15 lines
839 B
LLVM
15 lines
839 B
LLVM
; RUN: opt < %s -passes=rewrite-statepoints-for-gc -S 2>&1 | FileCheck %s
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define ptr addrspace(1) @test(ptr %a, ptr addrspace(1) %b) gc "statepoint-example" {
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; CHECK-LABEL: @test
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; CHECK-NEXT: [[RES:%.*]] = atomicrmw xchg ptr %a, ptr addrspace(1) %b seq_cst
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; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "gc-live"(ptr addrspace(1) [[RES]]) ]
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; CHECK-NEXT: [[RES_RELOCATED:%.*]] = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token [[STATEPOINT_TOKEN]], i32 0, i32 0)
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; CHECK-NEXT: ret ptr addrspace(1) [[RES_RELOCATED]]
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%res = atomicrmw xchg ptr %a, ptr addrspace(1) %b seq_cst
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call void @foo()
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ret ptr addrspace(1) %res
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}
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declare void @foo()
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