File: alias_align.ll

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
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
}