xref: /llvm-project/llvm/test/CodeGen/ARM/fpoffset_overflow.mir (revision 8aaa368d0018822734b462ade86797fab2de182f) 
1# RUN: llc -o - %s -mtriple=thumbv7-- -run-pass=stack-protector -run-pass=prologepilog | FileCheck %s
2---
3# This should trigger an emergency spill in the register scavenger because the
4# frame offset into the large argument is too large.
5# CHECK-LABEL: name: func0
6# CHECK: t2STRi12 killed %r7, %sp, 0, 14, _ :: (store 4 into %stack.0)
7# CHECK: %r7 = t2ADDri killed %sp, 4096, 14, _, _
8# CHECK: %r11 = t2LDRi12 killed %r7, 36, 14, _ :: (load 4)
9# CHECK: %r7 = t2LDRi12 %sp, 0, 14, _ :: (load 4 from %stack.0)
10name: func0
11tracksRegLiveness: true
12fixedStack:
13  - { id: 0, offset: 4084, size: 4, alignment: 4, isImmutable: true,
14      isAliased: false }
15  - { id: 1, offset: -12, size: 4096, alignment: 4, isImmutable: false,
16      isAliased: false }
17body: |
18  bb.0:
19    %r0 = IMPLICIT_DEF
20    %r1 = IMPLICIT_DEF
21    %r2 = IMPLICIT_DEF
22    %r3 = IMPLICIT_DEF
23    %r4 = IMPLICIT_DEF
24    %r5 = IMPLICIT_DEF
25    %r6 = IMPLICIT_DEF
26    %r8 = IMPLICIT_DEF
27    %r9 = IMPLICIT_DEF
28    %r10 = IMPLICIT_DEF
29    %r11 = IMPLICIT_DEF
30    %r12 = IMPLICIT_DEF
31    %lr = IMPLICIT_DEF
32
33    %r11 = t2LDRi12 %fixed-stack.0, 0, 14, _ :: (load 4)
34
35    KILL %r0
36    KILL %r1
37    KILL %r2
38    KILL %r3
39    KILL %r4
40    KILL %r5
41    KILL %r6
42    KILL %r8
43    KILL %r9
44    KILL %r10
45    KILL %r11
46    KILL %r12
47    KILL %lr
48...
49---
50# This should not trigger an emergency spill yet.
51# CHECK-LABEL: name: func1
52# CHECK-NOT: t2STRi12
53# CHECK-NOT: t2ADDri
54# CHECK: %r11 = t2LDRi12 %sp, 4092, 14, _ :: (load 4)
55# CHECK-NOT: t2LDRi12
56name: func1
57tracksRegLiveness: true
58fixedStack:
59  - { id: 0, offset: 4044, size: 4, alignment: 4, isImmutable: true,
60      isAliased: false }
61  - { id: 1, offset: -12, size: 4056, alignment: 4, isImmutable: false,
62      isAliased: false }
63body: |
64  bb.0:
65    %r0 = IMPLICIT_DEF
66    %r1 = IMPLICIT_DEF
67    %r2 = IMPLICIT_DEF
68    %r3 = IMPLICIT_DEF
69    %r4 = IMPLICIT_DEF
70    %r5 = IMPLICIT_DEF
71    %r6 = IMPLICIT_DEF
72    %r8 = IMPLICIT_DEF
73    %r9 = IMPLICIT_DEF
74    %r10 = IMPLICIT_DEF
75    %r11 = IMPLICIT_DEF
76    %r12 = IMPLICIT_DEF
77    %lr = IMPLICIT_DEF
78
79    %r11 = t2LDRi12 %fixed-stack.0, 0, 14, _ :: (load 4)
80
81    KILL %r0
82    KILL %r1
83    KILL %r2
84    KILL %r3
85    KILL %r4
86    KILL %r5
87    KILL %r6
88    KILL %r8
89    KILL %r9
90    KILL %r10
91    KILL %r11
92    KILL %r12
93    KILL %lr
94...
95