| blob | dee2695cdae9f306d75b28e944721f8e96fcc489 |
1 ; REQUIRES: asserts
3 ; RUN: llc -march=hexagon -mcpu=hexagonv65 -O3 -debug-only=pipeliner \
4 ; RUN: < %s 2>&1 -pipeliner-experimental-cg=true | FileCheck %s
6 ; As part of https://reviews.llvm.org/D106308 this test broke.
7 ; It is not surprising as the tts is full of UB and run with O3.
8 ; FIXME: It is unclear what to do with this test now, replacing null/undef
9 ; with pointer arguments could be a way to go.
10 ; XFAIL: *
12 ; Test that the artificial dependences are ignored while computing the
13 ; circuits.
15 ; The recurrence should be 1 here. If we do not ignore artificial deps,
16 ; it will be greater.
17 ; CHECK: rec=1,
19 define void @foo(i32 %size) #0 {
20 entry:
21 %add = add nsw i32 0, 4
22 %shr = ashr i32 %size, 1
23 br i1 undef, label %L57.us, label %L57.us.ur
25 L57.us:
26 %R9.0470.us = phi i32 [ %sub40.us.3, %L57.us ], [ undef, %entry ]
27 %sub40.us.3 = add i32 %R9.0470.us, -64
28 br i1 undef, label %L57.us, label %for.cond22.for.end_crit_edge.us.ur-lcssa
30 for.cond22.for.end_crit_edge.us.ur-lcssa:
31 %inc.us.3.lcssa = phi i32 [ undef, %L57.us ]
32 %sub40.us.3.lcssa = phi i32 [ %sub40.us.3, %L57.us ]
33 %0 = icmp eq i32 %inc.us.3.lcssa, %shr
34 br i1 %0, label %for.cond22.for.end_crit_edge.us, label %L57.us.ur
36 L57.us.ur:
37 %R15_14.0478.us.ur = phi i64 [ %1, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
38 %R13_12.0477.us.ur = phi i64 [ %14, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
39 %R11_10.0476.us.ur = phi i64 [ %8, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
40 %R7_6.0475.us.ur = phi i64 [ %7, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
41 %R5_4.2474.us.ur = phi i64 [ %16, %L57.us.ur ], [ undef, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
42 %R3_2.0473.us.ur = phi i64 [ %9, %L57.us.ur ], [ 0, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
43 %R1_0.0472.us.ur = phi i64 [ %15, %L57.us.ur ], [ undef, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
44 %kk.0471.us.ur = phi i32 [ %inc.us.ur, %L57.us.ur ], [ 0, %entry ], [ %inc.us.3.lcssa, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
45 %R9.0470.us.ur = phi i32 [ %sub40.us.ur, %L57.us.ur ], [ undef, %entry ], [ %sub40.us.3.lcssa, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
46 %R8.0469.us.ur = phi i32 [ %sub34.us.ur, %L57.us.ur ], [ undef, %entry ], [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ]
47 %1 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %R15_14.0478.us.ur, i64 %R1_0.0472.us.ur, i64 %R3_2.0473.us.ur)
48 %2 = tail call i64 @llvm.hexagon.S2.shuffeh(i64 %R5_4.2474.us.ur, i64 %R7_6.0475.us.ur)
49 %3 = inttoptr i32 %R9.0470.us.ur to ptr
50 %4 = load i16, ptr %3, align 2
51 %conv27.us.ur = sext i16 %4 to i32
52 %sub28.us.ur = add i32 %R9.0470.us.ur, -8
53 %5 = inttoptr i32 %R8.0469.us.ur to ptr
54 %6 = load i16, ptr %5, align 2
55 %conv30.us.ur = sext i16 %6 to i32
56 %sub31.us.ur = add i32 %R8.0469.us.ur, -8
57 %7 = tail call i64 @llvm.hexagon.A2.combinew(i32 %conv27.us.ur, i32 %conv30.us.ur)
58 %8 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %R11_10.0476.us.ur, i64 %R1_0.0472.us.ur, i64 %2)
59 %9 = tail call i64 @llvm.hexagon.S2.shuffeh(i64 %7, i64 %R5_4.2474.us.ur)
60 %10 = inttoptr i32 %sub31.us.ur to ptr
61 %11 = load i16, ptr %10, align 2
62 %conv33.us.ur = sext i16 %11 to i32
63 %sub34.us.ur = add i32 %R8.0469.us.ur, -16
64 %conv35.us.ur = trunc i64 %9 to i32
65 %12 = inttoptr i32 %sub28.us.ur to ptr
66 %13 = load i16, ptr %12, align 2
67 %conv39.us.ur = sext i16 %13 to i32
68 %sub40.us.ur = add i32 %R9.0470.us.ur, -16
69 %14 = tail call i64 @llvm.hexagon.M2.vdmacs.s0(i64 %R13_12.0477.us.ur, i64 %R1_0.0472.us.ur, i64 %9)
70 %15 = tail call i64 @llvm.hexagon.A2.combinew(i32 %conv35.us.ur, i32 undef)
71 %16 = tail call i64 @llvm.hexagon.A2.combinew(i32 %conv39.us.ur, i32 %conv33.us.ur)
72 %inc.us.ur = add nsw i32 %kk.0471.us.ur, 1
73 %exitcond535.ur = icmp eq i32 %inc.us.ur, %shr
74 br i1 %exitcond535.ur, label %for.cond22.for.end_crit_edge.us.ur-lcssa572, label %L57.us.ur
76 for.cond22.for.end_crit_edge.us.ur-lcssa572:
77 %.lcssa730 = phi i64 [ %14, %L57.us.ur ]
78 %.lcssa729 = phi i64 [ %8, %L57.us.ur ]
79 %.lcssa728 = phi i64 [ %1, %L57.us.ur ]
80 %extract.t652 = trunc i64 %.lcssa730 to i32
81 %extract661 = lshr i64 %.lcssa729, 32
82 %extract.t662 = trunc i64 %extract661 to i32
83 %extract.t664 = trunc i64 %.lcssa728 to i32
84 br label %for.cond22.for.end_crit_edge.us
86 for.cond22.for.end_crit_edge.us:
87 %.lcssa551.off0 = phi i32 [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ], [ %extract.t652, %for.cond22.for.end_crit_edge.us.ur-lcssa572 ]
88 %.lcssa550.off32 = phi i32 [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ], [ %extract.t662, %for.cond22.for.end_crit_edge.us.ur-lcssa572 ]
89 %.lcssa549.off0 = phi i32 [ undef, %for.cond22.for.end_crit_edge.us.ur-lcssa ], [ %extract.t664, %for.cond22.for.end_crit_edge.us.ur-lcssa572 ]
90 %17 = inttoptr i32 %add to ptr
91 store i32 %.lcssa549.off0, ptr %17, align 4
92 %add.ptr61.us = getelementptr inbounds i8, ptr null, i32 32
93 store i32 %.lcssa551.off0, ptr %add.ptr61.us, align 4
94 store i32 %.lcssa550.off32, ptr undef, align 4
95 call void @llvm.trap()
96 unreachable
97 }
99 ; Function Attrs: nounwind readnone
100 declare i64 @llvm.hexagon.A2.combinew(i32, i32) #1
102 ; Function Attrs: nounwind readnone
103 declare i64 @llvm.hexagon.M2.vdmacs.s0(i64, i64, i64) #1
105 ; Function Attrs: nounwind readnone
106 declare i64 @llvm.hexagon.S2.shuffeh(i64, i64) #1
108 ; Function Attrs: noreturn nounwind
109 declare void @llvm.trap() #2
111 attributes #0 = { nounwind }
112 attributes #1 = { nounwind readnone }
113 attributes #2 = { noreturn nounwind }