File: return-address-emscripten.ll

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (17 lines) | stat: -rw-r--r-- 708 bytes parent folder | download | duplicates (17) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
; RUN: llc -mtriple=wasm32-unknown-emscripten < %s -asm-verbose=false | FileCheck -DPTR=32 %s
; RUN: llc -mtriple=wasm64-unknown-emscripten < %s -asm-verbose=false | FileCheck -DPTR=64 %s

; This tests the implementation of __builtin_return_address on emscripten

; CHECK-LABEL: test_returnaddress:
; CHECK-NEXT: .functype test_returnaddress () -> (i[[PTR]]){{$}}
; CHECK-NEXT: {{^}} i32.const 0{{$}}
; CHECK-NEXT: {{^}} call emscripten_return_address{{$}}
; CHECK-NEXT: {{^}} end_function{{$}}
define ptr @test_returnaddress() {
  %r = call ptr @llvm.returnaddress(i32 0)
  ret ptr %r
}

; LLVM represents __builtin_return_address as call to this function in IR.
declare ptr @llvm.returnaddress(i32 immarg)