1 ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck %s 2 3 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" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 ; Test that result origin is directy propagated from the argument, 7 ; and is not affected by all the literal undef operands. 8 ; https://code.google.com/p/memory-sanitizer/issues/detail?id=56 9 10 define <4 x i32> @Shuffle(<4 x i32> %x) nounwind uwtable sanitize_memory { 11 entry: 12 %y = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef> 13 ret <4 x i32> %y 14 } 15 16 ; CHECK-LABEL: @Shuffle( 17 ; CHECK: [[A:%.*]] = load i32* {{.*}}@__msan_param_origin_tls, 18 ; CHECK: store i32 [[A]], i32* @__msan_retval_origin_tls 19 ; CHECK: ret <4 x i32> 20
