| ; RUN: llc -mtriple=aarch64-none-linux-gnu < %s | FileCheck %s --check-prefix=NOBTI |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu -global-isel < %s | FileCheck %s --check-prefix=NOBTI |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu -fast-isel < %s | FileCheck %s --check-prefix=NOBTI |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=+no-bti-at-return-twice < %s | \ |
| ; RUN: FileCheck %s --check-prefix=NOBTI |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu -global-isel -mattr=+no-bti-at-return-twice < %s | \ |
| ; RUN: FileCheck %s --check-prefix=NOBTI |
| ; RUN: llc -mtriple=aarch64-none-linux-gnu -fast-isel -mattr=+no-bti-at-return-twice < %s | \ |
| ; RUN: FileCheck %s --check-prefix=NOBTI |
| |
| ; Same as setjmp-bti.ll except that we do not enable branch target enforcement for this |
| ; module. There should be no combination of options that leads to a bti being emitted. |
| |
| ; C source |
| ; -------- |
| ; extern int setjmp(ptr); |
| ; extern void notsetjmp(void); |
| ; |
| ; void bbb(void) { |
| ; setjmp(0); |
| ; int (*fnptr)(ptr) = setjmp; |
| ; fnptr(0); |
| ; notsetjmp(); |
| ; } |
| |
| define void @bbb() { |
| ; NOBTI-LABEL: bbb: |
| ; NOBTI: bl setjmp |
| ; NOBTI-NOT: hint #36 |
| ; NOBTI: blr x{{[0-9]+}} |
| ; NOBTI-NOT: hint #36 |
| ; NOBTI: bl notsetjmp |
| ; NOBTI-NOT: hint #36 |
| |
| entry: |
| %fnptr = alloca ptr, align 8 |
| %call = call i32 @setjmp(ptr noundef null) #0 |
| store ptr @setjmp, ptr %fnptr, align 8 |
| %0 = load ptr, ptr %fnptr, align 8 |
| %call1 = call i32 %0(ptr noundef null) #0 |
| call void @notsetjmp() |
| ret void |
| } |
| |
| declare i32 @setjmp(ptr noundef) #0 |
| declare void @notsetjmp() |
| |
| attributes #0 = { returns_twice } |
| |
| ; !llvm.module.flags = !{!0} |
| ; !0 = !{i32 8, !"branch-target-enforcement", i32 1} |