xref: /llvm-project/llvm/test/CodeGen/X86/callbr-asm-blockplacement.ll (revision e6bf48d11047e970cb24554a01b65b566d6b5d22)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
3
4; This test asserted in MachineBlockPlacement during asm-goto bring up.
5
6%struct.wibble = type { %struct.pluto, i32, ptr }
7%struct.pluto = type { i32, i32, i32 }
8
9@global = external dso_local global [0 x %struct.wibble]
10
11define i32 @foo(i32 %arg, ptr %arg3) nounwind {
12; CHECK-LABEL: foo:
13; CHECK:       # %bb.0: # %bb
14; CHECK-NEXT:    pushq %rbp
15; CHECK-NEXT:    pushq %r15
16; CHECK-NEXT:    pushq %r14
17; CHECK-NEXT:    pushq %r13
18; CHECK-NEXT:    pushq %r12
19; CHECK-NEXT:    pushq %rbx
20; CHECK-NEXT:    pushq %rax
21; CHECK-NEXT:    movabsq $-2305847407260205056, %r14 # imm = 0xDFFFFC0000000000
22; CHECK-NEXT:    xorl %eax, %eax
23; CHECK-NEXT:    testb %al, %al
24; CHECK-NEXT:    jne .LBB0_5
25; CHECK-NEXT:  # %bb.1: # %bb5
26; CHECK-NEXT:    movq %rsi, %rbx
27; CHECK-NEXT:    movslq %edi, %rbp
28; CHECK-NEXT:    leaq (,%rbp,8), %rax
29; CHECK-NEXT:    leaq global(%rax,%rax,2), %r14
30; CHECK-NEXT:    leaq global+4(%rax,%rax,2), %r15
31; CHECK-NEXT:    xorl %r13d, %r13d
32; CHECK-NEXT:    .p2align 4
33; CHECK-NEXT:  .LBB0_2: # %bb8
34; CHECK-NEXT:    # =>This Inner Loop Header: Depth=1
35; CHECK-NEXT:    callq bar@PLT
36; CHECK-NEXT:    movq %rax, %r12
37; CHECK-NEXT:    movq %rax, %rdi
38; CHECK-NEXT:    callq *%rbx
39; CHECK-NEXT:    movq %r14, %rdi
40; CHECK-NEXT:    callq hoge@PLT
41; CHECK-NEXT:    movq %r15, %rdi
42; CHECK-NEXT:    callq hoge@PLT
43; CHECK-NEXT:    testb %r13b, %r13b
44; CHECK-NEXT:    jne .LBB0_2
45; CHECK-NEXT:  # %bb.3: # %bb15
46; CHECK-NEXT:    leaq (%rbp,%rbp,2), %rax
47; CHECK-NEXT:    movq %r12, global+16(,%rax,8)
48; CHECK-NEXT:    movabsq $-2305847407260205056, %r14 # imm = 0xDFFFFC0000000000
49; CHECK-NEXT:    #APP
50; CHECK-NEXT:    #NO_APP
51; CHECK-NEXT:  # %bb.4: # %bb17
52; CHECK-NEXT:    callq widget@PLT
53; CHECK-NEXT:  .LBB0_5: # Block address taken
54; CHECK-NEXT:    # %bb18
55; CHECK-NEXT:    # Label of block must be emitted
56; CHECK-NEXT:    movw $0, 14(%r14)
57; CHECK-NEXT:    addq $8, %rsp
58; CHECK-NEXT:    popq %rbx
59; CHECK-NEXT:    popq %r12
60; CHECK-NEXT:    popq %r13
61; CHECK-NEXT:    popq %r14
62; CHECK-NEXT:    popq %r15
63; CHECK-NEXT:    popq %rbp
64; CHECK-NEXT:    retq
65bb:
66  %tmp = add i64 0, -2305847407260205056
67  %tmp4 = sext i32 %arg to i64
68  br i1 undef, label %bb18, label %bb5
69
70bb5:                                              ; preds = %bb
71  %tmp6 = getelementptr [0 x %struct.wibble], ptr @global, i64 0, i64 %tmp4, i32 0, i32 0
72  %tmp7 = getelementptr [0 x %struct.wibble], ptr @global, i64 0, i64 %tmp4, i32 0, i32 1
73  br label %bb8
74
75bb8:                                              ; preds = %bb8, %bb5
76  %tmp9 = call ptr @bar(i64 undef)
77  %tmp10 = call i32 %arg3(ptr nonnull %tmp9)
78  %tmp11 = ptrtoint ptr %tmp6 to i64
79  call void @hoge(i64 %tmp11)
80  %tmp12 = ptrtoint ptr %tmp7 to i64
81  %tmp13 = add i64 undef, -2305847407260205056
82  call void @hoge(i64 %tmp12)
83  %tmp14 = icmp eq i32 0, 0
84  br i1 %tmp14, label %bb15, label %bb8
85
86bb15:                                             ; preds = %bb8
87  %tmp16 = getelementptr [0 x %struct.wibble], ptr @global, i64 0, i64 %tmp4, i32 2
88  store ptr %tmp9, ptr %tmp16
89  callbr void asm sideeffect "", "!i"()
90          to label %bb17 [label %bb18]
91
92bb17:                                             ; preds = %bb15
93  call void @widget()
94  br label %bb18
95
96bb18:                                             ; preds = %bb17, %bb15, %bb
97  %tmp19 = add i64 %tmp, 14
98  %tmp20 = inttoptr i64 %tmp19 to ptr
99  store i16 0, ptr %tmp20
100  ret i32 undef
101}
102
103declare ptr @bar(i64)
104
105declare void @widget()
106
107declare void @hoge(i64)
108