aboutsummaryrefslogtreecommitdiff
path: root/test/Instrumentation/HWAddressSanitizer/with-ifunc.ll
diff options
context:
space:
mode:
Diffstat (limited to 'test/Instrumentation/HWAddressSanitizer/with-ifunc.ll')
-rw-r--r--test/Instrumentation/HWAddressSanitizer/with-ifunc.ll30
1 files changed, 30 insertions, 0 deletions
diff --git a/test/Instrumentation/HWAddressSanitizer/with-ifunc.ll b/test/Instrumentation/HWAddressSanitizer/with-ifunc.ll
new file mode 100644
index 00000000000..2f4abb49b29
--- /dev/null
+++ b/test/Instrumentation/HWAddressSanitizer/with-ifunc.ll
@@ -0,0 +1,30 @@
+; Test -hwasan-with-ifunc flag.
+;
+; RUN: opt -hwasan -S < %s | \
+; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-IFUNC
+; RUN: opt -hwasan -S -hwasan-with-ifunc=0 < %s | \
+; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-NOIFUNC
+; RUN: opt -hwasan -S -hwasan-with-ifunc=1 < %s | \
+; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-IFUNC
+
+target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64--linux-android22"
+
+; CHECK-IFUNC: @__hwasan_shadow = external global [0 x i8]
+; CHECK-NOIFUNC: @__hwasan_shadow_memory_dynamic_address = external global i64
+
+define i32 @test_load(i32* %a) sanitize_hwaddress {
+; First instrumentation in the function must be to load the dynamic shadow
+; address into a local variable.
+; CHECK-LABEL: @test_load
+; CHECK: entry:
+
+; CHECK-IFUNC: %[[A:[^ ]*]] = call i64 asm "", "=r,0"([0 x i8]* @__hwasan_shadow)
+; CHECK-IFUNC: add i64 %{{.*}}, %[[A]]
+
+; CHECK-NOIFUNC: load i64, i64* @__hwasan_shadow_memory_dynamic_address
+
+entry:
+ %x = load i32, i32* %a, align 4
+ ret i32 %x
+}