File: asan_instrument_global_address_space.ll

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; RUN: opt < %s -passes=asan -S | FileCheck %s
target datalayout = "e-p:64:64-p1:64:64-p2:32:32-p3:32:32-p4:64:64-p5:32:32-p6:32:32-p7:160:256:256:32-p8:128:128-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-v2048:2048-n32:64-S32-A5-G1-ni:7:8"
target triple = "amdgcn-amd-amdhsa"

define protected amdgpu_kernel void @global_store(ptr addrspace(1) %p, i32 %i) sanitize_address {
entry:
; CHECK-LABEL: @global_store
; CHECK-NOT: store
;
; CHECK:   %[[STORE_ADDR:[^ ]*]] = ptrtoint ptr addrspace(1) %p to i64
; CHECK:   lshr i64 %[[STORE_ADDR]], 3
; CHECK:   add i64 %{{.*}}, 2147450880
; CHECK:   %[[STORE_SHADOW_PTR:[^ ]*]] = inttoptr
; CHECK:   %[[STORE_SHADOW:[^ ]*]] = load i8, ptr %[[STORE_SHADOW_PTR]]
; CHECK:   icmp ne i8
; CHECK:   br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
;
; CHECK:   add i64 %{{.*}}, 3
; CHECK:   trunc i64 %{{.*}} to i8
; CHECK:   icmp sge i8 %{{.*}}, %[[STORE_SHADOW]]
; CHECK:   br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
;
; The crash block reports the error.
; CHECK:   call void @__asan_report_store4(i64 %[[STORE_ADDR]])
; CHECK:   unreachable
;
; The actual store.
; CHECK:   store i32 0, ptr addrspace(1) %p
; CHECK:   ret void

  store i32 0, ptr addrspace(1) %p, align 4
  ret void
}

define protected amdgpu_kernel void @global_load(ptr addrspace(1) %p, i32 %i) sanitize_address {
entry:
; CHECK-LABEL: @global_load
; CHECK-NOT: load
;
; CHECK:   %[[LOAD_ADDR:[^ ]*]] = ptrtoint ptr addrspace(1) %p to i64
; CHECK:   lshr i64 %[[LOAD_ADDR]], 3
; CHECK:   add i64 %{{.*}}, 2147450880
; CHECK:   %[[LOAD_SHADOW_PTR:[^ ]*]] = inttoptr
; CHECK:   %[[LOAD_SHADOW:[^ ]*]] = load i8, ptr %[[LOAD_SHADOW_PTR]]
; CHECK:   icmp ne i8
; CHECK:   br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
;
; CHECK:   add i64 %{{.*}}, 3
; CHECK:   trunc i64 %{{.*}} to i8
; CHECK:   icmp sge i8 %{{.*}}, %[[LOAD_SHADOW]]
; CHECK:   br i1 %{{.*}}, label %{{.*}}, label %{{.*}}
;
; The crash block reports the error.
; CHECK:   call void @__asan_report_load4(i64 %[[LOAD_ADDR]])
; CHECK:   unreachable
;
; The actual load.
; CHECK:   load i32, ptr addrspace(1) %p
; CHECK:   ret void

  %q = load i32, ptr addrspace(1) %p, align 4
  ret void
}