1 ; Test -msan-instrumentation-with-call-threshold 2 ; Test that in with-calls mode there are no calls to __msan_chain_origin - they 3 ; are done from __msan_maybe_store_origin_*. 4 5 ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-instrumentation-with-call-threshold=0 -S | FileCheck %s 6 ; 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 7 ; 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 8 9 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" 10 target triple = "x86_64-unknown-linux-gnu" 11 12 define void @LoadAndCmp(i32* nocapture %a) nounwind uwtable sanitize_memory { 13 entry: 14 %0 = load i32, i32* %a, align 4 15 %tobool = icmp eq i32 %0, 0 16 br i1 %tobool, label %if.end, label %if.then 17 18 if.then: ; preds = %entry 19 tail call void (...) @foo() nounwind 20 br label %if.end 21 22 if.end: ; preds = %entry, %if.then 23 ret void 24 } 25 26 declare void @foo(...) 27 28 ; CHECK-LABEL: @LoadAndCmp 29 ; CHECK: = load 30 ; CHECK: = load 31 ; CHECK: = zext i1 {{.*}} to i8 32 ; CHECK: call void @__msan_maybe_warning_1( 33 ; CHECK-NOT: unreachable 34 ; CHECK: ret void 35 36 37 define void @Store(i64* nocapture %p, i64 %x) nounwind uwtable sanitize_memory { 38 entry: 39 store i64 %x, i64* %p, align 4 40 ret void 41 } 42 43 ; CHECK-LABEL: @Store 44 ; CHECK: load {{.*}} @__msan_param_tls 45 ; CHECK-ORIGINS: load {{.*}} @__msan_param_origin_tls 46 ; CHECK: store 47 ; CHECK-ORIGINS-NOT: __msan_chain_origin 48 ; CHECK-ORIGINS: bitcast i64* {{.*}} to i8* 49 ; CHECK-ORIGINS-NOT: __msan_chain_origin 50 ; CHECK-ORIGINS: call void @__msan_maybe_store_origin_8( 51 ; CHECK-ORIGINS-NOT: __msan_chain_origin 52 ; CHECK: store i64 53 ; CHECK: ret void 54
