File: frameaddr-returnaddr.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (90 lines) | stat: -rw-r--r-- 2,896 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=csky -verify-machineinstrs -csky-no-aliases -mattr=+2e3 < %s \
; RUN:   | FileCheck %s

declare void @notdead(ptr)
declare ptr @llvm.frameaddress(i32)
declare ptr @llvm.returnaddress(i32)

define ptr @test_frameaddress_0() nounwind {
; CHECK-LABEL: test_frameaddress_0:
; CHECK:       # %bb.0:
; CHECK-NEXT:    subi16 sp, sp, 4
; CHECK-NEXT:    st32.w l4, (sp, 0) # 4-byte Folded Spill
; CHECK-NEXT:    mov16 l4, sp
; CHECK-NEXT:    mov16 a0, l4
; CHECK-NEXT:    mov16 sp, l4
; CHECK-NEXT:    ld32.w l4, (sp, 0) # 4-byte Folded Reload
; CHECK-NEXT:    addi16 sp, sp, 4
; CHECK-NEXT:    rts16
  %1 = call ptr @llvm.frameaddress(i32 0)
  ret ptr %1
}

define ptr @test_frameaddress_2() nounwind {
; CHECK-LABEL: test_frameaddress_2:
; CHECK:       # %bb.0:
; CHECK-NEXT:    subi16 sp, sp, 4
; CHECK-NEXT:    st32.w l4, (sp, 0) # 4-byte Folded Spill
; CHECK-NEXT:    mov16 l4, sp
; CHECK-NEXT:    ld32.w a0, (l4, 0)
; CHECK-NEXT:    ld16.w a0, (a0, 0)
; CHECK-NEXT:    mov16 sp, l4
; CHECK-NEXT:    ld32.w l4, (sp, 0) # 4-byte Folded Reload
; CHECK-NEXT:    addi16 sp, sp, 4
; CHECK-NEXT:    rts16
  %1 = call ptr @llvm.frameaddress(i32 2)
  ret ptr %1
}

define ptr @test_frameaddress_3_alloca() nounwind {
; CHECK-LABEL: test_frameaddress_3_alloca:
; CHECK:       # %bb.0:
; CHECK-NEXT:    subi16 sp, sp, 8
; CHECK-NEXT:    st32.w lr, (sp, 4) # 4-byte Folded Spill
; CHECK-NEXT:    st32.w l4, (sp, 0) # 4-byte Folded Spill
; CHECK-NEXT:    mov16 l4, sp
; CHECK-NEXT:    subi16 sp, sp, 100
; CHECK-NEXT:    movi16 a0, 0
; CHECK-NEXT:    addu16 a0, sp
; CHECK-NEXT:    jsri32 [.LCPI2_0]
; CHECK-NEXT:    ld32.w a0, (l4, 0)
; CHECK-NEXT:    ld16.w a0, (a0, 0)
; CHECK-NEXT:    ld16.w a0, (a0, 0)
; CHECK-NEXT:    mov16 sp, l4
; CHECK-NEXT:    ld32.w l4, (sp, 0) # 4-byte Folded Reload
; CHECK-NEXT:    ld32.w lr, (sp, 4) # 4-byte Folded Reload
; CHECK-NEXT:    addi16 sp, sp, 8
; CHECK-NEXT:    rts16
  %1 = alloca [100 x i8]
  %2 = bitcast ptr %1 to ptr
  call void @notdead(ptr %2)
  %3 = call ptr @llvm.frameaddress(i32 3)
  ret ptr %3
}

define ptr @test_returnaddress_0() nounwind {
; CHECK-LABEL: test_returnaddress_0:
; CHECK:       # %bb.0:
; CHECK-NEXT:    mov16 a0, lr
; CHECK-NEXT:    rts16
  %1 = call ptr @llvm.returnaddress(i32 0)
  ret ptr %1
}

define ptr @test_returnaddress_2() nounwind {
; CHECK-LABEL: test_returnaddress_2:
; CHECK:       # %bb.0:
; CHECK-NEXT:    subi16 sp, sp, 4
; CHECK-NEXT:    st32.w l4, (sp, 0) # 4-byte Folded Spill
; CHECK-NEXT:    mov16 l4, sp
; CHECK-NEXT:    ld32.w a0, (l4, 0)
; CHECK-NEXT:    ld16.w a0, (a0, 0)
; CHECK-NEXT:    ld16.w a0, (a0, 4)
; CHECK-NEXT:    mov16 sp, l4
; CHECK-NEXT:    ld32.w l4, (sp, 0) # 4-byte Folded Reload
; CHECK-NEXT:    addi16 sp, sp, 4
; CHECK-NEXT:    rts16
  %1 = call ptr @llvm.returnaddress(i32 2)
  ret ptr %1
}