1 ; Test -asan-with-ifunc flag. 2 ; 3 ; RUN: opt -asan -asan-module -S -asan-with-ifunc=0 < %s | \ 4 ; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-NOIFUNC 5 ; RUN: opt -asan -asan-module -S -asan-with-ifunc=1 -asan-with-ifunc-suppress-remat=0 < %s | \ 6 ; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-IFUNC 7 ; RUN: opt -asan -asan-module -S -asan-with-ifunc=1 -asan-with-ifunc-suppress-remat=1 < %s | \ 8 ; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-IFUNC-NOREMAT 9 10 ; Pre-Lollipop Android does not support ifunc. 11 ; RUN: opt -asan -asan-module -S -asan-with-ifunc=1 -asan-with-ifunc-suppress-remat=0 -mtriple=armv7-linux-android20 < %s | \ 12 ; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-NOIFUNC 13 ; RUN: opt -asan -asan-module -S -asan-with-ifunc=1 -asan-with-ifunc-suppress-remat=0 -mtriple=armv7-linux-android < %s | \ 14 ; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-NOIFUNC 15 ; RUN: opt -asan -asan-module -S -asan-with-ifunc=1 -asan-with-ifunc-suppress-remat=0 -mtriple=armv7-linux-android21 < %s | \ 16 ; RUN: FileCheck %s --check-prefixes=CHECK,CHECK-IFUNC 17 18 target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" 19 target triple = "armv7--linux-android22" 20 21 ; CHECK-IFUNC: @__asan_shadow = external global [0 x i8] 22 ; CHECK-NOIFUNC: @__asan_shadow_memory_dynamic_address = external global i32 23 24 define i32 @test_load(i32* %a) sanitize_address { 25 ; First instrumentation in the function must be to load the dynamic shadow 26 ; address into a local variable. 27 ; CHECK-LABEL: @test_load 28 ; CHECK: entry: 29 30 ; CHECK-IFUNC-NEXT: %[[A:[^ ]*]] = ptrtoint i32* %a to i32 31 ; CHECK-IFUNC-NEXT: %[[B:[^ ]*]] = lshr i32 %[[A]], 3 32 ; CHECK-IFUNC-NEXT: %[[C:[^ ]*]] = add i32 %[[B]], ptrtoint ([0 x i8]* @__asan_shadow to i32) 33 34 ; CHECK-IFUNC-NOREMAT-NEXT: %[[S:[^ ]*]] = call i32 asm "", "=r,0"([0 x i8]* @__asan_shadow) 35 ; CHECK-IFUNC-NOREMAT-NEXT: %[[A:[^ ]*]] = ptrtoint i32* %a to i32 36 ; CHECK-IFUNC-NOREMAT-NEXT: %[[B:[^ ]*]] = lshr i32 %[[A]], 3 37 ; CHECK-IFUNC-NOREMAT-NEXT: %[[C:[^ ]*]] = add i32 %[[B]], %[[S]] 38 39 ; CHECK-NOIFUNC-NEXT: %[[SHADOW:[^ ]*]] = load i32, i32* @__asan_shadow_memory_dynamic_address 40 ; CHECK-NOIFUNC-NEXT: %[[A:[^ ]*]] = ptrtoint i32* %a to i32 41 ; CHECK-NOIFUNC-NEXT: %[[B:[^ ]*]] = lshr i32 %[[A]], 3 42 ; CHECK-NOIFUNC-NEXT: %[[C:[^ ]*]] = add i32 %[[B]], %[[SHADOW]] 43 44 entry: 45 %x = load i32, i32* %a, align 4 46 ret i32 %x 47 } 48
