; CHECK: decq (%{{rdi|rcx}})
; CHECK-NEXT: je
%refcnt = getelementptr inbounds %struct.obj* %o, i64 0, i32 0
- %0 = load i64* %refcnt, align 8, !tbaa !0
+ %0 = load i64* %refcnt, align 8
%dec = add i64 %0, -1
- store i64 %dec, i64* %refcnt, align 8, !tbaa !0
+ store i64 %dec, i64* %refcnt, align 8
%tobool = icmp eq i64 %dec, 0
br i1 %tobool, label %if.end, label %return
entry:
; CHECK: decq
; CHECK-NOT: decq
-%0 = load i64* @c, align 8, !tbaa !0
+%0 = load i64* @c, align 8
%dec.i = add nsw i64 %0, -1
-store i64 %dec.i, i64* @c, align 8, !tbaa !0
+store i64 %dec.i, i64* @c, align 8
%tobool.i = icmp ne i64 %dec.i, 0
%lor.ext.i = zext i1 %tobool.i to i32
-store i32 %lor.ext.i, i32* @a, align 4, !tbaa !3
+store i32 %lor.ext.i, i32* @a, align 4
%call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([5 x i8]* @.str, i64 0, i64 0), i64 %dec.i) nounwind
ret i32 0
}
define i32 @test2() nounwind uwtable ssp {
entry:
; CHECK-NOT: decq ({{.*}})
-%0 = load i64* @c, align 8, !tbaa !0
+%0 = load i64* @c, align 8
%dec.i = add nsw i64 %0, -1
-store i64 %dec.i, i64* @c, align 8, !tbaa !0
+store i64 %dec.i, i64* @c, align 8
%tobool.i = icmp ne i64 %0, 0
%lor.ext.i = zext i1 %tobool.i to i32
-store i32 %lor.ext.i, i32* @a, align 4, !tbaa !3
+store i32 %lor.ext.i, i32* @a, align 4
%call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([5 x i8]* @.str, i64 0, i64 0), i64 %dec.i) nounwind
ret i32 0
}
declare void @free(i8* nocapture) nounwind
-!0 = metadata !{metadata !"long", metadata !1}
-!1 = metadata !{metadata !"omnipotent char", metadata !2}
-!2 = metadata !{metadata !"Simple C/C++ TBAA", null}
-!3 = metadata !{metadata !"int", metadata !1}
-
%struct.obj2 = type { i64, i32, i16, i8 }
declare void @other(%struct.obj2* ) nounwind;
return:
ret void
}
+
+; Deal with TokenFactor chain
+; rdar://11236106
+@foo = external global i64*, align 8
+
+define void @test3() nounwind ssp {
+entry:
+; CHECK-LABEL: test3:
+; CHECK: decq 16(%rax)
+ %0 = load i64** @foo, align 8
+ %arrayidx = getelementptr inbounds i64* %0, i64 2
+ %1 = load i64* %arrayidx, align 8
+ %dec = add i64 %1, -1
+ store i64 %dec, i64* %arrayidx, align 8
+ %cmp = icmp eq i64 %dec, 0
+ br i1 %cmp, label %if.then, label %if.end
+
+if.then:
+ tail call void @baz() nounwind
+ br label %if.end
+
+if.end:
+ ret void
+}
+
+declare void @baz()
+
+; Avoid creating a cycle in the DAG which would trigger an assert in the
+; scheduler.
+; PR12565
+; rdar://11451474
+@x = external global i32, align 4
+@y = external global i32, align 4
+@z = external global i32, align 4
+
+define void @test4() nounwind uwtable ssp {
+entry:
+ %0 = load i32* @x, align 4
+ %1 = load i32* @y, align 4
+ %dec = add nsw i32 %1, -1
+ store i32 %dec, i32* @y, align 4
+ %tobool.i = icmp ne i32 %dec, 0
+ %cond.i = select i1 %tobool.i, i32 %0, i32 0
+ store i32 %cond.i, i32* @z, align 4
+ ret void
+}