File: alias_align.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (25 lines) | stat: -rw-r--r-- 927 bytes parent folder | download | duplicates (14) 
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
 
; RUN: llc < %s | FileCheck %s

target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "armv8-arm-none-eabi"

; Check the loads happen after the stores (note: directly returning 0 is also valid)
; CHECK-LABEL: somesortofhash
; CHECK-NOT: ldr
; CHECK: str

define i64 @somesortofhash() {
entry:
  %helper = alloca i8, i32 64, align 8
  %helper.0.4x32 = bitcast i8* %helper to <4 x i32>*
  %helper.20 = getelementptr inbounds i8, i8* %helper, i32 20
  %helper.24 = getelementptr inbounds i8, i8* %helper, i32 24
  store <4 x i32> zeroinitializer, <4 x i32>* %helper.0.4x32, align 8
  %helper.20.32 = bitcast i8* %helper.20 to i32*
  %helper.24.32 = bitcast i8* %helper.24 to i32*
  store i32 0, i32* %helper.20.32
  store i32 0, i32* %helper.24.32, align 8
  %helper.20.64 = bitcast i8* %helper.20 to i64*
  %load.helper.20.64 = load i64, i64* %helper.20.64, align 4
  ret i64 %load.helper.20.64
}