File: eh-return32.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (89 lines) | stat: -rw-r--r-- 3,310 bytes parent folder | download | duplicates (8)
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
; RUN: llc -march=mipsel -mcpu=mips32   -asm-show-inst -relocation-model=pic < %s | FileCheck %s -check-prefixes=CHECK,NOT-R6
; RUN: llc -march=mipsel -mcpu=mips32r2 -asm-show-inst -relocation-model=pic < %s | FileCheck %s -check-prefixes=CHECK,NOT-R6
; RUN: llc -march=mipsel -mcpu=mips32r6 -asm-show-inst -relocation-model=pic < %s | FileCheck %s -check-prefixes=CHECK,R6

declare void @llvm.eh.return.i32(i32, ptr)
declare void @foo(...)

define ptr @f1(i32 %offset, ptr %handler) {
entry:
  call void (...) @foo()
  call void @llvm.eh.return.i32(i32 %offset, ptr %handler)
  unreachable

; CHECK:    f1:
; CHECK:        addiu   $sp, $sp, -[[spoffset:[0-9]+]]

; check that $a0-$a3 are saved on stack.
; CHECK:        sw      $4, [[offset0:[0-9]+]]($sp)
; CHECK:        sw      $5, [[offset1:[0-9]+]]($sp)
; CHECK:        sw      $6, [[offset2:[0-9]+]]($sp)
; CHECK:        sw      $7, [[offset3:[0-9]+]]($sp)

; check that .cfi_offset directives are emitted for $a0-$a3.
; CHECK:        .cfi_offset 4,
; CHECK:        .cfi_offset 5,
; CHECK:        .cfi_offset 6,
; CHECK:        .cfi_offset 7,

; check that stack adjustment and handler are put in $v1 and $v0.
; CHECK:        move    $[[R0:[a-z0-9]+]], $5
; CHECK:        move    $[[R1:[a-z0-9]+]], $4
; CHECK:        move    $3, $[[R1]]
; CHECK:        move    $2, $[[R0]]

; check that $a0-$a3 are restored from stack.
; CHECK:        lw      $4, [[offset0]]($sp)
; CHECK:        lw      $5, [[offset1]]($sp)
; CHECK:        lw      $6, [[offset2]]($sp)
; CHECK:        lw      $7, [[offset3]]($sp)

; check that stack is adjusted by $v1 and that code returns to address in $v0
; also check that $25 contains handler value
; CHECK:        addiu   $sp, $sp, [[spoffset]]
; CHECK:        move    $25, $2
; CHECK:        move    $ra, $2
; NOT-R6:       jr      $ra # <MCInst #{{[0-9]+}} JR
; R6:           jr      $ra # <MCInst #{{[0-9]+}} JALR
; CHECK:        addu    $sp, $sp, $3
}

define ptr @f2(i32 %offset, ptr %handler) {
entry:
  call void @llvm.eh.return.i32(i32 %offset, ptr %handler)
  unreachable

; CHECK:    f2:
; CHECK:        addiu   $sp, $sp, -[[spoffset:[0-9]+]]

; check that $a0-$a3 are saved on stack.
; CHECK:        sw      $4, [[offset0:[0-9]+]]($sp)
; CHECK:        sw      $5, [[offset1:[0-9]+]]($sp)
; CHECK:        sw      $6, [[offset2:[0-9]+]]($sp)
; CHECK:        sw      $7, [[offset3:[0-9]+]]($sp)

; check that .cfi_offset directives are emitted for $a0-$a3.
; CHECK:        .cfi_offset 4,
; CHECK:        .cfi_offset 5,
; CHECK:        .cfi_offset 6,
; CHECK:        .cfi_offset 7,

; check that stack adjustment and handler are put in $v1 and $v0.
; CHECK:        move    $3, $4
; CHECK:        move    $2, $5

; check that $a0-$a3 are restored from stack.
; CHECK:        lw      $4, [[offset0]]($sp)
; CHECK:        lw      $5, [[offset1]]($sp)
; CHECK:        lw      $6, [[offset2]]($sp)
; CHECK:        lw      $7, [[offset3]]($sp)

; check that stack is adjusted by $v1 and that code returns to address in $v0
; also check that $25 contains handler value
; CHECK:        addiu   $sp, $sp, [[spoffset]]
; CHECK:        move    $25, $2
; CHECK:        move    $ra, $2
; NOT-R6:       jr      $ra # <MCInst #{{[0-9]+}} JR
; R6:           jr      $ra # <MCInst #{{[0-9]+}} JALR
; CHECK:        addu    $sp, $sp, $3
}