forked from OSchip/llvm-project
34 lines
1.2 KiB
LLVM
34 lines
1.2 KiB
LLVM
; 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> <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://code.google.com/p/memory-sanitizer/issues/detail?id=78
|
|
|
|
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
|