File: pacbti-m-unsupported-arch.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (31 lines) | stat: -rw-r--r-- 964 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
; RUN: llc -mtriple thumbv6m-eabi      %s -o - | FileCheck %s
; RUN: llc -mtriple thumbv8m.base-eabi %s -o - | FileCheck %s
; RUN: llc -mtriple thumbv7a-eabi %s      -o - | FileCheck %s
; RUN: llc -mtriple thumbv7m-eabi      %s -o - | FileCheck %s --check-prefix=CHECK-PACBTI

; Check we don't emit PACBTI-M instructions for architectures
; that do not support them.
define hidden i32 @f(i32 %x) #0 {
entry:
  %x.addr = alloca i32, align 4
  store i32 %x, ptr %x.addr, align 4
  %0 = load i32, ptr %x.addr, align 4
  %sub = sub nsw i32 1, %0
  %call = call i32 @g(i32 %sub)
  %add = add nsw i32 1, %call
  ret i32 %add
}
; CHECK-LABEL: f:
; CHECK-NOT:   bti

; CHECK-PACBTI-LABEL: f:
; CHECK-PACBTI:       pacbti
declare dso_local i32 @g(i32)

attributes #0 = { noinline nounwind }

!llvm.module.flags = !{!0, !1, !2}

!0 = !{i32 8, !"branch-target-enforcement", i32 1}
!1 = !{i32 8, !"sign-return-address", i32 1}
!2 = !{i32 8, !"sign-return-address-all", i32 0}