File: basicaa-memcpy.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (16 lines) | stat: -rw-r--r-- 579 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
; RUN: opt -disable-output -passes='print<memoryssa>' %s 2>&1 | FileCheck %s

declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind

define void @source_clobber(ptr %a, ptr %b) {
; CHECK-LABEL: @source_clobber(
; CHECK-NEXT:  ; 1 = MemoryDef(liveOnEntry)
; CHECK-NEXT:    call void @llvm.memcpy.p0.p0.i64(ptr %a, ptr %b, i64 128, i1 false)
; CHECK-NEXT:  ; MemoryUse(1)
; CHECK-NEXT:    [[X:%.*]] = load i8, ptr %b
; CHECK-NEXT:    ret void
;
  call void @llvm.memcpy.p0.p0.i64(ptr %a, ptr %b, i64 128, i1 false)
  %x = load i8, ptr %b
  ret void
}