24 lines
752 B
LLVM
24 lines
752 B
LLVM
; Test alloca instrumentation when tags are generated by HWASan function.
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;
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; RUN: opt < %s -hwasan -hwasan-generate-tags-with-calls -S | FileCheck %s
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--linux-android"
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declare void @use32(i32*)
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define void @test_alloca() sanitize_hwaddress {
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; CHECK-LABEL: @test_alloca(
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; CHECK: %[[BC:[^ ]*]] = bitcast { i32, [12 x i8] }* %x to i32*
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; CHECK: %[[T1:[^ ]*]] = call i8 @__hwasan_generate_tag()
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; CHECK: %[[A:[^ ]*]] = zext i8 %[[T1]] to i64
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; CHECK: %[[B:[^ ]*]] = ptrtoint i32* %[[BC]] to i64
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; CHECK: %[[C:[^ ]*]] = shl i64 %[[A]], 56
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; CHECK: or i64 %[[B]], %[[C]]
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entry:
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%x = alloca i32, align 4
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call void @use32(i32* nonnull %x)
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ret void
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}
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