File: memcpy-const-vol-struct.ll

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (18 lines) | stat: -rw-r--r-- 664 bytes parent folder | download | duplicates (17)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
; RUN: llc -mtriple=armv7-arm-none-eabi -o - %s | FileCheck %s

%struct.sMyType = type { i32 }

@val = hidden constant %struct.sMyType zeroinitializer, align 4
@v = internal global %struct.sMyType zeroinitializer, align 4

define hidden void @InitVal() local_unnamed_addr {
entry:
  call void @llvm.memcpy.p0.p0.i32(ptr align 4 @v, ptr align 4 @val, i32 4, i1 true)
; The last argument is the isvolatile argument. This is a volatile memcpy.
; Test that the memcpy expansion does not optimize away the load.
; CHECK: ldr
; CHECK: str
  ret void
}

declare void @llvm.memcpy.p0.p0.i32(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i32, i1 immarg)