| ; Test -msan-instrumentation-with-call-threshold |
| ; Test that in with-calls mode there are no calls to __msan_chain_origin - they |
| ; are done from __msan_maybe_store_origin_*. |
| |
| ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-instrumentation-with-call-threshold=0 -S | FileCheck %s |
| ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-instrumentation-with-call-threshold=0 -msan-track-origins=1 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS %s |
| ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-instrumentation-with-call-threshold=0 -msan-track-origins=2 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS %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" |
| |
| define void @LoadAndCmp(i32* nocapture %a) nounwind uwtable sanitize_memory { |
| entry: |
| %0 = load i32, i32* %a, align 4 |
| %tobool = icmp eq i32 %0, 0 |
| br i1 %tobool, label %if.end, label %if.then |
| |
| if.then: ; preds = %entry |
| tail call void (...) @foo() nounwind |
| br label %if.end |
| |
| if.end: ; preds = %entry, %if.then |
| ret void |
| } |
| |
| declare void @foo(...) |
| |
| ; CHECK-LABEL: @LoadAndCmp |
| ; CHECK: = load |
| ; CHECK: = load |
| ; CHECK: = zext i1 {{.*}} to i8 |
| ; CHECK: call void @__msan_maybe_warning_1( |
| ; CHECK-NOT: unreachable |
| ; CHECK: ret void |
| |
| |
| define void @Store(i64* nocapture %p, i64 %x) nounwind uwtable sanitize_memory { |
| entry: |
| store i64 %x, i64* %p, align 4 |
| ret void |
| } |
| |
| ; CHECK-LABEL: @Store |
| ; CHECK: load {{.*}} @__msan_param_tls |
| ; CHECK-ORIGINS: load {{.*}} @__msan_param_origin_tls |
| ; CHECK: store |
| ; CHECK-ORIGINS-NOT: __msan_chain_origin |
| ; CHECK-ORIGINS: bitcast i64* {{.*}} to i8* |
| ; CHECK-ORIGINS-NOT: __msan_chain_origin |
| ; CHECK-ORIGINS: call void @__msan_maybe_store_origin_8( |
| ; CHECK-ORIGINS-NOT: __msan_chain_origin |
| ; CHECK: store i64 |
| ; CHECK: ret void |
