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30 lines
916 B
LLVM
30 lines
916 B
LLVM
; RUN: llc < %s -march=x86-64 | FileCheck %s
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%struct.obj = type { i64 }
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define void @_Z7releaseP3obj(%struct.obj* nocapture %o) nounwind uwtable ssp {
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entry:
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; CHECK: decq (%{{rdi|rcx}})
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; CHECK-NEXT: je
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%refcnt = getelementptr inbounds %struct.obj* %o, i64 0, i32 0
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%0 = load i64* %refcnt, align 8, !tbaa !0
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%dec = add i64 %0, -1
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store i64 %dec, i64* %refcnt, align 8, !tbaa !0
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%tobool = icmp eq i64 %dec, 0
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br i1 %tobool, label %if.end, label %return
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if.end: ; preds = %entry
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%1 = bitcast %struct.obj* %o to i8*
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tail call void @free(i8* %1)
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br label %return
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return: ; preds = %entry, %if.end
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ret void
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}
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declare void @free(i8* nocapture) nounwind
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!0 = metadata !{metadata !"long", metadata !1}
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!1 = metadata !{metadata !"omnipotent char", metadata !2}
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!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
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