File: dereferenceable-and-aligned.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 (21 lines) | stat: -rw-r--r-- 722 bytes parent folder | download | duplicates (16)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
; RUN: opt < %s -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], [256 x i32]* %tmp, i32 0, i32 36
  %tmp3 = bitcast i32* %tmp2 to <4 x i32>*
  %tmp4 = addrspacecast <4 x i32>* %tmp3 to <4 x i32> addrspace(4)*
  %tmp5 = load <4 x i32>, <4 x i32> addrspace(4)* %tmp4
  %tmp6 = xor <4 x i32> %tmp5, undef
  store <4 x i32> %tmp6, <4 x i32> addrspace(1)* undef
  br label %bb1
}