Mercurial > hg > Members > tobaru > cbc > CbC_llvm

view test/Instrumentation/MemorySanitizer/byval-alignment.ll @ 100:7d135dc70f03

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents 60c9769439b8
children
line wrap: on
line source

; Test that copy alignment for byval arguments is limited by param-tls slot alignment.

; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%struct.S = type { i64, i64, i64, [8 x i8] }

; CHECK: [[A:%.*]] = bitcast i64* {{.*}} add {{.*}} ptrtoint {{.*}} @__msan_param_tls {{.*}} i64 8)
; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[A]], i8* {{.*}}, i64 32, i32 8, i1 false)

define void @Caller() sanitize_memory {
entry:
  %agg.tmp = alloca %struct.S, align 16
  call void @Callee(i32 1, %struct.S* byval align 16 %agg.tmp)
  ret void
}

declare void @Callee(i32, %struct.S* byval align 16)