File: arm64-unaligned_ldst.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (41 lines) | stat: -rw-r--r-- 1,047 bytes parent folder | download | duplicates (16)
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
; RUN: llc < %s -mtriple=arm64-eabi | FileCheck %s
; rdar://r11231896

define void @t1(i8* nocapture %a, i8* nocapture %b) nounwind {
entry:
; CHECK-LABEL: t1:
; CHECK-NOT: orr
; CHECK: ldr [[X0:x[0-9]+]], [x1]
; CHECK: str [[X0]], [x0]
  %tmp1 = bitcast i8* %b to i64*
  %tmp2 = bitcast i8* %a to i64*
  %tmp3 = load i64, i64* %tmp1, align 1
  store i64 %tmp3, i64* %tmp2, align 1
  ret void
}

define void @t2(i8* nocapture %a, i8* nocapture %b) nounwind {
entry:
; CHECK-LABEL: t2:
; CHECK-NOT: orr
; CHECK: ldr [[W0:w[0-9]+]], [x1]
; CHECK: str [[W0]], [x0]
  %tmp1 = bitcast i8* %b to i32*
  %tmp2 = bitcast i8* %a to i32*
  %tmp3 = load i32, i32* %tmp1, align 1
  store i32 %tmp3, i32* %tmp2, align 1
  ret void
}

define void @t3(i8* nocapture %a, i8* nocapture %b) nounwind {
entry:
; CHECK-LABEL: t3:
; CHECK-NOT: orr
; CHECK: ldrh [[W0:w[0-9]+]], [x1]
; CHECK: strh [[W0]], [x0]
  %tmp1 = bitcast i8* %b to i16*
  %tmp2 = bitcast i8* %a to i16*
  %tmp3 = load i16, i16* %tmp1, align 1
  store i16 %tmp3, i16* %tmp2, align 1
  ret void
}