File: arm64-volatile.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (27 lines) | stat: -rw-r--r-- 859 bytes parent folder | download | duplicates (15) 
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
 
; RUN: llc < %s -mtriple=arm64-eabi | FileCheck %s
define i64 @normal_load(i64* nocapture %bar) nounwind readonly {
; CHECK: normal_load
; CHECK: ldp
; CHECK-NEXT: add
; CHECK-NEXT: ret
  %add.ptr = getelementptr inbounds i64, i64* %bar, i64 1
  %tmp = load i64, i64* %add.ptr, align 8
  %add.ptr1 = getelementptr inbounds i64, i64* %bar, i64 2
  %tmp1 = load i64, i64* %add.ptr1, align 8
  %add = add nsw i64 %tmp1, %tmp
  ret i64 %add
}

define i64 @volatile_load(i64* nocapture %bar) nounwind {
; CHECK: volatile_load
; CHECK: ldr
; CHECK-NEXT: ldr
; CHECK-NEXT: add
; CHECK-NEXT: ret
  %add.ptr = getelementptr inbounds i64, i64* %bar, i64 1
  %tmp = load volatile i64, i64* %add.ptr, align 8
  %add.ptr1 = getelementptr inbounds i64, i64* %bar, i64 2
  %tmp1 = load volatile i64, i64* %add.ptr1, align 8
  %add = add nsw i64 %tmp1, %tmp
  ret i64 %add
}