File: arm64-volatile.ll

package info (click to toggle)
llvm-toolchain-3.7 1%3A3.7.1-5
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 345,556 kB
  • ctags: 362,199
  • sloc: cpp: 2,156,381; ansic: 458,339; objc: 91,547; python: 89,988; asm: 86,305; sh: 21,479; makefile: 6,853; perl: 5,601; ml: 5,458; pascal: 3,933; lisp: 2,429; xml: 686; cs: 239; php: 202; csh: 117
file content (27 lines) | stat: -rw-r--r-- 852 bytes parent folder | download | duplicates (5)
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 -march=arm64 | 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
}