[asan] Skip promotable allocas to improve performance at -O0

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

diff --git a/test/Instrumentation/AddressSanitizer/stack_layout.ll b/test/Instrumentation/AddressSanitizer/stack_layout.ll
index 97e3bbb587238ea9e4a8bdecea205d73f656f5d9..6575dd62f87652520ffd28022c4924fcb83be551 100644 (file)
--- a/test/Instrumentation/AddressSanitizer/stack_layout.ll
+++ b/test/Instrumentation/AddressSanitizer/stack_layout.ll
@@ -26,6 +26,12 @@ entry:
   %XXX = alloca [10 x i8], align 1
   %YYY = alloca [20 x i8], align 1
   %ZZZ = alloca [30 x i8], align 1
+  %arr1.ptr = bitcast [10 x i8]* %XXX to i8*
+  store volatile i8 0, i8* %arr1.ptr
+  %arr2.ptr = bitcast [20 x i8]* %YYY to i8*
+  store volatile i8 0, i8* %arr2.ptr
+  %arr3.ptr = bitcast [30 x i8]* %ZZZ to i8*
+  store volatile i8 0, i8* %arr3.ptr
   ret void
 }
 
@@ -41,6 +47,12 @@ entry:
   %AAA = alloca [5 x i8], align 1
   %BBB = alloca [55 x i8], align 1
   %CCC = alloca [555 x i8], align 1
+  %arr1.ptr = bitcast [5 x i8]* %AAA to i8*
+  store volatile i8 0, i8* %arr1.ptr
+  %arr2.ptr = bitcast [55 x i8]* %BBB to i8*
+  store volatile i8 0, i8* %arr2.ptr
+  %arr3.ptr = bitcast [555 x i8]* %CCC to i8*
+  store volatile i8 0, i8* %arr3.ptr
   ret void
 }
 
@@ -57,5 +69,11 @@ entry:
   %AAA = alloca [128 x i8], align 16
   %BBB = alloca [128 x i8], align 64
   %CCC = alloca [128 x i8], align 256
+  %arr1.ptr = bitcast [128 x i8]* %AAA to i8*
+  store volatile i8 0, i8* %arr1.ptr
+  %arr2.ptr = bitcast [128 x i8]* %BBB to i8*
+  store volatile i8 0, i8* %arr2.ptr
+  %arr3.ptr = bitcast [128 x i8]* %CCC to i8*
+  store volatile i8 0, i8* %arr3.ptr
   ret void
 }