File: unwind-init.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm-proposed-updates
  • size: 1,998,492 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (18 lines) | stat: -rw-r--r-- 662 bytes parent folder | download | duplicates (36) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
; RUN: llc -mtriple=armv7-unknown-linux-gnueabi < %s | FileCheck %s
; Check that all callee-saved registers are saved and restored in functions
; that call __builtin_unwind_init(). This is its undocumented behavior in gcc,
; and it is used in compiling libgcc_eh.
; See also PR8541

declare void @llvm.eh.unwind.init()

define void @calls_unwind_init() {
  call void @llvm.eh.unwind.init()
  ret void
}

; CHECK-LABEL: calls_unwind_init:
; CHECK: push    {r4, r5, r6, r7, r8, r9, r10, r11, lr}
; CHECK: vpush   {d8, d9, d10, d11, d12, d13, d14, d15}
; CHECK: vpop    {d8, d9, d10, d11, d12, d13, d14, d15}
; CHECK: pop     {r4, r5, r6, r7, r8, r9, r10, r11, pc}