File: fast-isel-memcpy.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (18 lines) | stat: -rw-r--r-- 664 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64-apple-darwin -fast-isel -fast-isel-abort=1 -verify-machineinstrs < %s | FileCheck %s

; Test that we don't segfault.
define void @test(i64 %a, i8* %b) {
; CHECK-LABEL: test:
; CHECK:       ; %bb.0:
; CHECK-NEXT:    and x8, x0, #0x7fffffffffffffff
; CHECK-NEXT:    ldr x9, [x1]
; CHECK-NEXT:    str x9, [x8]
; CHECK-NEXT:    ret
  %1 = and i64 %a, 9223372036854775807
  %2 = inttoptr i64 %1 to i8*
  call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 8 %2, i8* align 8 %b, i64 8, i1 false)
  ret void
}

declare void @llvm.memcpy.p0i8.p0i8.i64(i8*, i8*, i64, i1)