File: args-unreachable-bb.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (34 lines) | stat: -rw-r--r-- 876 bytes parent folder | download | duplicates (3) 
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
 
; RUN: opt < %s -dfsan -verify -dfsan-args-abi -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]]
; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]]

; CHECK-LABEL: @unreachable_bb1.dfsan
define i8 @unreachable_bb1() {
  ; CHECK: ret { i8, i[[#SBITS]] } { i8 1, i[[#SBITS]] 0 }
  ; CHECK-NOT: bb2:
  ; CHECK-NOT: bb3:
  ; CHECK-NOT: bb4:
  ret i8 1

bb2:
  ret i8 2

bb3:
  br label %bb4

bb4:
  br label %bb3
}

declare void @abort() noreturn

; CHECK-LABEL: @unreachable_bb2.dfsan
define i8 @unreachable_bb2() {
  call void @abort() noreturn
  ; CHECK-NOT: i8 12
  ; CHECK: unreachable
  ret i8 12
}