File: crash-lifetime-marker.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (26 lines) | stat: -rw-r--r-- 826 bytes parent folder | download | duplicates (4) 
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
26
 
; RUN: opt < %s -inline -S | FileCheck %s
; RUN: opt < %s -passes='cgscc(inline)' -S | FileCheck %s
; RUN: opt < %s -passes='module-inline' -S | FileCheck %s

; InlineFunction would assert inside the loop that leaves lifetime markers if
; there was an zero-sized AllocaInst. Check that it doesn't assert and doesn't
; leave lifetime markers in that case.

declare i32 @callee2(i8*)

define i32 @callee1(i32 %count) {
  %a0 = alloca i8, i32 %count, align 4
  %call0 = call i32 @callee2(i8* %a0)
  ret i32 %call0
}

; CHECK-LABEL: define i32 @caller1(
; CHECK: [[ALLOCA:%[a-z0-9\.]+]] = alloca i8
; CHECK-NOT: call void @llvm.lifetime.start.p0i8(
; CHECK: call i32 @callee2(i8* [[ALLOCA]])
; CHECK-NOT: call void @llvm.lifetime.end.p0i8(

define i32 @caller1(i32 %count) {
  %call0 = call i32 @callee1(i32 0)
  ret i32 %call0
}