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 -check-prefixes=CHECK,CHECK-ORIGIN 3; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s 4target 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" 5target triple = "x86_64-unknown-linux-gnu" 6 7define i32 @nofreeze(i32* %ptr) sanitize_memory { 8 ; CHECK-LABEL: @nofreeze 9 %val = load i32, i32* %ptr 10 ; CHECK: [[SHADOW_PTR:%.*]] = inttoptr 11 ; CHECK: [[SHADOW:%.*]] = load i32, i32* [[SHADOW_PTR]] 12 ; CHECK: store i32 [[SHADOW]], {{.*}} @__msan_retval_tls 13 ret i32 %val 14} 15 16define i32 @freeze_inst(i32* %ptr) sanitize_memory { 17 ; CHECK-LABEL: @freeze_inst 18 %val = load i32, i32* %ptr 19 %freeze_val = freeze i32 %val 20 ; CHECK-NOT: __msan_warning 21 ; CHECK: store i32 0, {{.*}} @__msan_retval_tls 22 ret i32 %freeze_val 23} 24