1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
; RUN: llc < %s -march=x86 -stats |& grep {codegen-dce} | grep {Number of dead instructions deleted}
%struct.anon = type { [3 x double], double, %struct.node*, [64 x %struct.bnode*], [64 x %struct.bnode*] }
%struct.bnode = type { i16, double, [3 x double], i32, i32, [3 x double], [3 x double], [3 x double], double, %struct.bnode*, %struct.bnode* }
%struct.node = type { i16, double, [3 x double], i32, i32 }
define i32 @main(i32 %argc, i8** nocapture %argv) nounwind {
entry:
%0 = malloc %struct.anon ; <%struct.anon*> [#uses=2]
%1 = getelementptr %struct.anon* %0, i32 0, i32 2 ; <%struct.node**> [#uses=1]
br label %bb14.i
bb14.i: ; preds = %bb14.i, %entry
%i8.0.reg2mem.0.i = phi i32 [ 0, %entry ], [ %2, %bb14.i ] ; <i32> [#uses=1]
%2 = add i32 %i8.0.reg2mem.0.i, 1 ; <i32> [#uses=2]
%exitcond74.i = icmp eq i32 %2, 32 ; <i1> [#uses=1]
br i1 %exitcond74.i, label %bb32.i, label %bb14.i
bb32.i: ; preds = %bb32.i, %bb14.i
%tmp.0.reg2mem.0.i = phi i32 [ %indvar.next63.i, %bb32.i ], [ 0, %bb14.i ] ; <i32> [#uses=1]
%indvar.next63.i = add i32 %tmp.0.reg2mem.0.i, 1 ; <i32> [#uses=2]
%exitcond64.i = icmp eq i32 %indvar.next63.i, 64 ; <i1> [#uses=1]
br i1 %exitcond64.i, label %bb47.loopexit.i, label %bb32.i
bb.i.i: ; preds = %bb47.loopexit.i
unreachable
stepsystem.exit.i: ; preds = %bb47.loopexit.i
store %struct.node* null, %struct.node** %1, align 4
br label %bb.i6.i
bb.i6.i: ; preds = %bb.i6.i, %stepsystem.exit.i
br i1 false, label %bb107.i.i, label %bb.i6.i
bb107.i.i: ; preds = %bb107.i.i, %bb.i6.i
%q_addr.0.i.i.in = phi %struct.bnode** [ null, %bb107.i.i ], [ %3, %bb.i6.i ] ; <%struct.bnode**> [#uses=0]
br label %bb107.i.i
bb47.loopexit.i: ; preds = %bb32.i
%3 = getelementptr %struct.anon* %0, i32 0, i32 4, i32 0 ; <%struct.bnode**> [#uses=1]
%4 = icmp eq %struct.node* null, null ; <i1> [#uses=1]
br i1 %4, label %stepsystem.exit.i, label %bb.i.i
}
|
