Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/Instrumentation/AddressSanitizer/basic-msvc64.ll

@@ -0,0 +1,35 @@
+; Test basic address sanitizer instrumentation.
+;
+; RUN: opt -asan -asan-module -S  < %s | FileCheck %s
+
+target triple = "x86_64-pc-windows-msvc"
+; CHECK: @llvm.global_ctors = {{.*}}@asan.module_ctor
+
+define i32 @test_load(i32* %a) sanitize_address {
+; First instrumentation in the function must be to load the dynamic shadow
+; address into a local variable.
+; CHECK-LABEL: @test_load
+; CHECK: entry:
+; CHECK-NEXT: %[[SHADOW:[^ ]*]] = load i64, i64* @__asan_shadow_memory_dynamic_address
+
+; Shadow address is loaded and added into the whole offset computation.
+; CHECK add i64 %{{.*}}, %[[SHADOW] ]
+
+entry:
+  %tmp1 = load i32, i32* %a, align 4
+  ret i32 %tmp1
+}
+
+define i32 @__asan_options(i32* %a) sanitize_address {
+; Asan functions are not instrumented. Asan function may be called by
+; __asan_init before the shadow initialisation, which may lead to incorrect
+; behavior of the instrumented code.
+; CHECK-LABEL: @__asan_options
+; CHECK: entry:
+; CHECK-NEXT: %tmp1 = load i32, i32* %a, align 4
+; CHECK-NEXT: ret i32 %tmp1
+
+entry:
+  %tmp1 = load i32, i32* %a, align 4
+  ret i32 %tmp1
+}