1 ; Test that copy alignment for byval arguments is limited by param-tls slot alignment. 2 3 ; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s 4 5 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 6 target triple = "x86_64-unknown-linux-gnu" 7 8 %struct.S = type { i64, i64, i64, [8 x i8] } 9 10 ; CHECK: [[A:%.*]] = bitcast i64* {{.*}} add {{.*}} ptrtoint {{.*}} @__msan_param_tls {{.*}} i64 8) 11 ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[A]], i8* {{.*}}, i64 32, i32 8, i1 false) 12 13 define void @Caller() sanitize_memory { 14 entry: 15 %agg.tmp = alloca %struct.S, align 16 16 call void @Callee(i32 1, %struct.S* byval align 16 %agg.tmp) 17 ret void 18 } 19 20 declare void @Callee(i32, %struct.S* byval align 16) 21
