llvm/test/CodeGen/X86/sibcall-win64.ll
Reid Kleckner 783f7f989e Don't sibcall between SysV and Win64 convention functions
The shadow stack space expectations won't match.

Fixes PR22709.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230667 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-26 19:43:20 +00:00

43 lines
895 B
LLVM

; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s
declare x86_64_win64cc void @win64_callee(i32)
declare void @sysv_callee(i32)
define void @sysv_caller(i32 %p1) {
entry:
tail call x86_64_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 x86_64_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 x86_64_win64cc void @win64_matched(i32 %p1) {
tail call x86_64_win64cc void @win64_callee(i32 %p1)
ret void
}
; CHECK-LABEL: win64_matched:
; CHECK: jmp win64_callee # TAILCALL