Commit d95203ba authored by Hans Wennborg's avatar Hans Wennborg
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Merging r310240: 

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r310240 | vitalybuka | 2017-08-07 00:12:33 -0700 (Mon, 07 Aug 2017) | 1 line

Add -asan-force-dynamic-shadow test
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llvm-svn: 310316
parent f8f93f84

llvm/test/Instrumentation/AddressSanitizer/force-dynamic-shadow.ll

0 → 100644
+22 −0
Original line number Diff line number Diff line 
; Test -asan-force-dynamic-shadow flag.

;

; RUN: opt -asan -asan-module -S -asan-force-dynamic-shadow=1 < %s | FileCheck %s --check-prefixes=CHECK,CHECK-FDS

; RUN: opt -asan -asan-module -S -asan-force-dynamic-shadow=0 < %s | FileCheck %s --check-prefixes=CHECK,CHECK-NDS



target triple = "x86_64-unknown-linux-gnu"



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-FDS-NEXT: %[[SHADOW:[^ ]*]] = load i64, i64* @__asan_shadow_memory_dynamic_address

; CHECK-NDS-NOT: __asan_shadow_memory_dynamic_address



; Shadow address is loaded and added into the whole offset computation.

; CHECK-FDS add i64 %{{.*}}, %[[SHADOW] ]



entry:

  %tmp1 = load i32, i32* %a, align 4

  ret i32 %tmp1

}