forked from OSchip/llvm-project
24 lines
635 B
LLVM
24 lines
635 B
LLVM
; Test that undecidable dynamic allocas are skipped by ASan.
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; RUN: opt < %s -asan -asan-module -asan-instrument-allocas=1 -S | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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target triple = "x86_64-unknown-linux-gnu"
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define void @g(i64 %n) sanitize_address {
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entry:
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%cmp = icmp sgt i64 %n, 100
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br i1 %cmp, label %do_alloca, label %done
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do_alloca:
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; CHECK-NOT: store i32 -892679478
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%0 = alloca i8, i64 %n, align 1
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call void @f(i8* %0)
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br label %done
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done:
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ret void
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}
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declare void @f(i8*)
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