xref: /llvm-project/llvm/test/CodeGen/X86/tailcall-calleesave.ll (revision 2f448bf509432c1a19ec46ab8cbc7353c03c6280)
1; RUN: llc -tailcallopt -mcpu=core < %s | FileCheck %s
2
3target triple = "i686-apple-darwin"
4
5declare fastcc void @foo(i32, i32, i32, i32, i32, i32)
6declare ptr @bar(ptr)
7
8define fastcc void @hoge(i32 %b) nounwind {
9; Do not overwrite pushed callee-save registers
10; CHECK: pushl
11; CHECK: subl $[[SIZE:[0-9]+]], %esp
12; CHECK-NOT: [[SIZE]](%esp)
13  %a = alloca i32
14  store i32 0, ptr %a
15  %d = tail call ptr @bar(ptr %a) nounwind
16  store i32 %b, ptr %d
17  tail call fastcc void @foo(i32 1, i32 2, i32 3, i32 4, i32 5, i32 6) nounwind
18  ret void
19}
20