| ; Test for -msan-disable-checks, which should treat every function in the file |
| ; as if it didn't have the sanitize_memory attribute. |
| ; RUN: opt < %s -msan-check-access-address=0 -S -passes='module(msan-module),function(msan)' 2>&1 | FileCheck -allow-deprecated-dag-overlap -check-prefixes=CHECK,INSTR %s |
| ; RUN: opt < %s -msan-check-access-address=0 -S -passes='module(msan-module),function(msan)' -msan-disable-checks=1 2>&1 | FileCheck -allow-deprecated-dag-overlap -check-prefixes=CHECK,NOSANITIZE %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" |
| |
| declare void @bar() |
| |
| define i32 @SanitizeFn(i32 %x) uwtable sanitize_memory { |
| entry: |
| %tobool = icmp eq i32 %x, 0 |
| br i1 %tobool, label %if.end, label %if.then |
| |
| if.then: ; preds = %entry |
| tail call void @bar() |
| br label %if.end |
| |
| if.end: ; preds = %entry, %if.then |
| ret i32 %x |
| } |
| |
| ; CHECK-LABEL: @SanitizeFn |
| ; INSTR: @__msan_warning |
| ; NOSANITIZE-NOT: @__msan_warning |
| ; NOSANITIZE: store i32 0, {{.*}} @__msan_retval_tls |
| ; CHECK: ret i32 |
| |
| |
| define i32 @NoSanitizeFn(i32 %x) uwtable { |
| entry: |
| %tobool = icmp eq i32 %x, 0 |
| br i1 %tobool, label %if.end, label %if.then |
| |
| if.then: ; preds = %entry |
| tail call void @bar() |
| br label %if.end |
| |
| if.end: ; preds = %entry, %if.then |
| ret i32 %x |
| } |
| |
| |
| ; CHECK-LABEL: @NoSanitizeFn |
| ; CHECK-NOT: @__msan_warning |
| ; CHECK: store i32 0, {{.*}} @__msan_retval_tls |
| ; CHECK: ret i32 |
| |
