File: function-specialization-poison.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (40 lines) | stat: -rw-r--r-- 893 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
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes="ipsccp<func-spec>" -force-specialization -S < %s | FileCheck %s

; Check that we don't crash and specialise on a poison value.

%struct.quux = type { i16 }
%struct.spam = type { i16 }

@global.12 = external global %struct.quux, align 1

define internal i16 @wobble(ptr byval(%struct.spam) %arg2) {
; CHECK-LABEL: @wobble(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    unreachable
;
bb:
  unreachable
}

define internal i16 @snork() {
; CHECK-LABEL: @snork(
; CHECK-NEXT:  bb4:
; CHECK-NEXT:    [[B:%.*]] = call i16 @wobble(ptr poison)
; CHECK-NEXT:    unreachable
;
bb4:
  %B = call i16 @wobble(ptr poison)
  unreachable
}

define i16 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[A:%.*]] = call i16 @snork()
; CHECK-NEXT:    unreachable
;
bb:
  %A = call i16 @snork()
  unreachable
}