File: patchable-prologue-tailcall.ll

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 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 (34 lines) | stat: -rw-r--r-- 970 bytes parent folder | download | duplicates (8) 
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 -mtriple=x86_64-windows-msvc < %s | FileCheck %s --check-prefix=CHECK

; CHECK: f1:
; CHECK-NEXT: # %bb.0:
; CHECK-NEXT: jmp     f0                          # TAILCALL

; CHECK: f2:
; CHECK-NEXT: # %bb.0:
; CHECK-NEXT: jmp     malloc                          # TAILCALL

define ptr @f1(i64 %count) "patchable-function"="prologue-short-redirect" {
entry:
  %call = tail call ptr @f0(i64 %count)
  ret ptr %call
}

declare ptr @f0(i64)

define noalias ptr @f2(i64 %count) "patchable-function"="prologue-short-redirect" {
entry:
  %call = tail call ptr @malloc(i64 %count)
  ret ptr %call
}

declare noalias ptr @malloc(i64) #0

attributes #0 = { allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" }

!llvm.module.flags = !{!0, !1, !2, !3}

!0 = !{i32 1, !"wchar_size", i32 2}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"uwtable", i32 2}
!3 = !{i32 1, !"MaxTLSAlign", i32 65536}