File: long-calls.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (57 lines) | stat: -rw-r--r-- 1,870 bytes parent folder | download | duplicates (9)
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
; RUN: llc -march=mips -mattr=-long-calls %s -o - \
; RUN:   | FileCheck -check-prefix=OFF %s
; RUN: llc -march=mips -mattr=+long-calls,+noabicalls %s -o - \
; RUN:   | FileCheck -check-prefix=ON32 %s

; RUN: llc -march=mips -mattr=+long-calls,-noabicalls %s -o - \
; RUN:   | FileCheck -check-prefix=OFF %s

; RUN: llc -march=mips64 -target-abi n32 -mattr=-long-calls %s -o - \
; RUN:   | FileCheck -check-prefix=OFF %s
; RUN: llc -march=mips64 -target-abi n32 -mattr=+long-calls,+noabicalls %s -o - \
; RUN:   | FileCheck -check-prefix=ON32 %s

; RUN: llc -march=mips64 -target-abi n64 -mattr=-long-calls %s -o - \
; RUN:   | FileCheck -check-prefix=OFF %s
; RUN: llc -march=mips64 -target-abi n64 -mattr=+long-calls,+noabicalls %s -o - \
; RUN:   | FileCheck -check-prefix=ON64 %s

declare void @callee()
declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i1)

@val = internal unnamed_addr global [20 x i32] zeroinitializer, align 4

define void @caller() {

; Use `jal` instruction with R_MIPS_26 relocation.
; OFF: jal callee
; OFF: jal memset

; Save the `callee` and `memset` addresses in $25 register
; and use `jalr` for the jumps.
; ON32: lui    $1, %hi(callee)
; ON32: addiu  $25, $1, %lo(callee)
; ON32: jalr   $25

; ON32: lui    $1, %hi(memset)
; ON32: addiu  $25, $1, %lo(memset)
; ON32: jalr   $25

; ON64: lui     $1, %highest(callee)
; ON64: daddiu  $1, $1, %higher(callee)
; ON64: daddiu  $1, $1, %hi(callee)
; ON64: daddiu  $25, $1, %lo(callee)
; ON64: jalr    $25

; ON64: lui     $2, %highest(memset)
; ON64: daddiu  $1, $2, %higher(memset)
; ON64: dsll    $1, $1, 16
; ON64: daddiu  $1, $1, %hi(memset)
; ON64: dsll    $1, $1, 16
; ON64: daddiu  $25, $1, %lo(memset)
; ON64: jalr    $25

  call void @callee()
  call void @llvm.memset.p0i8.i32(i8* align 4 bitcast ([20 x i32]* @val to i8*), i8 0, i32 80, i1 false)
  ret  void
}