File: dereferenceable-and-aligned.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 (20 lines) | stat: -rw-r--r-- 649 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
 
; RUN: opt < %s -passes=licm -S | FileCheck %s

target datalayout = "e-p:32:32-p1:64:64-p4:64:64"

; Make sure isDereferenceableAndAlignePointer() doesn't crash when looking
; walking pointer defs with an addrspacecast that changes pointer size.
; CHECK-LABEL: @addrspacecast_crash
define void @addrspacecast_crash() {
bb:
  %tmp = alloca [256 x i32]
  br label %bb1

bb1:
  %tmp2 = getelementptr inbounds [256 x i32], ptr %tmp, i32 0, i32 36
  %tmp4 = addrspacecast ptr %tmp2 to ptr addrspace(4)
  %tmp5 = load <4 x i32>, ptr addrspace(4) %tmp4
  %tmp6 = xor <4 x i32> %tmp5, undef
  store <4 x i32> %tmp6, ptr addrspace(1) undef
  br label %bb1
}