File: saverestore-scs.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (40 lines) | stat: -rw-r--r-- 1,528 bytes parent folder | download | duplicates (2)
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
32
33
34
35
36
37
38
39
40
;; Check that shadow call stack doesn't interfere with save/restore

; RUN: llc -mtriple=riscv32 < %s | FileCheck %s -check-prefix=RV32I
; RUN: llc -mtriple=riscv64 < %s | FileCheck %s -check-prefix=RV64I
; RUN: llc -mtriple=riscv32 -mattr=+save-restore < %s | FileCheck %s -check-prefix=RV32I-SR
; RUN: llc -mtriple=riscv64 -mattr=+save-restore < %s | FileCheck %s -check-prefix=RV64I-SR
; RUN: llc -mtriple=riscv32 -mattr=+f,+save-restore -target-abi=ilp32f < %s | FileCheck %s -check-prefix=RV32I-FP-SR
; RUN: llc -mtriple=riscv64 -mattr=+f,+d,+save-restore -target-abi=lp64d < %s | FileCheck %s -check-prefix=RV64I-FP-SR

@var2 = global [30 x i32] zeroinitializer

define void @callee_scs() nounwind shadowcallstack {
; RV32I-LABEL: callee_scs:
; RV32I-NOT:     call t0, __riscv_save
; RV32I-NOT:     tail __riscv_restore
;
; RV64I-LABEL: callee_scs:
; RV64I-NOT:     call t0, __riscv_save
; RV64I-NOT:     tail __riscv_restore
;
; RV32I-SR-LABEL: callee_scs:
; RV32I-SR:         call t0, __riscv_save_12
; RV32I-SR:         tail __riscv_restore_12
;
; RV64I-SR-LABEL: callee_scs:
; RV64I-SR:         call t0, __riscv_save_12
; RV64I-SR:         tail __riscv_restore_12
;
; RV32I-FP-SR-LABEL: callee_scs:
; RV32I-FP-SR:         call t0, __riscv_save_12
; RV32I-FP-SR:         tail __riscv_restore_12
;
; RV64I-FP-SR-LABEL: callee_scs:
; RV64I-FP-SR:         call t0, __riscv_save_12
; RV64I-FP-SR:         tail __riscv_restore_12
  %val = load [30 x i32], ptr @var2
  store volatile [30 x i32] %val, ptr @var2
  ret void
}