[asan] experimental tracing for indirect calls, llvm part.

[oota-llvm.git] / test / Instrumentation / AddressSanitizer / coverage.ll

diff --git a/test/Instrumentation/AddressSanitizer/coverage.ll b/test/Instrumentation/AddressSanitizer/coverage.ll
index 47a54c0ef85e7cb29c115f0d872ad8ffcf41eab3..d666925d62200c738be88b3a7d0e11f98079d95e 100644 (file)
--- a/test/Instrumentation/AddressSanitizer/coverage.ll
+++ b/test/Instrumentation/AddressSanitizer/coverage.ll
@@ -1,13 +1,86 @@
-; RUN: opt < %s -asan -asan-coverage=1 -S | FileCheck %s
+; RUN: opt < %s -asan -asan-module -asan-coverage=0 -S | FileCheck %s --check-prefix=CHECK0
+; RUN: opt < %s -asan -asan-module -asan-coverage=1 -S | FileCheck %s --check-prefix=CHECK1
+; RUN: opt < %s -asan -asan-module -asan-coverage=2 -S | FileCheck %s --check-prefix=CHECK2
+; RUN: opt < %s -asan -asan-module -asan-coverage=2 -asan-coverage-block-threshold=10 -S | FileCheck %s --check-prefix=CHECK2
+; RUN: opt < %s -asan -asan-module -asan-coverage=2 -asan-coverage-block-threshold=1  -S | FileCheck %s --check-prefix=CHECK1
+; RUN: opt < %s -asan -asan-module -asan-coverage=3 -asan-coverage-block-threshold=10 -S | FileCheck %s --check-prefix=CHECK3
+; RUN: opt < %s -asan -asan-module -asan-coverage=4 -S | FileCheck %s --check-prefix=CHECK4
+
+; RUN: opt < %s -asan -asan-module -asan-coverage=0 -asan-globals=0 -S | \
+; RUN:     FileCheck %s --check-prefix=CHECK0
+; RUN: opt < %s -asan -asan-module -asan-coverage=1 -asan-globals=0 -S | \
+; RUN:     FileCheck %s --check-prefix=CHECK1
+; RUN: opt < %s -asan -asan-module -asan-coverage=2 -asan-globals=0 -S | \
+; RUN:     FileCheck %s --check-prefix=CHECK2
+; RUN: opt < %s -asan -asan-module -asan-coverage=2 -asan-coverage-block-threshold=10 \
+; RUN:     -asan-globals=0 -S | FileCheck %s --check-prefix=CHECK2
+; RUN: opt < %s -asan -asan-module -asan-coverage=2 -asan-coverage-block-threshold=1 \
+; RUN:     -asan-globals=0 -S | FileCheck %s --check-prefix=CHECK1
+
 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"
-define i32 @foo(i32* %a) sanitize_address {
+define void @foo(i32* %a) sanitize_address {
 entry:
-  ret i32 0
+  %tobool = icmp eq i32* %a, null
+  br i1 %tobool, label %if.end, label %if.then
+
+  if.then:                                          ; preds = %entry
+  store i32 0, i32* %a, align 4
+  br label %if.end
+
+  if.end:                                           ; preds = %entry, %if.then
+  ret void
 }
-; CHECK: define i32 @foo(i32* %a) #0 {
-; CHECK: %0 = load atomic i8* @__asan_gen_cov_foo monotonic, align 1
-; CHECK: %1 = icmp eq i8 0, %0
-; CHECK: br i1 %1, label %2, label %3
-; CHECK: call void @__sanitizer_cov(i64 ptrtoint (i32 (i32*)* @foo to i64))
-; CHECK: store atomic i8 1, i8* @__asan_gen_cov_foo monotonic, align 1
+
+; CHECK0-NOT: call void @__sanitizer_cov(
+; CHECK0-NOT: call void @__sanitizer_cov_module_init(
+
+; CHECK1-LABEL: define void @foo
+; CHECK1: %0 = load atomic i8* @__asan_gen_cov_foo monotonic, align 1
+; CHECK1: %1 = icmp eq i8 0, %0
+; CHECK1: br i1 %1, label %2, label %3
+; CHECK1: call void @__sanitizer_cov
+; CHECK1-NOT: call void @__sanitizer_cov
+; CHECK1: store atomic i8 1, i8* @__asan_gen_cov_foo monotonic, align 1
+
+; CHECK1-LABEL: define internal void @asan.module_ctor
+; CHECK1-NOT: ret
+; CHECK1: call void @__sanitizer_cov_module_init(i64 2)
+; CHECK1: ret
+
+
+; CHECK2-LABEL: define void @foo
+; CHECK2: call void @__sanitizer_cov
+; CHECK2: call void @__sanitizer_cov
+; CHECK2: call void @__sanitizer_cov
+; CHECK2-NOT: call void @__sanitizer_cov
+; CHECK2: ret void
+
+; CHECK2-LABEL: define internal void @asan.module_ctor
+; CHECK2-NOT: ret
+; CHECK2: call void @__sanitizer_cov_module_init(i64 4)
+; CHECK2: ret
+
+; CHECK3-LABEL: define void @foo
+; CHECK3: call void @__sanitizer_cov
+; CHECK3: call void @__sanitizer_cov
+; CHECK3: call void @__sanitizer_cov
+; CHECK3: call void @__sanitizer_cov
+; CHECK3-NOT: call void @__sanitizer_cov
+; CHECK3: ret void
+
+
+%struct.StructWithVptr = type { i32 (...)** }
+
+define void @CallViaVptr(%struct.StructWithVptr* %foo) uwtable sanitize_address {
+entry:
+  %0 = bitcast %struct.StructWithVptr* %foo to void (%struct.StructWithVptr*)***
+  %vtable = load void (%struct.StructWithVptr*)*** %0, align 8
+  %1 = load void (%struct.StructWithVptr*)** %vtable, align 8
+  tail call void %1(%struct.StructWithVptr* %foo)
+  ret void
+}
+
+; CHECK4-LABEL: define void @CallViaVptr
+; CHECK4: call void @__sanitizer_cov_indir_call16
+; CHECK4: ret void