llvm-project/clang/test/CodeGen/stack-clash-protection.c
Fangrui Song c5de4dd1ea [test] %clang_cc1 -emit-llvm: remove redundant -S
And replace -emit-llvm -o - with -emit-llvm-only
2024-05-04 17:00:29 -07:00

30 lines
1.3 KiB
C

// Check the correct function attributes are generated
// RUN: %clang_cc1 -triple x86_64-linux -O0 -emit-llvm -o- %s -fstack-clash-protection -mstack-probe-size=8192 | FileCheck %s
// RUN: %clang_cc1 -triple s390x-linux-gnu -O0 -emit-llvm -o- %s -fstack-clash-protection -mstack-probe-size=8192 | FileCheck %s
// RUN: %clang_cc1 -triple powerpc64le-linux-gnu -O0 -emit-llvm -o- %s -fstack-clash-protection -mstack-probe-size=8192 | FileCheck %s
// RUN: %clang_cc1 -triple powerpc64-linux-gnu -O0 -emit-llvm -o- %s -fstack-clash-protection -mstack-probe-size=8192 | FileCheck %s
// RUN: %clang_cc1 -triple aarch64-linux-gnu -O0 -emit-llvm -o- %s -fstack-clash-protection -mstack-probe-size=8192 | FileCheck %s
// CHECK: define{{.*}} void @large_stack() #[[A:.*]] {
void large_stack(void) {
volatile int stack[20000], i;
for (i = 0; i < sizeof(stack) / sizeof(int); ++i)
stack[i] = i;
}
// CHECK: define{{.*}} void @vla({{.*}}) #[[A]] {
void vla(int n) {
volatile int vla[n];
__builtin_memset(&vla[0], 0, 1);
}
// CHECK: define{{.*}} void @builtin_alloca({{.*}}) #[[A]] {
void builtin_alloca(int n) {
volatile void *mem = __builtin_alloca(n);
}
// CHECK: attributes #[[A]] = {{.*}}"probe-stack"="inline-asm" {{.*}}"stack-probe-size"="8192"
// CHECK: !{i32 4, !"probe-stack", !"inline-asm"}
// CHECK: !{i32 8, !"stack-probe-size", i32 8192}