[asan] Assign a low branch weight to ASan's slow path, patch by Jonas Wagner. This...

[oota-llvm.git] / test / Instrumentation / AddressSanitizer / test64.ll

diff --git a/test/Instrumentation/AddressSanitizer/test64.ll b/test/Instrumentation/AddressSanitizer/test64.ll
index e26fb3dbdda5dedf20173f43a4b07b3234111d38..fd93f4576ae45ebae6407f80c459b6f43ecd2a93 100644 (file)
--- a/test/Instrumentation/AddressSanitizer/test64.ll
+++ b/test/Instrumentation/AddressSanitizer/test64.ll
@@ -1,14 +1,40 @@
-; RUN: opt < %s -asan -S | FileCheck %s
+; 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"
-define i32 @read_4_bytes(i32* %a) {
+define i32 @read_4_bytes(i32* %a) sanitize_address {
 entry:
   %tmp1 = load i32* %a, align 4
   ret i32 %tmp1
 }
-; CHECK: @read_4_bytes
+; CHECK-LABEL: @read_4_bytes
 ; CHECK-NOT: ret
 ; CHECK: lshr {{.*}} 3
-; Check for ASAN's Offset for 64-bit (2^44)
-; CHECK-NEXT: 17592186044416
+; Check for ASAN's Offset for 64-bit (7fff8000)
+; CHECK-NEXT: add{{.*}}2147450880
+; CHECK: ret
+
+define void @example_atomicrmw(i64* %ptr) nounwind uwtable sanitize_address {
+entry:
+  %0 = atomicrmw add i64* %ptr, i64 1 seq_cst
+  ret void
+}
+
+; CHECK-LABEL: @example_atomicrmw
+; CHECK: lshr {{.*}} 3
+; CHECK: __asan_report_store8
+; CHECK-NOT: __asan_report
+; CHECK: atomicrmw
+; CHECK: ret
+
+define void @example_cmpxchg(i64* %ptr, i64 %compare_to, i64 %new_value) nounwind uwtable sanitize_address {
+entry:
+  %0 = cmpxchg i64* %ptr, i64 %compare_to, i64 %new_value seq_cst seq_cst
+  ret void
+}
+
+; CHECK-LABEL: @example_cmpxchg
+; CHECK: lshr {{.*}} 3
+; CHECK: __asan_report_store8
+; CHECK-NOT: __asan_report
+; CHECK: cmpxchg
 ; CHECK: ret