File: aligned-overread.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.4-1~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,998,488 kB
  • sloc: cpp: 6,951,470; ansic: 1,486,052; asm: 913,550; python: 232,020; f90: 80,126; objc: 75,349; lisp: 37,276; pascal: 16,990; sh: 9,935; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,164; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (25 lines) | stat: -rw-r--r-- 973 bytes parent folder | download | duplicates (12) 
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: opt < %s -aa-pipeline=basic-aa -passes=dse -S | FileCheck %s

target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.8.0"

%struct.S0 = type <{ i8, [4 x i8] }>

@a = global { i8, i8, i8, i8, i8 } { i8 undef, i8 0, i8 0, i8 0, i8 0 }, align 8

define i32 @main() nounwind uwtable ssp {
entry:
  %tmp = load i8, ptr getelementptr inbounds ({ i8, i8, i8, i8, i8 }, ptr @a, i64 0, i32 4), align 4
  %tmp1 = or i8 %tmp, -128
  store i8 %tmp1, ptr getelementptr inbounds ({ i8, i8, i8, i8, i8 }, ptr @a, i64 0, i32 4), align 4
  %tmp2 = load i64, ptr @a, align 8
  store i8 11, ptr getelementptr inbounds ({ i8, i8, i8, i8, i8 }, ptr @a, i64 0, i32 4), align 4
  %tmp3 = trunc i64 %tmp2 to i32
  ret i32 %tmp3

; Make sure we don't delete either store here
; CHECK: @main
; CHECK: store i8 %tmp1
; CHECK: store i8 11
}