1 ; Test -asan-force-dynamic-shadow flag.
3 ; RUN: opt -asan -asan-module -S -asan-force-dynamic-shadow=1 < %s | FileCheck %s --check-prefixes=CHECK,CHECK-FDS
4 ; RUN: opt -asan -asan-module -S -asan-force-dynamic-shadow=0 < %s | FileCheck %s --check-prefixes=CHECK,CHECK-NDS
6 target triple = "x86_64-unknown-linux-gnu"
8 define i32 @test_load(i32* %a) sanitize_address {
9 ; First instrumentation in the function must be to load the dynamic shadow
10 ; address into a local variable.
11 ; CHECK-LABEL: @test_load
13 ; CHECK-FDS-NEXT: %[[SHADOW:[^ ]*]] = load i64, i64* @__asan_shadow_memory_dynamic_address
14 ; CHECK-NDS-NOT: __asan_shadow_memory_dynamic_address
16 ; Shadow address is loaded and added into the whole offset computation.
17 ; CHECK-FDS add i64 %{{.*}}, %[[SHADOW] ]
20 %tmp1 = load i32, i32* %a, align 4