File: sibcall-win64.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 (66 lines) | stat: -rw-r--r-- 1,586 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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s

declare dso_local win64cc void @win64_callee(i32)
declare dso_local win64cc ptr @win64_indirect()
declare dso_local win64cc void @win64_other(i32)
declare dso_local void @sysv_callee(i32)
declare dso_local ptr @sysv_indirect()
declare dso_local void @sysv_other(i32)

define void @sysv_caller(i32 %p1) {
entry:
  tail call win64cc void @win64_callee(i32 %p1)
  ret void
}

; CHECK-LABEL: sysv_caller:
; CHECK: subq $40, %rsp
; CHECK: callq win64_callee
; CHECK: addq $40, %rsp
; CHECK: retq

define win64cc void @win64_caller(i32 %p1) {
entry:
  tail call void @sysv_callee(i32 %p1)
  ret void
}

; CHECK-LABEL: win64_caller:
; CHECK: callq sysv_callee
; CHECK: retq

define void @sysv_matched(i32 %p1) {
  tail call void @sysv_callee(i32 %p1)
  ret void
}

; CHECK-LABEL: sysv_matched:
; CHECK: jmp sysv_callee # TAILCALL

define win64cc void @win64_matched(i32 %p1) {
  tail call win64cc void @win64_callee(i32 %p1)
  ret void
}

; CHECK-LABEL: win64_matched:
; CHECK: jmp win64_callee # TAILCALL

define win64cc void @win64_indirect_caller(i32 %p1) {
  %1 = call win64cc ptr @win64_indirect()
  call win64cc void @win64_other(i32 0)
  tail call win64cc void %1(i32 %p1)
  ret void
}

; CHECK-LABEL: win64_indirect_caller:
; CHECK: jmpq *%{{rax|rcx|rdx|r8|r9|r11}} # TAILCALL

define void @sysv_indirect_caller(i32 %p1) {
  %1 = call ptr @sysv_indirect()
  call void @sysv_other(i32 0)
  tail call void %1(i32 %p1)
  ret void
}

; CHECK-LABEL: sysv_indirect_caller:
; CHECK: jmpq *%{{rax|rcx|rdx|rsi|rdi|r8|r9|r11}} # TAILCALL