File: gep-nullptr.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (23 lines) | stat: -rw-r--r-- 887 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; RUN: llc -O3 -aarch64-enable-gep-opt=true   < %s |FileCheck %s
target datalayout = "e-m:e-i64:64-i128:128-n8:16:32:64-S128"
target triple = "aarch64--linux-gnu"

%structA = type { i8, i8, i8, i8, i8, i8, [4 x i8], i8, i8, [2 x i32], [2 x %unionMV], [4 x [2 x %unionMV]], [4 x [2 x %unionMV]], [4 x i8], ptr, ptr, i32, ptr }
%unionMV = type { i32 }

; Function Attrs: nounwind
define void @test(ptr %mi_block) {
entry:
  br i1 undef, label %for.body13.us, label %if.else

; Just make sure we don't get a compiler ICE due to dereferncing a nullptr.
; CHECK-LABEL: test
for.body13.us:                                    ; preds = %entry
  %indvars.iv.next40 = or i64 0, 1
  %packed4.i.us.1 = getelementptr inbounds %structA, ptr %mi_block, i64 0, i32 11, i64 0, i64 %indvars.iv.next40, i32 0
  unreachable

if.else:                                          ; preds = %entry
  ret void
}