xref: /llvm-project/llvm/test/CodeGen/X86/align-branch-boundary-noautopadding.ll (revision 2f448bf509432c1a19ec46ab8cbc7353c03c6280)
1; RUN: llc -verify-machineinstrs -O3 -mcpu=skylake -x86-align-branch-boundary=32 -x86-align-branch=call -filetype=obj < %s | llvm-objdump -d --no-show-raw-insn - | FileCheck %s
2
3;; This file is a companion to align-branch-boundary-suppressions.ll.
4;; It exists to demonstrate that suppressions are actually wired into the
5;; integrated assembler.
6
7target datalayout = "e-i64:64-f80:128-n8:16:32:64-S128"
8target triple = "x86_64-pc-linux-gnu"
9
10define void @test_statepoint(ptr addrspace(1) %ptr) gc "statepoint-example" {
11; CHECK: 1: callq
12; CHECK-NEXT: 6: callq
13; CHECK-NEXT: b: callq
14; CHECK-NEXT: 10: callq
15; CHECK-NEXT: 15: callq
16; CHECK-NEXT: 1a: callq
17; CHECK-NEXT: 1f: callq
18entry:
19  ; Each of these will be 5 bytes, pushing the statepoint to offset=30.
20  ; For a normal call, this would force padding between the last normal
21  ; call and the safepoint, but since we've suppressed alignment that won't
22  ; happen for the safepoint.  That's non-ideal, we'd really prefer to do
23  ; the alignment and just keep the label with the statepoint call. (TODO)
24  call void @foo()
25  call void @foo()
26  call void @foo()
27  call void @foo()
28  call void @foo()
29  call void @foo()
30  call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(i1 ()) @return_i1, i32 0, i32 0, i32 0, i32 0)
31  ret void
32}
33
34declare void @foo()
35declare zeroext i1 @return_i1()
36declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)
37