1; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck %s 2; RUN: opt < %s -msan-check-access-address=0 -msan-track-origins=2 -S -passes=msan 2>&1 | FileCheck %s 3target 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" 4target triple = "x86_64-unknown-linux-gnu" 5 6define i32 @nofreeze(ptr %ptr) sanitize_memory { 7 ; CHECK-LABEL: @nofreeze 8 %val = load i32, ptr %ptr 9 ; CHECK: [[SHADOW_PTR:%.*]] = inttoptr 10 ; CHECK: [[SHADOW:%.*]] = load i32, ptr [[SHADOW_PTR]] 11 ; CHECK: store i32 [[SHADOW]], {{.*}} @__msan_retval_tls 12 ret i32 %val 13} 14 15define i32 @freeze_inst(ptr %ptr) sanitize_memory { 16 ; CHECK-LABEL: @freeze_inst 17 %val = load i32, ptr %ptr 18 %freeze_val = freeze i32 %val 19 ; CHECK-NOT: __msan_warning 20 ; CHECK: store i32 0, {{.*}} @__msan_retval_tls 21 ret i32 %freeze_val 22} 23