| ; 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://github.com/google/sanitizers/issues/559 |
| |
| 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> <i32 1, i32 undef, i32 undef, i32 undef> |
| ret <4 x i32> %y |
| } |
| |
| ; CHECK-LABEL: @Shuffle( |
| ; CHECK: [[A:%.*]] = load i32, i32* {{.*}}@__msan_param_origin_tls, |
| ; CHECK: store i32 [[A]], i32* @__msan_retval_origin_tls |
| ; CHECK: ret <4 x i32> |
| |
| |
| ; Regression test for origin propagation in "select i1, float, float". |
| ; https://github.com/google/sanitizers/issues/581 |
| |
| define float @SelectFloat(i1 %b, float %x, float %y) nounwind uwtable sanitize_memory { |
| entry: |
| %z = select i1 %b, float %x, float %y |
| ret float %z |
| } |
| |
| ; CHECK-LABEL: @SelectFloat( |
| ; CHECK-NOT: select {{.*}} i32 0, i32 0 |
| ; CHECK: ret float |
