llvm-project
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1; RUN: opt %loadNPMPolly -polly-invariant-load-hoisting=true '-passes=print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s --check-prefix=SCOP
2; RUN: opt %loadNPMPolly -S -passes=polly-codegen -polly-invariant-load-hoisting=true %s | FileCheck %s
3;
4; The offset of the %tmp1 load wrt. to %buff (62 bytes) is not divisible
5; by the type size (i32 = 4 bytes), thus we will have to represent %buff
6; with a smaller type. In this case i16 is sufficient to represent the
7; 62 byte offset accurately.
8;
9; SCOP: Invariant Accesses: {
10; SCOP: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
11; SCOP: { Stmt_if_end_6[] -> MemRef_buff[o0] : 31 <= o0 <= 32 };
12; SCOP: Execution Context: { : }
13; SCOP: }
14; SCOP: Arrays {
15; SCOP: i16 MemRef_buff[*]; // Element size 2
16; SCOP: i32 MemRef_key_0; // Element size 4
17; SCOP: }
18;
19; CHECK-LABEL: polly.preload.begin:
20; CHECK-NEXT: %polly.access.buff = getelementptr i16, ptr %buff, i64 31
21; CHECK-NEXT: %polly.access.buff.load = load i32, ptr %polly.access.buff, align 4
22; CHECK-NEXT: store i32 %polly.access.buff.load, ptr %tmp1.preload.s2a
23;
24target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
25
26; Function Attrs: nounwind uwtable
27define void @sudecrypt(ptr %buff) #0 {
28entry:
29br i1 undef, label %cleanup, label %if.end
30
31if.end: ; preds = %entry
32br i1 undef, label %if.end.6, label %if.then.5
33
34if.then.5: ; preds = %if.end
35unreachable
36
37if.end.6: ; preds = %if.end
38%add.ptr = getelementptr inbounds i8, ptr %buff, i64 62
39%tmp1 = load i32, ptr %add.ptr, align 4, !tbaa !1
40br i1 false, label %if.then.13, label %switch.early.test
41
42switch.early.test: ; preds = %if.end.6
43switch i32 0, label %if.end.16 [
44i32 956, label %if.then.13
45i32 520, label %if.then.13
46]
47
48if.then.13: ; preds = %switch.early.test, %switch.early.test, %if.end.6
49br label %if.end.16
50
51if.end.16: ; preds = %if.then.13, %switch.early.test
52%key.0 = phi i32 [ undef, %if.then.13 ], [ 0, %switch.early.test ]
53br i1 undef, label %if.end.34, label %if.then.19
54
55if.then.19: ; preds = %if.end.16
56unreachable
57
58if.end.34: ; preds = %if.end.16
59unreachable
60
61cleanup: ; preds = %entry
62ret void
63}
64
65attributes #0 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
66
67!llvm.ident = !{!0}
68
69!0 = !{!"clang version 3.8.0 (trunk 250010) (llvm/trunk 250018)"}
70!1 = !{!2, !2, i64 0}
71!2 = !{!"int", !3, i64 0}
72!3 = !{!"omnipotent char", !4, i64 0}
73!4 = !{!"Simple C/C++ TBAA"}
74