From cd81d94322a39503e4a3e87b6ee03d4fcb3465fb Mon Sep 17 00:00:00 2001 From: Stephen Hines Date: Mon, 21 Jul 2014 00:45:20 -0700 Subject: Update LLVM for rebase to r212749. Includes a cherry-pick of: r212948 - fixes a small issue with atomic calls Change-Id: Ib97bd980b59f18142a69506400911a6009d9df18 --- .../Instrumentation/MemorySanitizer/missing_origin.ll | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 test/Instrumentation/MemorySanitizer/missing_origin.ll (limited to 'test/Instrumentation/MemorySanitizer/missing_origin.ll') diff --git a/test/Instrumentation/MemorySanitizer/missing_origin.ll b/test/Instrumentation/MemorySanitizer/missing_origin.ll new file mode 100644 index 0000000..673e853 --- /dev/null +++ b/test/Instrumentation/MemorySanitizer/missing_origin.ll @@ -0,0 +1,19 @@ +; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -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" + +; Test that result origin is directy propagated from the argument, +; and is not affected by all the literal undef operands. +; https://code.google.com/p/memory-sanitizer/issues/detail?id=56 + +define <4 x i32> @Shuffle(<4 x i32> %x) nounwind uwtable sanitize_memory { +entry: + %y = shufflevector <4 x i32> %x, <4 x i32> undef, <4 x i32> + ret <4 x i32> %y +} + +; CHECK-LABEL: @Shuffle( +; CHECK: [[A:%.*]] = load i32* {{.*}}@__msan_param_origin_tls, +; CHECK: store i32 [[A]], i32* @__msan_retval_origin_tls +; CHECK: ret <4 x i32> -- cgit v1.1