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35d5a437ea
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210473 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
869 B
LLVM
20 lines
869 B
LLVM
; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck %s
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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"
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target triple = "x86_64-unknown-linux-gnu"
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; Test that result origin is directy propagated from the argument,
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; and is not affected by all the literal undef operands.
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; https://code.google.com/p/memory-sanitizer/issues/detail?id=56
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define <4 x i32> @Shuffle(<4 x i32> %x) nounwind uwtable sanitize_memory {
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entry:
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%y = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 undef, i32 undef>
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ret <4 x i32> %y
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}
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; CHECK-LABEL: @Shuffle(
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; CHECK: [[A:%.*]] = load i32* {{.*}}@__msan_param_origin_tls,
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; CHECK: store i32 [[A]], i32* @__msan_retval_origin_tls
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; CHECK: ret <4 x i32>
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