File: retaddr.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (34 lines) | stat: -rw-r--r-- 915 bytes parent folder | download | duplicates (11) 
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
 
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc-unknown-linux-gnu | FileCheck %s -check-prefix=PPC32
; RUN: llc -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu | FileCheck %s -check-prefix=PPC64

; PPC32: foo
; PPC32: mflr 0
; PPC32: stw 0, 4(1)
; PPC32: stwu 1, -[[STACK:[0-9]+]](1)
; PPC32: lwz [[REG:[0-9]+]], [[RETADDR:[0-9]+]](1)
; PPC32: stw [[REG]], 0(3)
; PPC32: lwz 0, [[RETADDR]](1)
; PPC32: addi 1, 1, [[STACK]]
; PPC32: mtlr 0
; PPC32: blr

; PPC64: foo
; PPC64: mflr 0
; PPC64: std 0, [[RETADDR:[0-9]+]]
; PPC64: stdu 1, -[[STACK:[0-9]+]]
; PPC64: ld [[REG:[0-9]+]]
; PPC64: std [[REG]], 0(3)
; PPC64: addi 1, 1, [[STACK]]
; PPC64: ld 0, [[RETADDR]]
; PPC64: mtlr 0
; PPC64: blr

define void @foo(i8** %X) nounwind {
entry:
	%tmp = tail call i8* @llvm.returnaddress( i32 0 )		; <i8*> [#uses=1]
	store i8* %tmp, i8** %X, align 4
	ret void
}

declare i8* @llvm.returnaddress(i32)