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1; Test for -msan-disable-checks, which should treat every function in the file2; as if it didn't have the sanitize_memory attribute.3; RUN: opt < %s -msan-check-access-address=0 -S -passes='module(msan)' 2>&1 | FileCheck -allow-deprecated-dag-overlap -check-prefixes=CHECK,INSTR %s4; RUN: opt < %s -msan-check-access-address=0 -S -passes='module(msan)' -msan-disable-checks=1 2>&1 | FileCheck -allow-deprecated-dag-overlap -check-prefixes=CHECK,NOSANITIZE %s5 6target 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"7target triple = "x86_64-unknown-linux-gnu"8 9declare void @bar()10 11define i32 @SanitizeFn(i32 %x) uwtable sanitize_memory {12entry:13 %tobool = icmp eq i32 %x, 014 br i1 %tobool, label %if.end, label %if.then15 16if.then: ; preds = %entry17 tail call void @bar()18 br label %if.end19 20if.end: ; preds = %entry, %if.then21 ret i32 %x22}23 24; CHECK-LABEL: @SanitizeFn25; INSTR: @__msan_warning26; NOSANITIZE-NOT: @__msan_warning27; NOSANITIZE: store i32 0, {{.*}} @__msan_retval_tls28; CHECK: ret i3229 30 31define i32 @NoSanitizeFn(i32 %x) uwtable {32entry:33 %tobool = icmp eq i32 %x, 034 br i1 %tobool, label %if.end, label %if.then35 36if.then: ; preds = %entry37 tail call void @bar()38 br label %if.end39 40if.end: ; preds = %entry, %if.then41 ret i32 %x42}43 44 45; CHECK-LABEL: @NoSanitizeFn46; CHECK-NOT: @__msan_warning47; CHECK: store i32 0, {{.*}} @__msan_retval_tls48; CHECK: ret i3249 50