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
}
|