1 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
2 # RUN: llc -O0 -mtriple=aarch64-unknown-unknown -verify-machineinstrs -run-pass=legalizer %s -o - | FileCheck %s
4 target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
10 bb1: ; preds = %bb3, %bb
11 %lsr.iv = phi i16* [ %scevgep, %bb3 ], [ undef, %bb ]
12 %tmp = phi i1 [ %tmp9, %bb3 ], [ undef, %bb ]
13 br i1 %tmp, label %bb10, label %bb3
16 %tmp5 = getelementptr i16, i16* null, i64 2
17 %tmp6 = load i16, i16* %lsr.iv, align 2, !tbaa !0
18 %tmp7 = icmp eq i16 %tmp6, -1
19 %tmp8 = load i16, i16* %tmp5, align 2, !tbaa !0
20 %tmp9 = icmp eq i16 %tmp8, -1
21 %scevgep = getelementptr i16, i16* %lsr.iv, i64 2
22 br i1 %tmp7, label %bb10, label %bb1
24 bb10: ; preds = %bb3, %bb1
29 !1 = !{!"short", !2, i64 0}
30 !2 = !{!"omnipotent char", !3, i64 0}
31 !3 = !{!"Simple C/C++ TBAA"}
37 tracksRegLiveness: true
41 ; CHECK-LABEL: name: snork
43 ; CHECK: successors: %bb.1(0x80000000)
44 ; CHECK: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 0
45 ; CHECK: [[INTTOPTR:%[0-9]+]]:_(p0) = G_INTTOPTR [[C]](s64)
46 ; CHECK: [[DEF:%[0-9]+]]:_(p0) = G_IMPLICIT_DEF
47 ; CHECK: [[DEF1:%[0-9]+]]:_(s16) = G_IMPLICIT_DEF
49 ; CHECK: successors: %bb.3(0x40000000), %bb.2(0x40000000)
50 ; CHECK: [[PHI:%[0-9]+]]:_(p0) = G_PHI %6(p0), %bb.2, [[DEF]](p0), %bb.0
51 ; CHECK: [[PHI1:%[0-9]+]]:_(s16) = G_PHI %20(s16), %bb.2, [[DEF1]](s16), %bb.0
52 ; CHECK: [[TRUNC:%[0-9]+]]:_(s1) = G_TRUNC [[PHI1]](s16)
53 ; CHECK: G_BRCOND [[TRUNC]](s1), %bb.3
55 ; CHECK: successors: %bb.3(0x40000000), %bb.1(0x40000000)
56 ; CHECK: [[C1:%[0-9]+]]:_(s64) = G_CONSTANT i64 4
57 ; CHECK: [[GEP:%[0-9]+]]:_(p0) = G_GEP [[INTTOPTR]], [[C1]](s64)
58 ; CHECK: [[LOAD:%[0-9]+]]:_(s16) = G_LOAD [[PHI]](p0) :: (load 2 from %ir.lsr.iv)
59 ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[LOAD]](s16)
60 ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 65535
61 ; CHECK: [[ICMP:%[0-9]+]]:_(s32) = G_ICMP intpred(eq), [[ZEXT]](s32), [[C2]]
62 ; CHECK: [[TRUNC1:%[0-9]+]]:_(s1) = G_TRUNC [[ICMP]](s32)
63 ; CHECK: [[LOAD1:%[0-9]+]]:_(s16) = G_LOAD [[GEP]](p0) :: (load 2 from %ir.tmp5)
64 ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[LOAD1]](s16)
65 ; CHECK: [[COPY:%[0-9]+]]:_(s32) = COPY [[C2]](s32)
66 ; CHECK: [[ICMP1:%[0-9]+]]:_(s32) = G_ICMP intpred(eq), [[ZEXT1]](s32), [[COPY]]
67 ; CHECK: [[GEP1:%[0-9]+]]:_(p0) = G_GEP [[PHI]], [[C1]](s64)
68 ; CHECK: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ICMP1]](s32)
69 ; CHECK: G_BRCOND [[TRUNC1]](s1), %bb.3
74 %3:_(s64) = G_CONSTANT i64 0
75 %2:_(p0) = G_INTTOPTR %3(s64)
76 %7:_(s16) = G_CONSTANT i16 -1
77 %12:_(p0) = G_IMPLICIT_DEF
78 %13:_(s1) = G_IMPLICIT_DEF
81 %0:_(p0) = G_PHI %11(p0), %bb.3, %12(p0), %bb.1
82 %1:_(s1) = G_PHI %10(s1), %bb.3, %13(s1), %bb.1
83 G_BRCOND %1(s1), %bb.4
86 %4:_(s64) = G_CONSTANT i64 4
87 %5:_(p0) = G_GEP %2, %4(s64)
88 %6:_(s16) = G_LOAD %0(p0) :: (load 2 from %ir.lsr.iv)
89 %8:_(s1) = G_ICMP intpred(eq), %6(s16), %7
90 %9:_(s16) = G_LOAD %5(p0) :: (load 2 from %ir.tmp5)
91 %10:_(s1) = G_ICMP intpred(eq), %9(s16), %7
92 %11:_(p0) = G_GEP %0, %4(s64)
93 G_BRCOND %8(s1), %bb.4