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