| ; Test the ASan's stack layout. |
| ; More tests in tests/Transforms/Utils/ASanStackFrameLayoutTest.cpp |
| ; RUN: opt < %s -asan -asan-module -asan-stack-dynamic-alloca=0 -S \ |
| ; RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-STATIC |
| ; RUN: opt < %s -asan -asan-module -asan-stack-dynamic-alloca=1 -S \ |
| ; RUN: | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-DYNAMIC |
| |
| 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-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| declare void @Use(i8*) |
| |
| ; CHECK: private unnamed_addr constant{{.*}}3 32 10 3 XXX 64 20 3 YYY 128 30 3 ZZZ |
| ; CHECK: private unnamed_addr constant{{.*}}3 32 5 3 AAA 64 55 3 BBB 160 555 3 CCC |
| ; CHECK: private unnamed_addr constant{{.*}}3 256 128 3 CCC 448 128 3 BBB 608 128 3 AAA |
| |
| define void @Func1() sanitize_address { |
| entry: |
| ; CHECK-LABEL: Func1 |
| |
| ; CHECK-STATIC: alloca [192 x i8] |
| ; CHECK-DYNAMIC: alloca i8, i64 192 |
| |
| ; CHECK-NOT: alloca |
| ; CHECK: ret void |
| %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 |
| } |
| |
| define void @Func2() sanitize_address { |
| entry: |
| ; CHECK-LABEL: Func2 |
| |
| ; CHECK-STATIC: alloca [864 x i8] |
| ; CHECK-DYNAMIC: alloca i8, i64 864 |
| |
| ; CHECK-NOT: alloca |
| ; CHECK: ret void |
| %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 |
| } |
| |
| ; Check that we reorder vars according to alignment and handle large alignments. |
| define void @Func3() sanitize_address { |
| entry: |
| ; CHECK-LABEL: Func3 |
| |
| ; CHECK-STATIC: alloca [768 x i8] |
| ; CHECK-DYNAMIC: alloca i8, i64 768 |
| |
| ; CHECK-NOT: alloca |
| ; CHECK: ret void |
| %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 |
| } |