %ptr) gc "statepoint-example" {
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; CHECK-LABEL: @test_decl_only_attribute(
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; No change here, but the prototype of some_function_ret_deref should have changed.
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; CHECK: call ptr addrspace(1) @some_function_ret_deref()
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entry:
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%a = call ptr addrspace(1) @some_function_ret_deref()
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %a
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}
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define ptr addrspace(1) @test_decl_only_noalias(ptr addrspace(1) %ptr) gc "statepoint-example" {
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; CHECK-LABEL: @test_decl_only_noalias(
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; No change here, but the prototype of some_function_ret_noalias should have changed.
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; CHECK: call ptr addrspace(1) @some_function_ret_noalias()
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entry:
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%a = call ptr addrspace(1) @some_function_ret_noalias()
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %a
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}
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define ptr addrspace(1) @test_callsite_arg_attribute(ptr addrspace(1) %ptr) gc "statepoint-example" {
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; CHECK-LABEL: @test_callsite_arg_attribute(
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; CHECK: call void @some_function_consumer(ptr addrspace(1) %ptr)
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entry:
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call void @some_function_consumer(ptr addrspace(1) dereferenceable(4) noalias %ptr)
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call void @foo() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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ret ptr addrspace(1) %ptr
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}
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!0 = !{!1, !2, i64 0, i64 1} ; TAG_old
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!1 = !{!"type_base_old", !2, i64 0}
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!2 = !{!"type_access_old", !3}
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!3 = !{!"root"}
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!4 = !{!5, !6, i64 0, i64 1, i64 1} ; TAG_new
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!5 = !{!3, i64 1, !"type_base_new", !6, i64 0, i64 1}
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!6 = !{!3, i64 1, !"type_access_new"}
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; CHECK-DAG: [[ROOT:!.*]] = !{!"root"}
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; CHECK-DAG: [[TYPE_access_old:!.*]] = !{!"type_access_old", [[ROOT]]}
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; CHECK-DAG: [[TYPE_base_old:!.*]] = !{!"type_base_old", [[TYPE_access_old]], i64 0}
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; CHECK-DAG: [[TAG_old]] = !{[[TYPE_base_old]], [[TYPE_access_old]], i64 0}
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; CHECK-DAG: [[TYPE_access_new:!.*]] = !{[[ROOT]], i64 1, !"type_access_new"}
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; CHECK-DAG: [[TYPE_base_new:!.*]] = !{[[ROOT]], i64 1, !"type_base_new", [[TYPE_access_new]], i64 0, i64 1}
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; CHECK-DAG: [[TAG_new]] = !{[[TYPE_base_new]], [[TYPE_access_new]], i64 0, i64 1}
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