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authorKostya Serebryany <kcc@google.com>2013-01-24 10:35:40 +0000
committerKostya Serebryany <kcc@google.com>2013-01-24 10:35:40 +0000
commit63f0846f1eb43332a08811d332b813276b727eb6 (patch)
treec9b00cb3c0a81d9da11de91f6ab44113dcd76c91 /test/Instrumentation
parent6cf7a91d12fe208a41223daa4aa9c603c390e0ce (diff)
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[asan] adaptive redzones for globals (the larger the global the larger is the redzone)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173335 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Instrumentation')
-rw-r--r--test/Instrumentation/AddressSanitizer/adaptive_global_redzones.ll57
1 files changed, 57 insertions, 0 deletions
diff --git a/test/Instrumentation/AddressSanitizer/adaptive_global_redzones.ll b/test/Instrumentation/AddressSanitizer/adaptive_global_redzones.ll
new file mode 100644
index 0000000000..6a60d1c29f
--- /dev/null
+++ b/test/Instrumentation/AddressSanitizer/adaptive_global_redzones.ll
@@ -0,0 +1,57 @@
+; RUN: opt < %s -asan -asan-module -S | FileCheck %s
+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"
+target triple = "x86_64-unknown-linux-gnu"
+
+; Here we check that the global redzone sizes grow with the object size.
+
+@G10 = global [10 x i8] zeroinitializer, align 1
+; CHECK: @G10 = global { [10 x i8], [54 x i8] }
+
+@G31 = global [31 x i8] zeroinitializer, align 1
+@G32 = global [32 x i8] zeroinitializer, align 1
+@G33 = global [33 x i8] zeroinitializer, align 1
+; CHECK: @G31 = global { [31 x i8], [33 x i8] }
+; CHECK: @G32 = global { [32 x i8], [32 x i8] }
+; CHECK: @G33 = global { [33 x i8], [63 x i8] }
+
+@G63 = global [63 x i8] zeroinitializer, align 1
+@G64 = global [64 x i8] zeroinitializer, align 1
+@G65 = global [65 x i8] zeroinitializer, align 1
+; CHECK: @G63 = global { [63 x i8], [33 x i8] }
+; CHECK: @G64 = global { [64 x i8], [32 x i8] }
+; CHECK: @G65 = global { [65 x i8], [63 x i8] }
+
+@G127 = global [127 x i8] zeroinitializer, align 1
+@G128 = global [128 x i8] zeroinitializer, align 1
+@G129 = global [129 x i8] zeroinitializer, align 1
+; CHECK: @G127 = global { [127 x i8], [33 x i8] }
+; CHECK: @G128 = global { [128 x i8], [32 x i8] }
+; CHECK: @G129 = global { [129 x i8], [63 x i8] }
+
+@G255 = global [255 x i8] zeroinitializer, align 1
+@G256 = global [256 x i8] zeroinitializer, align 1
+@G257 = global [257 x i8] zeroinitializer, align 1
+; CHECK: @G255 = global { [255 x i8], [33 x i8] }
+; CHECK: @G256 = global { [256 x i8], [64 x i8] }
+; CHECK: @G257 = global { [257 x i8], [95 x i8] }
+
+@G511 = global [511 x i8] zeroinitializer, align 1
+@G512 = global [512 x i8] zeroinitializer, align 1
+@G513 = global [513 x i8] zeroinitializer, align 1
+; CHECK: @G511 = global { [511 x i8], [97 x i8] }
+; CHECK: @G512 = global { [512 x i8], [128 x i8] }
+; CHECK: @G513 = global { [513 x i8], [159 x i8] }
+
+@G1023 = global [1023 x i8] zeroinitializer, align 1
+@G1024 = global [1024 x i8] zeroinitializer, align 1
+@G1025 = global [1025 x i8] zeroinitializer, align 1
+; CHECK: @G1023 = global { [1023 x i8], [225 x i8] }
+; CHECK: @G1024 = global { [1024 x i8], [256 x i8] }
+; CHECK: @G1025 = global { [1025 x i8], [287 x i8] }
+
+@G1000000 = global [1000000 x i8] zeroinitializer, align 1
+@G10000000 = global [10000000 x i8] zeroinitializer, align 1
+@G100000000 = global [100000000 x i8] zeroinitializer, align 1
+; CHECK: @G1000000 = global { [1000000 x i8], [249984 x i8] }
+; CHECK: @G10000000 = global { [10000000 x i8], [262144 x i8] }
+; CHECK: @G100000000 = global { [100000000 x i8], [262144 x i8] }