llvm-for-llvmta/test/Instrumentation/DataFlowSanitizer/args-unreachable-bb.ll

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2022-04-25 10:02:23 +02:00
; 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-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
}