memtag_lto.c
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// REQUIRES: aarch64-registered-target
// No MTE, so no StackSafety.
// RUN: rm -f %t*
// -O1, no tagging
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -mllvm -stack-safety-print %s -S -o - 2>&1 | FileCheck %s
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -mllvm -stack-safety-print %s -S -o - 2>&1 | FileCheck %s
// Full LTO
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -c %s -flto=full -o %t.lto1.bc
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -c -DBUILD2 %s -flto=full -o %t.lto2.bc
// RUN: llvm-lto2 run -o %t.lto %t.lto1.bc %t.lto2.bc -save-temps -stack-safety-print -thinlto-threads 1 -O1 \
// RUN: -r %t.lto1.bc,fn,plx \
// RUN: -r %t.lto1.bc,use,lx \
// RUN: -r %t.lto1.bc,use_local,plx \
// RUN: -r %t.lto1.bc,w, \
// RUN: -r %t.lto2.bc,use,plx \
// RUN: -r %t.lto2.bc,z, 2>&1 | FileCheck %s --allow-empty
// Full LTO, new PM
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -c %s -flto=full -o %t.ltonewpm1.bc
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -c -DBUILD2 %s -flto=full -o %t.ltonewpm2.bc
// RUN: llvm-lto2 run -use-new-pm -o %t.ltonewpm %t.ltonewpm1.bc %t.ltonewpm2.bc -save-temps -stack-safety-print -thinlto-threads 1 -O1 \
// RUN: -r %t.ltonewpm1.bc,fn,plx \
// RUN: -r %t.ltonewpm1.bc,use,lx \
// RUN: -r %t.ltonewpm1.bc,use_local,plx \
// RUN: -r %t.ltonewpm1.bc,w, \
// RUN: -r %t.ltonewpm2.bc,use,plx \
// RUN: -r %t.ltonewpm2.bc,z, 2>&1 | FileCheck %s --allow-empty
// Thin LTO
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -c %s -flto=thin -o %t.thinlto1.bc
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -c -DBUILD2 %s -flto=thin -o %t.thinlto2.bc
// RUN: llvm-lto2 run -o %t.thinlto %t.thinlto1.bc %t.thinlto2.bc -save-temps -stack-safety-print -thinlto-threads 1 -O1 \
// RUN: -r %t.thinlto1.bc,fn,plx \
// RUN: -r %t.thinlto1.bc,use,lx \
// RUN: -r %t.thinlto1.bc,use_local,plx \
// RUN: -r %t.thinlto1.bc,w, \
// RUN: -r %t.thinlto2.bc,use,plx \
// RUN: -r %t.thinlto2.bc,z, 2>&1 | FileCheck %s --allow-empty
// Thin LTO, new PM
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -c %s -flto=thin -o %t.thinltonewpm1.bc
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -c -DBUILD2 %s -flto=thin -o %t.thinltonewpm2.bc
// RUN: llvm-lto2 run -use-new-pm -o %t.thinltonewpm %t.thinltonewpm1.bc %t.thinltonewpm2.bc -save-temps -stack-safety-print -thinlto-threads 1 -O1 \
// RUN: -r %t.thinltonewpm1.bc,fn,plx \
// RUN: -r %t.thinltonewpm1.bc,use,lx \
// RUN: -r %t.thinltonewpm1.bc,use_local,plx \
// RUN: -r %t.thinltonewpm1.bc,w, \
// RUN: -r %t.thinltonewpm2.bc,use,plx \
// RUN: -r %t.thinltonewpm2.bc,z, 2>&1 | FileCheck %s --allow-empty
// Now with MTE.
// RUN: rm -f %t*
// -O0: both are unsafe.
// RUN: %clang -fno-experimental-new-pass-manager -O0 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -mllvm -stack-safety-print %s -S -o - 2>&1 | FileCheck %s
// RUN: %clang -fexperimental-new-pass-manager -O0 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -mllvm -stack-safety-print %s -S -o - 2>&1 | FileCheck %s
// No LTO: just one is safe.
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -mllvm -stack-safety-print %s -S -o /dev/null 2>&1 | FileCheck %s -check-prefixes=SSI,XUNSAFE,YSAFE
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -mllvm -stack-safety-print %s -S -o /dev/null 2>&1 | FileCheck %s -check-prefixes=SSI,XUNSAFE,YSAFE
// Full LTO: both are safe.
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -c %s -flto=full -o %t.lto1.bc
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -c -DBUILD2 %s -flto=full -o %t.lto2.bc
// RUN: llvm-lto2 run -o %t.lto %t.lto1.bc %t.lto2.bc -save-temps -stack-safety-print -thinlto-threads 1 -O1 \
// RUN: -r %t.lto1.bc,fn,plx \
// RUN: -r %t.lto1.bc,use,lx \
// RUN: -r %t.lto1.bc,use_local,plx \
// RUN: -r %t.lto1.bc,w, \
// RUN: -r %t.lto2.bc,use,plx \
// RUN: -r %t.lto2.bc,z, 2>&1 | FileCheck %s -check-prefixes=SSI,XSAFE,YSAFE
// Full LTO, new PM: both are safe.
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -c %s -flto=full -o %t.ltonewpm1.bc
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -c -DBUILD2 %s -flto=full -o %t.ltonewpm2.bc
// RUN: llvm-lto2 run -use-new-pm -o %t.ltonewpm %t.ltonewpm1.bc %t.ltonewpm2.bc -save-temps -stack-safety-print -thinlto-threads 1 -O1 \
// RUN: -r %t.ltonewpm1.bc,fn,plx \
// RUN: -r %t.ltonewpm1.bc,use,lx \
// RUN: -r %t.ltonewpm1.bc,use_local,plx \
// RUN: -r %t.ltonewpm1.bc,w, \
// RUN: -r %t.ltonewpm2.bc,use,plx \
// RUN: -r %t.ltonewpm2.bc,z, 2>&1 | FileCheck %s -check-prefixes=SSI,XSAFE,YSAFE
// Thin LTO: both are safe.
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -c %s -flto=thin -o %t.thinlto1.bc
// RUN: %clang -fno-experimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -c -DBUILD2 %s -flto=thin -o %t.thinlto2.bc
// RUN: llvm-lto2 run -o %t.thinlto %t.thinlto1.bc %t.thinlto2.bc -save-temps -stack-safety-print -thinlto-threads 1 -O1 \
// RUN: -r %t.thinlto1.bc,fn,plx \
// RUN: -r %t.thinlto1.bc,use,lx \
// RUN: -r %t.thinlto1.bc,use_local,plx \
// RUN: -r %t.thinlto1.bc,w, \
// RUN: -r %t.thinlto2.bc,use,plx \
// RUN: -r %t.thinlto2.bc,z, 2>&1 | FileCheck %s -check-prefixes=SSI,XSAFE,YSAFE
// Thin LTO, new PM: both are safe.
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -c %s -flto=thin -o %t.thinltonewpm1.bc
// RUN: %clang -fexperimental-new-pass-manager -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -c -DBUILD2 %s -flto=thin -o %t.thinltonewpm2.bc
// RUN: llvm-lto2 run -use-new-pm -o %t.thinltonewpm %t.thinltonewpm1.bc %t.thinltonewpm2.bc -save-temps -stack-safety-print -thinlto-threads 1 -O1 \
// RUN: -r %t.thinltonewpm1.bc,fn,plx \
// RUN: -r %t.thinltonewpm1.bc,use,lx \
// RUN: -r %t.thinltonewpm1.bc,use_local,plx \
// RUN: -r %t.thinltonewpm1.bc,w, \
// RUN: -r %t.thinltonewpm2.bc,use,plx \
// RUN: -r %t.thinltonewpm2.bc,z, 2>&1 | FileCheck %s -check-prefixes=SSI,XSAFE,YSAFE
void use(int *p);
#ifdef BUILD2
int z;
__attribute__((noinline)) void use(int *p) { *p = z; }
#else
char w;
__attribute__((noinline)) void use_local(char *p) { *p = w; }
// SSI-LABEL: @fn
// SSI-LABEL: allocas uses:
int fn() {
// XUNSAFE-DAG: [4]: full-set
// XSAFE-DAG: [4]: [0,4)
int x;
use(&x);
// YUNSAFE-DAG: [1]: full-set
// YSAFE-DAG: [1]: [0,1)
char y;
use_local(&y);
return x + y;
}
// CHECK-NOT: allocas uses:
#endif