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
|
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
# RUN: llc -O2 -mtriple=aarch64 -mcpu=ampere1 -simplify-mir -o - %s -run-pass=aarch64-ldst-opt | FileCheck %s --check-prefixes=CHECK
# RUN: llc -O2 -mtriple=aarch64 -simplify-mir -o - %s -run-pass=aarch64-ldst-opt | FileCheck %s --check-prefixes=CHECK-DEFAULT
--- |
define i32 @ldp_no_size_info(ptr %0) #0 {
%2 = ptrtoint ptr %0 to i64
%3 = and i64 %2, -64
%4 = inttoptr i64 %3 to ptr
%5 = load i32, ptr %4, align 4
%6 = getelementptr inbounds i32, ptr %4, i64 1
%7 = load i32, ptr %6, align 4
%8 = add nsw i32 %7, %5
ret i32 %8
}
...
---
name: ldp_no_size_info
alignment: 64
tracksRegLiveness: true
tracksDebugUserValues: true
liveins:
- { reg: '$x0' }
frameInfo:
maxAlignment: 1
maxCallFrameSize: 0
machineFunctionInfo:
hasRedZone: false
body: |
bb.0 (%ir-block.1):
liveins: $x0
; CHECK-LABEL: name: ldp_no_size_info
; CHECK: liveins: $x0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $x8 = ANDXri killed renamable $x0, 7865
; CHECK-NEXT: renamable $w9 = LDRWui renamable $x8, 0 :: (load unknown-size from %ir.4, align 1)
; CHECK-NEXT: renamable $w8 = LDRWui killed renamable $x8, 1 :: (load unknown-size from %ir.6, align 1)
; CHECK-NEXT: $w0 = ADDWrs killed renamable $w8, killed renamable $w9, 0
; CHECK-NEXT: RET undef $lr, implicit $w0
;
; CHECK-DEFAULT-LABEL: name: ldp_no_size_info
; CHECK-DEFAULT: liveins: $x0
; CHECK-DEFAULT-NEXT: {{ $}}
; CHECK-DEFAULT-NEXT: renamable $x8 = ANDXri killed renamable $x0, 7865
; CHECK-DEFAULT-NEXT: renamable $w9, renamable $w8 = LDPWi renamable $x8, 0 :: (load unknown-size from %ir.4, align 1), (load unknown-size from %ir.6, align 1)
; CHECK-DEFAULT-NEXT: $w0 = ADDWrs killed renamable $w8, killed renamable $w9, 0
; CHECK-DEFAULT-NEXT: RET undef $lr, implicit $w0
renamable $x8 = ANDXri killed renamable $x0, 7865
renamable $w9 = LDRWui renamable $x8, 0 :: (load unknown-size from %ir.4)
renamable $w8 = LDRWui killed renamable $x8, 1 :: (load unknown-size from %ir.6)
$w0 = ADDWrs killed renamable $w8, killed renamable $w9, 0
RET undef $lr, implicit $w0
...
|
