File: sjlj-eh-musttail.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 (31 lines) | stat: -rw-r--r-- 950 bytes parent folder | download | duplicates (13) 
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
 
; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39439.
; RUN: llc -mtriple i386-windows-gnu -exception-model sjlj -filetype asm -o - %s -verify-machineinstrs=0 | FileCheck %s

declare void @_Z20function_that_throwsv()
declare i32 @__gxx_personality_sj0(...)
declare ptr @__cxa_begin_catch(ptr)
declare void @__cxa_end_catch()
declare void @_callee();

define void @_Z8functionv() personality ptr @__gxx_personality_sj0 {
entry:
  invoke void @_Z20function_that_throwsv()
          to label %try.cont unwind label %lpad

lpad:
  %0 = landingpad { ptr, i32 }
          catch ptr null
  %1 = extractvalue { ptr, i32 } %0, 0
  %2 = tail call ptr @__cxa_begin_catch(ptr %1)
  tail call void @__cxa_end_catch()
  br label %try.cont

try.cont:
  musttail call void @_callee();
  ret void
}

; CHECK-LABEL: __Z8functionv:
; CHECK:         calll   __Unwind_SjLj_Unregister
; CHECK-NOT:     {{.*}}:
; CHECK:         jmp     __callee