forked from OSchip/llvm-project
38 lines
2.4 KiB
LLVM
38 lines
2.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -rewrite-statepoints-for-gc -S 2>&1 | FileCheck %s
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; RUN: opt < %s -passes=rewrite-statepoints-for-gc -S 2>&1 | FileCheck %s
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declare i1 @runtime_value() "gc-leaf-function"
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; derived %next base %base_obj
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define void @maybe_GEP(i64 addrspace(1)* %base_obj) gc "statepoint-example" {
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; CHECK-LABEL: @maybe_GEP(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label [[LOOP:%.*]]
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; CHECK: loop:
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; CHECK-NEXT: [[DOT0:%.*]] = phi i64 addrspace(1)* [ [[BASE_OBJ:%.*]], [[ENTRY:%.*]] ], [ [[BASE_OBJ_RELOCATED_CASTED:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[CURRENT:%.*]] = phi i64 addrspace(1)* [ [[BASE_OBJ]], [[ENTRY]] ], [ [[NEXT_RELOCATED_CASTED:%.*]], [[LOOP]] ]
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; CHECK-NEXT: [[CONDITION:%.*]] = call i1 @runtime_value()
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; CHECK-NEXT: [[MAYBE_NEXT:%.*]] = getelementptr i64, i64 addrspace(1)* [[CURRENT]], i32 1
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; CHECK-NEXT: [[NEXT:%.*]] = select i1 [[CONDITION]], i64 addrspace(1)* [[MAYBE_NEXT]], i64 addrspace(1)* [[CURRENT]]
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; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @do_safepoint, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0), "gc-live"(i64 addrspace(1)* [[NEXT]], i64 addrspace(1)* [[DOT0]]) ]
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; CHECK-NEXT: [[NEXT_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 0)
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; CHECK-NEXT: [[NEXT_RELOCATED_CASTED]] = bitcast i8 addrspace(1)* [[NEXT_RELOCATED]] to i64 addrspace(1)*
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; CHECK-NEXT: [[BASE_OBJ_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 1)
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; CHECK-NEXT: [[BASE_OBJ_RELOCATED_CASTED]] = bitcast i8 addrspace(1)* [[BASE_OBJ_RELOCATED]] to i64 addrspace(1)*
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; CHECK-NEXT: br label [[LOOP]]
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;
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entry:
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br label %loop
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loop: ; preds = %loop, %entry
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%current = phi i64 addrspace(1)* [ %base_obj, %entry ], [ %next, %loop ]
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%condition = call i1 @runtime_value()
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%maybe_next = getelementptr i64, i64 addrspace(1)* %current, i32 1
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%next = select i1 %condition, i64 addrspace(1)* %maybe_next, i64 addrspace(1)* %current
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call void @do_safepoint() [ "deopt"(i32 0, i32 -1, i32 0, i32 0, i32 0) ]
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br label %loop
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}
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declare void @do_safepoint()
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