File: abi_ssp.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (23 lines) | stat: -rw-r--r-- 939 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; RUN: opt -safe-stack -S -mtriple=aarch64-linux-android < %s -o - | FileCheck --check-prefixes=TLS,ANDROID %s
; RUN: opt -safe-stack -S -mtriple=aarch64-unknown-fuchsia < %s -o - | FileCheck --check-prefixes=TLS,FUCHSIA %s

define void @foo() nounwind uwtable safestack sspreq {
entry:
; The first @llvm.thread.pointer is for the unsafe stack pointer, skip it.
; TLS: call i8* @llvm.thread.pointer()

; TLS: %[[TP2:.*]] = call i8* @llvm.thread.pointer()
; ANDROID: %[[B:.*]] = getelementptr i8, i8* %[[TP2]], i32 40
; FUCHSIA: %[[B:.*]] = getelementptr i8, i8* %[[TP2]], i32 -16
; TLS: %[[C:.*]] = bitcast i8* %[[B]] to i8**
; TLS: %[[StackGuard:.*]] = load i8*, i8** %[[C]]
; TLS: store i8* %[[StackGuard]], i8** %[[StackGuardSlot:.*]]
  %a = alloca i128, align 16
  call void @Capture(i128* %a)

; TLS: %[[A:.*]] = load i8*, i8** %[[StackGuardSlot]]
; TLS: icmp ne i8* %[[StackGuard]], %[[A]]
  ret void
}

declare void @Capture(i128*)