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view test/Instrumentation/DataFlowSanitizer/args-unreachable-bb.ll @ 33:e4204d083e25

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LLVM 3.5
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 14:32:10 +0900
parents 95c75e76d11b
children 60c9769439b8
line wrap: on
line source

; 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"

; CHECK-LABEL: @"dfs$unreachable_bb1"
define i8 @unreachable_bb1() {
  ; CHECK: ret { i8, i16 } { i8 1, i16 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: @"dfs$unreachable_bb2"
define i8 @unreachable_bb2() {
  call void @abort() noreturn
  ; CHECK-NOT: i8 12
  ; CHECK: unreachable
  ret i8 12
}